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Harbor Capital Advisors’s Ironwood Pharmaceuticals IRWD Stock Holding History

Harbor Capital Advisors’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 		– Sell
-7,902
Closed -$27K – 1365
2025
Q4 		$27K Sell
7,902
-135
-2% -$351 ﹤0.01% 777
2025
Q3 		$11K Buy
+8,037
New +$8.32K ﹤0.01% 925
2025
Q1 		– Sell
-99,610
Closed -$441K – 1472
2024
Q4 		$441K Sell
99,610
-68,461
-41% -$278K 0.02% 578
2024
Q3 		$692K Buy
168,071
+56,097
+50% +$302K 0.03% 519
2024
Q2 		$730K Buy
111,974
+56,117
+100% +$397K 0.06% 428
2024
Q1 		$487K Buy
+55,857
New +$678K 0.06% 402
2022
Q2 		– Sell
-105,858
Closed -$1.33M – 162
2022
Q1 		$1.33M Sell
105,858
-15,460
-13% -$177K 0.63% 49
2021
Q4 		$1.42M Buy
+121,318
New +$1.49M 0.52% 57

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

Harbor Capital Advisors's IRWD Position: Q1 2026 in Review

Harbor Capital Advisors sold out of Ironwood Pharmaceuticals (IRWD) in Q1 2026, closing a stake of 7,902 shares — an estimated $27K sold.

Harbor Capital Advisors first reported a position in IRWD in Q4 2021 and held it in 8 quarters. The position peaked at $1.42M in Q4 2021. 226 funds tracked by Wall St. Rank hold IRWD as of Q1 2026.

  • Harbor Capital Advisors reported no remaining Ironwood Pharmaceuticals position as of Q1 2026 after selling out during the quarter.
  • Harbor Capital Advisors sold 7,902 Ironwood Pharmaceuticals shares in Q1 2026, an estimated $27K.
  • Harbor Capital Advisors first reported a position in Ironwood Pharmaceuticals in Q4 2021 and held it in 8 quarters.
  • Harbor Capital Advisors's Ironwood Pharmaceuticals position peaked at $1.42M in Q4 2021.
  • 226 funds tracked by Wall St. Rank held Ironwood Pharmaceuticals as of Q1 2026.

Based on Harbor Capital Advisors's 13F filing for Q1 2026, filed 28 Apr 2026.