Vault-13

AGENUS INC AGEN

COM NEW · Common Stock · CUSIP 00847G804

Biotechnology company

102 institutional holders +15 vs Q1 2026
14,248,93114.2m shares reported held*
31.6% of all shares outstanding*
$43.6mreported value*
31 new 32 added 18 reduced 15 sold out net bought ≈ $15.4m (+5.0m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($872 this quarter). Holder counts are more reliable. Shares outstanding: 45.0m as of 2026-08-04, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $3.06. Options: 5 managers hold calls ($336.6k notional), 4 hold puts ($203.8k).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

050100150Q1 24: 10Q2 24: 89Q3 24: 98Q4 24: 85Q1 25: 89Q2 25: 93Q3 25: 87Q4 25: 96Q1 26: 87Q2 26: 102102Q1 24Q3 24Q1 25Q3 25Q1 26Q2 26
Numbers
QuarterHolders
Q1 202410
Q2 202489
Q3 202498
Q4 202485
Q1 202589
Q2 202593
Q3 202587
Q4 202596
Q1 202687
Q2 2026102

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q3 24: 55 bought or addedQ3 24: 43 cut or sold outQ4 24: 39 bought or addedQ4 24: 49 cut or sold outQ4 24Q1 25: 40 bought or addedQ1 25: 37 cut or sold outQ2 25: 52 bought or addedQ2 25: 57 cut or sold outQ2 25Q3 25: 40 bought or addedQ3 25: 52 cut or sold outQ4 25: 45 bought or addedQ4 25: 40 cut or sold outQ4 25Q1 26: 23 bought or addedQ1 26: 52 cut or sold outQ2 26: 63 bought or addedQ2 26: 33 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 20245543
Q4 20243949
Q1 20254037
Q2 20255257
Q3 20254052
Q4 20254540
Q1 20262352
Q2 20266333

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$1m$2m$3mQ3 25 calls: $2.2mQ3 25 puts: $664.5kQ3 25P/C 0.31Q4 25 calls: $745.4kQ4 25 puts: $102.4kQ4 25P/C 0.14Q1 26 calls: $651.0kQ1 26 puts: $218.1kQ1 26P/C 0.34Q2 26 calls: $336.6kQ2 26 puts: $203.8kQ2 26P/C 0.61
Numbers
QuarterCallsPutsP/C
Q3 2025$2.2m$664.5k0.31
Q4 2025$745.4k$102.4k0.14
Q1 2026$651.0k$218.1k0.34
Q2 2026$336.6k$203.8k0.61

Biggest buyers

BlackRock, Inc. Added +2,019,222+2.0m
MACKENZIE FINANCIAL CORP New +714,175+714.2k
GEODE CAPITAL MANAGEMENT, LLC Added +686,645+686.6k
GLOBEFLEX CAPITAL L P New +418,581+418.6k
GOLDMAN SACHS GROUP INC Added +416,929+416.9k
STATE STREET CORP Added +256,200+256.2k
VANGUARD CAPITAL MANAGEMENT LLC Added +235,864+235.9k
VANGUARD PORTFOLIO MANAGEMENT LLC Added +232,478+232.5k
NORTHERN TRUST CORP Added +224,332+224.3k
RAYMOND JAMES FINANCIAL INC Added +190,524+190.5k

Biggest sellers

MARSHALL WACE, LLP Reduced -248,582-248.6k
UBS Group AG Reduced -215,163-215.2k
ACADIAN ASSET MANAGEMENT LLC Reduced -190,048-190.0k
Walleye Capital LLC Sold out -120,565-120.6k
683 Capital Management, LLC Sold out -114,336-114.3k
TWO SIGMA INVESTMENTS, LP Reduced -72,237-72.2k
BANK OF AMERICA CORP /DE/ Reduced -66,770-66.8k
RENAISSANCE TECHNOLOGIES LLC Reduced -57,300-57.3k
Jump Financial, LLC Reduced -53,219-53.2k
CITADEL ADVISORS LLC Sold out -52,004-52.0k

Biggest calls

CITADEL ADVISORS LLC Reduced $90.3k29.5k shares
IMC-Chicago, LLC Added $82.3k26.9k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $77.4k25.3k shares
SIMPLEX TRADING, LLC Reduced $54.8k17.9k shares
JANE STREET GROUP, LLC New $31.8k10.4k shares

Biggest puts

IMC-Chicago, LLC Added $73.7k24.1k shares
CITADEL ADVISORS LLC Added $62.7k20.5k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $56.9k18.6k shares
SIMPLEX TRADING, LLC Added $10.4k3.4k shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Invus Global Management, LLC 13G · passive investor new · filed 2026-07-17 10.0% new 4.5m≈ $13.9m 2026-07-17
RA CAPITAL MANAGEMENT, L.P. 13G · passive investor new · filed 2026-07-20 9.9% new 4.3m≈ $13.3m 2026-07-20
BlackRock, Inc. 13G · institution +4.2 pts · filed 2026-07-27 6.0% +4.2 pts 2.5m≈ $7.7m 2026-07-27
ZYNEXT VENTURES USA LLC 13D · may seek influence new · filed 2026-01-23
Stated purposeThe acquisition of securities of the issuer is part of a strategic collaboration between Zydus and the issuer. At Zydus?s option, Zydus may appoint either a board observer or board member to issuer?s board of directors so long as Zydus retains significant ownership of issuer?s stock. Full filing
5.9% new 2.1m≈ $6.5m 2026-01-23

Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26)

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BlackRock, Inc. 0.00% of their portfolio New York, NY 2,564,8842.6m $7.8m $7.8m 0.00% Added +2.0m +2,019,222
2 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 1,676,0961.7m $5.1m $5.1m 0.00% Added +235.9k +235,864
3 VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 1,427,5871.4m $4.4m $4.4m 0.00% Added +232.5k +232,478
4 Siren, L.L.C. 0.07% of their portfolio New York, NY 1,064,2501.1m $3.3m $3.3m 0.07% Unchanged
5 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 1,035,0401.0m $3.2m $3.2m 0.00% Added +686.6k +686,645
6 MACKENZIE FINANCIAL CORP 0.00% of their portfolio TORONTO ONTARIO, A6 714,175714.2k $2.2m $2.2m 0.00% New
7 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 448,383448.4k $1.4m $1.4m 0.00% Added +416.9k +416,929
8 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 439,621439.6k $1.3m $1.3m 0.00% Reduced -248.6k -248,582
9 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 430,078430.1k $1.3m $1.3m 0.00% Added +190.5k +190,524
10 GLOBEFLEX CAPITAL L P 0.16% of their portfolio SAN DIEGO, CA 418,581418.6k $1.3m $1.3m 0.16% New
11 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 412,383412.4k $1.3m $1.3m 0.00% Added +256.2k +256,200
12 Man Group plc 0.00% of their portfolio LONDON, X0 340,425340.4k $1.0m $1.0m 0.00% Added +61.4k +61,445
13 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 314,052314.1k $961.0k $961.0k 0.00% Added +224.3k +224,332
14 Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio VANCOUVER, A1 310,035310.0k $948.7k $948.7k 0.00% Added +111.5k +111,533
15 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 271,614271.6k $831.1k $831.1k 0.00% Added +71.1k +71,116
16 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 262,068262.1k $801.9k $801.9k 0.00% Reduced -33.8k -33,753
17 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 228,346228.3k $698.7k $698.7k 0.00% Reduced -57.3k -57,300
18 PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio BOSTON, MA 179,589179.6k $549.5k $549.5k 0.00% Added +16.4k +16,441
19 Susquehanna Portfolio Strategies, LLC 0.01% of their portfolio Bala Cynwyd, PA 158,737158.7k $485.7k $485.7k 0.01% New
20 Jump Financial, LLC 0.00% of their portfolio Chicago, IL 103,981104.0k $318.2k $318.2k 0.00% Reduced -53.2k -53,219
21 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 101,773101.8k $311.4k $311.4k 0.00% New
22 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 99,39299.4k $304.1k $304.1k 0.00% Added +84.4k +84,392
23 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 98,68598.7k $302.0k $302.0k 0.00% Reduced -72.2k -72,237
24 STRS OHIO 0.00% of their portfolio COLUMBUS, OH 76,90076.9k $235.3k $235.3k 0.00% New
25 CANADA PENSION PLAN INVESTMENT BOARD 0.00% of their portfolio TORONTO ONTARIO, A6 67,10067.1k $205.3k $205.3k 0.00% Added +15.3k +15,300
26 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 57,65657.7k $177.0k $177.0k 0.00% Added +33.2k +33,156
27 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 52,01252.0k $159.2k $159.2k 0.00% Reduced -66.8k -66,770
28 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 50,93850.9k $155.9k $155.9k 0.00% New
29 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 43,21743.2k $132.2k $132.2k 0.00% Added +33.9k +33,854
30 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 42,01642.0k $128.6k $128.6k 0.00% Reduced -15.6k -15,643
31 Avestar Capital, LLC 0.01% of their portfolio New York, NY 41,00041.0k $125.5k $125.5k 0.01% Unchanged
32 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 38,90438.9k $119.0k $119.0k 0.00% New
33 Claro Advisors Inc. 0.01% of their portfolio BOSTON, MA 33,35033.4k $102.1k $102.1k 0.01% New
34 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 31,65031.6k $96.8k $96.8k 0.00% New
35 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 29,48829.5k $90.2k $90.2k 0.00% Added +28.9k +28,950
36 CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio RALEIGH, NC 28,97229.0k $88.7k $88.7k 0.00% Reduced -906 -906
37 Engineers Gate Manager LP 0.00% of their portfolio NEW YORK, NY 27,80827.8k $85.1k $85.1k 0.00% Reduced -6.5k -6,462
38 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 27,70227.7k $84.8k $84.8k 0.00% Added +27.7k +27,701
39 ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio Boston, MA 24,99925.0k $76.0k $76.0k 0.00% Reduced -190.0k -190,048
40 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 24,16624.2k $73.9k $73.9k 0.00% Added +446 +446
41 Key Client Fiduciary Advisors, LLC 0.02% of their portfolio Fairfield, NJ 24,12524.1k $73.8k $73.8k 0.02% Reduced -1.1k -1,141
42 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 23,46023.5k $71.8k $71.8k 0.00% Added +3.4k +3,446
43 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 21,89621.9k $67.0k $67.0k 0.00% Added +21.8k +21,800
44 PRELUDE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio NEW YORK, NY 19,76119.8k $60.5k $60.5k 0.00% Added +4.9k +4,861
45 PRUDENTIAL FINANCIAL INC 0.00% of their portfolio NEWARK, NJ 19,41019.4k $59.4k $59.4k 0.00% Added +6.9k +6,930
46 UBS Group AG 0.00% of their portfolio ZURICH, V8 19,27619.3k $59.0k $59.0k 0.00% Reduced -215.2k -215,163
47 Vanguard Personalized Indexing Management, LLC 0.00% of their portfolio OAKLAND, CA 19,19919.2k $58.7k $58.7k 0.00% Added +827 +827
48 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 18,90018.9k $57.8k $57.8k 0.00% New
49 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 18,34718.3k $56.1k $56.1k 0.00% New
50 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 17,11717.1k $53.9k $53.9k 0.00% Added +16.7k +16,735
51 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 15,90615.9k $48.7k $48.7k 0.00% Unchanged
52 DIVERSIFIED TRUST CO 0.00% of their portfolio MEMPHIS, TN 15,58115.6k $47.7k $47.7k 0.00% New
53 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 15,51515.5k $47.5k $47.5k 0.00% Unchanged
54 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 15,34215.3k $46.9k $46.9k 0.00% New
55 R Squared Ltd 0.02% of their portfolio HONG KONG, K3 13,42113.4k $41.1k $41.1k 0.02% New
56 FMR LLC 0.00% of their portfolio BOSTON, MA 13,28213.3k $40.6k $40.6k 0.00% Added +7.9k +7,877
57 Virtu Financial LLC 0.00% of their portfolio New York, NY 12,92512.9k $40.0k $40.0k 0.00% New
58 Post Resch Tallon Group Inc. 0.03% of their portfolio PITTSFORD, NY 12,75012.8k $39.0k $39.0k 0.03% Unchanged
59 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 12,38012.4k $41.3k $41.3k 0.00% New
60 Abel Hall, LLC 0.01% of their portfolio BATON ROUGE, LA 11,76011.8k $36.0k $36.0k 0.01% New
61 Graham Capital Management, L.P. 0.00% of their portfolio ROWAYTON, CT 11,45511.5k $35.1k $35.1k 0.00% Reduced -18.5k -18,455
62 HSBC HOLDINGS PLC 0.00% of their portfolio LONDON, X0 11,17611.2k $34.8k $34.8k 0.00% Reduced -3.7k -3,712
63 Values First Advisors, Inc. 0.02% of their portfolio JOHNSON CITY, TN 10,98411.0k $33.6k $33.6k 0.02% Reduced -207 -207
64 StoneX Group Inc. 0.00% of their portfolio NEW YORK, NY 10,72810.7k $36.8k $36.8k 0.00% New
65 ZACKS INVESTMENT MANAGEMENT 0.00% of their portfolio Chicago, IL 10,55010.6k $32.3k $32.3k 0.00% New
66 EP Wealth Advisors, LLC 0.00% of their portfolio TORRANCE, CA 10,00010.0k $30.6k $30.6k 0.00% Unchanged
67 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 9,1979.2k $28.1k $28.1k 0.00% Reduced -50.1k -50,148
68 Legal & General Group Plc 0.00% of their portfolio London, X0 3,8643.9k $11.8k $11.8k 0.00% New
69 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 3,6163.6k $11.1k $11.1k 0.00% New
70 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 3,6143.6k $11.1k $11.1k 0.00% Added +3.2k +3,181
71 FEDERATED HERMES, INC. 0.00% of their portfolio PITTSBURGH, PA 3,3803.4k $10.3k $10.3k 0.00% New
72 Pinnacle Wealth Planning Services, Inc. 0.00% of their portfolio MANSFIELD, OH 3,3733.4k $10.3k $10.3k 0.00% Unchanged
73 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 2,3112.3k $7.1k $7.1k 0.00% New
74 CoreCap Advisors, LLC 0.00% of their portfolio SOUTHFIELD, MI 2,0002.0k $6.1k $6.1k 0.00% Unchanged
75 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 1,9121.9k $6.0k $6.0k 0.00% Added +1.9k +1,863
76 Atlantic Union Bankshares Corp 0.00% of their portfolio GLEN ALLEN, VA 1,7501.8k $5.4k $5.4k 0.00% Added +1.5k +1,500
77 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 1,6331.6k $5.0k $5.0k 0.00% New
78 Forum Finance Group S.A. 0.00% of their portfolio GENEVA, V8 1,3001.3k $3.0k $3.0k 0.00% Unchanged
79 CHILTON CAPITAL MANAGEMENT LLC 0.00% of their portfolio HOUSTON, TX 1,0581.1k $3.2k $3.2k 0.00% Unchanged
80 Covestor Ltd 0.00% of their portfolio LONDON, X0 915915 $3.0k $3.0k 0.00% Unchanged
81 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 847847 $2.6k $2.6k 0.00% Added +600 +600
82 Sterling Capital Management LLC 0.00% of their portfolio CHARLOTTE, NC 705705 $2.2k $2.2k 0.00% New
83 HUNTINGTON NATIONAL BANK 0.00% of their portfolio COLUMBUS, OH 664664 $2.0k $2.0k 0.00% Added +164 +164
84 NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 0.00% of their portfolio MILWAUKEE, WI 633633 $1.9k $1.9k 0.00% Unchanged
85 Physician Wealth Advisors, Inc. 0.00% of their portfolio MIDVALE, UT 621621 $1.9k $1.9k 0.00% Unchanged
86 Game Plan Financial Advisors, LLC 0.00% of their portfolio WESTLAKE, OH 585585 $1.8k $1.8k 0.00% Unchanged
87 Optiver Holding B.V. 0.00% of their portfolio AMSTERDAM, P7 574574 $1.8k $1.8k 0.00% Added +96 +96
88 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 561561 $1.7k $1.7k 0.00% Reduced -7.9k -7,909
89 Rialto Wealth Management, LLC 0.00% of their portfolio SYRACUSE, NY 305305 $934 $934 0.00% Unchanged
90 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 285285 $872 $872 0.00% Unchanged
91 Bare Financial Services, Inc 0.00% of their portfolio GAP, PA 173173 $529 $529 0.00% New
92 Bogart Wealth, LLC 0.00% of their portfolio MCLEAN, VA 171171 $523 $523 0.00% New
93 LifeSteps Financial, Inc. 0.00% of their portfolio CLAREMONT, CA 100100 $306 $306 0.00% New
94 Federation des caisses Desjardins du Quebec 0.00% of their portfolio LEVIS, A8 100100 $306 $306 0.00% Unchanged
95 Transamerica Financial Advisors, LLC 0.00% of their portfolio CEDAR RAPIDS, IA 1818 $55 $55 0.00% New
96 JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio DES PERES, MO 1212 $36 $36 0.00% New
97 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 1212 $37 $37 0.00% Unchanged
98 HARBOUR INVESTMENTS, INC. 0.00% of their portfolio MADISON, WI 99 $28 $28 0.00% Unchanged
99 Allworth Financial LP 0.00% of their portfolio FOLSOM, CA 88 $25 $25 0.00% Reduced -50 -50
100 Arax Advisory Partners 0.00% of their portfolio NEW YORK, NY 55 $15 $15 0.00% Unchanged