Seer Ownership | Who Owns Seer?

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Seer Ownership Summary

Seer is owned by 36.91% institutional investors, 10.04% insiders, and 53.05% retail investors. Softbank group is the largest institutional shareholder, holding 8.94% of SEER shares. American Funds SMALLCAP World A is the top mutual fund, with 3.35% of its assets in Seer shares.

SEER Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Seer	36.91%	10.04%	53.05%
Sector	Healthcare Stocks	35.58%	11.87%	52.55%
Industry	Biotech Stocks	35.75%	11.83%	52.41%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Softbank group	5.14M	8.94%	$8.63M
Artal group	4.75M	7.35%	$7.98M
Siren	2.46M	4.28%	$4.13M
Blackrock	2.64M	4.09%	$4.44M
Vanguard group	2.19M	3.88%	$4.00M
Acadian asset management	2.07M	3.61%	$3.48M
Blackrock funding, inc. /de	1.82M	3.17%	$3.06M
Tang capital management	1.34M	2.31%	$2.92M
Renaissance	976.69K	1.70%	$1.64M
Nano cap new millennium growth fund l p	825.00K	1.44%	$1.39M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Aju ib investment	816.38K	5.05%	$1.54M
Nano cap new millennium growth fund l p	825.00K	1.30%	$1.39M
1888 investments	359.14K	0.96%	$603.36K
Peapod lane capital	438.58K	0.60%	$735.88K
Kent lake capital	500.00K	0.38%	$840.00K
Rangeley capital	184.30K	0.30%	$309.63K
Artal group	4.75M	0.20%	$7.98M
Siren	2.46M	0.11%	$4.13M
Tang capital management	1.34M	0.11%	$2.92M
Softbank group	5.14M	0.08%	$8.63M

Top Buyers

Holder	Shares	% Assets	Change
Two sigma investments, lp	511.60K	0.00%	258.95K
Vanguard fiduciary trust	215.53K	0.00%	215.53K
Rangeley capital	184.30K	0.30%	164.30K
Jacobs levy equity management	143.24K	0.00%	104.23K
Algert global	34.98K	0.00%	34.98K

Top Sellers

Holder	Shares	% Assets	Change
Blackrock	2.64M	0.00%	-3.01M
Capital world investors	-	-	-2.06M
Siren	2.46M	0.11%	-1.54M
Fmr	644.00	-	-703.24K
Acuitas investments	-	-	-424.41K

New Positions

Holder	Shares	% Assets	Change	Value
Vanguard fiduciary trust	215.53K	0.00%	215.53K	$362.09K
Algert global	34.98K	0.00%	34.98K	$59.00K
Aqr capital management	17.79K	-	17.79K	$29.88K
Occudo quantitative strategies lp	13.36K	0.00%	13.36K	$26.05K
Vanguard global advisers	12.89K	-	12.89K	$21.65K

Sold Out

Holder	Change
Farther finance advisors	-36.00
Citigroup	-71.00
Srs capital advisors	-90.00
Eagle bay advisors	-100.00
Ronald blue trust	-138.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	56	-11.11%	21,203,235	-13.22%	36	1.96%	19	-5.00%	20	-28.57%
Dec 31, 2025	14	-76.27%	3,880,065	-85.05%	6	0.35%	5	-61.54%	4	-85.19%
Sep 30, 2025	15	-77.94%	4,521,163	-83.63%	7	0.34%	4	-87.50%	4	-80.95%
Jun 30, 2025	68	-	27,613,223	1.58%	47	2.27%	33	65.00%	21	-27.59%
Mar 31, 2025	69	-5.48%	27,542,419	-6.99%	46	1.98%	20	-35.48%	29	31.82%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
American Funds SMALLCAP World A	2.06M	3.35%	-
Vanguard Total Stock Mkt Idx Inv	1.54M	2.80%	-
Vanguard US Total Market Shares ETF	1.59M	2.67%	-
Fidelity OTC	582.50K	1.03%	-
Bridgeway Ultra-Small Company	380.04K	0.69%	-100.00K
Vanguard Institutional Extnd Mkt Idx Tr	378.76K	0.69%	-
BlackRock Advantage Small Cap Core Instl	303.88K	0.55%	-
Invesco FTSE RAFI US 1500 Small-Mid ETF	231.43K	0.39%	-
NT R2000 Value Index Fund - NL	159.61K	0.26%	-13.51K
Vanguard Health Care ETF	151.37K	0.25%	1.64K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 20, 2026	Horn David R.	PRESIDENT & CFO	Sell	$12.35K
Feb 18, 2026	Horn David R.	PRESIDENT & CFO	Sell	$15.45K
Feb 18, 2026	Farokhzad Omid	CEO AND CHAIR	Sell	$48.65K
Nov 19, 2025	Horn David R.	PRESIDENT & CFO	Sell	$13.40K
Nov 19, 2025	Farokhzad Omid	CEO AND CHAIR	Sell	$66.71K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	1
2026 Q1	-	2
2025 Q4	-	2
2025 Q3	-	2
2025 Q2	-	3

SEER Ownership FAQ

Who Owns Seer?

Seer shareholders are primarily institutional investors at 36.91%, followed by 10.04% insiders and 53.05% retail investors. The average institutional ownership in Seer's industry, Biotech Stocks , is 35.75%, which Seer exceeds.

Who owns the most shares of Seer?

Seer’s largest shareholders are Softbank group (5.14M shares, 8.94%), Artal group (4.75M shares, 7.35%), and Siren (2.46M shares, 4.28%). Together, they hold 20.57% of Seer’s total shares outstanding.

Does Blackrock own Seer?

Yes, BlackRock owns 4.09% of Seer, totaling 2.64M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 4.44M$. In the last quarter, BlackRock decreased its holdings by -3.005M shares, a -53.20% change.

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

Aju ib investment is Seer’s biggest shareholder by percentage of total assets invested, with 5.05% of its assets in 816.38K Seer shares, valued at 1.54M$.

Who is the top mutual fund holder of Seer shares?

American Funds SMALLCAP World A is the top mutual fund holder of Seer shares, with 3.35% of its total shares outstanding invested in 2.06M Seer shares.

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