Agenus Inc: which funds bought and sold

Institutions that bought and sold Agenus shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 63 institutions that filed 13F reports for both quarters added to or opened positions in Agenus, and 33 cut or closed them. Together they added a net 5.0M shares, +54.7% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 878K shares (−37.9%); index fund managers were net buyers of 3.8M shares (+95.8%). 32 opened a new position and 15 sold out entirely.

Bought, Q2 2026 63 institutions, 32 of them new holders Sold, Q2 2026 33 institutions, 15 of them sold out

Net change, all compared +5.0M shares (+54.7%)

Net change, active managers −878K shares (−37.9%), 6 bought, 14 sold

Buyers versus sellers

institutions compared, 117

63 bought 21 33 sold

Active managers and hedge funds 6 bought · 14 sold · −878K

Index fund managers 10 bought · 0 sold · +3.8M

Other institutions 47 bought · 19 sold · +2.1M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Blackrock, Inc. Index funds	+2.0M +370.0%	2.6M	$7.8M
Mackenzie Financial Corp	+714K New position	714K	$2.2M
Geode Capital Management, LLC Index funds	+687K +197.1%	1.0M	$3.2M
Globeflex Capital L P	+419K New position	419K	$1.3M
Goldman Sachs Group Inc	+417K +1325.5%	448K	$1.4M
State Street Corp Index funds	+256K +164.0%	412K	$1.3M
Vanguard Capital Management LLC Index funds	+236K +16.4%	1.7M	$5.1M
Vanguard Portfolio Management LLC Index funds	+232K +19.5%	1.4M	$4.4M
Northern Trust Corp Index funds	+224K +250.0%	314K	$961,000
Raymond James Financial Inc	+191K +79.5%	430K	$1.3M
Susquehanna Portfolio Strategies, LLC	+159K New position	159K	$485,735
Connor, Clark & Lunn Investment Management Ltd.	+112K +56.2%	310K	$948,707
Bank Of New York Mellon Corp	+102K New position	102K	$311,424
Charles Schwab Investment Management Inc Index funds	+84K +562.6%	99K	$304,140
Strs Ohio	+77K New position	77K	$235,314
Vanguard Fiduciary Trust Co Index funds	+71K +35.5%	272K	$831,139
Man Group PLC Hedge fund	+61K +22.0%	340K	$1M
Invesco Ltd.	+51K New position	51K	$155,870
Deutsche Bank Ag\	+39K New position	39K	$119,046
Wells Fargo & Company	+34K +361.6%	43K	$132,245

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Man Group PLC Hedge fund	+61K +22.0%	340K	$1M
Price T Rowe Associates Inc Active manager	+33K +135.3%	58K	$177,000
Panagora Asset Management Inc Active manager	+16K +10.1%	180K	$549,542
Alliancebernstein L.P. Active manager	+12K New position	12K	$41,349
FMR LLC Active manager	+7,877 +145.7%	13K	$40,643
Federated Hermes, Inc. Active manager	+3,380 New position	3,380	$10,343

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Marshall Wace, LLP Hedge fund	−249K −36.1%	440K	$1.3M
UBS Group AG	−215K −91.8%	19K	$58,985
Acadian Asset Management LLC Active manager	−190K −88.4%	25K	$76,000
Walleye Capital LLC Hedge fund	−121K Sold out	0	—
683 Capital Management, LLC Hedge fund	−114K Sold out	0	—
Two Sigma Investments, LP Hedge fund	−72K −42.3%	99K	$301,976
Bank Of America Corp	−67K −56.2%	52K	$159,157
Renaissance Technologies LLC Hedge fund	−57K −20.1%	228K	$698,739
Jump Financial, LLC	−53K −33.9%	104K	$318,182
Citadel Advisors LLC Hedge fund	−52K Sold out	0	—
Barclays PLC	−50K −84.5%	9,197	$28,143
Millennium Management LLC Hedge fund	−43K Sold out	0	—
Omers Administration Corp	−35K Sold out	0	—
Morgan Stanley	−34K −11.4%	262K	$801,929
Hudson Bay Capital Management LP Hedge fund	−34K Sold out	0	—
D. E. Shaw & Co., Inc. Hedge fund	−33K Sold out	0	—
Axq Capital, LP	−29K Sold out	0	—
Graham Capital Management, L.P. Hedge fund	−18K −61.7%	11K	$35,052
Two Sigma Securities, LLC	−18K Sold out	0	—
Susquehanna International Group, LLP	−16K −27.1%	42K	$128,569

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Marshall Wace, LLP Hedge fund	−249K −36.1%	440K	$1.3M
Acadian Asset Management LLC Active manager	−190K −88.4%	25K	$76,000
Walleye Capital LLC Hedge fund	−121K Sold out	0	—
683 Capital Management, LLC Hedge fund	−114K Sold out	0	—
Two Sigma Investments, LP Hedge fund	−72K −42.3%	99K	$301,976
Renaissance Technologies LLC Hedge fund	−57K −20.1%	228K	$698,739
Citadel Advisors LLC Hedge fund	−52K Sold out	0	—
Millennium Management LLC Hedge fund	−43K Sold out	0	—
Hudson Bay Capital Management LP Hedge fund	−34K Sold out	0	—
D. E. Shaw & Co., Inc. Hedge fund	−33K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Mackenzie Financial Corp	714K	$2.2M
Globeflex Capital L P	419K	$1.3M
Susquehanna Portfolio Strategies, LLC	159K	$485,735
Bank Of New York Mellon Corp	102K	$311,424
Strs Ohio	77K	$235,314
Invesco Ltd.	51K	$155,870
Deutsche Bank Ag\	39K	$119,046
Claro Advisors Inc.	33K	$102,051
Xtx Topco Ltd	32K	$96,849
New York State Common Retirement Fund	19K	$57,834

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Walleye Capital LLCHedge fund	121K	$402,687
683 Capital Management, LLCHedge fund	114K	$381,882
Citadel Advisors LLCHedge fund	52K	$173,693
Millennium Management LLCHedge fund	43K	$144,986
Omers Administration Corp	35K	$115,898
Hudson Bay Capital Management LPHedge fund	34K	$112,034
D. E. Shaw & Co., Inc.Hedge fund	33K	$111,118
Axq Capital, LP	29K	$97,044
Two Sigma Securities, LLC	18K	$59,265
Redwood Family Wealth LLC	14K	$47,228

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 102
Ten largest holders: 71.7%
Index fund managers: 55.1%
Active managers and hedge funds: 10.1%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	6	14	2	8	−878K	−37.9%
Index fund managers	10	0	0	0	+3.8M	+95.8%
Other institutions	47	19	30	7	+2.1M	+72.1%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Agenus.

Only managers that filed a holdings report for both quarters are compared (117 here). 1 other holder is left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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