Insider Ledger
Ouster, Inc. (OUST) insider buying and SEC filings
Ouster, Inc. · CIK 1816581
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- General Industrial Machinery & Equipment, NEC
- State of incorporation
- DE
- Fiscal year end
- Dec 31
- Former names
- Ouster, Inc.; Colonnade Acquisition Corp.
Insider activity in the last 12 months
Bought
$178K
Insiders who bought
1
Sold (not marked 10b5-1)
$1.3M
Planned sales (10b5-1)
$46.1M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Sep 14, 2026 | Planned (10b5-1) | Megan Chung (General Counsel and Secretary) sold 11,484 shares at about $33.96 ($390K), marked as a 10b5-1 plan trade. Holdings down 6% to 189,291 shares. | SEC filing Filed Sep 16, 2026 |
| Sep 14, 2026 | Planned (10b5-1) | Darien Spencer (President / COO) sold 12,808 shares at about $33.96 ($435K), marked as a 10b5-1 plan trade. Holdings down 4% to 286,999 shares. | SEC filing Filed Sep 16, 2026 |
| Sep 14, 2026 | Planned (10b5-1) | Charles Angus Pacala (CEO and Director) sold 30,385 shares at about $33.96 ($1.0M), marked as a 10b5-1 plan trade. Holdings down 3% to 1,041,816 shares. | SEC filing Filed Sep 16, 2026 |
| Sep 14, 2026 | Sale | Cyrille Jacquemet (Chief Revenue Officer) sold 8,896 shares at about $33.96 ($302K). Holdings down 8% to 105,539 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 16, 2026 |
| Sep 14, 2026 | Planned (10b5-1) | Kenneth P. Gianella (CFO) sold 15,686 shares at about $33.96 ($533K), marked as a 10b5-1 plan trade. Holdings down 6% to 245,328 shares. | SEC filing Filed Sep 16, 2026 |
| Sep 14, 2026 | Planned (10b5-1) | Mark Frichtl (Chief Technology Officer) sold 18,778 shares at about $33.96 ($638K), marked as a 10b5-1 plan trade. Holdings down 6% to 318,987 shares. | SEC filing Filed Sep 16, 2026 |
| Aug 18, 2026 | Planned (10b5-1) | Kenneth P. Gianella (CFO) sold 40,000 shares at about $45.33 ($1.8M), marked as a 10b5-1 plan trade. Holdings down 13% to 261,014 shares. | SEC filing Filed Aug 19, 2026 |
| Aug 5–6, 2026 | Planned (10b5-1) | Stephen A. Skaggs (Director) sold 5,000 shares between Aug 5 and Aug 6 at about $45.54 ($228K), marked as a 10b5-1 plan trade. Holdings down 8% to 61,415 shares. | SEC filing Filed Aug 7, 2026 |
| Aug 4, 2026 | Planned (10b5-1) | Darien Spencer (President / COO) sold 30,000 shares at $45.00 ($1.4M), marked as a 10b5-1 plan trade. Holdings down 9% to 299,807 shares. | SEC filing Filed Aug 5, 2026 |
| Jun 22, 2026 | Planned (10b5-1) | Ted L Tewksbury III (Director) sold 1,695 shares at $47.00 ($80K), marked as a 10b5-1 plan trade. Holdings down 1% to 124,999 shares. | SEC filing Filed Jun 22, 2026 |
| Jun 12, 2026 | Planned (10b5-1) | Kenneth P. Gianella (CFO) sold 54,337 shares at about $38.82 ($2.1M), marked as a 10b5-1 plan trade. Holdings down 15% to 301,014 shares. | SEC filing Filed Jun 16, 2026 |
| Jun 12, 2026 | Planned (10b5-1) | Charles Angus Pacala (CEO and Director) sold 29,797 shares at about $38.82 ($1.2M), marked as a 10b5-1 plan trade. Holdings down 3% to 1,072,201 shares. | SEC filing Filed Jun 16, 2026 |
| Jun 12, 2026 | Sale | Cyrille Jacquemet (Chief Revenue Officer) sold 8,723 shares at about $38.82 ($339K). Holdings down 7% to 114,435 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 16, 2026 |
| Jun 12, 2026 | Planned (10b5-1) | Darien Spencer (President / COO) sold 12,559 shares at about $38.82 ($488K), marked as a 10b5-1 plan trade. Holdings down 4% to 329,807 shares. | SEC filing Filed Jun 16, 2026 |
| Jun 12, 2026 | Planned (10b5-1) | Megan Chung (General Counsel and Secretary) sold 11,261 shares at about $38.82 ($437K), marked as a 10b5-1 plan trade. Holdings down 5% to 202,859 shares. | SEC filing Filed Jun 16, 2026 |
| Jun 12, 2026 | Planned (10b5-1) | Mark Frichtl (Chief Technology Officer) sold 18,414 shares at about $38.82 ($715K), marked as a 10b5-1 plan trade. Holdings down 6% to 276,510 shares. | SEC filing Filed Jun 16, 2026 |
| May 26, 2026 | Planned (10b5-1) | Cyrille Jacquemet (Chief Revenue Officer) sold 9,433 shares at $40.00 ($377K), marked as a 10b5-1 plan trade. Holdings down 7% to 123,158 shares. | SEC filing Filed May 27, 2026 |
| May 26, 2026 | Planned (10b5-1) | Darien Spencer (President / COO) sold 30,001 shares at about $45.00 ($1.4M), marked as a 10b5-1 plan trade. Holdings down 8% to 342,366 shares. | SEC filing Filed May 27, 2026 |
| May 22–26, 2026 | Planned (10b5-1) | Mark Frichtl (Chief Technology Officer) sold 384,426 shares between May 22 and May 26 at about $40.60 ($15.6M), marked as a 10b5-1 plan trade. Holdings down 57% to 294,924 shares. | SEC filing Filed May 27, 2026 |
| May 21, 2026 | Sale | Susan Heystee (Director) sold 9,316 shares at $34.81 ($324K). Holdings down 21% to 35,094 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 22, 2026 |
| May 14, 2026 | Planned (10b5-1) | Cyrille Jacquemet (Chief Revenue Officer) sold 10,000 shares at $35.00 ($350K), marked as a 10b5-1 plan trade. Holdings down 7% to 132,591 shares. | SEC filing Filed May 21, 2026 |
| May 13–15, 2026 | Planned (10b5-1) | Mark Frichtl (Chief Technology Officer) sold 180,750 shares between May 13 and May 15 at about $33.18 ($6.0M), marked as a 10b5-1 plan trade. Holdings down 22% to 628,638 shares. | SEC filing Filed May 15, 2026 |
| May 11, 2026 | Purchase (code P) | Virginia Boulet (Director) bought 1,658 shares at about $25.23 ($42K), reported as a purchase (code P). Holdings up 1% to 230,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 12, 2026 |
| May 5, 2026 | Planned (10b5-1) | Stephen A. Skaggs (Director) sold 5,000 shares at $30.00 ($150K), marked as a 10b5-1 plan trade. Holdings down 7% to 61,690 shares. | SEC filing Filed May 7, 2026 |
| May 4–5, 2026 | Planned (10b5-1) | Mark Frichtl (Chief Technology Officer) sold 34,600 shares between May 4 and May 5 at about $30.08 ($1.0M), marked as a 10b5-1 plan trade. Holdings down 5% to 712,297 shares. | SEC filing Filed May 6, 2026 |
| Apr 22, 2026 | Planned (10b5-1) | Mark Frichtl (Chief Technology Officer) sold 400 shares at $30.00 ($12K), marked as a 10b5-1 plan trade. Holdings down <1% to 712,297 shares. | SEC filing Filed Apr 23, 2026 |
| Apr 21, 2026 | Planned (10b5-1) | Stephen A. Skaggs (Director) sold 5,000 shares at $28.00 ($140K), marked as a 10b5-1 plan trade. Holdings down 7% to 66,690 shares. | SEC filing Filed Apr 22, 2026 |
| Apr 20–21, 2026 | Planned (10b5-1) | Mark Frichtl (Chief Technology Officer) sold 120,000 shares between Apr 20 and Apr 21 at about $27.57 ($3.3M), marked as a 10b5-1 plan trade. Holdings down 14% to 712,297 shares. | SEC filing Filed Apr 21, 2026 |
| Apr 17, 2026 | Planned (10b5-1) | Mark Frichtl (Chief Technology Officer) sold 30,000 shares at about $25.15 ($755K), marked as a 10b5-1 plan trade. Holdings down 4% to 712,297 shares. | SEC filing Filed Apr 17, 2026 |
| Apr 16, 2026 | Planned (10b5-1) | Megan Chung (General Counsel and Secretary) sold 5,837 shares at $24.70 ($144K), marked as a 10b5-1 plan trade. Holdings down 3% to 213,836 shares. | SEC filing Filed Apr 17, 2026 |
| Apr 14–15, 2026 | Planned (10b5-1) | Mark Frichtl (Chief Technology Officer) sold 60,000 shares between Apr 14 and Apr 15 at about $23.17 ($1.4M), marked as a 10b5-1 plan trade. Holdings down 8% to 712,297 shares. | SEC filing Filed Apr 15, 2026 |
| Mar 25, 2026 | Planned (10b5-1) | Mark Frichtl (Chief Technology Officer) sold 40,000 shares at about $20.94 ($838K), marked as a 10b5-1 plan trade. Holdings down 6% to 636,882 shares. | SEC filing Filed Mar 27, 2026 |
| Mar 19, 2026 | Planned (10b5-1) | Ted L Tewksbury III (Director) sold 1,695 shares at $20.00 ($34K), marked as a 10b5-1 plan trade. Holdings down 1% to 121,969 shares. | SEC filing Filed Mar 23, 2026 |
| Mar 12, 2026 | Planned (10b5-1) | Darien Spencer (President / COO) sold 10,938 shares at about $23.43 ($256K), marked as a 10b5-1 plan trade. Holdings down 3% to 325,250 shares. | SEC filing Filed Mar 16, 2026 |
| Mar 12, 2026 | Planned (10b5-1) | Mark Frichtl (Chief Technology Officer) sold 15,689 shares at about $23.43 ($368K), marked as a 10b5-1 plan trade. Holdings down 2% to 636,882 shares. | SEC filing Filed Mar 16, 2026 |
| Mar 12, 2026 | Planned (10b5-1) | Megan Chung (General Counsel and Secretary) sold 9,593 shares at about $23.43 ($225K), marked as a 10b5-1 plan trade. Holdings down 5% to 173,548 shares. | SEC filing Filed Mar 16, 2026 |
| Mar 12, 2026 | Planned (10b5-1) | Charles Angus Pacala (CEO and Director) sold 24,657 shares at about $23.43 ($578K), marked as a 10b5-1 plan trade. Holdings down 3% to 960,660 shares. | SEC filing Filed Mar 16, 2026 |
| Mar 6, 2026 | Purchase (code P) | Virginia Boulet (Director) bought 6,500 shares at about $20.95 ($136K), reported as a purchase (code P). Holdings up 3% to 228,342 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 9, 2026 |
| Jan 16, 2026 | Planned (10b5-1) | Megan Chung (General Counsel and Secretary) sold 5,837 shares at $27.24 ($159K), marked as a 10b5-1 plan trade. Holdings down 3% to 183,141 shares. | SEC filing Filed Jan 21, 2026 |
| Dec 19, 2025 | Planned (10b5-1) | Ted L Tewksbury III (Director) sold 1,695 shares at $21.47 ($36K), marked as a 10b5-1 plan trade. Holdings down 1% to 123,664 shares. | SEC filing Filed Dec 23, 2025 |
| Dec 12, 2025 | Sale | Susan Heystee (Director) sold 11,650 shares at about $25.03 ($292K). Holdings down 22% to 41,625 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 16, 2025 |
| Dec 12, 2025 | Planned (10b5-1) | Mark Frichtl (Chief Technology Officer) sold 15,661 shares at about $24.98 ($391K), marked as a 10b5-1 plan trade. Holdings down 2% to 652,571 shares. | SEC filing Filed Dec 16, 2025 |
| Dec 12, 2025 | Planned (10b5-1) | Darien Spencer (President / COO) sold 10,919 shares at about $24.98 ($273K), marked as a 10b5-1 plan trade. Holdings down 3% to 336,188 shares. | SEC filing Filed Dec 16, 2025 |
| Dec 12, 2025 | Planned (10b5-1) | Charles Angus Pacala (CEO and Director) sold 24,610 shares at about $24.98 ($615K), marked as a 10b5-1 plan trade. Holdings down 2% to 985,317 shares. | SEC filing Filed Dec 16, 2025 |
| Dec 12, 2025 | Planned (10b5-1) | Megan Chung (General Counsel and Secretary) sold 10,696 shares at about $24.98 ($267K), marked as a 10b5-1 plan trade. Holdings down 5% to 188,978 shares. | SEC filing Filed Dec 16, 2025 |
| Nov 11, 2025 | Planned (10b5-1) | Ted L Tewksbury III (Director) sold 1,695 shares at $25.38 ($43K), marked as a 10b5-1 plan trade. Holdings down 1% to 125,359 shares. | SEC filing Filed Nov 12, 2025 |
27 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
| Filed | Items | Tag | Source |
|---|---|---|---|
| Nov 3, 2026, 4:08 PM ET 8-K | Earnings released (Item 2.02) | SEC filing |
Red flags are objective triggers only: the item or form filed, never an opinion.
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