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Dynamic Technology Lab’s Ironwood Pharmaceuticals IRWD Stock Holding History

Dynamic Technology Lab’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
-16,118
Closed -$21K – 920
2025
Q3 		$21K Sell
16,118
-15,382
-49% -$15.9K ﹤0.01% 764
2025
Q2 		$23K Sell
31,500
-7,110
-18% -$5.58K ﹤0.01% 881
2025
Q1 		$57K Buy
+38,610
New +$92K 0.01% 926
2023
Q3 		– Sell
-12,121
Closed -$129K – 1129
2023
Q2 		$129K Sell
12,121
-40,864
-77% -$439K 0.02% 883
2023
Q1 		$557K Buy
+52,985
New +$594K 0.05% 581
2022
Q3 		– Sell
-11,127
Closed -$128K – 1323
2022
Q2 		$128K Buy
+11,127
New +$131K 0.01% 968
2021
Q4 		– Sell
-14,990
Closed -$196K – 1309
2021
Q3 		$196K Buy
+14,990
New +$194K 0.02% 914
2020
Q3 		– Sell
-20,999
Closed -$217K – 1161
2020
Q2 		$217K Sell
20,999
-1,002
-5% -$10.3K 0.03% 783
2020
Q1 		$222K Sell
22,001
-8,390
-28% -$98.6K 0.04% 718
2019
Q4 		$405K Buy
+30,391
New +$335K 0.06% 545
2019
Q3 		– Sell
-17,576
Closed -$192K – 1107
2019
Q2 		$192K Sell
17,576
-29,826
-63% -$334K 0.03% 828
2019
Q1 		$537K Buy
+47,402
New +$529K 0.09% 409
2018
Q1 		– Sell
-16,240
Closed -$204K – 1190
2017
Q4 		$204K Buy
+16,240
New +$212K 0.04% 874
2016
Q3 		– Sell
-13,160
Closed -$144K – 1009
2016
Q2 		$144K Buy
+13,160
New +$129K 0.04% 767

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

Dynamic Technology Lab's IRWD Position: Q4 2025 in Review

Dynamic Technology Lab sold out of Ironwood Pharmaceuticals (IRWD) in Q4 2025, closing a stake of 16,118 shares — an estimated $21K sold.

Dynamic Technology Lab first reported a position in IRWD in Q2 2016 and held it in 14 quarters. The position peaked at $557K in Q1 2023. 199 funds tracked by Wall St. Rank hold IRWD as of Q4 2025.

  • Dynamic Technology Lab reported no remaining Ironwood Pharmaceuticals position as of Q4 2025 after selling out during the quarter.
  • Dynamic Technology Lab sold 16,118 Ironwood Pharmaceuticals shares in Q4 2025, an estimated $21K.
  • Dynamic Technology Lab first reported a position in Ironwood Pharmaceuticals in Q2 2016 and held it in 14 quarters.
  • Dynamic Technology Lab's Ironwood Pharmaceuticals position peaked at $557K in Q1 2023.
  • 199 funds tracked by Wall St. Rank held Ironwood Pharmaceuticals as of Q4 2025.

Based on Dynamic Technology Lab's 13F filing for Q4 2025, filed 13 Feb 2026.