Ouster, Inc. (OUST) shareholders
OUSTNasdaqGeneral Industrial Machinery & Equipment, NECFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Nov 3, 2026Score 10/30159% above fair value
$33.48−3.12 (-8.52%)
Close on Nov 13, 2026Market cap $2.41BP/E –Yield –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
49.6%
36M of 72M shares
Institutional holders
328
136 new, 30 sold out
Net institutional buying
6M
In Q2 2026
Insider trades, 12 months
3 buys · 69 sales
Net sold $47.60M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 5,421,343 | 8.50% | 13G (passive) amendment | Jun 30, 2026 |
| Vanguard Capital Management | 3,606,687 | 5.00% | 13G (passive) | Sep 30, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of OUST | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,557,143 | 7.71% | $347.43M | +266,768 | 0.01% |
| Vanguard Capital Management LLC | 2,707,939 | 3.76% | $169.30M | +43,556 | 0.00% |
| State Street Corp | 2,052,274 | 2.85% | $128.31M | +419,608 | 0.00% |
| Vanguard Portfolio Management LLC | 1,802,819 | 2.50% | $112.71M | +32,567 | 0.01% |
| Geode Capital Management, LLC | 1,642,981 | 2.28% | $102.74M | +192,873 | 0.01% |
| Morgan Stanley | 1,243,895 | 1.72% | $77.77M | +510,920 | 0.00% |
| Price T Rowe Associates Inc /Md/ | 1,021,353 | 1.42% | $63.86M | +972,980 | 0.01% |
| JPMorgan Chase & Co | 728,688 | 1.01% | $39.55M | +525,247 | 0.00% |
| Exchange Traded Concepts, LLC | 669,170 | 0.93% | $41.84M | +617,065 | 0.19% |
| Penn Capital Management Company, LLC | 656,088 | 0.91% | $41.09M | −313,517 | 2.61% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 612,654 | 0.85% | $37.68M | +95,927 | 0.04% |
| Legal & General Group Plc | 601,815 | 0.83% | $37.63M | +556,405 | 0.01% |
| Renaissance Technologies LLC | 575,900 | 0.80% | $36.01M | +443,300 | 0.05% |
| Northern Trust Corp | 564,023 | 0.78% | $35.26M | +78,148 | 0.00% |
| Oberweis Asset Management Inc/ | 545,810 | 0.76% | $34.12M | New | 0.71% |
| Charles Schwab Investment Management Inc | 533,951 | 0.74% | $33.38M | +45,656 | 0.00% |
| Citadel Advisors LLC | 476,586 | 0.66% | $29.80M | +259,113 | 0.00% |
| Vanguard Fiduciary Trust Co | 452,368 | 0.63% | $28.28M | +36,823 | 0.01% |
| Shannon River Fund Management LLC | 449,264 | 0.62% | $28.09M | New | 2.51% |
| Dimensional Fund Advisors LP | 445,274 | 0.62% | $27.84M | −38,597 | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 328 | 36M | 49.6% | 136 / 96 | 66 / 30 | 11M | 5M |
| Q1 2026 | 227 | 30M | 41.5% | 51 / 96 | 49 / 42 | 10M | 5M |
| Q4 2025 | 223 | 30M | 41.7% | 43 / 81 | 68 / 45 | 4M | 7M |
| Q3 2025 | 229 | 33M | 45.7% | 68 / 72 | 55 / 31 | 10M | 5M |
| Q2 2025 | 192 | 28M | 38.2% | 63 / 64 | 41 / 28 | 7M | 3M |
| Q1 2025 | 158 | 23M | 32.5% | 37 / 56 | 37 / 20 | 3M | 3M |
| Q4 2024 | 144 | 23M | 32.0% | 39 / 65 | 17 / 27 | 5M | 3M |
| Q3 2024 | 134 | 21M | 29.4% | 32 / 46 | 21 / 22 | 7M | 2M |
| Q2 2024 | 126 | 18M | 25.5% | 42 / 28 | 29 / 22 | 9M | 5M |
| Q1 2024 | 106 | 14M | 19.9% | 20 / 32 | 20 / 25 | 2M | 1M |
| Q4 2023 | 111 | 13M | 18.0% | 32 / 35 | 15 / 13 | 4M | 0M |
| Q3 2023 | 93 | 9M | 12.3% | 16 / 24 | 17 / 13 | 4M | 1M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
189 funds held OUST in Q2 2026, 66% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of OUST | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 1,915,767 | 2.66% | $119.77M | 0.01% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 1,631,167 | 2.26% | $101.98M | 0.12% | Jun 30, 2026 |
| Vanguard Information Technology Index Fund | 1,285,001 | 1.78% | $59.17M | 0.03% | May 31, 2026 |
| Vanguard Extended Market Index Fund | 730,580 | 1.01% | $45.68M | 0.05% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund | 685,483 | 0.95% | $26.74M | 0.08% | Jul 31, 2026 |
| ROBO Global Robotics and Automation Index ETF | 653,946 | 0.91% | $25.51M | 1.28% | Jul 31, 2026 |
| T. Rowe Price New Horizons Fund, Inc. | 621,000 | 0.86% | $38.82M | 0.26% | Jun 30, 2026 |
| State Street(R) SPDR(R) S&P Kensho New Economies Composite ETF | 606,768 | 0.84% | $37.94M | 1.33% | Jun 30, 2026 |
| iShares Russell 2000 Growth ETF | 574,961 | 0.80% | $35.95M | 0.23% | Jun 30, 2026 |
| Oberweis Micro-Cap Fund | 528,410 | 0.73% | $33.04M | 2.05% | Jun 30, 2026 |
| Global X Robotics & Artificial Intelligence ETF | 473,564 | 0.66% | $21.81M | 0.58% | May 31, 2026 |
| Strategas Macro Thematic Opportunities ETF | 349,721 | 0.48% | $21.86M | 2.49% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 310,637 | 0.43% | $14.30M | 0.03% | May 31, 2026 |
| JPMorgan Small Cap Growth Fund | 295,857 | 0.41% | $18.50M | 0.71% | Jun 30, 2026 |
| Vanguard Russell 2000 Index Fund | 291,349 | 0.40% | $13.42M | 0.08% | May 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Charles Angus Pacala | President and CEO, Director | 1,041,816 | 1.44% | Sep 16, 2026 |
| Darien Spencer | Chief Operating Officer | 286,999 | 0.40% | Sep 16, 2026 |
| Mark Frichtl | Chief Technology Officer | 318,987 | 0.44% | Sep 16, 2026 |
| Megan Chung | General Counsel and Secretary | 189,291 | 0.26% | Sep 16, 2026 |
| Kenneth P. Gianella | Chief Financial Officer | 245,328 | 0.34% | Sep 16, 2026 |
| Cyrille Jacquemet | Chief Revenue Officer | 105,539 | 0.15% | Sep 16, 2026 |
| Chen Geng | Interim CFO | 68,090 | 0.09% | Mar 25, 2025 |
| Mark Weinswig | Chief Financial Officer | 173,960 | 0.24% | Dec 16, 2024 |
| Susan Heystee | Director | 207,723 | 0.29% | Nov 12, 2026 |
| Stephen A. Skaggs | Director | 56,415 | 0.08% | Nov 10, 2026 |
| Ted L. Tewksbury III | Director | 124,999 | 0.17% | Jun 22, 2026 |
| Phillip Eyler | Director | 20,383 | 0.03% | Jun 22, 2026 |
| Christina Correia | Director | 76,415 | 0.11% | Jun 22, 2026 |
| Ernest E. Maddock | Director | 88,902 | 0.12% | Jun 22, 2026 |
| Virginia Boulet | Director | 228,950 | 0.32% | May 12, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Susan Heystee Director | Nov 10, 2026 | Sale | −7,551 | $37.44 | $282.73K | 33,707 |
| Stephen A. Skaggs Director | Nov 6, 2026 | Sale(10b5-1 plan) | −5,000 | $34.00 | $170.00K | 56,415 |
| Susan Heystee Director | Oct 5, 2026 | Award | +779 | $44.12 | $34.37K | 41,258 |
| Megan Chung General Counsel and Secretary | Sep 14, 2026 | Sale(10b5-1 plan) | −11,484 | $33.96 | $390.00K | 189,291 |
| Darien Spencer Chief Operating Officer | Sep 14, 2026 | Sale(10b5-1 plan) | −12,808 | $33.96 | $434.96K | 286,999 |
| Charles Angus Pacala President and CEO, Director | Sep 14, 2026 | Sale(10b5-1 plan) | −30,385 | $33.96 | $1.03M | 1,041,816 |
| Kenneth P. Gianella Chief Financial Officer | Sep 14, 2026 | Sale(10b5-1 plan) | −15,686 | $33.96 | $532.70K | 245,328 |
| Cyrille Jacquemet Chief Revenue Officer | Sep 14, 2026 | Sale | −8,896 | $33.96 | $302.11K | 105,539 |
| Mark Frichtl Chief Technology Officer | Sep 14, 2026 | Sale(10b5-1 plan) | −18,778 | $33.96 | $637.70K | 318,987 |
| Megan Chung General Counsel and Secretary | Sep 9, 2026 | Gift | −2,084 | – | – | 200,775 |
| Mark Frichtl Chief Technology Officer | Sep 2, 2026 | Gift | −38,745 | – | – | 337,765 |
| Mark Frichtl Chief Technology Officer | Aug 26, 2026 | Option exercise | +100,000 | $14.22 | $1.42M | 376,510 |
| Kenneth P. Gianella Chief Financial Officer | Aug 18, 2026 | Sale(10b5-1 plan) | −17,927 | $44.65 | $800.44K | 283,087 |
| Kenneth P. Gianella Chief Financial Officer | Aug 18, 2026 | Sale(10b5-1 plan) | −13,364 | $45.52 | $608.33K | 269,723 |
| Kenneth P. Gianella Chief Financial Officer | Aug 18, 2026 | Sale(10b5-1 plan) | −8,201 | $46.40 | $380.53K | 261,522 |
| Kenneth P. Gianella Chief Financial Officer | Aug 18, 2026 | Sale(10b5-1 plan) | −508 | $47.09 | $23.92K | 261,014 |
| Stephen A. Skaggs Director | Aug 6, 2026 | Sale(10b5-1 plan) | −3,614 | $45.18 | $163.28K | 61,415 |
| Stephen A. Skaggs Director | Aug 5, 2026 | Sale(10b5-1 plan) | −1,386 | $46.48 | $64.42K | 65,029 |
| Darien Spencer Chief Operating Officer | Aug 4, 2026 | Sale(10b5-1 plan) | −30,000 | $45.00 | $1.35M | 299,807 |
| Susan Heystee Director | Jul 6, 2026 | Award | +660 | $49.83 | $32.89K | 40,479 |
| Ted L. Tewksbury III Director | Jun 22, 2026 | Sale(10b5-1 plan) | −1,695 | $47.00 | $79.67K | 124,999 |
| Ernest E. Maddock Director | Jun 17, 2026 | Award | +4,725 | – | – | 88,902 |
| Christina Correia Director | Jun 17, 2026 | Award | +4,725 | – | – | 76,415 |
| Ted L. Tewksbury III Director | Jun 17, 2026 | Award | +4,725 | – | – | 126,694 |
| Stephen A. Skaggs Director | Jun 17, 2026 | Award | +4,725 | – | – | 66,415 |
| Susan Heystee Director | Jun 17, 2026 | Award | +4,725 | – | – | 39,819 |
| Phillip Eyler Director | Jun 17, 2026 | Award | +4,725 | – | – | 20,383 |
| Kenneth P. Gianella Chief Financial Officer | Jun 12, 2026 | Sale(10b5-1 plan) | −54,337 | $38.82 | $2.11M | 301,014 |
| Darien Spencer Chief Operating Officer | Jun 12, 2026 | Sale(10b5-1 plan) | −12,559 | $38.82 | $487.54K | 329,807 |
| Cyrille Jacquemet Chief Revenue Officer | Jun 12, 2026 | Sale | −8,723 | $38.82 | $338.63K | 114,435 |
| Megan Chung General Counsel and Secretary | Jun 12, 2026 | Sale(10b5-1 plan) | −11,261 | $38.82 | $437.15K | 202,859 |
| Charles Angus Pacala President and CEO, Director | Jun 12, 2026 | Sale(10b5-1 plan) | −29,797 | $38.82 | $1.16M | 1,072,201 |
| Mark Frichtl Chief Technology Officer | Jun 12, 2026 | Sale(10b5-1 plan) | −18,414 | $38.82 | $714.83K | 276,510 |
| Cyrille Jacquemet Chief Revenue Officer | May 26, 2026 | Sale(10b5-1 plan) | −9,433 | $40.00 | $377.32K | 123,158 |
| Darien Spencer Chief Operating Officer | May 26, 2026 | Sale(10b5-1 plan) | −30,000.5 | $45.00 | $1.35M | 342,366 |
| Mark Frichtl Chief Technology Officer | May 26, 2026 | Sale(10b5-1 plan) | −76,582 | $39.94 | $3.06M | 507,415 |
| Mark Frichtl Chief Technology Officer | May 26, 2026 | Sale(10b5-1 plan) | −45,000 | $44.00 | $1.98M | 298,666 |
| Mark Frichtl Chief Technology Officer | May 26, 2026 | Sale(10b5-1 plan) | −45,000 | $43.00 | $1.94M | 343,666 |
| Mark Frichtl Chief Technology Officer | May 26, 2026 | Sale(10b5-1 plan) | −48,191 | $41.99 | $2.02M | 388,666 |
| Mark Frichtl Chief Technology Officer | May 26, 2026 | Sale(10b5-1 plan) | −70,558 | $40.90 | $2.89M | 436,857 |
| Mark Frichtl Chief Technology Officer | May 26, 2026 | Sale(10b5-1 plan) | −3,742 | $45.00 | $168.39K | 294,924 |
| Mark Frichtl Chief Technology Officer | May 26, 2026 | Sale(10b5-1 plan) | −19,669 | $39.16 | $770.24K | 583,997 |
| Mark Frichtl Chief Technology Officer | May 22, 2026 | Option exercise | +50,063 | $14.22 | $711.90K | 679,350 |
| Mark Frichtl Chief Technology Officer | May 22, 2026 | Sale(10b5-1 plan) | −40,000 | $37.16 | $1.49M | 603,666 |
| Mark Frichtl Chief Technology Officer | May 22, 2026 | Sale(10b5-1 plan) | −35,684 | $36.39 | $1.30M | 643,666 |
| Susan Heystee Director | May 21, 2026 | Sale | −9,316 | $34.81 | $324.29K | 35,094 |
| Mark Frichtl Chief Technology Officer | May 15, 2026 | Option exercise | +4,316 | $14.22 | $61.37K | 632,954 |
| Mark Frichtl Chief Technology Officer | May 15, 2026 | Sale(10b5-1 plan) | −4,316 | $36.00 | $155.38K | 628,638 |
| Cyrille Jacquemet Chief Revenue Officer | May 14, 2026 | Sale(10b5-1 plan) | −10,000 | $35.00 | $350.00K | 132,591 |
| Mark Frichtl Chief Technology Officer | May 14, 2026 | Sale(10b5-1 plan) | −40,000 | $35.00 | $1.40M | 628,638 |
| Mark Frichtl Chief Technology Officer | May 14, 2026 | Option exercise | +40,000 | $14.22 | $568.80K | 668,638 |
| Mark Frichtl Chief Technology Officer | May 13, 2026 | Sale(10b5-1 plan) | −2,500 | $33.00 | $82.50K | 674,797 |
| Mark Frichtl Chief Technology Officer | May 13, 2026 | Sale(10b5-1 plan) | −13,659 | $34.00 | $464.41K | 628,638 |
| Mark Frichtl Chief Technology Officer | May 13, 2026 | Sale(10b5-1 plan) | −32,500 | $33.00 | $1.07M | 642,297 |
| Mark Frichtl Chief Technology Officer | May 13, 2026 | Sale(10b5-1 plan) | −35,000 | $32.00 | $1.12M | 677,297 |
| Mark Frichtl Chief Technology Officer | May 13, 2026 | Sale(10b5-1 plan) | −21,341 | $34.00 | $725.59K | 712,297 |
| Mark Frichtl Chief Technology Officer | May 13, 2026 | Option exercise | +21,341 | $14.22 | $303.47K | 733,638 |
| Mark Frichtl Chief Technology Officer | May 13, 2026 | Sale(10b5-1 plan) | −31,434 | $31.09 | $977.28K | 712,297 |
| Mark Frichtl Chief Technology Officer | May 13, 2026 | Option exercise | +31,434 | $2.13 | $66.95K | 743,731 |
| Virginia Boulet Director | May 11, 2026 | Buy | +608 | $25.35 | $15.41K | 228,950 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of float
9.99%
7M shares short
Days to cover
2.8
At 2M shares a day
Change since last report
+8.6%
From 6M shares
Short volume, 20 days
57.5%
Of volume reported to FINRA
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Ouster's stock actually held short. Settlement fails (shares not delivered on time) peaked at 39,582 shares on Sep 28, 2026 over the last 90 days.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Susan Heystee Director | Nov 10, 2026 | 7,551 | $282.73K | Nov 10, 2026 | Restricted Stock |
| Stephen A. Skaggs Director | Nov 6, 2026 | 5,000 | $170.00K | Nov 6, 2026 | Restricted Stock |
| Kenneth P. Gianella Officer | Sep 11, 2026 | 17,002 | $637.40K | Sep 11, 2026 | Restricted stock units awarded under incentive award plan |
| Charles Angus Pacala Officer, Director | Sep 11, 2026 | 32,934 | $1.23M | Sep 11, 2026 | Restricted stock units awarded under incentive award plan |
| Cyrille Jacquemet Officer | Sep 11, 2026 | 9,642 | $361.48K | Sep 11, 2026 | Restricted stock units awarded under incentive award plan |
| Darien Spencer Officer | Sep 11, 2026 | 13,882 | $520.44K | Sep 11, 2026 | Restricted stock units awarded under incentive award plan |
| Megan Chung Officer | Sep 11, 2026 | 12,447 | $466.64K | Sep 11, 2026 | Restricted stock units awarded under incentive award plan |
| Mark Frichtl Officer | Sep 11, 2026 | 20,353 | $763.03K | Sep 11, 2026 | Restricted stock unit awards awarded under incentive award plan |
| Kenneth P. Gianella Officer | Aug 18, 2026 | 40,000 | $1.81M | Aug 18, 2026 | Restricted Stock |
| Stephen A. Skaggs Director | Aug 6, 2026 | 3,614 | $163.28K | Aug 6, 2026 | Restricted Stock |
| Stephen A. Skaggs Director | Aug 5, 2026 | 1,386 | $64.42K | Aug 5, 2026 | Restricted Stock |
| Darien Spencer Officer | Aug 4, 2026 | 30,000 | $1.35M | Aug 4, 2026 | Restricted Stock |
| Theodore Tewksbury Iii Director | Jun 22, 2026 | 1,695 | $79.67K | Jun 22, 2026 | Restricted Stock |
| Mark Frichtl Officer | May 26, 2026 | 268,742 | $9.95M | May 26, 2026 | Founders Shares |
| Darien Spencer Officer | May 26, 2026 | 30,001 | $1.35M | May 26, 2026 | Restricted Stock |
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