Agenus Ownership | Who Owns Agenus?

Overview Forecast RevenueFinancials Chart Transcripts

Agenus Ownership Summary

Agenus is owned by 30.98% institutional investors, 6.68% insiders, and 62.35% retail investors. Vanguard group is the largest institutional shareholder, holding 8.88% of AGEN shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 2.59% of its assets in Agenus shares.

AGEN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Agenus	30.98%	6.68%	62.35%
Sector	Healthcare Stocks	35.58%	11.87%	52.55%
Industry	Biotech Stocks	35.80%	11.85%	52.35%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	2.83M	8.88%	$8.89M
B. riley financial	756.96K	3.51%	$2.07M
Siren	1.06M	3.01%	$3.55M
Marshall wace, llp	688.20K	1.95%	$2.30M
Blackrock funding, inc. /de	545.66K	1.54%	$1.82M
Geode capital management	348.39K	0.99%	$1.16M
Morgan stanley	295.82K	0.84%	$988.04K
Renaissance	285.65K	0.81%	$954.06K
Man group	278.98K	0.79%	$931.79K
Raymond james financial	239.55K	0.68%	$800.11K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
B. riley financial	756.96K	1.73%	$2.07M
Siren	1.06M	0.10%	$3.55M
Post resch tallon group	12.75K	0.04%	$43.74K
Sherbrooke park advisers	16.56K	0.03%	$63.74K
Key client fiduciary advisors	25.27K	0.03%	$84.39K
Susquehanna fundamental investments	62.70K	0.02%	$1.05M
683 capital management	114.34K	0.02%	$381.88K
Values first advisors	11.19K	0.02%	$37.38K
Axq capital, lp	29.05K	0.01%	$97.04K
Msa advisors	10.00K	0.01%	$38.50K

Top Buyers

Holder	Shares	% Assets	Change
B. riley financial	756.96K	1.73%	756.96K
Marshall wace, llp	688.20K	0.00%	541.40K
Vanguard group	2.83M	0.00%	261.20K
Vanguard fiduciary trust	200.50K	0.00%	200.50K
Man group	278.98K	0.00%	164.78K

Top Sellers

Holder	Shares	% Assets	Change
Blackrock	-	-	-29.25M
Artal group	-	-	-15.63M
Bank of america corp /de/	-	-	-1.34M
Gsa capital partners llp	-	-	-1.27M
Nuveen asset management	-	-	-1.15M

New Positions

Holder	Shares	% Assets	Change	Value
B. riley financial	756.96K	1.73%	756.96K	$2.07M
Vanguard fiduciary trust	200.50K	0.00%	200.50K	$669.66K
Susquehanna fundamental investments	62.70K	0.02%	62.70K	$1.05M
Newedge advisors	44.45K	0.00%	44.45K	$171.12K
Hudson bay capital management lp	33.54K	0.00%	33.54K	$112.03K

Sold Out

Holder	Change
Sittner & nelson	-1.00
Front row advisors	-1.00
Metlife investment management	-1.00
Concord wealth partners	-1.00
Signature resources capital management	-1.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	90	-10.89%	9,210,274	-9.03%	30	2.67%	30	-30.23%	29	-12.12%
Dec 31, 2025	56	-39.78%	7,491,561	-14.83%	23	2.40%	21	-53.33%	17	-29.17%
Sep 30, 2025	52	-43.48%	5,767,057	-23.15%	20	2.88%	22	-56.00%	14	-48.15%
Jun 30, 2025	98	7.69%	8,916,095	5.13%	31	2.64%	53	26.19%	28	21.74%
Mar 31, 2025	90	-	8,338,561	0.54%	34	2.30%	42	-	24	14.29%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	654.90K	2.59%	-
Vanguard Total Stock Mkt Idx Inv	1.02M	2.46%	-
Vanguard Strategic Equity Inv	511.81K	1.33%	-
Invesco Dorsey Wright SmallCap Momt ETF	234.92K	1.09%	-
Vanguard Institutional Extnd Mkt Idx Tr	386.79K	0.93%	-
Fidelity Small Cap Index	240.65K	0.88%	-2.96K
Vanguard Explorer Inv	290.65K	0.76%	-
State St Russell Sm/Mid Cp® Indx NL Cl C	176.67K	0.65%	-
State St Russell Sm/Mid Cp® Indx SL Cl I	176.67K	0.64%	-
iShares Russell 2000 Value ETF	157.13K	0.57%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Feb 15, 2024	ARMEN GARO H	See Remarks	Buy	$324.05K
Nov 15, 2023	WIINBERG ULF	-	Buy	$19.00K
Jan 06, 2022	O'Day Steven J	Chief Medical Officer	Sell	$118.35K
Sep 13, 2021	ARMEN GARO H	Chairman and CEO	Sell	$533.70K
Sep 10, 2021	KLASKIN CHRISTINE M	PFO & PAO	Sell	$72.28K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	-
2026 Q1	-	-
2025 Q4	-	-
2025 Q3	-	-
2025 Q2	-	-

AGEN Ownership FAQ

Who Owns Agenus?

Agenus shareholders are primarily institutional investors at 30.98%, followed by 6.68% insiders and 62.34% retail investors. The average institutional ownership in Agenus's industry, Biotech Stocks , is 35.80%, which Agenus falls below.

Who owns the most shares of Agenus?

Agenus’s largest shareholders are Vanguard group (2.83M shares, 8.88%), B. riley financial (756.96K shares, 3.51%), and Siren (1.06M shares, 3.01%). Together, they hold 15.40% of Agenus’s total shares outstanding.

Does Blackrock own Agenus?

BlackRock is not among the top 10 institutional shareholders of Agenus.

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

B. riley financial is Agenus’s biggest shareholder by percentage of total assets invested, with 1.73% of its assets in 756.96K Agenus shares, valued at 2.07M$.

Who is the top mutual fund holder of Agenus shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Agenus shares, with 2.59% of its total shares outstanding invested in 654.9K Agenus shares.

Try Tickergate Pro Free

Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)

Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis

Discover trending investment themes
Find your next best investment
Research stocks using tools