Every Form 4 that Ouster Inc (OUSTW) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow OUSTW and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full OUSTW filings page.
Ouster, Inc. Chief Revenue Officer Cyrille Jacquemet reported an open-market sale of 9,433 shares of Common Stock at $40.00 per share. The transaction was executed pursuant to a pre-arranged Rule 10b5-1 plan dated June 13, 2025, indicating it was scheduled in advance. Following this sale, Jacquemet continues to hold 123,157.5 shares directly, so the trade reflects only a portion of his overall stake.
Ouster, Inc. Chief Technology Officer Mark Frichtl reported a combination of option exercise and open-market share sales in the company’s common stock. On May 22, 2026, he exercised 50,063 non-qualified stock options at an exercise price of $14.22 per share, converting them into common stock.
Across May 22 and May 26, 2026, he then sold an aggregate of 384,426 shares of common stock in a series of open-market transactions at weighted-average prices generally ranging from about $36.00 to $45.00 per share. The filing states these sales were made pursuant to a pre-arranged Rule 10b5-1 trading plan dated December 15, 2025.
After these transactions, Frichtl directly held 294,924 shares of Ouster common stock, including 649 shares acquired on May 15, 2026 under the company’s Amended and Restated 2022 Employee Stock Purchase Plan. The options exercised in this transaction are described as fully vested and exercisable.
Ouster, Inc. Chief Operating Officer Darien Spencer reported an open-market sale of 30,000.5 shares of common stock on May 26, 2026 at a weighted average price of $45.00 per share. The sale was made pursuant to a pre-established Rule 10b5-1 trading plan dated November 18, 2025, indicating it was pre-scheduled rather than discretionary.
After this transaction, Spencer directly holds 342,365.5 shares of Ouster common stock. This balance includes 991 shares acquired on May 15, 2026 through the company’s Amended and Restated 2022 Employee Stock Purchase Plan, so he retains a substantial equity stake following the sale.
Ouster, Inc. director Susan Heystee reported an open-market sale of Common Stock. She sold 9,316 shares on May 21, 2026 at an average price of $34.805 per share. After this transaction, she directly holds 35,093.7 shares of Ouster common stock.
Ouster, Inc. Chief Revenue Officer Cyrille Jacquemet reported an open-market sale of company stock. On this Form 4, he sold 10,000 shares of Ouster common stock at a price of $35.00 per share. The transaction was executed as an open-market sale.
After this sale, Jacquemet directly holds 132,590.5 shares of Ouster common stock, which includes 616 shares acquired on May 15, 2026 through the company’s Amended and Restated 2022 Employee Stock Purchase Plan. The filing notes that the sale was conducted under a pre-arranged Rule 10b5-1 trading plan.
Ouster, Inc. Chief Technology Officer Mark Frichtl reported a series of exercise-and-sell transactions in May 2026. Over May 13–15, he sold a total of 180,750 shares of common stock in open-market trades at prices generally between $31.00 and $36.02, pursuant to a Rule 10b5-1 plan dated December 15, 2025.
To support these sales, he exercised stock options covering 97,091 shares of common stock at exercise prices of $2.13 and $14.22 per share. Following the transactions, he holds 628,638 shares of common stock directly.
Ouster, Inc. director Virginia Boulet reported buying additional common stock in open-market transactions. On May 11, 2026, she purchased a total of 1,658 shares of Ouster common stock in two trades at prices of $25.16 and $25.35 per share. Following these purchases, Boulet directly holds 230,000 shares of Ouster common stock.
Ouster, Inc. director Stephen A. Skaggs sold 5,000 shares of Common Stock in an open-market transaction at $30.00 per share. The sale occurred on May 5, 2026 and was made pursuant to a pre-arranged Rule 10b5-1 trading plan dated September 8, 2025.
After this transaction, Skaggs directly holds 61,690 Ouster shares, so the sale represents only a portion of his overall position rather than a full exit.
Ouster, Inc. Chief Technology Officer Mark Frichtl reported an exercise-and-sell transaction involving company stock. He exercised options to acquire 34,600 shares of Common Stock at about $2.13 per share, then sold the same 34,600 shares in open‑market trades at prices around $30 per share.
The sales were made pursuant to a pre‑arranged Rule 10b5‑1 trading plan dated December 15, 2025, indicating they were scheduled in advance. After these transactions, he holds 712,297 Common Shares directly and 31,434 Non‑Qualified Stock Options that are fully vested and exercisable.
Ouster, Inc. Chief Technology Officer Mark Frichtl reported an option exercise and related share sale. He exercised non-qualified stock options for 400 shares of common stock at $2.13 per share, then sold 400 shares at $30.00 per share.
The filing shows the sale was made pursuant to a Rule 10b5-1 trading plan dated December 15, 2025, indicating it was pre-scheduled. After these transactions, he directly holds 712,297 shares of common stock and 66,034 stock options that are fully vested and exercisable, with the exercised option series expiring on October 1, 2030.
Ouster, Inc. director Stephen A. Skaggs sold 5,000 shares of Common Stock in an open-market transaction at $28.00 per share. After this sale, he directly holds 66,690 shares. The transaction was executed pursuant to a pre-arranged Rule 10b5-1 trading plan dated September 8, 2025.
Ouster, Inc. Chief Technology Officer Mark Frichtl executed an exercise-and-sell transaction in company stock. On April 20 and 21, 2026, he exercised options to acquire a total of 120,000 shares of Ouster common stock at an exercise price of $2.13 per share and sold 120,000 shares in open-market transactions.
The sales were made at weighted average prices ranging from about $26.08 to $29.02 per share, with individual trades occurring within price ranges from $26.00 to $29.25. These sales were conducted under a pre-arranged Rule 10b5-1 trading plan dated December 15, 2025, indicating they were scheduled in advance rather than timed discretionarily.
After these transactions, Frichtl directly holds 712,297 shares of Ouster common stock, reflecting that he retained a substantial equity stake in the company following the option exercises and related sales.
Ouster, Inc. Chief Technology Officer Mark Frichtl exercised and sold shares in a planned transaction. On April 17, 2026, he exercised a non-qualified stock option to acquire 30,000 shares of common stock at $2.13 per share, from options that were fully vested and exercisable.
He then sold 30,000 common shares in open-market transactions at a weighted average price of $25.1465 per share, pursuant to a Rule 10b5-1 trading plan dated December 15, 2025. After these transactions, he directly holds 712,297 common shares of Ouster.
Ouster, Inc. Chief Technology Officer Mark Frichtl exercised stock options and sold shares in pre-planned transactions. On April 14–15, he exercised options for 60,000 shares of common stock at an exercise price of $2.13 per share and received common shares.
Over the same dates, he sold 60,000 common shares in open‑market trades at weighted average prices of $22.7562 and $24.00 per share, pursuant to a Rule 10b5-1 plan dated December 15, 2025 that includes sales for tax planning purposes. After these transactions, he directly holds 712,297 shares of Ouster common stock.
SPENCER DARIEN reported acquisition or exercise transactions in this Form 4 filing.
Ouster, Inc.’s Chief Operating Officer Darien Spencer received an equity award of 46,125 restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Ouster common stock at no purchase price.
The RSUs vest in equal quarterly installments, with 1/12 of the total units vesting on each quarterly anniversary of March 11, 2026, as long as Spencer remains in service through each vesting date. Following this grant, he holds 371,375 shares of common stock directly, including the shares underlying these RSUs. The RSUs have no expiration date and reflect compensation rather than an open-market stock purchase.
Pacala Charles Angus reported acquisition or exercise transactions in this Form 4 filing.
Ouster, Inc. President and CEO Charles Angus Pacala received an equity grant of 138,376 restricted stock units (RSUs). Each RSU represents one share of common stock and vests in 12 equal quarterly installments starting on March 11, 2026, contingent on continued service. Following this award, he directly holds 1,099,036 shares of common stock, highlighting a significant portion of compensation tied to future company performance rather than cash.
Ouster, Inc. Chief Financial Officer Kenneth P. Gianella reported an acquisition of 55,351 restricted stock units of common stock as a compensation award. Each RSU equals one share and vests in 12 equal quarterly installments starting from March 11, 2026, contingent on continued service, bringing his direct holdings to 355,351 shares.
Ouster, Inc. reported that its General Counsel and Secretary, Megan Chung, acquired 46,125 shares of common stock through a grant of restricted stock units (RSUs). Each RSU represents a right to receive one share of common stock, bringing her direct holdings to 219,673 shares after this award.
The RSUs vest in equal installments, with 1/12 of the total vesting on each quarterly anniversary of March 11, 2026, as long as she continues serving the company on each vesting date. The RSUs do not have an expiration date, indicating a long-term, service-based compensation structure rather than an open-market purchase or sale.
Frichtl Mark reported acquisition or exercise transactions in this Form 4 filing.
Ouster, Inc. Chief Technology Officer Mark Frichtl received a grant of 75,415 restricted stock units of common stock as equity compensation. The RSUs vest in 12 equal quarterly installments beginning on March 11, 2026, contingent on his continued service. Following this award, he holds 712,297 shares of common stock directly.
Ouster, Inc. Chief Operating Officer Darien Spencer reported an open-market sale of 10,938 shares of common stock on March 12, 2026 at a weighted average price of $23.4328 per share. According to the disclosure, the shares were sold to cover withholding taxes triggered by the vesting and settlement of restricted stock units, under a Rule 10b5-1 “sale to cover” instruction dated August 19, 2025. Following this tax-related sale, Spencer directly holds 325,250 shares of Ouster common stock.
Ouster, Inc. Chief Technology Officer Mark Frichtl reported an open-market sale of 15,689 shares of common stock on March 12, 2026 at a weighted average price of $23.4328 per share. According to the footnotes, the shares were sold to cover withholding taxes upon the vesting and settlement of restricted stock units pursuant to a Rule 10b5-1 sale-to-cover instruction letter dated June 9, 2025. Following this tax-related sale, Frichtl directly holds 636,882 shares of Ouster common stock.
Ouster, Inc. reported that its General Counsel and Secretary, Megan Chung, sold 9,593 shares of common stock on March 12, 2026 at a weighted average price of $23.4324 per share. According to the disclosure, these shares were sold solely to cover withholding taxes due upon the vesting and settlement of restricted stock units, pursuant to a Rule 10b5-1 sale-to-cover instruction letter dated August 20, 2025. After this tax-related sale, Chung directly holds 173,548 shares of Ouster common stock.
Ouster, Inc. President and CEO Charles Angus Pacala reported an open-market sale of 24,657 shares of Common Stock at a weighted average price of $23.4274 per share. According to the footnotes, the shares were sold to cover withholding taxes upon the vesting and settlement of restricted stock units under a Rule 10b5-1 sale-to-cover instruction. Following this transaction, he directly holds 960,660 shares of Ouster common stock.
Ouster, Inc. director Virginia Boulet bought 6,500 shares of common stock in an open‑market transaction on March 6, 2026. The weighted average purchase price was 20.95 per share, with trades ranging from 20.92 to 20.95. Following this purchase, she directly owns 228,342 shares.
Ouster, Inc. officer Megan Chung, who serves as General Counsel and Secretary, reported selling 5,837 shares of Ouster common stock on January 16, 2026 at a price of $27.24 per share. After this transaction, she beneficially owned 183,141 shares of Ouster common stock in direct form. The filing notes that the sale transactions were made primarily for tax planning purposes and that all sales were executed under a pre-arranged Rule 10b5-1 trading plan dated June 4, 2025.