Company · Ownership research

Penumbra Inc PEN

CIK 0001321732

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 16, 2026.

Insider purchases & sales

Purchased: $0.00
Sold: $133.64M

Nov 1, 2023 – Oct 16, 2026
Available records · partial months are marked ·

202410 of 29 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 20, 2024	Elsesser Adam CEO and President · Director	Sale10b5-1 footnote	$3.64M 15,000 shares sold	1.76% sold Trust holding	▾
Dec 2, 2024	Roberts Johanna EVP, Gen. Counsel & Secretary	Sale10b5-1 footnote	$146.70K 600 shares sold	0.94% sold Direct holding	▾
Dec 2, 2024	Shiu Lambert Chief Accounting Officer	Sale10b5-1 footnote	$158.93K 654 shares sold	3.16% sold Direct holding	▾
Nov 29, 2024	Shiu Lambert Chief Accounting Officer	Sale10b5-1 footnote	$436.12K 1,798 shares sold	8.00% sold Direct holding	▾
Nov 20, 2024	Elsesser Adam CEO and President · Director	Sale10b5-1 footnote	$3.56M 15,000 shares sold	1.73% sold Trust holding	▾
Nov 18, 2024	Roberts Johanna EVP, Gen. Counsel & Secretary	Sale10b5-1 footnote	$143.84K 600 shares sold	0.93% sold Direct holding	▾
Oct 21, 2024	Elsesser Adam CEO and President · Director	Sale10b5-1 footnote	$3.07M 15,000 shares sold	1.70% sold Trust holding	▾
Oct 2, 2024	Grewal Harpreet Director	Sale10b5-1 footnote	$31.68K 166 shares sold	1.87% sold Direct holding	▾
Oct 1, 2024	Roberts Johanna EVP, Gen. Counsel & Secretary	Sale10b5-1 footnote	$114.46K 600 shares sold	0.98% sold Direct holding	▾
Oct 1, 2024	Kassing Don W. Director	Sale10b5-1 footnote	$32.97K 170 shares sold	16.92% sold Direct holding	▾

Showing 29 / 29 record groups in 2024. The complete set is available through the API.

Penumbra Inc · PEN

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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 29 of 29 purchase / sale groups and 30 of 30 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"PEN","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.