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 		$266K Sell
3,900
-1,100
-22% -$77.9K ﹤0.01% 3953
2025
Q4 		$380K Buy
5,000
+1,300
+35% +$94.5K ﹤0.01% 3580
2025
Q3 		$227K Buy
3,700
+2,700
+270% +$141K ﹤0.01% 4785
2025
Q2 		$48K Buy
1,000
+300
+43% +$14.2K ﹤0.01% 5974
2025
Q1 		$35K Sell
700
-30,400
-98% -$1.52M ﹤0.01% 6115
2024
Q4 		$1.4M Buy
31,100
+30,900
+15,450% +$1.32M ﹤0.01% 2527
2024
Q3 		$7K Buy
+200
New +$6.7K ﹤0.01% 7448
2024
Q2 		– Sell
-900
Closed -$26K – 9602
2024
Q1 		$26K Sell
900
-1,500
-63% -$42K ﹤0.01% 6881
2023
Q4 		$66K Sell
2,400
-500
-17% -$11.4K ﹤0.01% 5823
2023
Q3 		$64K Hold
2,900
– – ﹤0.01% 5572
2023
Q2 		$117K Sell
2,900
-26,000
-90% -$1.27M ﹤0.01% 4881
2023
Q1 		$1.4M Buy
28,900
+28,800
+28,800% +$1.32M ﹤0.01% 2270
2022
Q4 		$3K Buy
+100
New +$4.16K ﹤0.01% 8414
2022
Q3 		– Sell
-800
Closed -$32K – 10685
2022
Q2 		$32K Buy
+800
New +$28.1K ﹤0.01% 7070
2021
Q4 		– Sell
-10,900
Closed -$476K – 11240
2021
Q3 		$476K Hold
10,900
– – ﹤0.01% 4174
2021
Q2 		$460K Buy
10,900
+10,899
+1,089,900% +$467K ﹤0.01% 4298
2021
Q1 		$4K Hold
1
– – ﹤0.01% 8289
2020
Q4 		$6K Sell
1
-345
-100% -$20.3K ﹤0.01% 7667
2020
Q3 		$1.62M Sell
346
-1
-0.3% -$49 ﹤0.01% 1729
2020
Q2 		$1.76M Sell
347
-244
-41% -$12K ﹤0.01% 1614
2020
Q1 		$2.64M Sell
591
-67
-10% -$3.37K ﹤0.01% 1079
2019
Q4 		$3.16M Buy
658
+316
+92% +$13.4K 0.01% 1110
2019
Q3 		$1.16M Buy
342
+205
+150% +$8.92K ﹤0.01% 1792
2019
Q2 		$616K Sell
137
-289
-68% -$11.4K ﹤0.01% 2382
2019
Q1 		$1.6M Buy
426
+405
+1,929% +$13.6K ﹤0.01% 1568
2018
Q4 		$72K Sell
21
-41
-66% -$1.47K ﹤0.01% 4176
2018
Q3 		$291K Sell
62
-150
-71% -$6.21K ﹤0.01% 3220
2018
Q2 		$715K Sell
212
-276
-57% -$8.61K ﹤0.01% 2112
2018
Q1 		$66K Buy
488
+294
+152% +$7.45K ﹤0.01% 2151
2017
Q4 		$26K Sell
194
-1,263
-87% -$21.4K ﹤0.01% 3070
2017
Q3 		$156K Buy
1,457
+267
+22% +$5.23K 0.01% 1369
2017
Q2 		$159K Buy
1,190
+344
+41% +$4.63K 0.01% 1374
2017
Q1 		$74K Buy
846
+468
+124% +$5.67K ﹤0.01% 2001
2016
Q4 		$111K Sell
378
-23
-6% -$241 0.01% 1450
2016
Q3 		$83K Buy
401
+238
+146% +$1.94K 0.01% 1684
2016
Q2 		$98K Buy
163
+41
+34% +$301 0.01% 1484
2016
Q1 		$277K Sell
122
-269
-69% -$4.67K 0.02% 697
2015
Q4 		$122K Sell
391
-106
-21% -$3.12K 0.01% 1206
2015
Q3 		$961K Buy
497
+330
+198% +$14.1K 0.07% 250
2015
Q2 		$247K Buy
167
+114
+215% +$6.65K 0.02% 700
2015
Q1 		$66K Buy
+53
New +$3.23K 0.01% 1362

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.