Company · Ownership research

SERA PROGNOSTICS, INC. SERA

CIK 0001534969 · CUSIP 81749D107

Insider tradingInitial holdingsInstitutional holders

Quarter-end disclosures, not live holdings.

This page lists the top 20 of 60 rows by value; the complete set is available through the API.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BAKER BROS. ADVISORS LP CIK 1263508 · View history	$15.23M 5,498,170 shares	0.15%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2025	▾
02	Whetstone Capital Advisors, LLC CIK 1607278 · View history	$10.06M 3,632,371 shares	2.84%	+3.63MNew	SEC filing ↗ Aug 14, 2025	▾
03	Aberdeen Group plc CIK 1716774 · View history	$6.17M 2,227,367 shares	0.01%	+987.37K(+79.60%)Added	SEC filing ↗ Jul 24, 2025	▾
04	Vivo Capital, LLC CIK 1674712 · View history	$4.57M 1,650,440 shares	0.47%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2025	▾
05	VANGUARD GROUP INC CIK 102909 · View history	$3.22M 1,163,182 shares	0.00%	-112.18K(-8.80%)Reduced	SEC filing ↗ Aug 11, 2025	▾
06	AWM Investment Company, Inc. CIK 1535264 · View history	$1.89M 680,931 shares	0.21%	-185.91K(-21.40%)Reduced	SEC filing ↗ Aug 14, 2025	▾
07	CITADEL ADVISORS LLC CIK 1423053 · View history	$1.74M 629,007 shares	0.00%	+1.60K(+0.30%)Added	SEC filing ↗ Aug 14, 2025	▾
08	CAPTRUST FINANCIAL ADVISORS CIK 1512024 · View history	$1.67M 602,277 shares	0.00%	+100.37K(+20.00%)Added	SEC filing ↗ Aug 15, 2025	▾
09	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$837.94K 302,410 shares	0.00%	-331.84K(-52.30%)Reduced	SEC filing ↗ Aug 8, 2025	▾
10	SANDERS MORRIS HARRIS LLC CIK 1053994 · View history	$730.17K 263,600 shares	0.17%	+169.40K(+179.80%)Added	SEC filing ↗ Jul 30, 2025	▾
11	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$511.24K 184,564 shares	0.00%	+163.01K(+756.40%)Added	SEC filing ↗ Aug 14, 2025	▾
12	BlackRock, Inc. CIK 2012383 · View history	$402.42K 145,279 shares	0.00%	-1.39M(-90.60%)Reduced	SEC filing ↗ Aug 12, 2025	▾
13	PERKINS CAPITAL MANAGEMENT INC CIK 884300 · View history	$362.87K 131,000 shares	0.36%	-19.00K(-12.70%)Reduced	SEC filing ↗ Aug 7, 2025	▾
14	STATE STREET CORP CIK 93751 · View history	$336.81K 121,592 shares	0.00%	-350.70K(-74.30%)Reduced	SEC filing ↗ Aug 14, 2025	▾
15	Corient Private Wealth LLC CIK 1948780 · Amended · View history	$277.00K 100,000 shares	0.00%	+42.50K(+73.90%)Added	SEC filing ↗ Sep 26, 2025	▾
16	NORTHERN TRUST CORP CIK 73124 · View history	$253.83K 91,635 shares	0.00%	-173.31K(-65.40%)Reduced	SEC filing ↗ Aug 13, 2025	▾
17	MORGAN STANLEY CIK 895421 · View history	$253.13K 91,382 shares	0.00%	+9.05K(+11.00%)Added	SEC filing ↗ Aug 14, 2025	▾
18	WEALTH ENHANCEMENT ADVISORY SERVICES, LLC CIK 1632972 · View history	$246.90K 99,155 shares	0.00%	+391(+0.40%)Added	SEC filing ↗ Jul 10, 2025	▾
19	Squarepoint Ops LLC CIK 1642575 · Amended · View history	$236.61K 85,420 shares	0.00%	+52.70K(+161.10%)Added	SEC filing ↗ Aug 14, 2025	▾
20	CLIFTONLARSONALLEN WEALTH ADVISORS, LLC CIK 944361 · View history	$218.43K 78,855 shares	0.00%	+78.86KNew	SEC filing ↗ Jul 21, 2025	▾

Showing 20 / 60 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

18,609,483

Not deduplicated across managers

Disclosed value

$51.52M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

SERA PROGNOSTICS, INC. · Q2 2025

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{"action":"holders","cusip":"81749D107","quarter":"2025Q2","type":"positions","page_size":100}

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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.