Simplex Trading
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Simplex Trading’s Ironwood Pharmaceuticals IRWD Stock Holding History

Simplex Trading’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 		$164K Buy
+46,800
New +$192K ﹤0.01% 4535
2025
Q3 		– Sell
-5,800
Closed -$4K – 9505
2025
Q2 		$4K Buy
+5,800
New +$4.55K ﹤0.01% 7852
2025
Q1 		– Sell
-900
Closed -$3K – 9035
2024
Q4 		$3K Sell
900
-38,100
-98% -$155K ﹤0.01% 7883
2024
Q3 		$160K Sell
39,000
-8,300
-18% -$44.6K ﹤0.01% 4743
2024
Q2 		$308K Sell
47,300
-584,200
-93% -$4.13M ﹤0.01% 4191
2024
Q1 		$5.5M Buy
631,500
+446,100
+241% +$5.41M ﹤0.01% 1540
2023
Q4 		$2.12M Buy
185,400
+184,200
+15,350% +$1.82M ﹤0.01% 2307
2023
Q3 		$11K Buy
+1,200
New +$11.8K ﹤0.01% 7108
2023
Q2 		– Sell
-1,700
Closed -$17K – 9435
2023
Q1 		$17K Sell
1,700
-28,100
-94% -$315K ﹤0.01% 7065
2022
Q4 		$369K Buy
29,800
+2,600
+10% +$29.5K ﹤0.01% 3508
2022
Q3 		$281K Buy
27,200
+1,600
+6% +$18.1K ﹤0.01% 4163
2022
Q2 		$295K Buy
25,600
+13,700
+115% +$161K ﹤0.01% 4120
2022
Q1 		$149K Sell
11,900
-122,400
-91% -$1.4M ﹤0.01% 5590
2021
Q4 		$1.56M Buy
134,300
+95,200
+243% +$1.17M ﹤0.01% 2310
2021
Q3 		$505K Hold
39,100
– – ﹤0.01% 4100
2021
Q2 		$503K Buy
39,100
+38,522
+6,665% +$441K ﹤0.01% 4154
2021
Q1 		$646K Sell
578
-616
-52% -$6.51K ﹤0.01% 2987
2020
Q4 		$1.36M Buy
1,194
+1,174
+5,870% +$12.8K ﹤0.01% 2173
2020
Q3 		$17K Sell
20
-199
-91% -$1.98K ﹤0.01% 6455
2020
Q2 		$226K Buy
219
+63
+40% +$645 ﹤0.01% 3853
2020
Q1 		$157K Buy
156
+138
+767% +$1.62K ﹤0.01% 3867
2019
Q4 		$23K Sell
18
-163
-90% -$1.8K ﹤0.01% 5839
2019
Q3 		$155K Buy
181
+9
+5% +$87 ﹤0.01% 3836
2019
Q2 		$187K Sell
172
-51
-23% -$571 ﹤0.01% 3527
2019
Q1 		$253K Buy
223
+16
+8% +$179 ﹤0.01% 3360
2018
Q4 		$179K Sell
207
-213
-51% -$2.44K ﹤0.01% 3268
2018
Q3 		$649K Sell
420
-829
-66% -$13.1K ﹤0.01% 2342
2018
Q2 		$2M Buy
1,249
+890
+248% +$13.2K 0.01% 1152
2018
Q1 		$31K Buy
359
+253
+239% +$3.15K ﹤0.01% 2906
2017
Q4 		$2K Sell
106
-170
-62% -$2.22K ﹤0.01% 5195
2017
Q3 		$32K Buy
276
+47
+21% +$647 ﹤0.01% 2721
2017
Q2 		$24K Buy
229
+92
+67% +$1.34K ﹤0.01% 3126
2017
Q1 		$6K Buy
137
+87
+174% +$1.19K ﹤0.01% 4430
2016
Q4 		$2K Sell
50
-510
-91% -$6.44K ﹤0.01% 5052
2016
Q3 		$64K Buy
560
+516
+1,173% +$6.03K ﹤0.01% 1902
2016
Q2 		$4K Sell
44
-66
-60% -$645 ﹤0.01% 4434
2016
Q1 		$5K Buy
+110
New +$907 ﹤0.01% 4089
2015
Q4 		– Sell
-110
Closed -$1K – 5726
2015
Q3 		$1K Hold
110
– – ﹤0.01% 5034
2015
Q2 		$2K Buy
110
+79
+255% +$918 ﹤0.01% 4294
2015
Q1 		$7K Sell
31
-2
-6% -$26 ﹤0.01% 3224
2014
Q4 		$8K Buy
+33
New +$378 ﹤0.01% 2736

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

Simplex Trading's IRWD Position: Q1 2026 in Review

Simplex Trading opened a new position in Ironwood Pharmaceuticals (IRWD) in Q1 2026: 17,724 shares worth $62.2K. The stake represents ﹤0.01% of the portfolio and ranks #5625 among its holdings. This is a return to the name: Simplex Trading previously reported a position in IRWD as recently as Q3 2025.

Simplex Trading first reported a position in IRWD in Q1 2015 and has held it in 30 quarters since. The position peaked at $714K in Q1 2021. 226 funds tracked by Wall St. Rank hold IRWD as of Q1 2026.

  • Simplex Trading held 17,724 shares of Ironwood Pharmaceuticals worth $62.2K as of Q1 2026.
  • Ironwood Pharmaceuticals was a new Simplex Trading position in Q1 2026.
  • Ironwood Pharmaceuticals made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #5625 holding.
  • Simplex Trading first reported a position in Ironwood Pharmaceuticals in Q1 2015 and has held it in 30 quarters since.
  • Simplex Trading's Ironwood Pharmaceuticals position peaked at $714K in Q1 2021.
  • 226 funds tracked by Wall St. Rank held Ironwood Pharmaceuticals as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.