Robeco Institutional Asset Management
IRWD icon

Robeco Institutional Asset Management’s Ironwood Pharmaceuticals IRWD Stock Holding History

Robeco Institutional Asset Management’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
2026
Q1 		$1.2M Hold
342,998
– – ﹤0.01% 721
2025
Q4 		$1.16M Hold
342,998
– – ﹤0.01% 718
2025
Q3 		$449K Sell
342,998
-27,336
-7% -$28.3K ﹤0.01% 806
2025
Q2 		$266K Sell
370,334
-10,626
-3% -$8.34K ﹤0.01% 834
2025
Q1 		$560K Hold
380,960
– – ﹤0.01% 831
2024
Q4 		$1.69M Hold
380,960
– – ﹤0.01% 727
2024
Q3 		$1.57M Buy
380,960
+353,624
+1,294% +$1.9M ﹤0.01% 742
2024
Q2 		$178K Hold
27,336
– – ﹤0.01% 902
2024
Q1 		$238K Hold
27,336
– – ﹤0.01% 905
2023
Q4 		$313K Hold
27,336
– – ﹤0.01% 878
2023
Q3 		$263K Hold
27,336
– – ﹤0.01% 898
2023
Q2 		$291K Hold
27,336
– – ﹤0.01% 910
2023
Q1 		$288K Buy
+27,336
New +$306K ﹤0.01% 902

Other funds holding IRWD

AC
Armistice Capital New York $5.62B AUM 36.06% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
SCM
Sarissa Capital Management Greenwich, Connecticut $158M AUM 103.7% 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
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Robeco Institutional Asset Management's IRWD Position: Q1 2026 in Review

Robeco Institutional Asset Management held its Ironwood Pharmaceuticals (IRWD) position steady in Q1 2026 at 342,998 shares worth $1.2M. The position accounts for ﹤0.01% of the portfolio, ranked #721.

Robeco Institutional Asset Management first reported a position in IRWD in Q1 2023 and has held it in 13 quarters since. The position peaked at $1.69M in Q4 2024. 226 funds tracked by Wall St. Rank hold IRWD as of Q1 2026.

  • Robeco Institutional Asset Management held 342,998 shares of Ironwood Pharmaceuticals worth $1.2M as of Q1 2026.
  • Robeco Institutional Asset Management left its Ironwood Pharmaceuticals share count unchanged in Q1 2026.
  • Ironwood Pharmaceuticals made up ﹤0.01% of Robeco Institutional Asset Management's portfolio in Q1 2026, its #721 holding.
  • Robeco Institutional Asset Management first reported a position in Ironwood Pharmaceuticals in Q1 2023 and has held it in 13 quarters since.
  • Robeco Institutional Asset Management's Ironwood Pharmaceuticals position peaked at $1.69M in Q4 2024.
  • 226 funds tracked by Wall St. Rank held Ironwood Pharmaceuticals as of Q1 2026.

Based on Robeco Institutional Asset Management's 13F filing for Q1 2026, filed 21 Apr 2026.