Ouster, Inc.
Ouster, Inc. (OUST) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · OUST · as of Mar 31, 2025
Ownership Breakdown
171
Institutional Holders
▲ 7 vs Q4
$210.62M
Total Inst. Value
▼ $72.30M vs Q4
63.67M
Shares Outstanding
freeFloat 94.01%
23.46M
13F Shares Held
▲ 368,727 vs Q4
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
OUST largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC general industrial machinery & equipment, nec | 3.83M | 7.29% | 7.29% | $34.35B | May 9, 2025 | ▲ 190.9K |
BLACKROCK, INC. general industrial machinery & equipment, nec | 3.62M | 6.91% | 6.91% | $32.55B | May 2, 2025 | ▲ 74.1K |
STATE STREET CORP general industrial machinery & equipment, nec | 1.94M | 3.70% | 3.70% | $17.45B | May 15, 2025 | ▲ 35.3K |
PENN CAPITAL MANAGEMENT COMPANY, LLC general industrial machinery & equipment, nec | 1.16M | 2.20% | 2.20% | $10.39B | May 14, 2025 | ▲ 60.9K |
TAO CAPITAL MANAGEMENT LP general industrial machinery & equipment, nec | 1.13M | 2.14% | 2.14% | $10.11B | May 12, 2025 | — held |
GEODE CAPITAL MANAGEMENT, LLC general industrial machinery & equipment, nec | 1.10M | 2.09% | 2.09% | $9.84B | May 13, 2025 | ▲ 72.8K |
MILLENNIUM MANAGEMENT LLC general industrial machinery & equipment, nec | 972.8K | 1.85% | 1.85% | $8.74B | May 15, 2025 | ▲ 431.1K |
NEW YORK STATE COMMON RETIREMENT FUND general industrial machinery & equipment, nec | 760.0K | 1.45% | 1.45% | $6.82B | Oct 8, 2025 | ▲ 460 |
MORGAN STANLEY general industrial machinery & equipment, nec | 626.9K | 1.19% | 1.19% | $5.63B | May 15, 2025 | ▲ 194.4K |
DIMENSIONAL FUND ADVISORS LP general industrial machinery & equipment, nec | 571.6K | 1.09% | 1.09% | $5.14B | May 13, 2025 | ▲ 100.6K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
29
Increased
+2.96M shares4
New Positions
first time holders14
Decreased
−1.27M shares0
Sold Out
fully exitedNet shares change (top 50)
+1.69M
+2.96M / −1.27M
Net new holders
+19
4 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
OUST 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.
20
Buy transactions
47
Sell transactions
0.43
Buy/Sell ratio
$1M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Jacquemet Cyrille Chief Revenue Officer | May 26, 2026 | Sale | 9,433 | $40.00 | $377.3K | 123.2K | Form 4 ↗ |
Frichtl Mark Chief Technology Officer | May 22, 2026 | Sale | 35,684 | $36.39 | $1.30M | 643.7K | Form 4 ↗ |
Frichtl Mark Chief Technology Officer | May 22, 2026 | Sale | 40,000 | $37.16 | $1.49M | 603.7K | Form 4 ↗ |
Frichtl Mark Chief Technology Officer | May 26, 2026 | Sale | 19,669 | $39.16 | $770.2K | 584.0K | Form 4 ↗ |
Frichtl Mark Chief Technology Officer | May 26, 2026 | Sale | 76,582 | $39.94 | $3.06M | 507.4K | Form 4 ↗ |
Frichtl Mark Chief Technology Officer | May 26, 2026 | Sale | 70,558 | $40.90 | $2.89M | 436.9K | Form 4 ↗ |
Frichtl Mark Chief Technology Officer | May 26, 2026 | Sale | 48,191 | $41.99 | $2.02M | 388.7K | Form 4 ↗ |
Frichtl Mark Chief Technology Officer | May 26, 2026 | Sale | 45,000 | $43.00 | $1.94M | 343.7K | Form 4 ↗ |
Frichtl Mark Chief Technology Officer | May 26, 2026 | Sale | 45,000 | $44.00 | $1.98M | 298.7K | Form 4 ↗ |
Frichtl Mark Chief Technology Officer | May 26, 2026 | Sale | 3,742 | $45.00 | $168.4K | 294.9K | 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
Ouster, Inc. (OUST) is primarily owned by institutional investors, who hold approximately 36.8% of total shares outstanding. Company insiders own approximately 5.99%, while retail and public investors account for the remaining 57.17%.
The largest institutional shareholder of Ouster, Inc. is VANGUARD GROUP INC, holding approximately 3.83 million shares — equal to 7.29% of outstanding shares — as of March 31, 2025.
A total of 171 institutional investors currently hold OUST stock, with a combined institutional value of approximately $210,617,634 as of the most recent 13F filing period.
Frequently asked questions
OUST ownershipOuster, Inc. (OUST) is primarily owned by institutional investors, who hold approximately 36.8% of shares. The largest shareholder is VANGUARD GROUP INC with a 7.29% stake. Company insiders hold 5.99%. Data sourced from SEC Form 13F as of March 31, 2025.