Altimmune, Inc.

3.15

-0.0500-1.56%

Post-market: 3.160.0100+0.32%19:06 EDT

Volume:4.05M

Turnover:12.71M

Market Cap:611.10M

PE:-4.14

High:3.20

Open:3.20

Low:3.09

Close:3.20

52wk High:6.44

52wk Low:2.56

Shares:194.00M

Float Shares:164.00M

Volume Ratio:0.72

T/O Rate:2.47%

Dividend:- -

Dividend Rate:- -

EPS(TTM):-0.7600

EPS(LYR):-0.9999

ROE:-28.87%

ROA:-17.20%

PB:1.29

PE(LYR):-3.15

Loading ...

Overview Company News Filings

Aug 12, 2026

{"basename":"","ssrTDKData":{"titleTemplate":"%s - Tiger Brokers","title":"Easy breezy. No more feesies.","description":"Tiger Trade is a mobile trading app offering real time data, low commission fees and a free demo account. Download now to start investing in ETFs, options and the global share market.","keywords":"Tiger Brokers,U.S. stock trading,Hong Kong stock trading,trading U.S. stocks,stock information,stock prices,U.S. stock quotes,U.S. stock trading,Hong Kong stock trading,IPO trading,buying U.S. stocks,global investment","social":{"ogDescription":"Tiger Trade is a mobile trading app offering real time data, low commission fees and a free demo account. Download now to start investing in ETFs, options and the global share market.","ogImage":"https://c1.itigergrowtha.com/portal5/static/media/og-logo.0a0bd8dc.png","ogUrl":"https://nz.tigermarketb.com/stock/ALT/filings"},"companyName":"Tiger Brokers"},"pageData":{"isMobile":false,"isTiger":false,"isTTM":true,"region":"NZL","license":"TBKIWI","edition":"fundamental","symbol":"ALT","isAnalysisPage":false},"__swrFallback__":{"@#url:\"https://hq.skytigris.cn/stock_info/detail/global\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"ALT\",,,,,undefined,":{"symbol":"ALT","market":"US","secType":"STK","nameCN":"Altimmune, Inc.","latestPrice":3.15,"timestamp":1787774400000,"preClose":3.2,"halted":0,"volume":4047041,"hourTrading":{"tag":"盘后","latestPrice":3.16,"preClose":3.15,"latestTime":"19:06 EDT","volume":33663,"amount":106052.3629179,"timestamp":1787785584767,"change":0.01,"changeRate":0.003175,"amplitude":0.020762},"delay":0,"changeRate":-0.015625000000000083,"floatShares":164000000,"shares":194000000,"eps":-0.76,"marketStatus":"Post-Mkt","change":-0.05,"latestTime":"08-26 19:22:53 EDT","open":3.2,"high":3.2,"low":3.09,"amount":12706590.9472758,"amplitude":0.034375,"askPrice":3.21,"askSize":68,"bidPrice":3.14,"bidSize":890,"shortable":3,"etf":0,"ttmEps":-0.76,"tradingStatus":3,"nextMarketStatus":{"tag":"Closed","tradingStatus":0,"beginTime":1787788800000},"marketStatusCode":4,"adr":0,"adrRate":0,"exchange":"NASDAQ","adjPreClose":3.2,"preHourTrading":{"tag":"盘前","latestPrice":3.1991,"preClose":3.2,"latestTime":"09:25 EDT","volume":2064,"amount":6607.5849552,"timestamp":1787750728285,"change":-0.0009,"changeRate":-0.000281,"amplitude":0.0125},"postHourTrading":{"tag":"盘后","latestPrice":3.16,"preClose":3.15,"latestTime":"19:06 EDT","volume":33663,"amount":106052.3629179,"timestamp":1787785584767,"change":0.01,"changeRate":0.003175,"amplitude":0.020762},"volumeRatio":0.717376,"impliedVol":0.551,"impliedVolPercentile":0.0956},"@#url:\"https://hq.skytigris.cn/stock_info/fundamental/all\",params:#delay:false,,method:\"POST\",data:#items:@#symbol:\"ALT\",,,,,undefined,":{"symbol":"ALT","floatShares":164000000,"roa":"-17.20%","roe":"-28.87%","lyrEps":-0.999873,"volumeRatio":0.717376,"shares":194000000,"dividePrice":0,"high":3.2,"amplitude":0.034375,"preClose":3.2,"low":3.09,"week52Low":2.56,"pbRate":"1.29","psRate":"19712.90","week52High":6.4399,"institutionHeld":0.7624,"latestPrice":3.15,"committee":0.858038,"eps":-0.76,"divideRate":0,"volume":4047041,"delay":0,"ttmEps":-0.76,"open":3.2,"prevYearClose":3.61,"prevWeekClose":3.11,"prevMonthClose":2.84,"prevQuarterClose":3.04,"fiveDayClose":3.12,"twentyDayClose":2.92,"sixtyDayClose":3.01},"@#url:\"https://hq.skytigris.cn/fundamental/corporate_actions/details/ALT\",params:#limit:5,,,undefined,":[{"market":"US","date":"2026-08-12","symbol":"ALT","fiscalQuarterEnding":"2026/06","expectedEps":-0.15,"name":null,"time":"Pre-MKt","type":"earning","dateTimestamp":1786507200000,"reportTimeType":"pre","actualEps":-0.12},{"market":"US","date":"2026-05-13","symbol":"ALT","fiscalQuarterEnding":"2026/03","expectedEps":-0.25,"name":null,"time":"Pre-MKt","type":"earning","dateTimestamp":1778644800000,"reportTimeType":"pre","actualEps":-0.18},{"market":"US","date":"2026-03-05","symbol":"ALT","fiscalQuarterEnding":"2025/12","expectedEps":-0.25,"name":null,"time":"Pre-MKt","type":"earning","dateTimestamp":1772686800000,"reportTimeType":"pre","actualEps":-0.27},{"market":"US","date":"2025-11-06","symbol":"ALT","fiscalQuarterEnding":"2025/09","expectedEps":-0.29,"name":null,"time":"Pre-MKt","type":"earning","dateTimestamp":1762405200000,"reportTimeType":"pre","actualEps":-0.21},{"market":"US","date":"2025-08-12","symbol":"ALT","fiscalQuarterEnding":"2025/06","expectedEps":-0.32,"name":null,"time":"Pre-MKt","type":"earning","dateTimestamp":1754971200000,"reportTimeType":"pre","actualEps":-0.27}],"@#url:\"https://hq.skytigris.cn/fundamental/dividend/history\",params:#symbol:\"ALT\",market:\"US\",,,undefined,":[],"@#url:\"https://hq.skytigris.cn/fundamental/estimate/recommendation\",params:#symbol:\"ALT\",market:\"US\",delay:false,,,undefined,":{"strongBuy":0.2727,"buy":0.6364,"hold":0.0909,"sell":0,"strongSell":0,"meanLabel":"BUY","meanPercent":0.6364,"analysts":11,"updateTime":1782187200000},"@#url:\"https://hq.skytigris.cn/value_analysis/stock/ALT\",params:#withQuantilePoint:true,period:\"5year\",factor:\"peRate\",delay:false,algorithm:1,,,undefined,":{"brief":{"id":"ALT","date":"2026-08-25","current":-4.144737,"percent":0.174267,"low":-11.212671,"twenty":-6.456483,"median":-4.961303,"eighty":-3.279387,"high":-1.406077,"avg":-4.948671,"sd":1.92779,"marketCap":604950050},"quantilePoints":[{"date":"2021-08-27","current":-8.542517,"twenty":-9.583629,"median":-1.12906,"eighty":-0.630603,"marketCap":581599443},{"date":"2021-09-03","current":-9.554361,"twenty":-9.558349,"median":-1.132786,"eighty":-0.630952,"marketCap":650488690},{"date":"2021-09-10","current":-9.775338,"twenty":-9.591169,"median":-1.136512,"eighty":-0.630952,"marketCap":665533468},{"date":"2021-09-17","current":-8.862353,"twenty":-9.605176,"median":-1.137989,"eighty":-0.631686,"marketCap":603374780},{"date":"2021-09-24","current":-8.705343,"twenty":-9.600447,"median":-1.155144,"eighty":-0.635355,"marketCap":592685069},{"date":"2021-10-01","current":-6.949155,"twenty":-9.591169,"median":-1.16462,"eighty":-0.638289,"marketCap":473118675},{"date":"2021-10-08","current":-7.077089,"twenty":-9.559679,"median":-1.173775,"eighty":-0.638289,"marketCap":481828810},{"date":"2021-10-15","current":-6.984046,"twenty":-9.554182,"median":-1.181272,"eighty":-0.638815,"marketCap":475494167},{"date":"2021-10-22","current":-6.699101,"twenty":-9.550655,"median":-1.192207,"eighty":-0.641115,"marketCap":456094321},{"date":"2021-10-29","current":-6.280407,"twenty":-9.538907,"median":-1.192406,"eighty":-0.641912,"marketCap":427588426},{"date":"2021-11-05","current":-6.303668,"twenty":-9.536915,"median":-1.195875,"eighty":-0.642691,"marketCap":429172087},{"date":"2021-11-12","current":-5.254536,"twenty":-9.534318,"median":-1.207066,"eighty":-0.645626,"marketCap":440449772},{"date":"2021-11-19","current":-4.989681,"twenty":-9.517742,"median":-1.21849,"eighty":-0.645626,"marketCap":418248884},{"date":"2021-11-26","current":-4.928196,"twenty":-9.492985,"median":-1.222217,"eighty":-0.645626,"marketCap":413095106},{"date":"2021-12-03","current":-4.483618,"twenty":-9.492985,"median":-1.234811,"eighty":-0.645626,"marketCap":375829329},{"date":"2021-12-10","current":-4.455241,"twenty":-9.478066,"median":-1.237122,"eighty":-0.645626,"marketCap":373450662},{"date":"2021-12-17","current":-4.426864,"twenty":-9.474354,"median":-1.242711,"eighty":-0.645626,"marketCap":371071995},{"date":"2021-12-23","current":-4.351191,"twenty":-9.464501,"median":-1.250163,"eighty":-0.64856,"marketCap":364728884},{"date":"2021-12-31","current":-4.332272,"twenty":-9.444757,"median":-1.266932,"eighty":-0.649294,"marketCap":363143107},{"date":"2022-01-07","current":-3.916072,"twenty":-9.429228,"median":-1.270658,"eighty":-0.649294,"marketCap":328255996},{"date":"2022-01-14","current":-3.707971,"twenty":-9.419545,"median":-1.300468,"eighty":-0.649294,"marketCap":310812440},{"date":"2022-01-21","current":-3.305959,"twenty":-9.395156,"median":-1.357281,"eighty":-0.649294,"marketCap":277114663},{"date":"2022-01-28","current":-3.40528,"twenty":-9.375518,"median":-1.896273,"eighty":-0.649294,"marketCap":285439996},{"date":"2022-02-04","current":-3.622839,"twenty":-9.356009,"median":-2.181903,"eighty":-0.649294,"marketCap":303676441},{"date":"2022-02-11","current":-3.632298,"twenty":-9.294535,"median":-2.226131,"eighty":-0.651495,"marketCap":304469329},{"date":"2022-02-18","current":-3.339066,"twenty":-9.255468,"median":-2.240874,"eighty":-0.652962,"marketCap":279889774},{"date":"2022-02-25","current":-3.599191,"twenty":-9.25041,"median":-2.262988,"eighty":-0.65443,"marketCap":301694218},{"date":"2022-03-04","current":-3.277582,"twenty":-9.216158,"median":-2.281416,"eighty":-0.656631,"marketCap":274735996},{"date":"2022-03-11","current":-3.29177,"twenty":-9.164959,"median":-2.299844,"eighty":-0.656631,"marketCap":275925330},{"date":"2022-03-18","current":-3.187041,"twenty":-9.152685,"median":-2.321958,"eighty":-0.656631,"marketCap":309429796},{"date":"2022-03-25","current":-2.824576,"twenty":-9.120812,"median":-2.329329,"eighty":-0.656889,"marketCap":274238058},{"date":"2022-04-01","current":-2.749431,"twenty":-9.069815,"median":-2.351443,"eighty":-0.658485,"marketCap":266942209},{"date":"2022-04-08","current":-2.510734,"twenty":-9.026468,"median":-2.395671,"eighty":-0.660299,"marketCap":243767162},{"date":"2022-04-14","current":-2.31182,"twenty":-9.002244,"median":-2.403042,"eighty":-0.660299,"marketCap":224454623},{"date":"2022-04-22","current":-2.006819,"twenty":-8.981208,"median":-2.373557,"eighty":-0.660299,"marketCap":194842063},{"date":"2022-04-29","current":-1.997978,"twenty":-8.97802,"median":-2.3367,"eighty":-0.660463,"marketCap":193983728},{"date":"2022-05-06","current":-1.913993,"twenty":-8.974196,"median":-2.325643,"eighty":-0.661689,"marketCap":185829544},{"date":"2022-05-13","current":-2.19104,"twenty":-8.962867,"median":-2.314587,"eighty":-0.663967,"marketCap":222734186},{"date":"2022-05-20","current":-2.131593,"twenty":-8.93653,"median":-2.296159,"eighty":-0.664701,"marketCap":216691010},{"date":"2022-05-27","current":-2.13584,"twenty":-8.925681,"median":-2.280878,"eighty":-0.66787,"marketCap":217122666},{"date":"2022-06-03","current":-2.309934,"twenty":-8.905008,"median":-2.27773,"eighty":-0.668807,"marketCap":234820537},{"date":"2022-06-10","current":-3.630503,"twenty":-8.886226,"median":-2.28299,"eighty":-0.668883,"marketCap":369065367},{"date":"2022-06-17","current":-3.830074,"twenty":-8.882388,"median":-2.299844,"eighty":-0.671304,"marketCap":389353170},{"date":"2022-06-24","current":-4.369342,"twenty":-8.86636,"median":-2.31182,"eighty":-0.671304,"marketCap":444173406},{"date":"2022-07-01","current":-4.781223,"twenty":-8.859328,"median":-2.321958,"eighty":-0.671304,"marketCap":486043980},{"date":"2022-07-08","current":-5.379938,"twenty":-8.843395,"median":-2.329329,"eighty":-0.672112,"marketCap":546907391},{"date":"2022-07-15","current":-4.810947,"twenty":-8.833277,"median":-2.3367,"eighty":-0.673733,"marketCap":489065568},{"date":"2022-07-22","current":-5.554032,"twenty":-8.79056,"median":-2.3883,"eighty":-0.674765,"marketCap":564605263},{"date":"2022-07-29","current":-5.099688,"twenty":-8.752462,"median":-2.431168,"eighty":-0.674972,"marketCap":518418135},{"date":"2022-08-05","current":-5.26529,"twenty":-8.743932,"median":-2.458327,"eighty":-0.677129,"marketCap":535252696},{"date":"2022-08-12","current":-8.685942,"twenty":-8.727192,"median":-2.479782,"eighty":-0.678611,"marketCap":841987671},{"date":"2022-08-19","current":-8.585874,"twenty":-8.767651,"median":-2.479782,"eighty":-0.678611,"marketCap":832287353},{"date":"2022-08-26","current":-9.231316,"twenty":-8.857064,"median":-2.479782,"eighty":-0.678611,"marketCap":894854409},{"date":"2022-09-02","current":-11.212671,"twenty":-8.915344,"median":-2.479782,"eighty":-0.678611,"marketCap":1086920721},{"date":"2022-09-09","current":-9.996839,"twenty":-8.976745,"median":-2.479782,"eighty":-0.678611,"marketCap":969061848},{"date":"2022-09-16","current":-6.839679,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":663016789},{"date":"2022-09-23","current":-6.189234,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":599964717},{"date":"2022-09-30","current":-6.453807,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":625611519},{"date":"2022-10-07","current":-5.28636,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":512442952},{"date":"2022-10-14","current":-5.256037,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":509503508},{"date":"2022-10-21","current":-5.422815,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":525670447},{"date":"2022-10-28","current":-6.453807,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":625611519},{"date":"2022-11-04","current":-5.983796,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":580050148},{"date":"2022-11-11","current":-6.042666,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":525366485},{"date":"2022-11-18","current":-4.996929,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":434447121},{"date":"2022-11-25","current":-5.138245,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":446733522},{"date":"2022-12-02","current":-6.376172,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":554362390},{"date":"2022-12-09","current":-5.709161,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":496370580},{"date":"2022-12-16","current":-6.489225,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":564191510},{"date":"2022-12-23","current":-8.665489,"twenty":-8.992045,"median":-2.479782,"eighty":-0.678611,"marketCap":753402078},{"date":"2022-12-30","current":-9.298584,"twenty":-9.046009,"median":-2.479782,"eighty":-0.678611,"marketCap":808445152},{"date":"2023-01-06","current":-8.077615,"twenty":-9.046009,"median":-2.550468,"eighty":-0.678611,"marketCap":702290652},{"date":"2023-01-13","current":-9.208142,"twenty":-9.082964,"median":-2.674285,"eighty":-0.678611,"marketCap":800581856},{"date":"2023-01-20","current":-8.111531,"twenty":-9.082964,"median":-2.74501,"eighty":-0.678611,"marketCap":705239388},{"date":"2023-01-27","current":-7.478436,"twenty":-9.082964,"median":-2.834635,"eighty":-0.678611,"marketCap":650196314},{"date":"2023-02-03","current":-8.569394,"twenty":-9.082964,"median":-3.041104,"eighty":-0.682837,"marketCap":745047326},{"date":"2023-02-10","current":-7.591488,"twenty":-9.082964,"median":-3.089794,"eighty":-0.692599,"marketCap":660025434},{"date":"2023-02-17","current":-6.760551,"twenty":-9.082964,"median":-3.29177,"eighty":-0.706713,"marketCap":587781399},{"date":"2023-02-24","current":-6.771856,"twenty":-9.082964,"median":-3.329607,"eighty":-0.719867,"marketCap":588764311},{"date":"2023-03-03","current":-6.742082,"twenty":-9.082964,"median":-3.358746,"eighty":-0.742102,"marketCap":571141998},{"date":"2023-03-10","current":-6.032389,"twenty":-9.082964,"median":-3.414739,"eighty":-0.768114,"marketCap":511021788},{"date":"2023-03-17","current":-6.404687,"twenty":-9.082964,"median":-3.495141,"eighty":-0.78253,"marketCap":542560259},{"date":"2023-03-24","current":-2.513011,"twenty":-9.082964,"median":-3.5046,"eighty":-0.796016,"marketCap":212884679},{"date":"2023-03-31","current":-2.454839,"twenty":-9.080548,"median":-3.499871,"eighty":-0.802556,"marketCap":207956793},{"date":"2023-04-06","current":-2.251239,"twenty":-9.080548,"median":-3.499871,"eighty":-0.804482,"marketCap":190709192},{"date":"2023-04-14","current":-2.681708,"twenty":-9.082964,"median":-3.5046,"eighty":-0.809804,"marketCap":227175549},{"date":"2023-04-21","current":-3.33323,"twenty":-9.082964,"median":-3.5046,"eighty":-0.816048,"marketCap":282367873},{"date":"2023-04-28","current":-2.885309,"twenty":-9.085381,"median":-3.51872,"eighty":-0.82152,"marketCap":244423150},{"date":"2023-05-05","current":-2.873674,"twenty":-9.085381,"median":-3.51872,"eighty":-0.831857,"marketCap":243437573},{"date":"2023-05-12","current":-3.100543,"twenty":-9.085381,"median":-3.51872,"eighty":-0.840814,"marketCap":262656329},{"date":"2023-05-19","current":-2.569103,"twenty":-9.085381,"median":-3.51872,"eighty":-0.844264,"marketCap":219290931},{"date":"2023-05-26","current":-2.431202,"twenty":-9.085381,"median":-3.51872,"eighty":-0.854355,"marketCap":207520115},{"date":"2023-06-02","current":-2.396553,"twenty":-9.085381,"median":-3.51872,"eighty":-0.858045,"marketCap":204562584},{"date":"2023-06-09","current":-2.361904,"twenty":-9.085381,"median":-3.51872,"eighty":-0.86619,"marketCap":201605053},{"date":"2023-06-16","current":-2.361904,"twenty":-9.085381,"median":-3.51872,"eighty":-0.879261,"marketCap":201605053},{"date":"2023-06-23","current":-2.402328,"twenty":-9.087797,"median":-3.53284,"eighty":-0.88307,"marketCap":205055506},{"date":"2023-06-30","current":-2.021189,"twenty":-9.090214,"median":-3.532909,"eighty":-0.895974,"marketCap":172522661},{"date":"2023-07-07","current":-1.940342,"twenty":-9.090214,"median":-3.532909,"eighty":-0.899395,"marketCap":165621755},{"date":"2023-07-14","current":-1.957666,"twenty":-9.090214,"median":-3.532909,"eighty":-0.906287,"marketCap":167100520},{"date":"2023-07-21","current":-1.836395,"twenty":-9.090214,"median":-3.532909,"eighty":-0.909901,"marketCap":156749161},{"date":"2023-07-28","current":-1.726673,"twenty":-9.090214,"median":-3.532909,"eighty":-0.919185,"marketCap":147383645},{"date":"2023-08-04","current":-1.795971,"twenty":-9.090214,"median":-3.532909,"eighty":-0.928329,"marketCap":153298707},{"date":"2023-08-11","current":-1.969804,"twenty":-9.090214,"median":-3.532909,"eighty":-0.937755,"marketCap":160166735},{"date":"2023-08-18","current":-1.743017,"twenty":-9.090214,"median":-3.532909,"eighty":-0.941735,"marketCap":141726485},{"date":"2023-08-25","current":-1.587507,"twenty":-9.090214,"median":-3.532909,"eighty":-0.945086,"marketCap":129081743},{"date":"2023-09-01","current":-1.639343,"twenty":-9.090214,"median":-3.532909,"eighty":-0.956324,"marketCap":133296657},{"date":"2023-09-08","current":-1.593986,"twenty":-9.090214,"median":-3.532909,"eighty":-0.958492,"marketCap":129608607},{"date":"2023-09-15","current":-1.807814,"twenty":-9.090214,"median":-3.532909,"eighty":-0.970251,"marketCap":146995128},{"date":"2023-09-22","current":-1.658782,"twenty":-9.090214,"median":-3.532909,"eighty":-0.979536,"marketCap":134877250},{"date":"2023-09-29","current":-1.619905,"twenty":-9.090214,"median":-3.532909,"eighty":-0.985303,"marketCap":131716065},{"date":"2023-10-06","current":-1.684701,"twenty":-9.090214,"median":-3.532909,"eighty":-0.991188,"marketCap":136984707},{"date":"2023-10-13","current":-1.69118,"twenty":-9.090214,"median":-3.532909,"eighty":-1.00206,"marketCap":137511571},{"date":"2023-10-20","current":-1.509751,"twenty":-9.090214,"median":-3.532909,"eighty":-1.006093,"marketCap":122759372},{"date":"2023-10-27","current":-1.503271,"twenty":-9.120812,"median":-3.537707,"eighty":-1.019689,"marketCap":122232508},{"date":"2023-11-03","current":-1.658782,"twenty":-9.120812,"median":-3.537707,"eighty":-1.028451,"marketCap":134877250},{"date":"2023-11-10","current":-1.677615,"twenty":-9.120812,"median":-3.537707,"eighty":-1.034911,"marketCap":131635733},{"date":"2023-11-17","current":-1.615988,"twenty":-9.120812,"median":-3.537707,"eighty":-1.035705,"marketCap":126800135},{"date":"2023-11-24","current":-1.924122,"twenty":-9.120812,"median":-3.537707,"eighty":-1.035705,"marketCap":150978127},{"date":"2023-12-01","current":-2.163781,"twenty":-9.120812,"median":-3.537707,"eighty":-1.035705,"marketCap":169783232},{"date":"2023-12-08","current":-4.505594,"twenty":-9.110613,"median":-3.544802,"eighty":-1.035771,"marketCap":353535971},{"date":"2023-12-15","current":-4.793186,"twenty":-9.110613,"median":-3.60865,"eighty":-1.041865,"marketCap":376102097},{"date":"2023-12-22","current":-5.402605,"twenty":-9.110613,"median":-3.686688,"eighty":-1.046438,"marketCap":423920792},{"date":"2023-12-29","current":-7.956688,"twenty":-9.120812,"median":-3.745808,"eighty":-1.059015,"marketCap":624329481},{"date":"2024-01-05","current":-8.00462,"twenty":-9.131012,"median":-3.795468,"eighty":-1.062066,"marketCap":628090501},{"date":"2024-01-12","current":-7.867672,"twenty":-9.131012,"median":-3.884844,"eighty":-1.073911,"marketCap":617344727},{"date":"2024-01-19","current":-7.388353,"twenty":-9.141211,"median":-4.008415,"eighty":-1.078488,"marketCap":579734518},{"date":"2024-01-26","current":-6.354395,"twenty":-9.131012,"median":-4.119442,"eighty":-1.078619,"marketCap":498603922},{"date":"2024-02-02","current":-6.765239,"twenty":-9.131012,"median":-4.20221,"eighty":-1.078619,"marketCap":530841245},{"date":"2024-02-09","current":-6.635138,"twenty":-9.131012,"median":-4.339366,"eighty":-1.078619,"marketCap":520632759},{"date":"2024-02-16","current":-6.12843,"twenty":-9.131012,"median":-4.37682,"eighty":-1.078619,"marketCap":480873395},{"date":"2024-02-23","current":-6.073651,"twenty":-9.131012,"median":-4.459875,"eighty":-1.082595,"marketCap":476575085},{"date":"2024-03-01","current":-8.285364,"twenty":-9.152685,"median":-4.505594,"eighty":-1.101931,"marketCap":650119339},{"date":"2024-03-08","current":-6.86795,"twenty":-9.152685,"median":-4.658612,"eighty":-1.122353,"marketCap":538900576},{"date":"2024-03-15","current":-6.864526,"twenty":-9.152685,"median":-4.78631,"eighty":-1.163594,"marketCap":538631931},{"date":"2024-03-22","current":-6.237989,"twenty":-9.152685,"median":-4.819439,"eighty":-1.201744,"marketCap":489470014},{"date":"2024-03-28","current":-7.125839,"twenty":-9.152685,"median":-4.887378,"eighty":-1.371955,"marketCap":630259092},{"date":"2024-04-05","current":-7.133855,"twenty":-9.15651,"median":-4.944847,"eighty":-1.549925,"marketCap":630968045},{"date":"2024-04-12","current":-6.733076,"twenty":-9.15651,"median":-4.976853,"eighty":-1.582323,"marketCap":595520402},{"date":"2024-04-19","current":-5.522726,"twenty":-9.15651,"median":-5.010669,"eighty":-1.603058,"marketCap":488468520},{"date":"2024-04-26","current":-5.771208,"twenty":-9.152685,"median":-5.065719,"eighty":-1.622497,"marketCap":510446059},{"date":"2024-05-03","current":-5.763193,"twenty":-9.152685,"median":-5.137904,"eighty":-1.632864,"marketCap":509737106},{"date":"2024-05-10","current":-5.900173,"twenty":-9.152685,"median":-5.17612,"eighty":-1.651056,"marketCap":547341314},{"date":"2024-05-17","current":-6.802306,"twenty":-9.152685,"median":-5.23434,"eighty":-1.663576,"marketCap":631029499},{"date":"2024-05-24","current":-5.648207,"twenty":-9.152685,"median":-5.250196,"eighty":-1.680449,"marketCap":523967191},{"date":"2024-05-31","current":-5.365414,"twenty":-9.152685,"median":-5.252552,"eighty":-1.69118,"marketCap":497733380},{"date":"2024-06-07","current":-5.143766,"twenty":-9.152685,"median":-5.262603,"eighty":-1.719691,"marketCap":477171745},{"date":"2024-06-14","current":-5.05205,"twenty":-9.15651,"median":-5.263947,"eighty":-1.733603,"marketCap":468663482},{"date":"2024-06-21","current":-4.539966,"twenty":-9.160335,"median":-5.26529,"eighty":-1.749497,"marketCap":421159014},{"date":"2024-06-28","current":-4.880081,"twenty":-9.164959,"median":-5.282272,"eighty":-1.761776,"marketCap":452710489},{"date":"2024-07-05","current":-5.044407,"twenty":-9.164959,"median":-5.287002,"eighty":-1.782905,"marketCap":467954460},{"date":"2024-07-12","current":-5.869855,"twenty":-9.164959,"median":-5.307752,"eighty":-1.813296,"marketCap":544528826},{"date":"2024-07-15","current":-6.038002,"twenty":-9.164959,"median":-5.325968,"eighty":-1.814927,"marketCap":560127308},{"date":"2024-08-02","current":-4.654611,"twenty":-9.22331,"median":-5.382384,"eighty":-1.858355,"marketCap":431794343},{"date":"2024-08-09","current":-4.4375,"twenty":-9.22331,"median":-5.382384,"eighty":-1.898763,"marketCap":449722870},{"date":"2024-08-16","current":-4.375927,"twenty":-9.22331,"median":-5.382384,"eighty":-1.922746,"marketCap":443482734},{"date":"2024-08-23","current":-4.740588,"twenty":-9.22331,"median":-5.382384,"eighty":-1.94836,"marketCap":480439628},{"date":"2024-08-30","current":-4.635397,"twenty":-9.22331,"median":-5.382384,"eighty":-1.963276,"marketCap":469778986},{"date":"2024-09-06","current":-4.481118,"twenty":-9.22331,"median":-5.382384,"eighty":-1.992315,"marketCap":454143376},{"date":"2024-09-13","current":-4.97902,"twenty":-9.22331,"median":-5.382384,"eighty":-2.006297,"marketCap":504603752},{"date":"2024-09-20","current":-5.308617,"twenty":-9.22331,"median":-5.392613,"eighty":-2.04582,"marketCap":538007099},{"date":"2024-09-27","current":-4.775651,"twenty":-9.22331,"median":-5.402605,"eighty":-2.071356,"marketCap":483993176},{"date":"2024-10-04","current":-4.312813,"twenty":-9.22331,"median":-5.402605,"eighty":-2.098777,"marketCap":437086348},{"date":"2024-10-11","current":-4.221648,"twenty":-9.22331,"median":-5.402605,"eighty":-2.13584,"marketCap":427847125},{"date":"2024-10-18","current":-4.761626,"twenty":-9.22331,"median":-5.402605,"eighty":-2.165516,"marketCap":482571757},{"date":"2024-10-25","current":-4.744094,"twenty":-9.22331,"median":-5.402605,"eighty":-2.226131,"marketCap":480794983},{"date":"2024-10-31","current":-4.740588,"twenty":-9.22331,"median":-5.402605,"eighty":-2.244588,"marketCap":480439628},{"date":"2024-11-08","current":-5.231477,"twenty":-9.225312,"median":-5.405129,"eighty":-2.271833,"marketCap":530189294},{"date":"2024-11-15","current":-5.809106,"twenty":-9.225312,"median":-5.445898,"eighty":-2.292553,"marketCap":601358704},{"date":"2024-11-22","current":-5.774753,"twenty":-9.225312,"median":-5.463564,"eighty":-2.309931,"marketCap":597802473},{"date":"2024-11-29","current":-5.888119,"twenty":-9.225312,"median":-5.498958,"eighty":-2.31901,"marketCap":609538036},{"date":"2024-12-06","current":-6.279744,"twenty":-9.225312,"median":-5.534802,"eighty":-2.33289,"marketCap":650079072},{"date":"2024-12-13","current":-5.90186,"twenty":-9.225312,"median":-5.583452,"eighty":-2.353729,"marketCap":610960528},{"date":"2024-12-20","current":-5.620165,"twenty":-9.225312,"median":-5.617263,"eighty":-2.367082,"marketCap":581799432},{"date":"2024-12-27","current":-5.496493,"twenty":-9.225312,"median":-5.622268,"eighty":-2.3962,"marketCap":568997000},{"date":"2025-01-03","current":-4.885009,"twenty":-9.225312,"median":-5.622268,"eighty":-2.406198,"marketCap":505696083},{"date":"2025-01-10","current":-5.11861,"twenty":-9.227313,"median":-5.624371,"eighty":-2.432957,"marketCap":529878456},{"date":"2025-01-17","current":-4.610184,"twenty":-9.227313,"median":-5.624371,"eighty":-2.450298,"marketCap":477246233},{"date":"2025-01-24","current":-4.850655,"twenty":-9.227313,"median":-5.624371,"eighty":-2.462386,"marketCap":502139852},{"date":"2025-01-31","current":-4.809432,"twenty":-9.227313,"median":-5.624371,"eighty":-2.492163,"marketCap":497872375},{"date":"2025-02-07","current":-4.747596,"twenty":-9.227313,"median":-5.624371,"eighty":-2.545445,"marketCap":491471158},{"date":"2025-02-14","current":-4.280394,"twenty":-9.227313,"median":-5.624371,"eighty":-2.577061,"marketCap":443106413},{"date":"2025-02-21","current":-4.555219,"twenty":-9.227313,"median":-5.624371,"eighty":-2.609749,"marketCap":471556263},{"date":"2025-02-28","current":-4.886485,"twenty":-9.227313,"median":-5.624371,"eighty":-2.682852,"marketCap":464504340},{"date":"2025-03-07","current":-4.528833,"twenty":-9.229315,"median":-5.62647,"eighty":-2.751011,"marketCap":430506348},{"date":"2025-03-14","current":-4.212868,"twenty":-9.229315,"median":-5.62647,"eighty":-2.800801,"marketCap":400471021},{"date":"2025-03-21","current":-4.682765,"twenty":-9.229315,"median":-5.62647,"eighty":-2.864367,"marketCap":445138943},{"date":"2025-03-28","current":-4.51263,"twenty":-9.229315,"median":-5.62647,"eighty":-2.887636,"marketCap":428966075},{"date":"2025-04-04","current":-3.613344,"twenty":-9.229315,"median":-5.62647,"eighty":-2.950267,"marketCap":343480914},{"date":"2025-04-11","current":-3.370294,"twenty":-9.227313,"median":-5.624371,"eighty":-3.036633,"marketCap":320376817},{"date":"2025-04-17","current":-3.564734,"twenty":-9.227313,"median":-5.624371,"eighty":-3.077604,"marketCap":338860095},{"date":"2025-04-25","current":-4.188563,"twenty":-9.229315,"median":-5.62647,"eighty":-3.116395,"marketCap":398160611},{"date":"2025-05-02","current":-4.188563,"twenty":-9.229315,"median":-5.62647,"eighty":-3.213748,"marketCap":398160611},{"date":"2025-05-09","current":-4.698968,"twenty":-9.229315,"median":-5.62647,"eighty":-3.305959,"marketCap":446679216},{"date":"2025-05-16","current":-5.195017,"twenty":-9.229315,"median":-5.62647,"eighty":-3.335282,"marketCap":468798303},{"date":"2025-05-23","current":-5.186029,"twenty":-9.229315,"median":-5.62647,"eighty":-3.341904,"marketCap":467987234},{"date":"2025-05-30","current":-5.042222,"twenty":-9.229315,"median":-5.61173,"eighty":-3.341904,"marketCap":455010118},{"date":"2025-06-06","current":-4.907403,"twenty":-9.1665,"median":-5.562525,"eighty":-3.341904,"marketCap":442844072},{"date":"2025-06-13","current":-6.426361,"twenty":-9.1665,"median":-5.534802,"eighty":-3.341904,"marketCap":579914856},{"date":"2025-06-20","current":-6.093808,"twenty":-9.168041,"median":-5.530847,"eighty":-3.339066,"marketCap":549905276},{"date":"2025-06-27","current":-3.244638,"twenty":-9.078131,"median":-5.526011,"eighty":-3.334336,"marketCap":292796172},{"date":"2025-07-03","current":-4.278249,"twenty":-8.981846,"median":-5.496493,"eighty":-3.33323,"marketCap":386069191},{"date":"2025-07-11","current":-3.954684,"twenty":-8.930849,"median":-5.462896,"eighty":-3.33323,"marketCap":356870681},{"date":"2025-07-18","current":-3.640107,"twenty":-8.858572,"median":-5.407653,"eighty":-3.33323,"marketCap":328483240},{"date":"2025-07-25","current":-3.694034,"twenty":-8.833277,"median":-5.382384,"eighty":-3.33323,"marketCap":333349659},{"date":"2025-08-01","current":-3.316542,"twenty":-8.74252,"median":-5.347811,"eighty":-3.316542,"marketCap":299284730},{"date":"2025-08-08","current":-3.163747,"twenty":-8.648531,"median":-5.308617,"eighty":-3.29177,"marketCap":285496544},{"date":"2025-08-15","current":-3.701442,"twenty":-8.585874,"median":-5.28636,"eighty":-3.28059,"marketCap":324786691},{"date":"2025-08-22","current":-3.550568,"twenty":-8.510418,"median":-5.26529,"eighty":-3.28059,"marketCap":311548103},{"date":"2025-08-29","current":-3.731616,"twenty":-8.456341,"median":-5.254536,"eighty":-3.28059,"marketCap":327434408},{"date":"2025-09-05","current":-3.580742,"twenty":-8.309672,"median":-5.247127,"eighty":-3.279988,"marketCap":314195820},{"date":"2025-09-12","current":-3.7115,"twenty":-8.255139,"median":-5.235483,"eighty":-3.28059,"marketCap":325669263},{"date":"2025-09-19","current":-3.892549,"twenty":-8.21689,"median":-5.210439,"eighty":-3.28059,"marketCap":341555569},{"date":"2025-09-26","current":-3.94284,"twenty":-8.111531,"median":-5.187316,"eighty":-3.28059,"marketCap":345968431},{"date":"2025-10-03","current":-3.952898,"twenty":-8.025162,"median":-5.164674,"eighty":-3.28059,"marketCap":346851004},{"date":"2025-10-10","current":-4.023306,"twenty":-7.942782,"median":-5.143766,"eighty":-3.28059,"marketCap":353029012},{"date":"2025-10-17","current":-3.912665,"twenty":-7.862815,"median":-5.126287,"eighty":-3.28059,"marketCap":343320714},{"date":"2025-10-24","current":-3.983073,"twenty":-7.799198,"median":-5.099688,"eighty":-3.28059,"marketCap":349498721},{"date":"2025-10-31","current":-4.093714,"twenty":-7.710945,"median":-5.053881,"eighty":-3.28059,"marketCap":359207019},{"date":"2025-11-07","current":-4.143879,"twenty":-7.648555,"median":-5.044407,"eighty":-3.28059,"marketCap":347733576},{"date":"2025-11-14","current":-5.044056,"twenty":-7.566386,"median":-5.044056,"eighty":-3.28059,"marketCap":423271942},{"date":"2025-11-21","current":-5.55813,"twenty":-7.566386,"median":-5.044056,"eighty":-3.28059,"marketCap":466410460},{"date":"2025-11-28","current":-6.540439,"twenty":-7.511606,"median":-5.044056,"eighty":-3.28059,"marketCap":548840945},{"date":"2025-12-05","current":-6.602611,"twenty":-7.446462,"median":-5.044056,"eighty":-3.28059,"marketCap":554058064},{"date":"2025-12-12","current":-6.639913,"twenty":-7.388353,"median":-5.044056,"eighty":-3.28059,"marketCap":557188335},{"date":"2025-12-19","current":-6.279319,"twenty":-7.280593,"median":-5.044056,"eighty":-3.28059,"marketCap":526929044},{"date":"2025-12-26","current":-4.948849,"twenty":-7.205023,"median":-5.042222,"eighty":-3.28059,"marketCap":415282692},{"date":"2026-01-02","current":-4.48878,"twenty":-7.158501,"median":-5.023558,"eighty":-3.28059,"marketCap":376676009},{"date":"2026-01-09","current":-5.307185,"twenty":-7.114457,"median":-5.022421,"eighty":-3.28059,"marketCap":445352424},{"date":"2026-01-16","current":-5.51531,"twenty":-7.007306,"median":-5.022421,"eighty":-3.28059,"marketCap":462817225},{"date":"2026-01-23","current":-6.9982,"twenty":-6.984046,"median":-5.022421,"eighty":-3.28059,"marketCap":587253932},{"date":"2026-01-30","current":-6.633981,"twenty":-6.949155,"median":-5.022421,"eighty":-3.28059,"marketCap":556690530},{"date":"2026-02-06","current":-7.342419,"twenty":-6.949155,"median":-5.022421,"eighty":-3.28059,"marketCap":616139063},{"date":"2026-02-13","current":-6.820092,"twenty":-6.936424,"median":-5.022421,"eighty":-3.28059,"marketCap":572308032},{"date":"2026-02-20","current":-6.700703,"twenty":-6.909634,"median":-5.022421,"eighty":-3.28059,"marketCap":562289511},{"date":"2026-02-27","current":-6.655932,"twenty":-6.86795,"median":-5.022421,"eighty":-3.28059,"marketCap":558532565},{"date":"2026-03-06","current":-4.982649,"twenty":-6.839679,"median":-5.015258,"eighty":-3.28059,"marketCap":438936467},{"date":"2026-03-13","current":-5.315427,"twenty":-6.799476,"median":-5.015258,"eighty":-3.28059,"marketCap":468251938},{"date":"2026-03-20","current":-5.051022,"twenty":-6.771856,"median":-5.015258,"eighty":-3.28059,"marketCap":444959705},{"date":"2026-03-27","current":-4.726103,"twenty":-6.758392,"median":-4.993045,"eighty":-3.28059,"marketCap":416336566},{"date":"2026-04-02","current":-4.60795,"twenty":-6.742082,"median":-4.985041,"eighty":-3.28059,"marketCap":405928152},{"date":"2026-04-10","current":-4.991946,"twenty":-6.724631,"median":-4.97902,"eighty":-3.28059,"marketCap":439755498},{"date":"2026-04-17","current":-5.183944,"twenty":-6.698372,"median":-4.968056,"eighty":-3.28059,"marketCap":456669171},{"date":"2026-04-24","current":-4.268262,"twenty":-6.667857,"median":-4.968056,"eighty":-3.28059,"marketCap":376003961},{"date":"2026-05-01","current":-5.731651,"twenty":-6.635138,"median":-4.968056,"eighty":-3.28059,"marketCap":504918330},{"date":"2026-05-08","current":-6.701623,"twenty":-6.633981,"median":-4.968056,"eighty":-3.28059,"marketCap":590366048},{"date":"2026-05-15","current":-6.23472,"twenty":-6.623275,"median":-4.968056,"eighty":-3.28059,"marketCap":567864529},{"date":"2026-05-22","current":-6.256072,"twenty":-6.576982,"median":-4.968056,"eighty":-3.28059,"marketCap":569809271},{"date":"2026-05-29","current":-6.554997,"twenty":-6.563229,"median":-4.964679,"eighty":-3.279988,"marketCap":597035652},{"date":"2026-06-05","current":-6.23472,"twenty":-6.540827,"median":-4.968056,"eighty":-3.28059,"marketCap":567864529},{"date":"2026-06-12","current":-5.530111,"twenty":-6.520195,"median":-4.968056,"eighty":-3.28059,"marketCap":503688058},{"date":"2026-06-18","current":-5.63687,"twenty":-6.512293,"median":-4.968056,"eighty":-3.28059,"marketCap":513411766},{"date":"2026-06-26","current":-6.127961,"twenty":-6.456353,"median":-4.964679,"eighty":-3.279988,"marketCap":558140821},{"date":"2026-07-02","current":-6.725811,"twenty":-6.456353,"median":-4.964679,"eighty":-3.279988,"marketCap":612593585},{"date":"2026-07-10","current":-6.661756,"twenty":-6.485149,"median":-4.964679,"eighty":-3.279988,"marketCap":606759360},{"date":"2026-07-17","current":-6.085257,"twenty":-6.489568,"median":-4.964679,"eighty":-3.279988,"marketCap":554251338},{"date":"2026-07-24","current":-6.063906,"twenty":-6.489568,"median":-4.964679,"eighty":-3.279988,"marketCap":552306597},{"date":"2026-07-31","current":-6.362831,"twenty":-6.489911,"median":-4.961303,"eighty":-3.279387,"marketCap":579532978},{"date":"2026-08-07","current":-6.426886,"twenty":-6.486168,"median":-4.961303,"eighty":-3.279387,"marketCap":585367203},{"date":"2026-08-14","current":-6.105176,"twenty":-6.475406,"median":-4.961303,"eighty":-3.279387,"marketCap":560210978},{"date":"2026-08-21","current":-6.253566,"twenty":-6.456483,"median":-4.961303,"eighty":-3.279387,"marketCap":573827217},{"date":"2026-08-25","current":-6.592742,"twenty":-6.456483,"median":-4.961303,"eighty":-3.279387,"marketCap":604950050}],"updateTime":1787786573734},"$inf$@#url:\"https://stock-news.skytigris.cn/v3/notice/important/events/list\",params:#symbol:\"ALT\",pageSize:20,pageCount:1,market:\"us\",,,undefined,":[{"items":[{"cdn_pdf":false,"hasAttachments":true,"id":"21607507","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000052-ALT","pdf_url":"","pub_time":1786507200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"ALT","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000052/0001326190-26-000052-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000052/alt-20260630x10q.htm","primary":true,"translateUrl":"","linkName":"alt-20260630x10q.htm","type":"10-Q","id":"NTFILEdkasMRbWz8mQnouz","market":"us","size":1441858},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000052/alt-20260630xex31d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260630xex31d1.htm","type":"EX-31.1","id":"NTFILE3uZGLDx2Z5ejaqc7","market":"us","size":11854},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000052/alt-20260630xex31d2.htm","primary":false,"translateUrl":"","linkName":"alt-20260630xex31d2.htm","type":"EX-31.2","id":"NTFILE5np2u9WJCFut6yvL","market":"us","size":11679},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000052/alt-20260630xex32d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260630xex32d1.htm","type":"EX-32.1","id":"NTFILE5Fe142PtxXstV8Su","market":"us","size":6695},{"description":"EX-32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000052/alt-20260630xex32d2.htm","primary":false,"translateUrl":"","linkName":"alt-20260630xex32d2.htm","type":"EX-32.2","id":"NTFILEHDn5MzU46kxH2mhd","market":"us","size":6801},{"description":"GRAPHIC","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000052/alt-20260630x10q002.jpg","primary":false,"translateUrl":"","linkName":"alt-20260630x10q002.jpg","type":"GRAPHIC","id":"NTFILEEtmyZHA3xVkrwkFo","market":"us","size":16725}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2026-08-12 12:00","pubTimestamp":1786507200,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21606311","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000049-ALT","pdf_url":"","pub_time":1786507200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000049/0001326190-26-000049-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000049/alt-20260812xex99d1.htm","primary":true,"translateUrl":"","linkName":"alt-20260812xex99d1.htm","type":"EX-99.1","id":"NTFILE5Bp7GSbcB2SThXPY","market":"us","size":177390},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000049/alt-20260812x8k.htm","primary":false,"translateUrl":"","linkName":"alt-20260812x8k.htm","type":"8-K","id":"NTFILEBg1fHQpPgzAFS33W","market":"us","size":43457},{"description":"GRAPHIC","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000049/alt-20260812xex99d1002.jpg","primary":false,"translateUrl":"","linkName":"alt-20260812xex99d1002.jpg","type":"GRAPHIC","id":"NTFILEYkvmg2SbhSiXXByT","market":"us","size":7092}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-08-12 12:00","pubTimestamp":1786507200,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21543624","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000044-ALT","pdf_url":"","pub_time":1785236680000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/0001326190-26-000044-index.html","us_notice_code":"Form 8-K","us_title_en":"Item 7.01: Regulation FD Disclosure;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000044/alt-20260728xex99d1.htm","primary":true,"translateUrl":"","linkName":"alt-20260728xex99d1.htm","type":"EX-99.1","id":"NTFILEpPMUNjFQ6AeNj7HX","market":"us","size":48466},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000044/alt-20260728x8k.htm","primary":false,"translateUrl":"","linkName":"alt-20260728x8k.htm","type":"8-K","id":"NTFILE2QfeYNtNTS3FkB8d","market":"us","size":44660}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-07-28 19:04","pubTimestamp":1785236680,"title_zh":"Form 8-K - Current report","summary_en":"Item 7.01: Regulation FD Disclosure;\nItem 8.01: Other Events;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21403474","market":"us","labels":[],"media":"sec.gov","original_id":"AN110465926074575-ALT","pdf_url":"","pub_time":1781640335000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/0001104659-26-074575-index.html","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"FORM 8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465926074575/tm2618087d1_8k.htm","primary":true,"translateUrl":"","linkName":"tm2618087d1_8k.htm","type":"8-K","id":"NTFILEE5GJHyKCRRF1WLeh","market":"us","size":29097}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-06-17 04:05","pubTimestamp":1781640335,"title_zh":"Form 8-K - Current report","summary_en":"Item 8.01: Other Events","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21269953","market":"us","labels":[],"media":"sec.gov","original_id":"AN121465926006495-ALT","pdf_url":"","pub_time":1778817600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","symbol":"ALT","title":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000121465926006495/0001214659-26-006495-index.htm","us_notice_code":"Form SCHEDULE 13G/A","us_title_en":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1232621/000121465926006495/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G/A","id":"NTFILEHvfdiXvKQkZJARb1","market":"us","size":0},{"description":"EXHIBIT 99.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1232621/000121465926006495/ex99_1.htm","primary":false,"translateUrl":"","linkName":"ex99_1.htm","type":"EX-99.1","id":"NTFILEGDSFnri8HS5C6ft2","market":"us","size":13371}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-05-15 12:00","pubTimestamp":1778817600,"title_zh":"Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21253759","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000041-ALT","pdf_url":"","pub_time":1778644800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form S-8 - Securities to be offered to employees in employee benefit plans","symbol":"ALT","title":"Form S-8 - Securities to be offered to employees in employee benefit plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000041/0001326190-26-000041-index.htm","us_notice_code":"Form S-8","us_title_en":"Form S-8 - Securities to be offered to employees in employee benefit plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"S-8","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000041/alt-20260513xs8.htm","primary":true,"translateUrl":"","linkName":"alt-20260513xs8.htm","type":"S-8","id":"NTFILEC7suEfniisWmMzH6","market":"us","size":70898},{"description":"EX-5.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000041/alt-20260513xex5d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260513xex5d1.htm","type":"EX-5.1","id":"NTFILEGmzePusatCkn4jNN","market":"us","size":9215},{"description":"EX-23.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000041/alt-20260513xex23d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260513xex23d1.htm","type":"EX-23.1","id":"NTFILEBsdfr6CLZWRyfs8Q","market":"us","size":2487},{"description":"EX-FILING FEES","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000041/alt-20260513xexfees.htm","primary":false,"translateUrl":"","linkName":"alt-20260513xexfees.htm","type":"EX-FILING FEES","id":"NTFILEHU2VfP9h3cPB7Xxu","market":"us","size":16573},{"description":"GRAPHIC","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000041/alt-20260513xex5d1001.jpg","primary":false,"translateUrl":"","linkName":"alt-20260513xex5d1001.jpg","type":"GRAPHIC","id":"NTFILE9THiXPHvNkbqtuBS","market":"us","size":4765}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2026-05-13 12:00","pubTimestamp":1778644800,"title_zh":"Form S-8 - Securities to be offered to employees in employee benefit plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21253625","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000040-ALT","pdf_url":"","pub_time":1778644800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","symbol":"ALT","title":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","titleType":"Quarterly Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000040/0001326190-26-000040-index.htm","us_notice_code":"Form 10-Q","us_title_en":"Form 10-Q - Quarterly report [Sections 13 or 15(d)]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-Q","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000040/alt-20260331x10q.htm","primary":true,"translateUrl":"","linkName":"alt-20260331x10q.htm","type":"10-Q","id":"NTFILEDnCrtXyxD8MgvMnY","market":"us","size":1098080},{"description":"EX-31.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000040/alt-20260331xex31d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260331xex31d1.htm","type":"EX-31.1","id":"NTFILEGZFuWfo9pAfrH1Cu","market":"us","size":11857},{"description":"EX-31.2","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000040/alt-20260331xex31d2.htm","primary":false,"translateUrl":"","linkName":"alt-20260331xex31d2.htm","type":"EX-31.2","id":"NTFILE7zQtadMVKuK3VHy9","market":"us","size":11691},{"description":"EX-32.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000040/alt-20260331xex32d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260331xex32d1.htm","type":"EX-32.1","id":"NTFILE2XNYQ1h1hdH7DJxE","market":"us","size":6698},{"description":"EX-32.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000040/alt-20260331xex32d2.htm","primary":false,"translateUrl":"","linkName":"alt-20260331xex32d2.htm","type":"EX-32.2","id":"NTFILEGj9asqCdxQnbFKCi","market":"us","size":6819},{"description":"GRAPHIC","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000040/alt-20260331x10q002.jpg","primary":false,"translateUrl":"","linkName":"alt-20260331x10q002.jpg","type":"GRAPHIC","id":"NTFILE82bP5yppwXpiKTrk","market":"us","size":16725}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Quarterly Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Quarterly Report","pubTime":"2026-05-13 12:00","pubTimestamp":1778644800,"title_zh":"Form 10-Q - Quarterly report [Sections 13 or 15(d","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21251952","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000037-ALT","pdf_url":"","pub_time":1778644800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000037/0001326190-26-000037-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000037/alt-20260513xex99d1.htm","primary":true,"translateUrl":"","linkName":"alt-20260513xex99d1.htm","type":"EX-99.1","id":"NTFILE8o1xXMcqKgk8W8Dr","market":"us","size":143998},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000037/alt-20260513x8k.htm","primary":false,"translateUrl":"","linkName":"alt-20260513x8k.htm","type":"8-K","id":"NTFILEJ2Ht1Xe4T1PmAw6U","market":"us","size":43440},{"description":"GRAPHIC","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000037/alt-20260513xex99d1002.jpg","primary":false,"translateUrl":"","linkName":"alt-20260513xex99d1002.jpg","type":"GRAPHIC","id":"NTFILECNL4CEFs2neaoCHb","market":"us","size":7092}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-05-13 12:00","pubTimestamp":1778644800,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21246014","market":"us","labels":[],"media":"sec.gov","original_id":"AN9375126000201-ALT","pdf_url":"","pub_time":1778558400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","symbol":"ALT","title":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000009375126000201/0000093751-26-000201-index.htm","us_notice_code":"Form SCHEDULE 13G","us_title_en":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/93751/000009375126000201/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G","id":"NTFILEB1soVC8YxZ4iyWiC","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-05-12 12:00","pubTimestamp":1778558400,"title_zh":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21202162","market":"us","labels":[],"media":"sec.gov","original_id":"AN119312526201587-ALT","pdf_url":"","pub_time":1777608000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","symbol":"ALT","title":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000119312526201587/0001193125-26-201587-index.htm","us_notice_code":"Form SCHEDULE 13G","us_title_en":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000119312526201587/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G","id":"NTFILECx9LeKtVyBTHTVcs","market":"us","size":0},{"description":"EX-99.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000119312526201587/ck0000000000-ex99_1.pdf","primary":false,"translateUrl":"","linkName":"ck0000000000-ex99_1.pdf","type":"EX-99.1","id":"NTFILEG9WiC2ogEY8Fwmkc","market":"us","size":79286}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-05-01 12:00","pubTimestamp":1777608000,"title_zh":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21202160","market":"us","labels":[],"media":"sec.gov","original_id":"AN90514826002008-ALT","pdf_url":"","pub_time":1777608000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","symbol":"ALT","title":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000090514826002008/0000905148-26-002008-index.htm","us_notice_code":"Form SCHEDULE 13G","us_title_en":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1103804/000090514826002008/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G","id":"NTFILE5T3qA5DWuju6HPDr","market":"us","size":0},{"description":"JFA","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1103804/000090514826002008/jfa.htm","primary":false,"translateUrl":"","linkName":"jfa.htm","type":"EX-99","id":"NTFILEHEKkojpsz3pVVuie","market":"us","size":6936}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-05-01 12:00","pubTimestamp":1777608000,"title_zh":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21201336","market":"us","labels":[],"media":"sec.gov","original_id":"AN134682426000125-ALT","pdf_url":"","pub_time":1777608000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","symbol":"ALT","title":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000134682426000125/0001346824-26-000125-index.htm","us_notice_code":"Form SCHEDULE 13G","us_title_en":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000134682426000125/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G","id":"NTFILE95rRCGa38UEmaXue","market":"us","size":0},{"description":"JOINT FILING AGREEMENT","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000134682426000125/ex-99-05012026_080559.htm","primary":false,"translateUrl":"","linkName":"ex-99-05012026_080559.htm","type":"EX-99.1","id":"NTFILE2sug53Hb9BBAr6KW","market":"us","size":4555}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-05-01 12:00","pubTimestamp":1777608000,"title_zh":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21201238","market":"us","labels":[],"media":"sec.gov","original_id":"AN117266126001579-ALT","pdf_url":"","pub_time":1777521600000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","symbol":"ALT","title":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","titleType":"Beneficial Ownership Change","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000117266126001579/0001172661-26-001579-index.htm","us_notice_code":"Form SCHEDULE 13G","us_title_en":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000117266126001579/xslSCHEDULE_13G_X02/primary_doc.xml","primary":true,"translateUrl":"","linkName":"primary_doc.html","type":"SCHEDULE 13G","id":"NTFILE8TbNR4U55V3T2nWN","market":"us","size":0}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Beneficial Ownership Change","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Beneficial Ownership Change","pubTime":"2026-04-30 12:00","pubTimestamp":1777521600,"title_zh":"Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21104364","market":"us","labels":[],"media":"sec.gov","original_id":"AN110465926048552-ALT","pdf_url":"","pub_time":1777003200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000110465926048552/0001104659-26-048552-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EXHIBIT 1.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465926048552/tm2612493d2_ex1-1.htm","primary":true,"translateUrl":"","linkName":"tm2612493d2_ex1-1.htm","type":"EX-1.1","id":"NTFILE8uRtA3uLVsMyWozH","market":"us","size":285815},{"description":"FORM 8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465926048552/tm2612493d2_8k.htm","primary":false,"translateUrl":"","linkName":"tm2612493d2_8k.htm","type":"8-K","id":"NTFILE7uVpHW7xzfJvoDQk","market":"us","size":41049},{"description":"EXHIBIT 4.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465926048552/tm2612493d2_ex4-1.htm","primary":false,"translateUrl":"","linkName":"tm2612493d2_ex4-1.htm","type":"EX-4.1","id":"NTFILEBTKkCzGBXARFq28y","market":"us","size":107879},{"description":"EXHIBIT 4.2","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465926048552/tm2612493d2_ex4-2.htm","primary":false,"translateUrl":"","linkName":"tm2612493d2_ex4-2.htm","type":"EX-4.2","id":"NTFILEtQeqCAptA3gHCHqe","market":"us","size":93661},{"description":"EXHIBIT 5.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465926048552/tm2612493d2_ex5-1.htm","primary":false,"translateUrl":"","linkName":"tm2612493d2_ex5-1.htm","type":"EX-5.1","id":"NTFILEjs1j9tckcvUK5sEQ","market":"us","size":12228},{"description":"GRAPHIC","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000110465926048552/tm2612493d2_ex5-1img001.jpg","primary":false,"translateUrl":"","linkName":"tm2612493d2_ex5-1img001.jpg","type":"GRAPHIC","id":"NTFILEB7SXqJfwx81rfuJU","market":"us","size":3575}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-04-24 12:00","pubTimestamp":1777003200,"title_zh":"Form 8-K - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"21016000","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000027-ALT","pdf_url":"","pub_time":1776312000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000027/0001326190-26-000027-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 5.03: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year;\nItem 5.07: Submission of Matters to a Vote of Security Holders;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-3.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000027/alt-20260416xex3d1.htm","primary":true,"translateUrl":"","linkName":"alt-20260416xex3d1.htm","type":"EX-3.1","id":"NTFILE49vv6EU2AXMPKUCh","market":"us","size":7551},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000027/alt-20260416x8k.htm","primary":false,"translateUrl":"","linkName":"alt-20260416x8k.htm","type":"8-K","id":"NTFILE7DfFAdac9q8roETq","market":"us","size":99496}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-04-16 12:00","pubTimestamp":1776312000,"title_zh":"Form 8-K - Current report","summary_en":"Item 5.03: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year;\nItem 5.07: Submission of Matters to a Vote of Security Holders;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20808122","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000018-ALT","pdf_url":"","pub_time":1772773200000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","symbol":"ALT","title":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","titleType":"Annual Report","type":"usFinancials","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/0001326190-26-000018-index.htm","us_notice_code":"Form 10-K","us_title_en":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"10-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231x10k.htm","primary":true,"translateUrl":"","linkName":"alt-20251231x10k.htm","type":"10-K","id":"NTFILE3iiN1uDoo2MyaefP","market":"us","size":2155539},{"description":"EX-4.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231xex4d1.htm","primary":false,"translateUrl":"","linkName":"alt-20251231xex4d1.htm","type":"EX-4.1","id":"NTFILEFGRnkhZVayNBnHS7","market":"us","size":44014},{"description":"EX-10.14","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231xex10d14.htm","primary":false,"translateUrl":"","linkName":"alt-20251231xex10d14.htm","type":"EX-10.14","id":"NTFILEVwUMCTZj5Ht3uoGJ","market":"us","size":123029},{"description":"EX-21","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231xex21.htm","primary":false,"translateUrl":"","linkName":"alt-20251231xex21.htm","type":"EX-21","id":"NTFILEEd8X8jwuDXKpkCzS","market":"us","size":6975},{"description":"EX-23.1","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231xex23d1.htm","primary":false,"translateUrl":"","linkName":"alt-20251231xex23d1.htm","type":"EX-23.1","id":"NTFILEEyefJ5tisHArsr4c","market":"us","size":14527},{"description":"EX-31.1","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231xex31d1.htm","primary":false,"translateUrl":"","linkName":"alt-20251231xex31d1.htm","type":"EX-31.1","id":"NTFILE5duFfgM8p2SFxoXe","market":"us","size":13122},{"description":"EX-31.2","seq":7,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231xex31d2.htm","primary":false,"translateUrl":"","linkName":"alt-20251231xex31d2.htm","type":"EX-31.2","id":"NTFILED2M93FQm7KwCVHMV","market":"us","size":13009},{"description":"EX-32.1","seq":8,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231xex32d1.htm","primary":false,"translateUrl":"","linkName":"alt-20251231xex32d1.htm","type":"EX-32.1","id":"NTFILE4siziJambj6wpSRR","market":"us","size":7708},{"description":"EX-32.2","seq":9,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231xex32d2.htm","primary":false,"translateUrl":"","linkName":"alt-20251231xex32d2.htm","type":"EX-32.2","id":"NTFILEszvkcQQ4s55iFsFq","market":"us","size":7729},{"description":"GRAPHIC","seq":10,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231x10k002.jpg","primary":false,"translateUrl":"","linkName":"alt-20251231x10k002.jpg","type":"GRAPHIC","id":"NTFILEDGwFustXrsfM8CAW","market":"us","size":6731},{"description":"GRAPHIC","seq":11,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231x10k004.jpg","primary":false,"translateUrl":"","linkName":"alt-20251231x10k004.jpg","type":"GRAPHIC","id":"NTFILE7gMa6gBTbFT4kBZe","market":"us","size":61829},{"description":"GRAPHIC","seq":12,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231x10k005.jpg","primary":false,"translateUrl":"","linkName":"alt-20251231x10k005.jpg","type":"GRAPHIC","id":"NTFILEADEW5M11L87LnMJQ","market":"us","size":42393},{"description":"GRAPHIC","seq":13,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231x10k006.jpg","primary":false,"translateUrl":"","linkName":"alt-20251231x10k006.jpg","type":"GRAPHIC","id":"NTFILE29FVp71z7qP6CJqP","market":"us","size":68069},{"description":"GRAPHIC","seq":14,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231x10k007.jpg","primary":false,"translateUrl":"","linkName":"alt-20251231x10k007.jpg","type":"GRAPHIC","id":"NTFILEEVjDdek56NfQszNN","market":"us","size":60468},{"description":"GRAPHIC","seq":15,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000018/alt-20251231x10k008.jpg","primary":false,"translateUrl":"","linkName":"alt-20251231x10k008.jpg","type":"GRAPHIC","id":"NTFILEJE27P9XaKbxkud5b","market":"us","size":18337}],"type_name":"Financial Report","type_name_en":"Financial Report","titleTypeEn":"Annual Report","us_type":"财务报告","us_type_zh":"财务报告","earn_infos":[],"event_type":"important_notice","event_name":"Annual Report","pubTime":"2026-03-06 13:00","pubTimestamp":1772773200,"title_zh":"Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20803082","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000013-ALT","pdf_url":"","pub_time":1772686800000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000013/0001326190-26-000013-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-99.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000013/alt-20260305xex99d1.htm","primary":true,"translateUrl":"","linkName":"alt-20260305xex99d1.htm","type":"EX-99.1","id":"NTFILEF7aHquuvHzVQCySb","market":"us","size":180225},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000013/alt-20260305x8k.htm","primary":false,"translateUrl":"","linkName":"alt-20260305x8k.htm","type":"8-K","id":"NTFILEH2MSH7F4e41N6zPW","market":"us","size":43416},{"description":"GRAPHIC","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000013/alt-20260305xex99d1002.jpg","primary":false,"translateUrl":"","linkName":"alt-20260305xex99d1002.jpg","type":"GRAPHIC","id":"NTFILE4Q7ndVDf9evVT3Xe","market":"us","size":7092}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-03-05 13:00","pubTimestamp":1772686800,"title_zh":"Form 8-K - Current report","summary_en":"Item 2.02: Results of Operations and Financial Condition;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20710131","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000011-ALT","pdf_url":"","pub_time":1770354000000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form S-8 - Securities to be offered to employees in employee benefit plans","symbol":"ALT","title":"Form S-8 - Securities to be offered to employees in employee benefit plans","titleType":"Employee Stock Ownership","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000011/0001326190-26-000011-index.htm","us_notice_code":"Form S-8","us_title_en":"Form S-8 - Securities to be offered to employees in employee benefit plans","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"S-8","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000011/alt-20260206xs8.htm","primary":true,"translateUrl":"","linkName":"alt-20260206xs8.htm","type":"S-8","id":"NTFILEBQ2ee5C6q77fYZwm","market":"us","size":75915},{"description":"EX-5.1","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000011/alt-20260206xex5d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260206xex5d1.htm","type":"EX-5.1","id":"NTFILEGyAw6bw3BRgLsspW","market":"us","size":9215},{"description":"EX-23.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000011/alt-20260206xex23d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260206xex23d1.htm","type":"EX-23.1","id":"NTFILEGTL7jXUGTzv3MsGk","market":"us","size":2487},{"description":"EX-FILING FEES","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000011/alt-20260206xexfees.htm","primary":false,"translateUrl":"","linkName":"alt-20260206xexfees.htm","type":"EX-FILING FEES","id":"NTFILE5zdUmuSPnQY34Q1o","market":"us","size":17258},{"description":"GRAPHIC","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000011/alt-20260206xex5d1001.jpg","primary":false,"translateUrl":"","linkName":"alt-20260206xex5d1001.jpg","type":"GRAPHIC","id":"NTFILE5KwyVFZp7fLR7wox","market":"us","size":4765}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Employee Stock Ownership","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Employee Stock Ownership","pubTime":"2026-02-06 13:00","pubTimestamp":1770354000,"title_zh":"Form S-8 - Securities to be offered to employees in employee benefit plans","summary_en":"","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20696469","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000008-ALT","pdf_url":"","pub_time":1770152732000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/0001326190-26-000008-index.html","us_notice_code":"Form 8-K","us_title_en":"Item 8.01: Other Events","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"8-K","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000008/alt-20260202x8k.htm","primary":true,"translateUrl":"","linkName":"alt-20260202x8k.htm","type":"8-K","id":"NTFILEEUccgfXgEF57Q6Sm","market":"us","size":40731}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-02-04 05:05","pubTimestamp":1770152732,"title_zh":"Form 8-K - Current report","summary_en":"Item 8.01: Other Events","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0},{"cdn_pdf":false,"hasAttachments":true,"id":"20672238","market":"us","labels":[],"media":"sec.gov","original_id":"AN132619026000006-ALT","pdf_url":"","pub_time":1769576400000,"showTitleType":true,"size":0,"source":"sec_us","summary":"Form 8-K - Current report","symbol":"ALT","title":"Form 8-K - Current report","titleType":"Major Issues Report","type":"usAnnouncement","url":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/0001326190-26-000006-index.htm","us_notice_code":"Form 8-K","us_title_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 9.01: Financial Statements and Exhibits","is_important":0,"hasEarnInfos":false,"gpt_zh_title":"","gpt_en_title":"","attachments":[{"description":"EX-4.1","seq":1,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127xex4d1.htm","primary":true,"translateUrl":"","linkName":"alt-20260127xex4d1.htm","type":"EX-4.1","id":"NTFILEAQk3Ui1KYSyXyz8t","market":"us","size":115261},{"description":"8-K","seq":2,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127x8k.htm","primary":false,"translateUrl":"","linkName":"alt-20260127x8k.htm","type":"8-K","id":"NTFILEErrkpdqx7uAy562C","market":"us","size":55539},{"description":"EX-5.1","seq":3,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127xex5d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260127xex5d1.htm","type":"EX-5.1","id":"NTFILE997883VcjWEYhfVe","market":"us","size":18757},{"description":"EX-10.1","seq":4,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127xex10d1.htm","primary":false,"translateUrl":"","linkName":"alt-20260127xex10d1.htm","type":"EX-10.1","id":"NTFILE4fCRWTiqsvicHcoR","market":"us","size":257080},{"description":"EX-10.2","seq":5,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127xex10d2.htm","primary":false,"translateUrl":"","linkName":"alt-20260127xex10d2.htm","type":"EX-10.2","id":"NTFILEHRokYziPYVgoM26x","market":"us","size":81762},{"description":"GRAPHIC","seq":6,"linkUrl":"https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127xex5d1001.jpg","primary":false,"translateUrl":"","linkName":"alt-20260127xex5d1001.jpg","type":"GRAPHIC","id":"NTFILEAQ1cHDwnnvtryavH","market":"us","size":5832}],"type_name":"Transaction Related","type_name_en":"Transaction Related","titleTypeEn":"Major Issues Report","us_type":"交易披露","us_type_zh":"交易披露","earn_infos":[],"event_type":"important_notice","event_name":"Major Issues Report","pubTime":"2026-01-28 13:00","pubTimestamp":1769576400,"title_zh":"Form 8-K - Current report","summary_en":"Item 1.01: Entry into a Material Definitive Agreement;\nItem 9.01: Financial Statements and Exhibits","summary_zh":"","notice_type":"","filling_tag":"","gpt_icon":0}],"pageSize":20,"totalPage":14,"pageCount":1,"totalSize":264,"code":"91000000","status":"200"}]}}