Ouster, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Tewksbury Ted L III | — | Sale | 1,695 | $21.47 | $36,392 | 123,664 | Dec 19, 2025 |
| Heystee Susan | — | Sale | 11,650 | $25.03 | $291,600 | 41,625 | Dec 12, 2025 |
| Frichtl Mark | Chief Technology Officer | Sale | 15,661 | $24.98 | $391,212 | 652,571 | Dec 12, 2025 |
| SPENCER DARIEN | Chief Operating Officer | Sale | 10,919 | $24.98 | $272,757 | 336,188 | Dec 12, 2025 |
| Pacala Charles Angus | President and CEO | Sale | 24,610 | $24.98 | $614,758 | 985,317 | Dec 12, 2025 |
| Chung Megan | General Counsel and Secretary | Sale | 10,696 | $24.98 | $267,186 | 188,978 | Dec 12, 2025 |
| Eyler Phillip | — | Award / Grant | 3,975 | — | — | 15,658 | Dec 8, 2025 |
| Tewksbury Ted L III | — | Sale | 1,695 | $25.38 | $43,019 | 125,359 | Nov 11, 2025 |
| Chung Megan | General Counsel and Secretary | Sale | 5,837 | $31.02 | $181,058 | 197,199 | Oct 17, 2025 |
| Heystee Susan | — | Award / Grant | 1,010 | $32.43 | $32,754 | 53,275 | Oct 6, 2025 |
| SPENCER DARIEN | Chief Operating Officer | Sale | 18,274 | $28.46 | $520,078 | 346,132 | Sep 12, 2025 |
| Frichtl Mark | Chief Technology Officer | Sale | 25,329 | $28.46 | $720,863 | 665,403 | Sep 12, 2025 |
| Pacala Charles Angus | President and CEO | Sale | 37,992 | $28.46 | $1,081,252 | 1,009,927 | Sep 12, 2025 |
| Chung Megan | General Counsel and Secretary | Sale | 17,183 | $28.46 | $489,028 | 203,036 | Sep 12, 2025 |
| Heystee Susan | — | Sale | 40,390 | $30.00 | $1,211,688 | 52,265 | Aug 13, 2025 |
| Heystee Susan | — | Award / Grant | 1,712 | $22.42 | $38,383 | 92,654 | Jul 7, 2025 |
| MADDOCK ERNEST E | — | Award / Grant | 13,558 | — | — | 82,677 | Jun 18, 2025 |
| Tewksbury Ted L III | — | Award / Grant | 13,558 | — | — | 127,054 | Jun 18, 2025 |
| Correia Christina | — | Award / Grant | 13,558 | — | — | 71,690 | Jun 18, 2025 |
| BOULET VIRGINIA | — | Award / Grant | 13,558 | — | — | 221,842 | Jun 18, 2025 |
| SKAGGS STEPHEN A | — | Award / Grant | 13,558 | — | — | 71,690 | Jun 18, 2025 |
| Heystee Susan | — | Award / Grant | 13,558 | — | — | 90,942 | Jun 18, 2025 |
| Chung Megan | General Counsel and Secretary | Sale | 2,828 | $18.76 | $53,053 | 220,219 | Jun 12, 2025 |
| SPENCER DARIEN | Chief Operating Officer | Sale | 3,226 | $18.76 | $60,520 | 364,406 | Jun 12, 2025 |
| Gianella Kenneth P. | Chief Financial Officer | Award / Grant | 300,000 | — | — | 300,000 | May 19, 2025 |
| Heystee Susan | — | Disposition | 45,019 | $11.20 | $504,209 | 77,384 | May 13, 2025 |
| Heystee Susan | — | Award / Grant | 3,629 | $7.43 | $26,963 | 122,403 | Apr 7, 2025 |
| Frichtl Mark | Chief Technology Officer | Award / Grant | 175,000 | — | — | 688,121 | Apr 1, 2025 |
| Pacala Charles Angus | President and CEO | Award / Grant | 275,000 | — | — | 1,044,957 | Mar 31, 2025 |
| Chung Megan | General Counsel and Secretary | Sale | 5,800 | $11.24 | $65,194 | 220,762 | Mar 26, 2025 |
| SPENCER DARIEN | Chief Operating Officer | Award / Grant | 80,000 | — | — | 366,732 | Mar 21, 2025 |
| Geng Chen | Interim CFO | Award / Grant | 30,000 | — | — | 68,090 | Mar 21, 2025 |
| Chung Megan | General Counsel and Secretary | Award / Grant | 80,000 | — | — | 226,562 | Mar 21, 2025 |
| SPENCER DARIEN | Chief Operating Officer | Sale | 249 | $8.02 | $1,997 | 286,732 | Mar 17, 2025 |
| Geng Chen | Interim CFO | Sale | 3,050 | $7.63 | $23,272 | 38,090 | Mar 12, 2025 |
| Chung Megan | General Counsel and Secretary | Sale | 3,085 | $7.63 | $23,539 | 146,562 | Mar 12, 2025 |
| SPENCER DARIEN | Chief Operating Officer | Sale | 4,489 | $7.63 | $34,251 | 286,981 | Mar 12, 2025 |
| Heystee Susan | — | Award / Grant | 2,960 | — | — | 118,774 | Jan 6, 2025 |
| SPENCER DARIEN | Chief Operating Officer | Sale | 248 | $9.08 | $2,252 | 291,470 | Dec 16, 2024 |
| Chung Megan | General Counsel and Secretary | Sale | 13,671 | $9.69 | $132,472 | 149,647 | Dec 12, 2024 |
| WEINSWIG MARK | Chief Financial Officer | Sale | 19,712 | $9.69 | $191,009 | 173,960 | Dec 12, 2024 |
| Frichtl Mark | Chief Technology Officer | Purchase | 4,545 | $9.78 | $44,450 | 512,621 | Dec 12, 2024 |
| Pacala Charles Angus | President and CEO | Purchase | 45,454 | $9.82 | $446,358 | 764,457 | Dec 12, 2024 |
| SPENCER DARIEN | Chief Operating Officer | Sale | 14,869 | $9.69 | $144,081 | 291,718 | Dec 12, 2024 |
| WEINSWIG MARK | Chief Financial Officer | Sale | 518 | $9.70 | $5,025 | 193,672 | Nov 29, 2024 |
| WEINSWIG MARK | Chief Financial Officer | Sale | 24,220 | $8.73 | $211,441 | 205,827 | Nov 20, 2024 |
| SKAGGS STEPHEN A | — | Award / Grant | 14,759 | — | — | 58,132 | Nov 4, 2024 |
| Correia Christina | — | Award / Grant | 14,759 | — | — | 58,132 | Nov 4, 2024 |
| Radstrom Karin | — | Award / Grant | 1,633 | $6.45 | $10,533 | 60,148 | Oct 7, 2024 |
| Heystee Susan | — | Award / Grant | 4,847 | $6.45 | $31,263 | 115,814 | Oct 7, 2024 |