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Winton Group’s Ironwood Pharmaceuticals IRWD Stock Holding History

Winton Group’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 		$849K Buy
241,746
+77,411
+47% +$317K 0.03% 583
2025
Q4 		$554K Buy
+164,335
New +$427K 0.02% 613
2023
Q3 		– Sell
-53,035
Closed -$564K – 851
2023
Q2 		$564K Sell
53,035
-203,619
-79% -$2.19M 0.05% 274
2023
Q1 		$2.7M Buy
256,654
+57,514
+29% +$644K 0.16% 140
2022
Q4 		$2.47M Buy
199,140
+19,165
+11% +$217K 0.16% 157
2022
Q3 		$1.86M Buy
179,975
+67,976
+61% +$771K 0.12% 217
2022
Q2 		$1.29M Buy
+111,999
New +$1.32M 0.07% 405
2021
Q4 		– Sell
-71,214
Closed -$930K – 1205
2021
Q3 		$930K Sell
71,214
-21,428
-23% -$277K 0.05% 539
2021
Q2 		$1.19M Buy
92,642
+14,189
+18% +$162K 0.06% 430
2021
Q1 		$877K Sell
78,453
-12,204
-13% -$129K 0.05% 542
2020
Q4 		$1.03M Sell
90,657
-194,651
-68% -$2.13M 0.07% 398
2020
Q3 		$2.57M Sell
285,308
-20,285
-7% -$202K 0.08% 414
2020
Q2 		$3.15M Buy
305,593
+274,576
+885% +$2.81M 0.08% 427
2020
Q1 		$313K Buy
+31,017
New +$365K 0.01% 1161

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

Winton Group's IRWD Position: Q1 2026 in Review

Winton Group increased its Ironwood Pharmaceuticals (IRWD) stake by 47% in Q1 2026, buying an estimated $317K and bringing the position to 241,746 shares worth $849K. The position accounts for 0.03% of the portfolio, ranked #583.

Winton Group first reported a position in IRWD in Q1 2020 and has held it in 14 quarters since. The position peaked at $3.15M in Q2 2020. 226 funds tracked by Wall St. Rank hold IRWD as of Q1 2026.

  • Winton Group held 241,746 shares of Ironwood Pharmaceuticals worth $849K as of Q1 2026.
  • Winton Group bought 77,411 Ironwood Pharmaceuticals shares in Q1 2026, an estimated $317K.
  • Ironwood Pharmaceuticals made up 0.03% of Winton Group's portfolio in Q1 2026, its #583 holding.
  • Winton Group first reported a position in Ironwood Pharmaceuticals in Q1 2020 and has held it in 14 quarters since.
  • Winton Group's Ironwood Pharmaceuticals position peaked at $3.15M in Q2 2020.
  • 226 funds tracked by Wall St. Rank held Ironwood Pharmaceuticals as of Q1 2026.

Based on Winton Group's 13F filing for Q1 2026, filed 12 May 2026.