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Siren LLC’s Ironwood Pharmaceuticals IRWD Stock Holding History

Siren LLC’s Portfolio IRWD Stock Details IRWD Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-110,532
Closed -$145K – 120
2025
Q3 		$145K Hold
110,532
– – 0.01% 115
2025
Q2 		$79.6K Hold
110,532
– – ﹤0.01% 110
2025
Q1 		$162K Hold
110,532
– – 0.01% 115
2024
Q4 		$490K Hold
110,532
– – 0.02% 112
2024
Q3 		$455K Buy
+110,532
New +$594K 0.02% 105

Other funds holding IRWD

AC
Armistice Capital New York $5.62B AUM 36.06% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
SCM
Sarissa Capital Management Greenwich, Connecticut $158M AUM 103.7% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

Siren LLC's IRWD Position: Q4 2025 in Review

Siren LLC sold out of Ironwood Pharmaceuticals (IRWD) in Q4 2025, closing a stake of 110,532 shares — an estimated $145K sold.

Siren LLC first reported a position in IRWD in Q3 2024 and held it in 5 quarters. The position peaked at $490K in Q4 2024. 199 funds tracked by Wall St. Rank hold IRWD as of Q4 2025.

  • Siren LLC reported no remaining Ironwood Pharmaceuticals position as of Q4 2025 after selling out during the quarter.
  • Siren LLC sold 110,532 Ironwood Pharmaceuticals shares in Q4 2025, an estimated $145K.
  • Siren LLC first reported a position in Ironwood Pharmaceuticals in Q3 2024 and held it in 5 quarters.
  • Siren LLC's Ironwood Pharmaceuticals position peaked at $490K in Q4 2024.
  • 199 funds tracked by Wall St. Rank held Ironwood Pharmaceuticals as of Q4 2025.

Based on Siren LLC's 13F filing for Q4 2025, filed 13 Feb 2026.