Comparable stake leader
ZYNEXT VENTURES USA LLC
SEC ownership of AGENUS INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001098972.
Disclosed value leader
ZYNEXT VENTURES USA LLC
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- AGEN on Nasdaq
- Parsed ownership sources
-
13D/G and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
ZYNEXT VENTURES USA LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
ZYNEXT VENTURES USA LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001098972
- Issuer location
- Lexington, MA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of AGENUS INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
ZYNEXT VENTURES USA LLC
Disclosed value leader
ZYNEXT VENTURES USA LLC
Comparable rows
50/50
Latest evidence
31 Mar 2026
13D/G
13F
Lead comparable stake: 5.9%
13D/G row: ZYNEXT VENTURES USA LLC
Showing 1-8 of 50 holder rows.
Quick read
ZYNEXT VENTURES USA LLC leads the comparable SEC ownership view at 5.9%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens ZYNEXT VENTURES USA LLC's linked filing trail.
Comparable ownership
Top 5
ZYNEXT VENTURES USA LLC
5.9%
BlackRock, Inc.
1.8%
VANGUARD CAPITAL MANAGEMENT LLC
4%
VANGUARD PORTFOLIO MANAGEMENT LLC
3.3%
Siren, L.L.C.
2.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| ZYNEXT VENTURES USA LLC |
13D/G
|
5.9%
|
$6,698,666
2,133,333 shares
|
$0 | 15 Jan 2026 |
| BlackRock, Inc. |
13D/G
13F
Company
|
1.8%
|
$2,303,670
503,986 shares
|
$0 | 30 Jun 2025 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
4%
|
$4,810,375
1,440,232 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
Company
|
3.3%
|
$3,991,664
1,195,109 shares
|
— | 31 Mar 2026 |
| Siren, L.L.C. |
13F
Individual
|
2.9%
|
$3,554,595
1,064,250 shares
|
— | 31 Mar 2026 |
| MARSHALL WACE, LLP |
13F
Company
|
1.9%
|
$2,298,597
688,203 shares
|
— | 31 Mar 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
0.96%
|
$1,164,522
348,395 shares
|
— | 31 Mar 2026 |
| MORGAN STANLEY |
13F
Company
|
0.82%
|
$988,042
295,821 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 29 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-13 of 13 reporting-owner rows connected to AGENUS INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
13
Largest Forms 3/4/5 holder
Garo H. Armen
Net 12M change
$0
Latest report
12 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Garo H. Armen | Chairman, Chief Executive Officer and Principal Financial Officer, Director | $1,302,072 | Median | 12 Jun 2026 | ||
| Steven J. O'Day | Chief Medical Officer | $255,308 | Mixed | 24 Apr 2026 | ||
| Wadih Jordan | Director | $199,154 | Mixed | 03 Oct 2022 | ||
| Ulf Wiinberg | Director | $193,284 | Mixed | 01 Oct 2024 | ||
| Thomas L. Harrison | Director | $130,253 | Median | 24 Apr 2026 | ||
| Christine M. Klaskin | Pfo & Pao | $104,946 | Mixed | 18 Jun 2025 | ||
| Jennifer Buell | Chairman of the Executive Counsel, Director | $61,385 | Mixed | 24 Apr 2026 | ||
| Timothy Wright | Director | $48,014 | Mixed | 24 Apr 2026 | ||
| Susan B. Hirsch | Director | $44,568 | Mixed | 24 Apr 2026 | ||
| Austin Charette | Principal Accounting Officer | $28,621 | Mixed | 24 Apr 2026 | ||
| Adam Krauss | Chief Legal Officer | Mixed | 15 Jun 2021 | |||
| Brian Corvese | Director | Mixed | 24 Apr 2026 | |||
| Allison Jeynes-Ellis | Director | Mixed | 05 Feb 2024 |
Recent insider transactions for AGENUS INC
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Garo H. Armen | AGEN | Common Stock | Award | 1.38% | 4,925 | 360,892 | 12 Jun 2026 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.32% | 4,644 | 355,967 | 29 May 2026 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.31% | 4,540 | 351,323 | 15 May 2026 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.24% | 4,233 | 346,783 | 01 May 2026 | Direct | ||
| Susan B. Hirsch | AGEN | Stock Option | Award | 105,000 | 105,000 | 24 Apr 2026 | Direct | |||
| Jennifer Buell | AGEN | Stock Option | Award | 305,000 | 300,000 | 24 Apr 2026 | Direct | |||
| Steven J. O'Day | AGEN | Stock Option | Award | 165,333 | 95,333 | 24 Apr 2026 | Direct | |||
| Thomas L. Harrison | AGEN | Stock Option | Award | 122,500 | 122,500 | 24 Apr 2026 | Direct | |||
| Timothy Wright | AGEN | Stock Option | Award | 105,000 | 105,000 | 24 Apr 2026 | Direct | |||
| Austin Charette | AGEN | Stock Option | Award | 22,619 | 17,619 | 24 Apr 2026 | Direct | |||
| Garo H. Armen | AGEN | Stock Option | Award | 1,165,300 | 1,000,000 | 24 Apr 2026 | Direct | |||
| Brian Corvese | AGEN | Stock Option | Award | 210,000 | 210,000 | 24 Apr 2026 | Direct | |||
| Garo H. Armen | AGEN | Common Stock | Award | 1% | 3,403 | 342,550 | 17 Apr 2026 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.38% | 4,629 | 339,147 | 03 Apr 2026 | Direct | ||
| Thomas L. Harrison | AGEN | Common Stock | Award | 31% | 9,228 | 38,998 | 01 Apr 2026 | Direct | ||
| Timothy R. Wright | AGEN | Deferred Stock Units | Award | 10.2% | 2,448 | 26,361 | 01 Apr 2026 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.21% | 3,983 | 334,518 | 20 Mar 2026 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.53% | 4,994 | 330,535 | 06 Mar 2026 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.51% | 4,829 | 325,541 | 20 Feb 2026 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.59% | 5,027 | 320,712 | 06 Feb 2026 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.47% | 4,562 | 315,685 | 23 Jan 2026 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.23% | 3,780 | 311,123 | 09 Jan 2026 | Direct | ||
| Thomas L. Harrison | AGEN | Common Stock | Award | 34.8% | 7,691 | 29,770 | 02 Jan 2026 | Direct | ||
| Timothy R. Wright | AGEN | Deferred Stock Units | Award | 9.33% | 2,041 | 23,913 | 02 Jan 2026 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.63% | 4,942 | 307,343 | 26 Dec 2025 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.45% | 4,316 | 302,401 | 12 Dec 2025 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.22% | 3,587 | 298,085 | 28 Nov 2025 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.3% | 3,769 | 294,498 | 14 Nov 2025 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.44% | 4,120 | 290,729 | 31 Oct 2025 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.49% | 4,216 | 286,609 | 17 Oct 2025 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.42% | 3,951 | 282,393 | 03 Oct 2025 | Direct | ||
| Thomas L. Harrison | AGEN | Common Stock | Award | 35.5% | 5,780 | 22,079 | 01 Oct 2025 | Direct | ||
| Timothy R. Wright | AGEN | Deferred Stock Units | Award | 8.45% | 1,705 | 21,872 | 01 Oct 2025 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.36% | 3,734 | 278,442 | 19 Sep 2025 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.39% | 3,778 | 274,708 | 05 Sep 2025 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.35% | 3,619 | 270,930 | 22 Aug 2025 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.29% | 3,407 | 267,311 | 08 Aug 2025 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 1.05% | 2,745 | 263,904 | 25 Jul 2025 | Direct | ||
| Garo H. Armen | AGEN | Common Stock | Award | 0.9% | 2,317 | 261,159 | 11 Jul 2025 | Direct | ||
| Thomas L. Harrison | AGEN | Common Stock | Award | 83.2% | 7,401 | 16,299 | 01 Jul 2025 | Direct | ||
| Timothy R. Wright | AGEN | Deferred Stock Units | Award | 15.5% | 2,708 | 20,168 | 01 Jul 2025 | Direct |
* marks a reported price that did not pass the local price check.