Ouster, Inc.
Ownership
Ownership Structure
Who owns Ouster, Inc. (OUST)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 97.0% of the shares are freely tradable; institutional investors hold 50.0%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 7.34 | 5,290,375 | +3.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.69 | 2,664,383 | +0.0 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 2.45 | 1,770,252 | +0.0 | 03/31/2026 |
| State Street Corp | 2.26 | 1,632,666 | +3.3 | 03/31/2026 |
| Geode Capital Management, LLC | 2.01 | 1,450,108 | +2.0 | 03/31/2026 |
| The Goldman Sachs Group Inc | 1.15 | 826,233 | +121.5 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 2.82 | 2,036,646 | +6.3 | 07/31/2026 |
| iShares Russell 2000 ETF | 2.23 | 1,606,682 | -0.6 | 08/31/2026 |
| Vanguard Information Technology ETF | 1.79 | 1,287,487 | +0.4 | 07/31/2026 |
| Vanguard Institutional Extnd Mkt Idx Tr | 1.08 | 775,604 | +6.2 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Pacala Charles Angus | President and CEO | 1,041,816 | 36,567,742 $ | Sep 14, 2026 | direct |
| Frichtl Mark | Chief Technology Officer | 318,987 | 11,196,444 $ | Sep 14, 2026 | direct |
| Spencer Darien | Chief Operating Officer | 286,999 | 10,073,647 $ | Sep 14, 2026 | direct |
| Gianella Kenneth P. | Chief Financial Officer | 245,328 | 8,611,013 $ | Sep 14, 2026 | direct |
| Chung Megan | General Counsel and Secretary | 189,291 | 6,644,114 $ | Sep 14, 2026 | direct |
| Jacquemet Cyrille | Chief Revenue Officer | 105,539 | 3,704,401 $ | Sep 14, 2026 | direct |
| Skaggs Stephen A | Director | 61,415 | 2,155,667 $ | Aug 6, 2026 | direct |
| Heystee Susan | Director | 40,479 | 1,420,802 $ | Jul 6, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 14, 2026 | Chung Megan | General Counsel and Secretary | Sell | 11,484 | 33.96 | 389,993 |
| Sep 14, 2026 | Spencer Darien | Chief Operating Officer | Sell | 12,808 | 33.96 | 434,953 |
| Sep 14, 2026 | Pacala Charles Angus | President and CEO | Sell | 30,385 | 33.96 | 1,031,847 |
| Sep 14, 2026 | Jacquemet Cyrille | Chief Revenue Officer | Sell | 8,896 | 33.96 | 302,093 |
| Sep 14, 2026 | Gianella Kenneth P. | Chief Financial Officer | Sell | 15,686 | 33.96 | 532,682 |
| Sep 14, 2026 | Frichtl Mark | Chief Technology Officer | Sell | 18,778 | 33.96 | 637,691 |
| Sep 9, 2026 | Chung Megan | General Counsel and Secretary | Other | 2,084 | 0.00 | – |
| Sep 2, 2026 | Frichtl Mark | Chief Technology Officer | Other | 38,745 | 0.00 | – |
| Aug 26, 2026 | Frichtl Mark | Chief Technology Officer | Other | 100,000 | 14.22 | 1,422,000 |
| Aug 18, 2026 | Gianella Kenneth P. | Chief Financial Officer | Sell | 508 | 47.09 | 23,919 |
| Aug 18, 2026 | Gianella Kenneth P. | Chief Financial Officer | Sell | 8,201 | 46.40 | 380,555 |
| Aug 18, 2026 | Gianella Kenneth P. | Chief Financial Officer | Sell | 13,364 | 45.52 | 608,387 |
| Aug 18, 2026 | Gianella Kenneth P. | Chief Financial Officer | Sell | 17,927 | 44.65 | 800,417 |
| Aug 6, 2026 | Skaggs Stephen A | Director | Sell | 3,614 | 45.18 | 163,281 |
| Aug 5, 2026 | Skaggs Stephen A | Director | Sell | 1,386 | 46.48 | 64,421 |
| Aug 4, 2026 | Spencer Darien | Chief Operating Officer | Sell | 30,000 | 45.00 | 1,350,000 |
| Jul 6, 2026 | Heystee Susan | Director | Other | 660 | 49.83 | 32,888 |
| Apr 22, 2026 | Mark Frichtl | CTO | Sell | 400 | 30.00 | 12,000 |
| Apr 21, 2026 | Stephen A Skaggs | Director | Sell | 5,000 | 28.00 | 140,000 |
| Apr 20, 2026 | Mark Frichtl | CTO | Sell | 60,000 | 26.58 | 1,594,800 |
| Apr 17, 2026 | Mark Frichtl | CTO | Sell | 30,000 | 25.15 | 754,500 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.