Simplex Trading
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Simplex Trading’s PTC Therapeutics PTCT Stock Holding History

Simplex Trading’s Portfolio PTCT Stock Details PTCT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$518K Buy
7,600
+5,900
+347% +$418K ﹤0.01% 3211
2025
Q4 		$129K Sell
1,700
-2,800
-62% -$203K ﹤0.01% 4711
2025
Q3 		$276K Buy
4,500
+600
+15% +$31.3K ﹤0.01% 4578
2025
Q2 		$190K Buy
3,900
+1,900
+95% +$90.2K ﹤0.01% 4563
2025
Q1 		$101K Buy
2,000
+400
+25% +$20K ﹤0.01% 5048
2024
Q4 		$72K Buy
+1,600
New +$68.5K ﹤0.01% 5493
2024
Q3 		– Sell
-23,400
Closed -$715K – 9345
2024
Q2 		$715K Buy
23,400
+22,000
+1,571% +$713K ﹤0.01% 3268
2024
Q1 		$40K Sell
1,400
-115,200
-99% -$3.23M ﹤0.01% 6476
2023
Q4 		$3.21M Buy
116,600
+84,900
+268% +$1.94M ﹤0.01% 1937
2023
Q3 		$710K Buy
31,700
+15,600
+97% +$580K ﹤0.01% 3027
2023
Q2 		$654K Sell
16,100
-7,300
-31% -$357K ﹤0.01% 3027
2023
Q1 		$1.13M Buy
23,400
+22,800
+3,800% +$1.04M ﹤0.01% 2484
2022
Q4 		$22K Sell
600
-1,700
-74% -$70.7K ﹤0.01% 6789
2022
Q3 		$115K Sell
2,300
-9,100
-80% -$446K ﹤0.01% 5326
2022
Q2 		$456K Buy
11,400
+11,000
+2,750% +$386K ﹤0.01% 3548
2022
Q1 		$14K Buy
+400
New +$15.4K ﹤0.01% 8601
2021
Q2 		– Sell
-143
Closed -$677K – 10574
2021
Q1 		$677K Buy
143
+30
+27% +$1.78K ﹤0.01% 2923
2020
Q4 		$689K Sell
113
-309
-73% -$18.2K ﹤0.01% 3033
2020
Q3 		$1.97M Buy
422
+100
+31% +$4.92K ﹤0.01% 1547
2020
Q2 		$1.63M Sell
322
-35
-10% -$1.72K ﹤0.01% 1685
2020
Q1 		$1.59M Sell
357
-81
-18% -$4.08K ﹤0.01% 1470
2019
Q4 		$2.1M Sell
438
-365
-45% -$15.5K ﹤0.01% 1436
2019
Q3 		$2.71M Buy
803
+737
+1,117% +$32.1K 0.01% 1089
2019
Q2 		$297K Sell
66
-101
-60% -$3.99K ﹤0.01% 3083
2019
Q1 		$628K Buy
167
+114
+215% +$3.83K ﹤0.01% 2423
2018
Q4 		$181K Sell
53
-27
-34% -$971 ﹤0.01% 3255
2018
Q3 		$376K Buy
80
+26
+48% +$1.08K ﹤0.01% 2924
2018
Q2 		$182K Sell
54
-364
-87% -$11.4K ﹤0.01% 3606
2018
Q1 		$84K Buy
418
+341
+443% +$8.64K ﹤0.01% 1943
2017
Q4 		$13K Sell
77
-354
-82% -$5.99K ﹤0.01% 3686
2017
Q3 		$102K Buy
431
+231
+116% +$4.52K ﹤0.01% 1690
2017
Q2 		$67K Sell
200
-380
-66% -$5.12K ﹤0.01% 2113
2017
Q1 		$87K Sell
580
-654
-53% -$7.92K ﹤0.01% 1871
2016
Q4 		$257K Buy
1,234
+614
+99% +$6.44K 0.02% 883
2016
Q3 		$163K Buy
620
+220
+55% +$1.79K 0.01% 1174
2016
Q2 		$23K Sell
400
-302
-43% -$2.21K ﹤0.01% 2784
2016
Q1 		$18K Buy
702
+303
+76% +$5.26K ﹤0.01% 2911
2015
Q4 		$104K Sell
399
-143
-26% -$4.21K 0.01% 1321
2015
Q3 		$152K Buy
542
+277
+105% +$11.8K 0.01% 1097
2015
Q2 		$47K Buy
265
+180
+212% +$10.5K ﹤0.01% 1746
2015
Q1 		$65K Buy
+85
New +$5.19K 0.01% 1380

Other funds holding PTCT

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Toronto Dominion Bank
Toronto Dominion Bank Toronto, Ontario, Ontario, Canada $69.7B AUM 40.86% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
AC
Armistice Capital New York $5.62B AUM 36.06% 1-Year Est. Return

Simplex Trading's PTCT Position: Q1 2026 in Review

Simplex Trading increased its PTC Therapeutics (PTCT) stake by 1,782% in Q1 2026, buying an estimated $683K and bringing the position to 10,180 shares worth $694K. The position accounts for ﹤0.01% of the portfolio, ranked #2899.

Simplex Trading first reported a position in PTCT in Q3 2015 and has held it in 18 quarters since. The position peaked at $1.68M in Q3 2016. 349 funds tracked by Wall St. Rank hold PTCT as of Q1 2026.

  • Simplex Trading held 10,180 shares of PTC Therapeutics worth $694K as of Q1 2026.
  • Simplex Trading bought 9,639 PTC Therapeutics shares in Q1 2026, an estimated $683K.
  • PTC Therapeutics made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #2899 holding.
  • Simplex Trading first reported a position in PTC Therapeutics in Q3 2015 and has held it in 18 quarters since.
  • Simplex Trading's PTC Therapeutics position peaked at $1.68M in Q3 2016.
  • 349 funds tracked by Wall St. Rank held PTC Therapeutics as of Q1 2026.

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