Company · Ownership research

Ouster, Inc. OUST

CIK 0001816581

Form 4 transactions dated Nov 1, 2023 to Nov 10, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through Oct 7, 2026.

Insider purchases & sales

Purchased: $1.48M
Sold: $53.27M

Nov 1, 2023 – Oct 7, 2026
Available records · partial months are marked ·

2023, from Nov 1, 20237 of 7 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 18, 2023	SPENCER DARIEN Chief Operating Officer	Sale	$1.65K 241 shares sold	0.09% sold Direct holding	▾
Dec 12, 2023	WEINSWIG MARK Chief Financial Officer	Sale	$14.73K 2,462 shares sold	1.37% sold Direct holding	▾
Dec 12, 2023	SPENCER DARIEN Chief Operating Officer	Sale	$22.29K 3,726 shares sold	1.42% sold Direct holding	▾
Dec 12, 2023	Chung Megan General Counsel and Secretary	Sale	$15.33K 2,563 shares sold	2.57% sold Direct holding	▾
Nov 30, 2023	BOULET VIRGINIA Director	Purchase	$52.40K 10,000 shares bought	6.53% added Direct holding	▾
Nov 29, 2023	WEINSWIG MARK Chief Financial Officer	Sale	$2.65K 504 shares sold	0.28% sold Direct holding	▾
Nov 15, 2023	MADDOCK ERNEST E Director	Purchase	$37.01K 7,000 shares bought	17.98% added Direct holding	▾

Showing 7 / 7 record groups in 2023. The complete set is available through the API.

Ouster, Inc. · OUST

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 7 of 7 purchase / sale groups and 0 of 0 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"OUST","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.