OUSTER INC OUST
COM NEW · Common Stock · CUSIP 68989M202 · ISIN US68989M2026
American technology company
- SectorIndustrials
- IndustryGeneral Industrial Machinery & Equipment, NEC
- HeadquartersSan Francisco, CA
- Founded2015
- Websiteouster.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($664.5k this quarter). Holder counts are more reliable. Shares outstanding: 57.8m as of 2025-08-08, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $24.25. Options: 17 managers hold calls ($93.5m notional), 13 hold puts ($26.6m).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q1 2023 | 3 |
| Q2 2023 | 91 |
| Q3 2023 | 95 |
| Q4 2023 | 112 |
| Q1 2024 | 107 |
| Q2 2024 | 127 |
| Q3 2024 | 135 |
| Q4 2024 | 145 |
| Q1 2025 | 159 |
| Q2 2025 | 193 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 41 | 30 |
| Q4 2023 | 64 | 29 |
| Q1 2024 | 51 | 45 |
| Q2 2024 | 68 | 51 |
| Q3 2024 | 75 | 43 |
| Q4 2024 | 98 | 43 |
| Q1 2025 | 89 | 56 |
| Q2 2025 | 124 | 69 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $4.5m | $4.9m | 1.10 |
| Q4 2024 | $15.4m | $7.8m | 0.50 |
| Q1 2025 | $13.7m | $9.1m | 0.67 |
| Q2 2025 | $93.5m | $26.6m | 0.28 |
Biggest buyers
| D. E. Shaw & Co., Inc. | Added | +699.8k |
| Invesco Ltd. | Added | +536.4k |
| T. Rowe Price Investment Management, Inc. | New | +506.1k |
| VANGUARD GROUP INC | Added | +416.3k |
| BlackRock, Inc. | Added | +410.0k |
| Nuveen, LLC | Added | +390.0k |
| TUDOR INVESTMENT CORP ET AL | New | +356.7k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +318.7k |
| HRT FINANCIAL LP | New | +234.4k |
| TWO SIGMA INVESTMENTS, LP | New | +214.1k |
Biggest sellers
| Penn Capital Management Company, LLC | Reduced | -467.5k |
| ArrowMark Colorado Holdings LLC | Sold out | -314.0k |
| NEW YORK STATE COMMON RETIREMENT FUND | Reduced | -298.9k |
| STATE STREET CORP | Reduced | -271.5k |
| Maxi Investments CY Ltd | Sold out | -200.0k |
| UBS Group AG | Reduced | -179.4k |
| Balyasny Asset Management L.P. | Sold out | -134.3k |
| Graham Capital Management, L.P. | Sold out | -99.3k |
| Mitsubishi UFJ Asset Management Co., Ltd. | Reduced | -98.7k |
| Trexquant Investment LP | Reduced | -67.8k |
Biggest calls
| PEAK6 LLC | Added | $27.5m1.1m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $18.3m754.9k shares |
| GROUP ONE TRADING LLC | Added | $11.2m460.7k shares |
| CITADEL ADVISORS LLC | Added | $6.8m281.1k shares |
| SIMPLEX TRADING, LLC | Added | $4.9m200.8k shares |
| WOLVERINE TRADING, LLC | New | $4.7m196.4k shares |
| IMC-Chicago, LLC | Added | $4.6m191.5k shares |
| JANE STREET GROUP, LLC | Added | $4.2m171.4k shares |
| Crescent Park Management, L.P. | Unchanged | $3.3m136.2k shares |
| D. E. Shaw & Co., Inc. | New | $2.4m98.8k shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $7.3m299.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $4.2m171.2k shares |
| GROUP ONE TRADING LLC | Added | $2.7m111.6k shares |
| Walleye Capital LLC | Added | $2.7m110.2k shares |
| JANE STREET GROUP, LLC | Reduced | $2.2m89.3k shares |
| IMC-Chicago, LLC | Added | $2.0m81.4k shares |
| WOLVERINE TRADING, LLC | New | $1.7m68.9k shares |
| SIMPLEX TRADING, LLC | Added | $1.3m54.8k shares |
| Walleye Trading LLC | Added | $1.3m52.4k shares |
| Ionic Capital Management LLC | New | $1.2m50.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution +1.1 pts · filed 2026-07-29 | 8.5% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 2 | $505.6k | 4 | $103.1k | $56.2k |
| Q4 2023 | 2 | $89.4k | 3 | $56.6k | — |
| Q1 2024 | 0 | — | 3 | $60.7k | — |
| Q2 2024 | 3 | $521.0k | 3 | $419.9k | $186.9k |
| Q3 2024 | 2 | $140.5k | 4 | $111.2k | — |
| Q4 2024 | 2 | $548.3k | 3 | $788.6k | $313.8k |
| Q1 2025 | 0 | — | 3 | $148.3k | $65.2k |
| Q2 2025 | 0 | — | 2 | $113.6k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-06-12 | SPENCER DARIEN Chief Operating Officer | Sold | $60.5k3.2k shares |
| 2025-06-12 | Chung Megan General Counsel and Secretary | Sold | $53.1k2.8k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.00% of their portfolio | 4.2m $102.9m | Added +416.3k |
| BlackRock, Inc. 0.00% of their portfolio | 4.0m $97.8m | Added +410.0k |
| STATE STREET CORP 0.00% of their portfolio | 1.7m $40.5m | Reduced -271.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.2m $28.9m | Added +95.5k |
| Tao Capital Management LP 20.01% of their portfolio | 1.1m $27.3m | Unchanged |
| MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio | 1.1m $25.8m | Added +93.0k |
| D. E. Shaw & Co., Inc. 0.03% of their portfolio | 1.1m $25.8m | Added +699.8k |
| Penn Capital Management Company, LLC 1.44% of their portfolio | 687.9k $16.7m | Reduced -467.5k |
| MARSHALL WACE, LLP 0.02% of their portfolio | 687.3k $16.7m | Added +154.4k |
| MORGAN STANLEY 0.00% of their portfolio | 621.1k $15.1m | Reduced -5.8k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 581.3k $14.1m | Added +9.7k |
| Invesco Ltd. 0.00% of their portfolio | 571.7k $13.9m | Added +536.4k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 524.3k $12.7m | Reduced -2.0k |
| Nuveen, LLC 0.00% of their portfolio | 513.1k $12.4m | Added +390.0k |
| T. Rowe Price Investment Management, Inc. 0.01% of their portfolio | 506.1k $12.3m | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 461.1k $11.2m | Reduced -298.9k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 432.1k $10.5m | Added +140.7k |
| Trexquant Investment LP 0.11% of their portfolio | 413.5k $10.0m | Reduced -67.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 397.8k $9.6m | Added +29.5k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 397.7k $9.6m | Added +19.9k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 390.6k $9.5m | Added +318.7k |
| TUDOR INVESTMENT CORP ET AL 0.07% of their portfolio | 356.7k $8.7m | New |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 275.2k $6.7m | Added +206.8k |
| ESSEX INVESTMENT MANAGEMENT CO LLC 1.10% of their portfolio | 250.2k $6.1m | Reduced -16.6k |
| HRT FINANCIAL LP 0.03% of their portfolio | 234.4k $5.7m | New |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.00% of their portfolio | 231.3k $5.6m | Reduced -98.7k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 230.6k $5.6m | Reduced -65.7k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 214.1k $5.2m | New |
| HERALD INVESTMENT MANAGEMENT Ltd 0.72% of their portfolio | 200.0k $4.8m | Unchanged |
| ALGERT GLOBAL LLC 0.09% of their portfolio | 171.2k $4.2m | Added +137.9k |
| Informed Momentum Co LLC 0.52% of their portfolio | 141.6k $3.4m | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 134.9k $3.3m | Added +131.9k |
| Metavasi Capital LP 1.35% of their portfolio | 125.0k $3.0m | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 123.5k $3.0m | Added +16.5k |
| OSAIC HOLDINGS, INC. 0.01% of their portfolio | 121.9k $3.0m | Added +118.5k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 117.6k $2.9m | Added +27.1k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 109.0k $2.6m | Added +22.1k |
| CITIGROUP INC 0.00% of their portfolio | 106.4k $2.6m | Added +60.5k |
| BARCLAYS PLC 0.00% of their portfolio | 103.3k $2.5m | Added +46.7k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 98.9k $2.4m | Reduced -15.5k |
| Penserra Capital Management LLC 0.03% of their portfolio | 98.9k $2.4m | New |
| Jump Financial, LLC 0.03% of their portfolio | 95.0k $2.3m | New |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 93.8k $2.3m | Added +26.5k |
| DNB Asset Management AS 0.01% of their portfolio | 92.1k $2.2m | Added +24.5k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 90.3k $2.2m | Added +86.5k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 89.8k $2.2m | Added +8.3k |
| Verition Fund Management LLC 0.01% of their portfolio | 77.9k $1.9m | New |
| Mariner, LLC 0.00% of their portfolio | 77.0k $1.9m | Reduced -504 |
| UBS Group AG 0.00% of their portfolio | 75.1k $1.8m | Reduced -179.4k |
| Gotham Asset Management, LLC 0.01% of their portfolio | 67.8k $1.6m | New |
| Legato Capital Management LLC 0.19% of their portfolio | 64.9k $1.6m | Reduced -152 |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 63.3k $1.5m | Added +11.4k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 62.5k $1.5m | Reduced -3.1k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 50.1k $1.2m | Added +16.8k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.00% of their portfolio | 47.2k $1.1m | New |
| FORA Capital, LLC 0.12% of their portfolio | 45.7k $1.1m | New |
| PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio | 44.0k $1.1m | Added +31.3k |
| Creative Planning 0.00% of their portfolio | 43.0k $1.0m | Added +5.1k |
| 180 WEALTH ADVISORS, LLC 0.14% of their portfolio | 41.0k $994.6k | Added +1.1k |
| Squarepoint Ops LLC 0.00% of their portfolio | 41.0k $994.3k | Reduced -2.2k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 40.4k $979.0k | New |
| SEI INVESTMENTS CO 0.00% of their portfolio | 39.7k $963.3k | New |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 36.9k $893.7k | Added +9.4k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 36.8k $891.8k | New |
| CenterBook Partners LP 0.05% of their portfolio | 33.4k $810.3k | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 32.6k $790.6k | Reduced -1.5k |
| LPL Financial LLC 0.00% of their portfolio | 32.1k $779.2k | Added +8.8k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 31.4k $761.4k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 30.8k $747.9k | Added +2.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 30.1k $730.8k | Reduced -6.6k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 30.1k $730.0k | Added +134 |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 28.9k $701.1k | Added +409 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 27.9k $675.4k | Reduced -493 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.02% of their portfolio | 27.3k $661.5k | Reduced -40.9k |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 27.2k $658.9k | Added +843 |
| CLOUGH CAPITAL PARTNERS L P 0.07% of their portfolio | 27.0k $655.0k | New |
| Hennion & Walsh Asset Management, Inc. 0.03% of their portfolio | 25.7k $623.9k | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 25.4k $616.0k | Added +4.5k |
| MYDA Advisors LLC 0.17% of their portfolio | 25.0k $606.2k | New |
| Bulltick Wealth Management, LLC 0.15% of their portfolio | 25.0k $606.2k | New |
| OMERS ADMINISTRATION Corp 0.00% of their portfolio | 24.5k $594.1k | New |
| Freestone Capital Holdings, LLC 0.02% of their portfolio | 22.4k $543.1k | Unchanged |
| WINTON GROUP Ltd 0.03% of their portfolio | 21.0k $509.1k | New |
| Handelsbanken Fonder AB 0.00% of their portfolio | 20.4k $496.0k | New |
| Man Group plc 0.00% of their portfolio | 20.4k $494.7k | New |
| THOMPSON SIEGEL & WALMSLEY LLC 0.01% of their portfolio | 20.0k $485.0k | New |
| Black Swift Group, LLC 0.10% of their portfolio | 20.0k $485.0k | New |
| CERTUITY, LLC 0.04% of their portfolio | 19.0k $460.6k | Unchanged |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 18.2k $441.8k | Added +1.8k |
| DARK FOREST CAPITAL MANAGEMENT LP 0.02% of their portfolio | 18.1k $440.1k | New |
| CIBC WORLD MARKET INC. 0.00% of their portfolio | 18.1k $438.4k | Reduced -3.7k |
| Counterpoint Mutual Funds LLC 0.04% of their portfolio | 17.4k $421.9k | New |
| ProShare Advisors LLC 0.00% of their portfolio | 16.9k $410.4k | Reduced -2.2k |
| Virtu Financial LLC 0.02% of their portfolio | 15.7k $381.0k | New |
| ExodusPoint Capital Management, LP 0.00% of their portfolio | 15.7k $380.0k | New |
| CWM, LLC 0.00% of their portfolio | 15.6k $379.0k | Added +4.1k |
| NKCFO LLC 0.16% of their portfolio | 15.5k $376.0k | New |
| Pure Financial Advisors, LLC 0.01% of their portfolio | 14.7k $357.2k | New |
| EntryPoint Capital, LLC 0.17% of their portfolio | 14.1k $342.9k | Reduced -8.3k |
| Intrua Financial, LLC 0.05% of their portfolio | 14.1k $340.8k | Added +90 |