XOOMAR

AST SpaceMobile (ASTS)

AST SpaceMobile on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as communications services, nec.

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65.9M

Short interest

settlement 2026-10-15

3.2

Days to cover

-2.9 days vs prior

50.9%

Short share of volume

2026-10-28

31,793

Fails to deliver

settlement 2026-09-29

Mon 9 Nov

Next earnings

estimated date

-$2.4M

Insider flow, 90 days

3 buys, 2 sells

As of 2026-10-28.

Short interest

FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSON

As of 15 October 2026, short interest in ASTS is 65,868,038 shares, up 606,920 shares over the last month. Over the last 48 readings it ranged from 32,854,600 shares (15 January 2025) to 65,868,038 shares (15 October 2026). The latest reading sits at the top of that range. At the reported average volume of 20.7M shares a day that is 3.2 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-10-1565,868,038+1.6%20,728,4413.18
2026-09-3064,828,174-0.7%10,617,2626.11
2026-09-1565,261,118+1.8%9,420,7386.93
2026-08-3164,140,398+11.6%8,850,6427.25
2026-08-1457,475,212+1.1%12,566,1444.57
2026-07-3156,847,259-4.2%17,231,2923.30
2026-07-1559,349,055-8.3%12,320,9664.82
2026-06-3064,715,042+3.6%25,019,0252.59
2026-06-1562,487,152+14.1%23,923,7012.61
2026-05-2954,759,454+4.5%31,042,3351.76
2026-05-1552,399,829-3.0%21,770,5202.41
2026-04-3053,994,117+11.0%18,243,2422.96
2026-04-1548,628,411+5.2%14,705,6563.31
2026-03-3146,229,296+0.9%12,789,2493.61
2026-03-1345,801,399+9.4%13,443,9483.41
2026-02-2741,854,739-2.7%10,136,4844.13
2026-02-1343,017,737+5.3%15,676,4892.74
2026-01-3040,847,036+3.4%17,980,3812.27
2026-01-1539,499,407+3.8%17,313,2892.28
2025-12-3138,047,701-0.2%16,218,0552.35
2025-12-1538,123,638+4.1%13,758,7172.77
2025-11-2836,624,089-5.2%9,532,3913.84
2025-11-1438,631,390+2.6%9,238,0234.18
2025-10-3137,658,865+1.5%12,560,2083.00
2025-10-1537,100,990-12.5%20,592,0401.80
2025-09-3042,398,759+1.5%12,220,8683.47
2025-09-1541,767,317+5.5%11,113,8883.76
2025-08-2939,584,706-5.7%7,040,7185.62
2025-08-1541,987,832+1.7%9,617,7884.37
2025-07-3141,303,612-0.5%11,194,1553.69
2025-07-1541,491,995-7.9%9,736,1814.26
2025-06-3045,066,091-3.6%19,928,0682.26
2025-06-1346,732,671+1.1%19,521,5162.39
2025-05-3046,240,749+5.6%11,080,3244.17
2025-05-1543,775,117+3.0%11,103,1123.94
2025-04-3042,502,426-2.0%6,519,4076.52
2025-04-1543,362,494-10.4%9,995,4684.34
2025-03-3148,417,010+2.0%7,734,7216.26
2025-03-1447,486,150+4.9%15,940,7042.98
2025-02-2845,275,215+6.7%12,257,8783.69
2025-02-1442,427,798-0.7%15,387,6812.76
2025-01-3142,740,051+30.1%12,893,3193.31
2025-01-1532,854,600-6.9%5,705,0035.76
2024-12-3135,280,684+4.3%6,293,6885.61
2024-12-1333,823,111-4.5%7,647,4314.42
2024-11-2935,430,970-3.6%8,869,8313.99
2024-11-1536,767,412-2.9%12,565,1302.93
2024-10-3137,861,076-2.2%10,897,5183.47

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 28 October 2026, the short share of ASTS volume is 50.9%, down 8.9 points over the last five sessions. Over the last 30 readings it ranged from 41.9% (14 October 2026) to 70.1% (20 October 2026). The latest reading is 4.8 points below the 30-session average of 55.7%, on 5.1M shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-282.6M5.1M50.9%6,396
2026-10-273.6M7.1M51.1%16,538
2026-10-262.8M4.9M57.8%4,030
2026-10-233.1M6.2M50.3%11,884
2026-10-223.9M7.8M50.5%34,252
2026-10-212.8M4.7M59.8%3,091
2026-10-204.8M6.8M70.1%10,363
2026-10-193.8M6.1M61.5%14,490
2026-10-164.1M7.1M57.6%14,492
2026-10-155.4M9.9M54.3%624,767
2026-10-145.1M12.3M41.9%678,973
2026-10-136.8M11.1M61.5%509,843
2026-10-125.6M9.4M59.1%693,200
2026-10-0913.5M26.4M51.3%1,746,678
2026-10-084.6M6.8M66.9%3,733
2026-10-072.4M4.3M56.5%3,943
2026-10-063.6M7.3M49.2%26,444
2026-10-052.2M3.4M65.1%5,656
2026-10-023.1M6.4M48.3%32,421
2026-10-012.8M5.4M52.6%14,920
2026-09-302.2M4.7M47.5%12,365
2026-09-294.1M7.5M55.0%12,353
2026-09-281.7M2.8M59.1%5,686
2026-09-251.9M3.1M60.4%2,832
2026-09-241.9M3.8M48.4%2,476
2026-09-231.9M3.5M52.4%10,450
2026-09-222.2M4.3M52.2%30,898
2026-09-212.0M4.4M46.8%23,564
2026-09-183.9M5.7M68.8%6,617
2026-09-172.5M4.0M62.6%12,087

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 29 September 2026, the fails-to-deliver balance in ASTS is 31,793 shares, down 18,181 shares over the last settlement date. Over the last 30 readings it ranged from 7 shares (2 September 2026) to 333,067 shares (3 September 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-09-2931,793$61.00$1.9M
2026-09-2849,974$61.81$3.1M
2026-09-25124,767$61.06$7.6M
2026-09-23168,053$63.69$10.7M
2026-09-227,018$61.89$434K
2026-09-216,590$58.52$386K
2026-09-1837,225$62.71$2.3M
2026-09-14100,073$59.86$6.0M
2026-09-1082,151$62.42$5.1M
2026-09-0985,830$66.12$5.7M
2026-09-086,255$62.31$390K
2026-09-04148,667$62.13$9.2M
2026-09-03333,067$62.40$20.8M
2026-09-027$55.80$391
2026-09-0184,978$59.10$5.0M
2026-08-3126,373$58.05$1.5M
2026-08-2770,180$59.88$4.2M
2026-08-2637,586$62.01$2.3M
2026-08-2541,837$62.35$2.6M
2026-08-2490,322$68.65$6.2M
2026-08-208,657$66.43$575K
2026-08-19646$67.07$43K
2026-08-172,029$70.98$144K
2026-08-14708$71.52$51K
2026-08-1319,383$74.31$1.4M
2026-08-121,360$71.63$97K
2026-08-11992$68.76$68K
2026-08-1033,611$71.94$2.4M
2026-08-06275,874$68.38$18.9M
2026-08-0511,860$70.31$834K

Insider trades

SEC Form 4, newest first. JSON

Over the last 90 days ASTS insiders reported 3 open-market buys ($619K) against 2 sells ($3.1M), so the dollar flow leans toward selling. Latest filing: Bernal Maya (Chief Accounting Officer) on 2026-10-17.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-10-17Bernal MayaChief Accounting OfficerTax withholding4K$40.66$160K129K
2026-09-28Thorsen WayneEVP & Chief Commercial OfficerGrant200K$0.00$0200K
2026-09-16Yao HuiwenChief Technology OfficerSell40K$58.93$2.4M35K
2026-09-16Gupta Shanti B.Chief Operating OfficerSell12K$58.89$707K463K
2026-08-31Cisneros AdrianaDirectorBuy670$58.87$39K797K
2026-08-31Cisneros AdrianaDirectorBuy9K$57.00$500K796K
2026-08-31Cisneros AdrianaDirectorBuy1K$57.79$80K788K
2026-08-19Yao HuiwenChief Technology OfficerExercise (in or at the money)40K$0.06$3K75K
2026-08-17Avellan Abel AntonioChief Executive OfficerGrant150K$0.00$078.7M
2026-08-17Bernal MayaChief Accounting OfficerGrant20K$0.00$0132K
2026-08-17Johnson Andrew MartinCFO and CLOGrant75K$0.00$0556K
2026-08-17Gupta Shanti B.Chief Operating OfficerGrant75K$0.00$0475K
2026-08-17Wisniewski ScottPresidentGrant75K$0.00$0782K
2026-08-17Turco Christopher EdwardEVP and Chief of StaffGrant200K$0.00$0201K
2026-08-15Johnson Andrew MartinCFO and CLOTax withholding12K$70.98$873K481K
2026-08-15Johnson Andrew MartinCFO and CLOTax withholding10K$70.98$698K494K
2026-08-15Gupta Shanti B.Chief Operating OfficerTax withholding13K$70.98$906K400K
2026-08-15Bernal MayaChief Accounting OfficerTax withholding3K$70.98$207K112K
2026-08-15Wisniewski ScottPresidentTax withholding12K$70.98$873K707K
2026-08-15Wisniewski ScottPresidentTax withholding10K$70.98$698K720K
2026-06-12Wibergh JohanDirectorGrant2K$0.00$08K
2026-06-12Torres Julio A.DirectorGrant2K$0.00$045K
2026-06-12SARNOFF RICHARDDirectorGrant2K$0.00$080K
2026-06-12RUBIN RONALD LDirectorGrant2K$0.00$073K
2026-06-12Cisneros AdrianaDirectorGrant2K$0.00$0786K
2026-06-11Johnson Andrew MartinCFO and CLOSell46K$93.81$4.3M504K
2026-06-06Wibergh JohanDirectorTax withholding208$93.60$19K29K
2026-06-05Yao HuiwenChief Technology OfficerSell40K$96.37$3.9M35K
2026-05-30Avellan Abel AntonioChief Executive OfficerTax withholding33K$113.41$3.7M78.5M
2026-05-30Bernal MayaChief Accounting OfficerTax withholding3K$113.41$297K115K
2026-05-30Wisniewski ScottPresidentTax withholding16K$113.41$1.9M730K
2026-05-30Gupta Shanti B.Chief Operating OfficerTax withholding21K$113.41$2.4M413K
2026-05-30Johnson Andrew MartinCFO and CLOTax withholding16K$113.41$1.9M549K
2026-05-22Yao HuiwenChief Technology OfficerGrant30K$0.00$075K
2026-05-20Johnson Andrew MartinCFO and CLOSell5K$90.25$451K566K
2026-05-19Yao HuiwenChief Technology OfficerExercise (in or at the money)40K$0.06$3K45K
2026-05-18Gupta Shanti B.Chief Operating OfficerTax withholding11K$86.83$986K434K
2026-05-18Gupta Shanti B.Chief Operating OfficerGrant67K$0.00$0445K
2026-05-13Torres Julio A.DirectorSell15K$76.34$1.1M43K
2026-05-06Johnson Andrew MartinCFO and CLOTax withholding30K$70.68$2.1M571K
2026-04-15Rakuten Group, Inc.TenPercentOwnerSell1.4M$86.22$116.4M28.0M
2026-04-15Mikitani Hiroshi10% ownerSell1.4M$86.22$116.4M28.0M
2026-04-14Rakuten Group, Inc.TenPercentOwnerSell1.7M$91.42$154.5M29.3M
2026-04-14Mikitani Hiroshi10% ownerSell1.7M$91.42$154.5M29.3M
2026-03-31Wisniewski ScottPresidentTax withholding15K$82.87$1.3M772K
2026-03-31Johnson Andrew MartinCFO and CLOTax withholding12K$82.87$1.0M600K
2026-03-31Gupta Shanti B.Chief Operating OfficerTax withholding8K$82.87$693K379K
2026-03-31Avellan Abel AntonioChief Executive OfficerTax withholding22K$82.87$1.9M78.6M
2026-03-24Johnson Andrew MartinCFO and CLOGrant100K$0.00$0612K
2026-03-24Wisniewski ScottPresidentGrant123K$0.00$0787K
2026-03-24Avellan Abel AntonioChief Executive OfficerGrant184K$0.00$078.6M
2026-03-24Gupta Shanti B.Chief Operating OfficerGrant55K$0.00$0387K
2026-03-23Yao HuiwenChief Technology OfficerSell40K$88.88$3.6M5K
2026-03-21Bernal MayaChief Accounting OfficerTax withholding4K$89.93$330K118K
2026-03-11Yao HuiwenChief Technology OfficerExercise (in or at the money)40K$0.06$3K45K
2026-02-15Bernal MayaChief Accounting OfficerTax withholding833$82.51$69K122K
2025-12-24LARSON KEITH RDirectorBuy625$80.00$50K2K
2025-12-17LARSON KEITH RDirectorBuy715$70.02$50K1K
2025-12-10LARSON KEITH RDirectorBuy675$72.71$49K675
2025-12-10Gupta Shanti B.Chief Operating OfficerSell10K$77.34$773K382K
2025-12-09AMERICAN TOWER CORP /MA/Member of 10% owner groupSell2.3M$69.75$159.6M211K
2025-12-05Yao HuiwenChief Technology OfficerSell40K$73.52$2.9M5K
2025-12-05Bernal MayaChief Accounting OfficerSell6K$73.76$443K122K
2025-12-02Wisniewski ScottPresidentGrant125K$0.00$0714K
2025-12-02Avellan Abel AntonioChief Executive OfficerGrant250K$0.00$078.4M
2025-12-02Gupta Shanti B.Chief Operating OfficerGrant125K$0.00$0392K
2025-12-02Johnson Andrew MartinCFO and CLOGrant125K$0.00$0512K
2025-11-26Johnson Andrew MartinCFO and CLOSell10K$56.00$560K387K
2025-11-20Cisneros AdrianaDirectorBuy375$50.79$19K784K
2025-11-20Cisneros AdrianaDirectorBuy375$50.79$19K784K
2025-11-14Yao HuiwenChief Technology OfficerExercise (in or at the money)40K$0.06$3K45K
2025-10-17Bernal MayaChief Accounting OfficerTax withholding4K$83.49$329K128K
2025-09-26Wisniewski ScottPresidentTax withholding29K$49.09$1.4M589K
2025-09-16Yao HuiwenChief Technology OfficerSell40K$40.58$1.6M5K
2025-09-15Gupta Shanti B.Chief Operating OfficerTax withholding26K$40.97$1.0M267K
2025-09-03Yao HuiwenChief Technology OfficerSell16K$48.04$769K45K
2025-09-02Yao HuiwenChief Technology OfficerExercise (in or at the money)40K$0.06$3K61K
2025-08-26Johnson Andrew MartinCFO and CLOSell20K$52.48$1.0M397K
2025-08-15Gupta Shanti B.Chief Operating OfficerTax withholding13K$48.08$613K293K
2025-08-15Wisniewski ScottPresidentTax withholding10K$48.08$473K617K
2025-08-15Wisniewski ScottPresidentTax withholding12K$48.08$591K627K
2025-08-15Wisniewski ScottPresidentGrant94K$0.00$0639K
2025-08-15Bernal MayaChief Accounting OfficerTax withholding2K$48.08$120K132K
2025-08-15Johnson Andrew MartinCFO and CLOTax withholding10K$48.08$473K417K
2025-08-15Johnson Andrew MartinCFO and CLOTax withholding12K$48.08$591K427K
2025-08-15Johnson Andrew MartinCFO and CLOGrant94K$0.00$0440K
2025-06-24Wibergh JohanDirectorGrant801$0.00$029K
2025-06-24Torres Julio A.DirectorGrant801$0.00$058K
2025-06-24SARNOFF RICHARDDirectorGrant801$0.00$078K
2025-06-24RUBIN RONALD LDirectorGrant801$0.00$071K
2025-06-24Cisneros AdrianaDirectorGrant801$0.00$0783K
2025-06-16Gupta Shanti B.Chief Operating OfficerSell10K$41.84$418K306K
2025-06-10Yao HuiwenChief Technology OfficerSell4K$34.60$147K21K
2025-06-09Wisniewski ScottPresidentSell50K$35.65$1.8M546K
2025-06-09Gupta Shanti B.Chief Operating OfficerSell15K$36.08$541K316K
2025-06-06Wibergh JohanDirectorGrant5K$0.00$028K
2025-06-06SARNOFF RICHARDDirectorGrant5K$0.00$077K
2025-06-06RUBIN RONALD LDirectorGrant5K$0.00$070K
2025-06-06Torres Julio A.DirectorGrant5K$0.00$057K
2025-06-06Cisneros AdrianaDirectorGrant5K$0.00$0783K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

Planned sales (Form 144)

Newest first. JSON

16 Form 144 notices on file for ASTS worth $382.0M at the prices reported; 2 in the last 90 days worth $3.1M. Latest: Yao Huiwen filed on 2026-09-16 to sell 40,000 shares ($2.4M) from 2026-09-16.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-09-16Yao HuiwenOfficer40K$2.4M0.013%2026-09-16B. Riley Securities, Inc.
2026-09-16Gupta Shanti B.Officer12K$707K0.004%2026-09-16Fidelity Brokerage Services LLC
2026-06-22AA Gables 2, LLC(1)2.5M$183.0M0.837%2026-06-22Citigroup Global Markets Inc.
2026-06-11Andrew JohnsonEVP, CFO &amp; CLO21K$1.9M0.007%2026-06-11UBS Financial Services Inc
2026-06-11Johnson Andrew MartinOfficer, Director25K$2.4M0.008%2026-06-11Fidelity Brokerage Services LLC
2026-06-05Yao HuiwenOfficer40K$4.3M0.013%2026-06-05B. Riley Securities, Inc.
2026-05-27Wisniewski ScottOfficer26K$3.3M0.009%2026-05-27Fidelity Brokerage Services LLC
2026-05-20Andrew JohnsonOfficer5K$451K0.002%2026-05-20UBS Financial Services Inc
2026-03-23Yao HuiwenOfficer40K$3.6M0.014%2026-03-23B. Riley Securities, Inc.
2026-03-17Wisniewski ScottOfficer47K$4.5M0.016%2026-03-17Fidelity Brokerage Services LLC
2025-12-10Gupta Shanti B.Officer10K$773K0.004%2025-12-10Fidelity Brokerage Services LLC
2025-12-09AMERICAN TOWER CORP /MA/Member of 10% owner group2.3M$169.4M0.811%2025-12-09Barclays Capital Inc.
2025-12-05Bernal MayaOfficer6K$443K0.002%2025-12-05Fidelity Brokerage Services LLC
2025-12-05Yao HuiwenOfficer40K$2.9M0.014%2025-12-05B. Riley Securities, Inc.
2025-11-26Johnson Andrew MartinOfficer, Director10K$560K0.004%2025-11-26Fidelity Brokerage Services LLC
2025-09-15Yao HuiwenOfficer40K$1.5M0.015%2025-09-16B. Riley Securities, Inc.

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

7 holders report 5% or more of ASTS in their latest filing, 6 on Schedule 13D (active intent). The largest reported stake is Abel Avellan at 20.8% of the class (78,252,625 shares), filed 2026-06-23 for an event on 2026-06-22.

FiledFormHolderSharesOf classEvent
2026-10-2713GBlackRock, Inc.parent holding company16.1M5.4%2026-09-30
2026-06-2313D/Ano. 18Abel Avellanindividual78.3M20.8%2026-06-22
2026-05-0513D/Ano. 4Rakuten Mobile, Inc.corporation15.5M5.3%2026-05-01
2026-05-0513D/Ano. 4Hiroshi Mikitaniindividual15.5M5.3%2026-05-01
2026-05-0513D/Ano. 4Rakuten Group, Inc.corporation15.5M5.3%2026-05-01
2026-03-2613G/Ano. 3The Vanguard Groupinvestment adviser00.0%2026-03-13
2026-02-1713D/Ano. 3Vodafone Ventures Ltdcorporation14.5M5.0%2026-01-29
2026-02-1713D/Ano. 3Vodafone Group Plccorporation14.5M5.0%2026-01-29
2025-12-1113D/Ano. 1American Tower Corporationcorporation2.4M0.8%2025-12-09
2025-12-1113D/Ano. 1ATC TRS II LLCcorporation2.4M0.8%2025-12-09

13F holders

Tracked managers holding ASTS at their latest 13F. JSON

6 of the 30 tracked managers held ASTS at their latest 13F, $112.3M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $87.0M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 3 cut.

FundQuarterSharesValueOf portfolioChange in shares
D. E. Shaw & Co.2026-06-30979K$87.0M0.04%-2.5M
Renaissance Technologies2026-06-30193K$17.1M0.02%new
AQR Capital Management2026-06-3035K$3.0M0.00%-57K
Citadel Advisors2026-06-3033K$2.9M0.00%-667K
Millennium Management2026-06-3022K$2.0M0.00%+7K
Fisher Asset Management2026-06-302K$210K0.00%new

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In FY 2025 it generated -$71.5M of operating cash flow. As of 2026-06-30, cash was $2.29B against $2.96B of debt.

Cash
$2.29B
Debt
$2.96B
Total assets
$5.85B

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 FY 20262026-06-30n/a-$230.9Mn/an/a
Q1 FY 20262026-03-31n/a-$191.0Mn/an/a
Q4 FY 2025derived2025-12-31n/a-$74.0Mn/an/a
Q3 FY 20252025-09-30n/a-$122.9Mn/an/a
Q2 FY 20252025-06-30n/a-$99.4Mn/an/a
Q1 FY 20252025-03-31n/a-$45.7Mn/an/a
Q4 FY 2024derived2024-12-31$11.3M-$35.9M-316.6%n/a
Q3 FY 20242024-09-30$1.1M-$171.9M-15631.5%n/a

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31n/a-$341.9M-$71.5M$1.06Bn/an/a
FY 20242024-12-31$13.8M-$300.1M-$126.1M$174.1Mn/an/a
FY 20232023-12-31$0-$87.6M-$148.9M$118.8Mn/an/a
FY 20222022-12-31$13.8M-$31.6M-$156.5M$57.3Mn/an/a
FY 20212021-12-31$12.4M-$30.6M-$80.1M$15.1Mn/an/a

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30.

What this page is

AST SpaceMobile in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows AST SpaceMobile (ASTS), SEC CIK 1780312, listed on Nasdaq, classified by the SEC as communications services, nec. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest
FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-28.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-29.JSON and CSV
Planned sales
SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-09-16.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-10-27.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Earnings dates
SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-10.JSON and CSV
Insider trades
SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-17.JSON and CSV
Company record
EDGAR filing index for CIK 1780312Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
10 requests a minute without a key, 30 with a free key from a free account.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Datasets

Frequently Asked Questions

How much of ASTS is sold short?
65,868,038 shares were held short at the 2026-10-15 settlement, 3.2 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is ASTS's daily short volume?
On 2026-10-28, 2,605,749 of the 5,123,295 ASTS shares reported to FINRA were sold short, 50.9% of the day's reported volume. Short volume is a flow for one day, not a position.
Does ASTS have fails to deliver?
The SEC's latest file shows 31,793 ASTS shares failed to deliver at settlement 2026-09-29. Fails are reported per settlement date and published twice a month with a lag.
Are ASTS insiders buying or selling?
Over the last 90 days ASTS insiders reported 3 open-market buys ($619K) against 2 sells ($3.1M), so the dollar flow leans toward selling. Latest filing: Bernal Maya (Chief Accounting Officer) on 2026-10-17.
Have ASTS insiders filed to sell?
16 Form 144 notices on file for ASTS worth $382.0M at the prices reported; 2 in the last 90 days worth $3.1M. Latest: Yao Huiwen filed on 2026-09-16 to sell 40,000 shares ($2.4M) from 2026-09-16.
Who owns 5% or more of ASTS?
7 holders report 5% or more of ASTS in their latest filing, 6 on Schedule 13D (active intent). The largest reported stake is Abel Avellan at 20.8% of the class (78,252,625 shares), filed 2026-06-23 for an event on 2026-06-22.
What did ASTS report last quarter?
In FY 2025 it generated -$71.5M of operating cash flow. As of 2026-06-30, cash was $2.29B against $2.96B of debt.
Which tracked 13F managers own ASTS?
6 of the 30 tracked 13F managers held ASTS shares at their latest filing, $112.3M in all. The largest: D. E. Shaw & Co. (979K shares, $87.0M), Renaissance Technologies (193K shares, $17.1M), Cliff Asness's AQR Capital Management (35K shares, $3.0M), Ken Griffin's Citadel Advisors (33K shares, $2.9M), Izzy Englander's Millennium Management (22K shares, $2.0M), Ken Fisher's Fisher Asset Management (2K shares, $210K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.