AST SpaceMobile, Inc.
AST SpaceMobile, Inc. (ASTS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ASTS · as of Sep 30, 2025
Ownership Breakdown
460
Institutional Holders
▲ 30 vs Q2
$6.65B
Total Inst. Value
▲ $720.56M vs Q2
298.75M
Shares Outstanding
freeFloat 88.91%
135.47M
13F Shares Held
▲ 8.52M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
ASTS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
RAKUTEN GROUP, INC. communications services, nec | 31.02M | 12.82% | 12.82% | $1.52T | Nov 5, 2025 | — held |
VANGUARD GROUP INC communications services, nec | 19.92M | 8.23% | 8.23% | $977.67B | Nov 7, 2025 | ▲ 2.35M |
BLACKROCK, INC. communications services, nec | 10.68M | 4.41% | 4.41% | $523.99B | Nov 12, 2025 | ▲ 490.7K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP communications services, nec | 9.86M | 4.07% | 4.07% | $483.76B | Nov 14, 2025 | ▲ 2.32M |
ALPHABET INC. communications services, nec | 8.94M | 3.70% | 3.70% | $438.95B | Nov 7, 2025 | — held |
SUSQUEHANNA INTERNATIONAL GROUP, LLP communications services, nec | 5.44M | 2.25% | 2.25% | $267.03B | Nov 14, 2025 | ▲ 426.5K |
UBS GROUP AG communications services, nec | 5.00M | 2.07% | 2.07% | $245.62B | Nov 13, 2025 | ▲ 1.60M |
CITADEL ADVISORS LLC communications services, nec | 4.66M | 1.93% | 1.93% | $228.87B | Nov 14, 2025 | ▲ 1.73M |
GEODE CAPITAL MANAGEMENT, LLC communications services, nec | 4.12M | 1.70% | 1.70% | $202.25B | Nov 12, 2025 | ▲ 731.9K |
UBS GROUP AG communications services, nec | 3.95M | 1.63% | 1.63% | $193.68B | Nov 13, 2025 | ▲ 1.83M |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
32
Increased
+22.11M shares2
New Positions
first time holders12
Decreased
−5.18M shares0
Sold Out
fully exitedNet shares change (top 50)
+16.93M
+22.11M / −5.18M
Net new holders
+22
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ASTS insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
2
Buy transactions
7
Sell transactions
0.29
Buy/Sell ratio
$3M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Avellan Abel Antonio Chief Executive Officer | May 30, 2026 | Tax Withhold | 32,754 | $113.41 | $3.71M | 78.54M | Form 4 ↗ |
Bernal Maya Chief Accounting Officer | May 30, 2026 | Tax Withhold | 2,621 | $113.41 | $297.2K | 115.4K | Form 4 ↗ |
Wisniewski Scott President | May 30, 2026 | Tax Withhold | 16,377 | $113.41 | $1.86M | 729.6K | Form 4 ↗ |
Johnson Andrew Martin CFO and CLO | May 30, 2026 | Tax Withhold | 16,377 | $113.41 | $1.86M | 549.4K | Form 4 ↗ |
Gupta Shanti B. Chief Operating Officer | May 30, 2026 | Tax Withhold | 21,275 | $113.41 | $2.41M | 412.7K | Form 4 ↗ |
Wisniewski Scott President | May 27, 2025 | Sale | 25,904 | $126.64 | $3.28M | 746.0K | Form 4 ↗ |
Yao Huiwen Chief Technology Officer | May 22, 2026 | Award | 30,000 | — | — | 74.8K | Form 4 ↗ |
Johnson Andrew Martin CFO and CLO | May 20, 2026 | Sale | 5,000 | $90.25 | $451.3K | 565.8K | Form 4 ↗ |
Gupta Shanti B. Chief Operating Officer | May 18, 2026 | Award | 66,667 | — | — | 445.4K | Form 4 ↗ |
Gupta Shanti B. Chief Operating Officer | May 18, 2026 | Tax Withhold | 11,350 | $86.83 | $985.5K | 434.0K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
AST SpaceMobile, Inc. (ASTS) is primarily owned by institutional investors, who hold approximately 45.4% of total shares outstanding. Company insiders own approximately 11.09%, while retail and public investors account for the remaining 43.56%.
The largest institutional shareholder of AST SpaceMobile, Inc. is RAKUTEN GROUP, INC., holding approximately 31.02 million shares — equal to 12.82% of outstanding shares — as of September 30, 2025.
A total of 460 institutional investors currently hold ASTS stock, with a combined institutional value of approximately $6.65 billion as of the most recent 13F filing period.
Frequently asked questions
ASTS ownershipAST SpaceMobile, Inc. (ASTS) is primarily owned by institutional investors, who hold approximately 45.4% of shares. The largest shareholder is RAKUTEN GROUP, INC. with a 12.82% stake. Company insiders hold 11.09%. Data sourced from SEC Form 13F as of September 30, 2025.