Company · Ownership research

IMPINJ INC PI

CIK 0001114995

Form 4 transactions dated Nov 1, 2023 to Nov 7, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 64 rows; the complete set is available through the API.

Insider filings on file run through Nov 5, 2026.

Some amendments were merged by Akkru's inferred matching; tick "Confirmed merges only" to exclude these rows.

Insider purchases & sales

Purchased: —
Sold: $680.90M

Nov 1, 2023 – Nov 5, 2026
Available records · partial months are marked ·

202610 of 18 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Nov 4, 2026	SYLEBRA CAPITAL LLC Director	Sale	$7.46M 40,500 shares sold	5.58% sold Indirect holding	▾
Nov 3, 2026	SYLEBRA CAPITAL LLC Director	Sale	$9.20M 49,691 shares sold	6.40% sold Indirect holding	▾
Oct 29, 2026	Rao Meera Director	Sale10b5-1 footnote	$348.57K 1,729 shares sold	15.27% sold Direct holding	▾
Sep 21, 2026	Baker Cary CHIEF FINANCIAL OFFICER	Sale10b5-1 footnote	$1.65M 8,892 shares sold	9.96% sold Direct holding	▾
Sep 15, 2026	WASHINGTON MIRON Director	Sale	$138.61K 800 shares sold	15.52% sold Direct holding	▾
Aug 10, 2026	Baker Cary CHIEF FINANCIAL OFFICER	Sale10b5-1 footnote	$264.37K 1,429 shares sold	1.59% sold Direct holding	▾
Jun 9, 2026	SYLEBRA CAPITAL LLC Director	Sale	$2.43M 19,105 shares sold	2.40% sold Indirect holding	▾
Jun 8, 2026	SYLEBRA CAPITAL LLC Director	Sale	$5.87M 45,528 shares sold	5.42% sold Indirect holding	▾
Jun 5, 2026	SYLEBRA CAPITAL LLC Director	Sale	$5.89M 47,479 shares sold	5.35% sold Indirect holding	▾
Jun 4, 2026	SYLEBRA CAPITAL LLC Director	Sale	$4.57M 33,412 shares sold	3.63% sold Indirect holding	▾

Showing 18 / 18 record groups in 2026. The complete set is available through the API.

IMPINJ INC · PI

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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 18 of 18 purchase / sale groups and 30 of 64 other groups; the totals and the monthly series cover the whole window.

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

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Sources, coverage & how to read this data

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.