Agenus Ownership | Who Owns Agenus?

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Agenus Ownership Summary

Agenus is owned by 31.71% institutional investors, 1.68% insiders, and 66.61% retail investors. Vanguard group is the largest institutional shareholder, holding 11.18% 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	31.71%	1.68%	66.61%
Sector	Healthcare Stocks	488.17%	11.08%	-399.26%
Industry	Biotech Stocks	306.59%	11.10%	-217.69%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	2.41M	11.18%	$6.60M
Siren	1.06M	3.79%	$4.86M
B. riley financial	756.96K	3.51%	$2.07M
State street	486.72K	2.26%	$1.33M
Geode capital management	475.59K	2.21%	$1.30M
Blackrock funding, inc. /de	504.09K	1.79%	$2.30M
Marshall wace, llp	432.48K	1.54%	$1.98M
Walleye capital	198.29K	0.71%	$906.18K
Goldman sachs group	135.93K	0.63%	$372.46K
Susquehanna group, llp	129.16K	0.60%	$353.90K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
B. riley financial	756.96K	1.73%	$2.07M
Siren	1.06M	0.25%	$4.86M
Key client fiduciary advisors	39.53K	0.07%	$180.67K
Values first advisors	13.58K	0.03%	$62.07K
Ovata capital management	32.00K	0.03%	$146.24K
Susquehanna fundamental investments	62.70K	0.02%	$1.05M
Point72 asia (singapore) pte.	16.29K	0.01%	$74.46K
Avestar capital	41.00K	0.01%	$187.37K
Susquehanna portfolio strategies	122.29K	0.01%	$558.86K
Msa advisors	10.00K	0.01%	$45.70K

Top Buyers

Holder	Shares	% Assets	Change
B. riley financial	756.96K	1.73%	756.96K
Siren	1.06M	0.25%	564.25K
Marshall wace, llp	432.48K	0.00%	432.48K
Walleye capital	198.29K	0.00%	198.29K
Susquehanna portfolio strategies	122.29K	0.01%	122.29K

Top Sellers

Holder	Shares	% Assets	Change
Blackrock	-	-	-29.25M
Artal group	-	-	-15.63M
D. e. shaw	-	-	-3.28M
Northern trust	-	-	-3.16M
Morgan stanley	-	-	-2.63M

New Positions

Holder	Shares	% Assets	Change	Value
B. riley financial	756.96K	1.73%	756.96K	$2.07M
Marshall wace, llp	432.48K	0.00%	432.48K	$1.98M
Walleye capital	198.29K	0.00%	198.29K	$906.18K
Susquehanna portfolio strategies	122.29K	0.01%	122.29K	$558.86K
Susquehanna fundamental investments	62.70K	0.02%	62.70K	$1.05M

Sold Out

Holder	Change
Signature resources capital management	-1.00
Sittner & nelson	-1.00
Concord wealth partners	-1.00
Mcclarren financial advisors	-2.00
Assetmark	-3.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
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%
Dec 31, 2024	38	-62.00%	4,684,492	-43.78%	21	1.45%	20	-62.96%	8	-66.67%
Sep 30, 2024	100	8.70%	8,332,526	-4.41%	38	2.26%	54	54.29%	24	-56.36%
Jun 30, 2024	92	-24.59%	8,717,158	-95.73%	42	681.11%	35	-37.50%	55	30.95%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	654.90K	2.59%	-
Vanguard Total Stock Mkt Idx Inv	723.89K	2.41%	-15.99K
Vanguard Strategic Equity Inv	511.81K	1.87%	-
Invesco Dorsey Wright SmallCap Momt ETF	234.92K	1.09%	-
Vanguard Explorer Inv	290.65K	1.06%	-
Vanguard Institutional Extnd Mkt Idx Tr	295.92K	0.99%	-156.16K
Fidelity Small Cap Index	240.65K	0.88%	-2.96K
Vanguard Strategic Small-Cap Equity Inv	205.34K	0.75%	-
Vanguard VIF Small Co Gr	197.61K	0.72%	-
State St Russell Sm/Mid Cp® Indx NL Cl C	176.67K	0.65%	-

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
2025 Q3	-	-
2025 Q2	-	-
2025 Q1	-	-
2024 Q4	-	-
2024 Q3	-	-

AGEN Ownership FAQ

Who Owns Agenus?

Agenus shareholders are primarily institutional investors at 31.71%, followed by 1.68% insiders and 66.61% retail investors. The average institutional ownership in Agenus's industry, Biotech Stocks , is 306.59%, which Agenus falls below.

Who owns the most shares of Agenus?

Agenus’s largest shareholders are Vanguard group (2.41M shares, 11.18%), Siren (1.06M shares, 3.79%), and B. riley financial (756.96K shares, 3.51%). Together, they hold 18.47% 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.

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