Company · Ownership research

SERA PROGNOSTICS, INC. SERA

CIK 0001534969

Form 4 transactions dated Nov 1, 2023 to Nov 15, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 101 rows; the complete set is available through the API.

Insider filings on file run through Oct 13, 2026.

Insider purchases & sales

Purchased: $0.00
Sold: $6.12M

Nov 1, 2023 – Oct 13, 2026
Available records · partial months are marked ·

202510 of 30 preview events · 101 available in 2025

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 30, 2025	Harrison Robert Gardner Chief Information Officer	Sale10b5-1 footnote	$6.00K 2,000 shares sold	2.30% sold Direct holding	▾
Dec 10, 2025	Lindgardt Zhenya Chief Executive Officer · Director	Sale	$13.75K 4,155 shares sold	0.54% sold Direct holding	▾
Dec 10, 2025	Kearney Paul Chief Data Officer	Sale	$4.02K 1,213 shares sold	0.72% sold Direct holding	▾
Dec 10, 2025	Jackson Benjamin General Counsel	Sale	$2.95K 892 shares sold	0.74% sold Direct holding	▾
Dec 10, 2025	Harrison Robert Gardner Chief Information Officer	Sale	$2.04K 616 shares sold	0.70% sold Direct holding	▾
Dec 10, 2025	Boniface John J. Chief Scientific Officer	Sale	$4.41K 1,332 shares sold	0.88% sold Direct holding	▾
Dec 10, 2025	Aerts Austin Chief Financial Officer	Sale	$2.89K 873 shares sold	0.32% sold Direct holding	▾
Dec 9, 2025	Lindgardt Zhenya Chief Executive Officer · Director	Sale	$85.77K 28,215 shares sold	3.54% sold Direct holding	▾
Dec 9, 2025	Aerts Austin Chief Financial Officer	Sale	$15.91K 5,232 shares sold	1.88% sold Direct holding	▾
Dec 8, 2025	Lawrence Sandra AJ Director	Sale10b5-1 footnote	$4.76K 1,560 shares sold	7.37% sold Direct holding	▾

Showing 30 / 101 record groups in 2025. The complete set is available through the API.

SERA PROGNOSTICS, INC. · SERA

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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 30 of 101 purchase / sale groups and 30 of 40 other groups; the totals and the monthly series cover the whole window.

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