SL
AGEN

Siren LLC’s Agenus AGEN Stock Holding History

Siren LLC’s Portfolio AGEN Stock Details AGEN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$3.26M Hold
1,064,250
– – 0.07% 100
2026
Q1 		$3.55M Hold
1,064,250
– – 0.1% 84
2025
Q4 		$3.34M Hold
1,064,250
– – 0.1% 91
2025
Q3 		$4.1M Hold
1,064,250
– – 0.16% 70
2025
Q2 		$4.86M Buy
1,064,250
+564,250
+113% +$1.95M 0.25% 66
2025
Q1 		$753K Buy
+500,000
New +$1.44M 0.04% 105
2024
Q4 		– Sell
-775,000
Closed -$4.25M – 120
2024
Q3 		$4.25M Buy
+775,000
New +$5.8M 0.21% 72

Other funds holding AGEN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Mackenzie Financial
Mackenzie Financial Toronto Ontario, Ontario, Canada $100B AUM 36.93% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return
GC
Globeflex Capital San Diego, California $783M AUM 81.58% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Siren LLC's AGEN Position: Q2 2026 in Review

Siren LLC held its Agenus (AGEN) position steady in Q2 2026 at 1,064,250 shares worth $3.26M. The position accounts for 0.07% of the portfolio, ranked #100.

Siren LLC first reported a position in AGEN in Q3 2024 and has held it in 7 quarters since. The position peaked at $4.86M in Q2 2025. 103 funds tracked by Wall St. Rank hold AGEN as of Q2 2026.

  • Siren LLC held 1,064,250 shares of Agenus worth $3.26M as of Q2 2026.
  • Siren LLC left its Agenus share count unchanged in Q2 2026.
  • Agenus made up 0.07% of Siren LLC's portfolio in Q2 2026, its #100 holding.
  • Siren LLC first reported a position in Agenus in Q3 2024 and has held it in 7 quarters since.
  • Siren LLC's Agenus position peaked at $4.86M in Q2 2025.
  • 103 funds tracked by Wall St. Rank held Agenus as of Q2 2026.

Based on Siren LLC's 13F filing for Q2 2026, filed 13 Aug 2026.