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 Sep 30, 2025
Ownership Breakdown
252
Institutional Holders
▲ 40 vs Q2
$886.60M
Total Inst. Value
▲ $223.43M vs Q2
63.67M
Shares Outstanding
freeFloat 94.01%
32.76M
13F Shares Held
▲ 5.41M 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
OUST largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. general industrial machinery & equipment, nec | 4.87M | 9.10% | 9.10% | $131.61B | Nov 12, 2025 | ▲ 830.7K |
VANGUARD GROUP INC general industrial machinery & equipment, nec | 4.72M | 8.83% | 8.83% | $127.68B | Nov 7, 2025 | ▲ 478.4K |
STATE STREET CORP general industrial machinery & equipment, nec | 1.79M | 3.35% | 3.35% | $48.44B | Nov 14, 2025 | ▲ 118.8K |
DRIEHAUS CAPITAL MANAGEMENT LLC general industrial machinery & equipment, nec | 1.52M | 2.85% | 2.85% | $41.21B | Nov 14, 2025 | NEW |
GEODE CAPITAL MANAGEMENT, LLC general industrial machinery & equipment, nec | 1.30M | 2.44% | 2.44% | $35.25B | Nov 12, 2025 | ▲ 112.5K |
TAO CAPITAL MANAGEMENT LP general industrial machinery & equipment, nec | 1.13M | 2.10% | 2.10% | $30.44B | Nov 12, 2025 | — held |
SLATE PATH CAPITAL LP general industrial machinery & equipment, nec | 829.0K | 1.55% | 1.55% | $22.42B | Nov 14, 2025 | NEW |
MORGAN STANLEY general industrial machinery & equipment, nec | 788.6K | 1.47% | 1.47% | $21.33B | May 27, 2026 | ▲ 167.5K |
RENAISSANCE TECHNOLOGIES LLC general industrial machinery & equipment, nec | 783.0K | 1.46% | 1.46% | $21.18B | Nov 13, 2025 | ▲ 392.4K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP general industrial machinery & equipment, nec | 669.4K | 1.25% | 1.25% | $18.11B | Nov 14, 2025 | ▼ 85.5K |
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
29
Increased
+5.59M shares7
New Positions
first time holders13
Decreased
−2.36M shares0
Sold Out
fully exitedNet shares change (top 50)
+3.23M
+5.59M / −2.36M
Net new holders
+23
7 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 51.5% of total shares outstanding. Company insiders own approximately 5.99%, while retail and public investors account for the remaining 42.55%.
The largest institutional shareholder of Ouster, Inc. is BLACKROCK, INC., holding approximately 4.87 million shares — equal to 9.10% of outstanding shares — as of September 30, 2025.
A total of 252 institutional investors currently hold OUST stock, with a combined institutional value of approximately $886,602,925 as of the most recent 13F filing period.
Frequently asked questions
OUST ownershipOuster, Inc. (OUST) is primarily owned by institutional investors, who hold approximately 51.5% of shares. The largest shareholder is BLACKROCK, INC. with a 9.10% stake. Company insiders hold 5.99%. Data sourced from SEC Form 13F as of September 30, 2025.