Agenus Ownership | Who Owns Agenus?


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Agenus Ownership Summary


Agenus is owned by 23.49% institutional investors, 7.60% insiders, and 68.91% retail investors. Vanguard group is the largest institutional shareholder, holding 8.88% of AGEN shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.83% of its assets in Agenus shares.

AGEN Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockAgenus23.49%7.60%68.91%
SectorHealthcare Stocks 231.98%10.74%-142.72%
IndustryBiotech Stocks 381.47%10.55%-292.02%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Vanguard group2.83M8.88%$8.89M
Siren1.06M3.79%$4.10M
B. riley financial756.96K3.51%$2.07M
Acadian asset management622.48K1.95%$1.95M
Blackrock funding, inc. /de558.35K1.75%$1.75M
Renaissance543.55K1.70%$1.71M
Geode capital management372.75K1.17%$1.17M
Walleye capital310.79K1.11%$1.20M
Morgan stanley285.20K0.89%$895.52K
Northwestern mutual wealth management278.55K0.87%$34.92M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
B. riley financial756.96K1.73%$2.07M
Siren1.06M0.16%$4.10M
Post resch tallon group12.75K0.03%$40.03K
Sherbrooke park advisers16.56K0.03%$63.74K
Key client fiduciary advisors27.35K0.03%$85.87K
Susquehanna fundamental investments62.70K0.02%$1.05M
Northwestern mutual wealth management278.55K0.02%$34.92M
R squared13.13K0.02%$41.23K
Ovata capital management30.80K0.02%$96.71K
Values first advisors11.06K0.02%$34.74K

Top Buyers

HolderShares% AssetsChange
B. riley financial756.96K1.73%756.96K
Renaissance543.55K0.00%477.35K
Acadian asset management622.48K0.00%417.39K
Northwestern mutual wealth management278.55K0.02%277.84K
Vanguard group2.83M0.00%261.20K

Top Sellers

HolderShares% AssetsChange
Blackrock---29.25M
Artal group---15.63M
D. e. shaw---3.28M
Bank of america corp /de/---1.34M
Gsa capital partners llp---1.27M

New Positions

HolderShares% AssetsChangeValue
B. riley financial756.96K1.73%756.96K$2.07M
Two sigma investments, lp102.35K0.00%102.35K$394.06K
Connor, clark & lunn investment management67.96K0.00%67.96K$213.39K
Susquehanna fundamental investments62.70K0.02%62.70K$1.05M
Graham capital management54.82K0.00%54.82K$211.06K

Sold Out

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

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 202556-39.78%7,491,561-14.83%232.40%21-53.33%17-29.17%
Sep 30, 202552-43.48%5,767,057-23.15%202.88%22-56.00%14-48.15%
Jun 30, 2025987.69%8,916,0955.13%312.64%5326.19%2821.74%
Mar 31, 202590-8,338,5610.54%342.30%42-2414.29%
Dec 31, 202438-62.00%4,684,492-43.78%211.45%20-62.96%8-66.67%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv1.02M2.83%21.50K
Vanguard US Total Market Shares ETF654.90K2.59%-
Vanguard Strategic Equity Inv511.81K1.42%-
Invesco Dorsey Wright SmallCap Momt ETF234.92K1.09%-
Vanguard Institutional Extnd Mkt Idx Tr343.41K0.95%-
Fidelity Small Cap Index240.65K0.88%-2.96K
Vanguard Explorer Inv290.65K0.80%-
State St Russell Sm/Mid Cp® Indx NL Cl C176.67K0.65%-
State St Russell Sm/Mid Cp® Indx SL Cl I176.67K0.64%-
iShares Russell 2000 Value ETF157.13K0.57%-

Recent Insider Transactions


DateNameRoleActivityValue
Feb 15, 2024ARMEN GARO H See RemarksBuy$324.05K
Nov 15, 2023WIINBERG ULF-Buy$19.00K
Jan 06, 2022O'Day Steven J Chief Medical OfficerSell$118.35K
Sep 13, 2021ARMEN GARO H Chairman and CEOSell$533.70K
Sep 10, 2021KLASKIN CHRISTINE M PFO & PAOSell$72.28K

Insider Transactions Trends


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

AGEN Ownership FAQ


Who Owns Agenus?

Agenus shareholders are primarily institutional investors at 23.49%, followed by 7.60% insiders and 68.91% retail investors. The average institutional ownership in Agenus's industry, Biotech Stocks , is 381.47%, which Agenus falls below.

Who owns the most shares of Agenus?

Agenus’s largest shareholders are Vanguard group (2.83M shares, 8.88%), Siren (1.06M shares, 3.79%), and B. riley financial (756.96K shares, 3.51%). Together, they hold 16.18% 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 Total Stock Mkt Idx Inv is the top mutual fund holder of Agenus shares, with 2.83% of its total shares outstanding invested in 1.02M Agenus shares.

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