Sera Prognostics Ownership | Who Owns Sera Prognostics?

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Sera Prognostics Ownership Summary

Sera Prognostics is owned by 37.93% institutional investors, 10.87% insiders, and 51.21% retail investors. Baker bros. advisors lp is the largest institutional shareholder, holding 11.21% of SERA shares. abrdn Healthcare Investors is the top mutual fund, with 3.01% of its assets in Sera Prognostics shares.

SERA Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Sera Prognostics	37.93%	10.87%	51.21%
Sector	Healthcare Stocks	487.91%	11.08%	-398.99%
Industry	Diagnostics & Research Stocks	57.29%	10.84%	31.88%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Baker bros. advisors lp	5.50M	11.21%	$15.23M
Whetstone capital advisors	3.63M	7.40%	$10.06M
Abrdn	2.23M	4.54%	$6.17M
Blackrock	1.41M	4.38%	$8.35M
Vanguard group	1.25M	3.74%	$10.20M
Vivo capital	1.65M	3.36%	$4.57M
Jpmorgan chase	775.87K	2.31%	$6.32M
Geode capital management	599.70K	1.79%	$4.88M
Awm investment company	680.93K	1.39%	$1.89M
Captrust financial advisors	602.28K	1.23%	$1.67M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Whetstone capital advisors	3.63M	2.84%	$10.06M
Vivo capital	1.65M	0.47%	$4.57M
Awm investment company	680.93K	0.21%	$1.89M
Baker bros. advisors lp	5.50M	0.15%	$15.23M
Sanders morris harris	263.60K	0.11%	$806.62K
Requisite capital management	55.65K	0.03%	$154.15K
Twelve points wealth management	43.39K	0.03%	$132.77K
Bridgeway capital management	87.81K	0.02%	$714.73K
Abel hall	11.04K	0.01%	$30.57K
Abrdn	2.23M	0.01%	$6.17M

Top Buyers

Holder	Shares	% Assets	Change
Whetstone capital advisors	3.63M	2.84%	3.63M
Blackrock	1.41M	0.00%	1.29M
Abrdn	2.23M	0.01%	987.37K
State street	390.61K	0.00%	315.52K
Captrust financial advisors	602.28K	0.00%	100.37K

Top Sellers

Holder	Shares	% Assets	Change
Ra capital management	-	-	-3.03M
Blackrock funding, inc. /de	145.28K	-	-1.39M
Awm investment company	680.93K	0.21%	-185.91K
Perkins capital management	-	-	-131.00K
Jpmorgan chase	775.87K	0.00%	-109.00K

New Positions

Holder	Shares	% Assets	Change	Value
Whetstone capital advisors	3.63M	2.84%	3.63M	$10.06M
Acadian asset management	37.38K	0.00%	37.38K	$102.00K
Qube research	33.38K	0.00%	33.38K	$92.47K
Wellington management group llp	27.68K	-	27.68K	$163.88K
Birch hill investment advisors	27.29K	0.00%	27.29K	$83.52K

Sold Out

Holder	Change
Sterling capital management	-28.00
Gamma investing	-40.00
Ronald blue trust	-90.00
Rise advisors	-172.00
Federated hermes	-231.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	58	-18.31%	18,609,445	-7.56%	37	1.65%	27	-18.18%	24	26.32%
Mar 31, 2025	72	-7.69%	20,231,380	11.75%	48	1.65%	34	-27.66%	19	46.15%
Dec 31, 2024	74	23.33%	16,911,303	-6.01%	50	1.75%	43	43.33%	13	8.33%
Sep 30, 2024	60	-10.45%	17,992,458	8.53%	53	2.03%	30	-31.82%	12	-14.29%
Jun 30, 2024	67	28.85%	16,578,359	15.04%	51	2.41%	44	22.22%	14	100.00%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
abrdn Healthcare Investors	1.15M	3.01%	52.33K
abrdn Healthcare Opportunities	1.13M	2.98%	-
Vanguard Total Stock Mkt Idx Inv	744.38K	1.96%	-16.44K
Invesco Dorsey Wright SmallCap Momt ETF	603.77K	1.79%	1.09K
iShares Russell 2000 ETF	671.86K	1.78%	-
abrdn Healthcare Opportunities Fund	640.00K	1.70%	151.54K
Fidelity Small Cap Index	288.83K	0.77%	-
Vanguard Institutional Extnd Mkt Idx Tr	278.89K	0.73%	-86.97K
iShares Russell 2000 Growth ETF	236.00K	0.63%	-
JPMorgan US Small Company L	199.43K	0.53%	-77.13K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Nov 04, 2025	Harrison Robert Gardner	Chief Information Officer	Sell	$6.14K
Oct 07, 2025	Harrison Robert Gardner	Chief Information Officer	Sell	$6.36K
Oct 06, 2025	Mirza Mansoor Raza	-	Sell	$717.32
Sep 11, 2025	Lindgardt Zhenya	Chief Executive Officer	Sell	$10.16K
Sep 11, 2025	Kearney Paul	Chief Data Officer	Sell	$3.98K

Insider Transactions Trends

Date	Buy	Sell
2025 Q4	-	3
2025 Q3	-	23
2025 Q2	-	17
2025 Q1	-	42
2024 Q4	-	11

SERA Ownership FAQ

Who Owns Sera Prognostics?

Sera Prognostics shareholders are primarily institutional investors at 37.93%, followed by 10.87% insiders and 51.20% retail investors. The average institutional ownership in Sera Prognostics's industry, Diagnostics & Research Stocks, is 57.29%, which Sera Prognostics falls below.

Who owns the most shares of Sera Prognostics?

Sera Prognostics’s largest shareholders are Baker bros. advisors lp (5.5M shares, 11.21%), Whetstone capital advisors (3.63M shares, 7.40%), and Abrdn (2.23M shares, 4.54%). Together, they hold 23.15% of Sera Prognostics’s total shares outstanding.

Does Blackrock own Sera Prognostics?

Yes, BlackRock owns 4.38% of Sera Prognostics, totaling 1.41M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 8.35M$. In the last quarter, BlackRock increased its holdings by 1.29M shares, a 1085.12% change.

Who is Sera Prognostics’s biggest shareholder by percentage of total assets invested?

Whetstone capital advisors is Sera Prognostics’s biggest shareholder by percentage of total assets invested, with 2.84% of its assets in 3.63M Sera Prognostics shares, valued at 10.06M$.

Who is the top mutual fund holder of Sera Prognostics shares?

abrdn Healthcare Investors is the top mutual fund holder of Sera Prognostics shares, with 3.01% of its total shares outstanding invested in 1.15M Sera Prognostics shares.

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