Sera Prognostics SERA Institutional Ownership

NASDAQ SERA

$2.01 +0.00 (+0.00%)

As of: Sep 9, 2026 · 9:30 AM EDT

Institutions by Trading Activity

47 Institutions

Increased 13 27.7%

Unchanged 21 44.7%

Reduced 13 27.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

33.79%

▼-6.09 pp QoQ

Shares Held by Institutions

17.06Mn

of 50.48Mn outstanding

▲+0.23% QoQ

Shares Outstanding

50.48Mn

33.42Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▼-10 vs prior quarter

Net Shares Added (QoQ)

+39.68K

accumulated since last quarter

Value of Holdings

$34.45Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Sera Prognostics, Inc. (NASDAQ:SERA) is held by 47 institutional investors per 13F filings through June 2026.

Their combined ownership stood at 33.8% of outstanding shares in June 2026, down from 39.9% in March 2026.
Their total shares held in SERA increased 0.23% from the prior quarter, while the number of investors in Sera Prognostics decreased 16.07% year over year.
Activity in SERA broke down as 13 buyers, 13 sellers, and 21 unchanged among 47 total holders.
The aggregate institutional position in Sera Prognostics amounted to 17.06Mn shares as of June 2026, up by 39.68K shares quarter on quarter, and down 886.78K shares year over year.
BAKER BROS. ADVISORS LP holds the largest position in SERA at 5.5Mn shares as of June 30, 2026, or 10.89% of shares outstanding.
Leading buyers of Sera Prognostics shares for the quarter ending June 2026 were Aberdeen Group plc (202.75K), VANGUARD CAPITAL MANAGEMENT LLC (93.68K), Qube Research & Technologies Ltd (30.95K), BlackRock, Inc. (25.26K), Catalyst Funds Management Pty Ltd (15.33K).
Top sellers of SERA stock for the quarter ending June 2026 included CITADEL ADVISORS LLC (207.5K), Morgan Stanley (54.04K), Barclays Plc (28.79K), Northern Trust Corp (27.94K), MILLENNIUM MANAGEMENT LLC (17.52K).
Per Business Quant data, the top 10 holders of Sera Prognostics for the quarter ending June 2026 are BAKER BROS. ADVISORS LP (5.5Mn), Whetstone Capital Advisors, LLC (3.31Mn), Aberdeen Group plc (2.75Mn), Vivo Capital, LLC (1.65Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.3Mn), CAPTRUST FINANCIAL ADVISORS (535.76K), GEODE CAPITAL MANAGEMENT, LLC (348.97K), BlackRock, Inc. (221.37K), AWM Investment Company, Inc. (207.38K), VANGUARD FIDUCIARY TRUST CO (170.91K).

Form 13F Holdings

47 Institutional Holders

Report period 30 Jun, 2026

Total shares held 17.06Mn

Of outstanding 33.79%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BAKER BROS. ADVISORS LP	0001263508	5,498,170	10.89%	0	0.00%	$10.01Mn
2	Whetstone Capital Advisors, LLC	0001607278	3,306,889	6.55%	0	0.00%	$6.02Mn
3	Aberdeen Group plc	0001716774	2,753,525	5.46%	▲202,750	+7.95%	$5.01Mn
4	Vivo Capital, LLC	0001674712	1,650,440	3.27%	0	0.00%	$3.00Mn
5	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,297,792	2.57%	▲93,677	+7.78%	$2.36Mn
6	CAPTRUST FINANCIAL ADVISORS	0001512024	535,755	1.06%	▼1,006	-0.19%	$975.07K
7	GEODE CAPITAL MANAGEMENT, LLC	0001214717	348,967	0.69%	▼14,650	-4.03%	$635.47K
8	BlackRock, Inc.	0002012383	221,369	0.44%	▲25,264	+12.88%	$402.89K
9	AWM Investment Company, Inc.	0001535264	207,382	0.41%	0	0.00%	$377.44K
10	VANGUARD FIDUCIARY TRUST CO	0000933478	170,908	0.34%	▲1,247	+0.73%	$311.05K
11	State Street Corp	0000093751	124,792	0.25%	0	0.00%	$227.12K
12	MILLENNIUM MANAGEMENT LLC	0001273087	73,986	0.15%	▼17,518	-19.14%	$134.66K
13	Perigon Wealth Management, LLC	0001575239	72,685	0.14%	0	0.00%	$132.29K
14	Northern Trust Corp	0000073124	68,595	0.14%	▼27,940	-28.94%	$124.84K
15	Bank of New York Mellon Corp	0001390777	60,927	0.12%	0	0.00%	$110.89K
16	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0001107261	55,705	0.11%	▲10,000	+21.88%	$101.38K
17	Requisite Capital Management, LLC	0001730573	55,648	0.11%	0	0.00%	$101.28K
18	Morgan Stanley	0000895421	50,972	0.10%	▼54,045	-51.46%	$92.77K
19	Qube Research & Technologies Ltd	0001729829	50,871	0.10%	▲30,954	+155.41%	$92.59K
20	Ballentine Partners, LLC	0001374889	49,664	0.10%	0	0.00%	$90.39K

Showing 1 to 20 of 47 holders