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 		$694K Buy
10,180
+9,639
+1,782% +$683K ﹤0.01% 2899
2025
Q4 		$41.1K Sell
541
-8,385
-94% -$609K ﹤0.01% 5842
2025
Q3 		$547K Buy
+8,926
New +$465K ﹤0.01% 3707
2023
Q3 		– Sell
-2,403
Closed -$89.4K – 9591
2023
Q2 		$97K Buy
+2,403
New +$118K ﹤0.01% 5123
2022
Q3 		– Sell
-8,427
Closed -$413K – 10684
2022
Q2 		$337K Buy
+8,427
New +$295K ﹤0.01% 3948
2021
Q4 		– Sell
-1,278
Closed -$55K – 11239
2021
Q3 		$55K Sell
1,278
-200
-14% -$8.21K ﹤0.01% 7411
2021
Q2 		$62K Buy
+1,478
New +$63.3K ﹤0.01% 7384
2020
Q2 		– Sell
-8,816
Closed -$433K – 8202
2020
Q1 		$393K Buy
+8,816
New +$444K ﹤0.01% 2852
2018
Q4 		– Sell
-23,895
Closed -$859K – 7642
2018
Q3 		$1.12M Buy
23,895
+19,734
+474% +$817K ﹤0.01% 1771
2018
Q2 		$140K Buy
+4,161
New +$130K ﹤0.01% 3893
2018
Q1 		– Sell
-12,350
Closed -$313K – 6717
2017
Q4 		$205K Sell
12,350
-21,700
-64% -$367K 0.01% 1252
2017
Q3 		$681K Buy
34,050
+6,883
+25% +$135K 0.03% 518
2017
Q2 		$497K Buy
27,167
+17,975
+196% +$242K 0.02% 658
2017
Q1 		$90K Sell
9,192
-12,123
-57% -$147K ﹤0.01% 1840
2016
Q4 		$232K Sell
21,315
-98,895
-82% -$1.04M 0.01% 943
2016
Q3 		$1.68M Buy
+120,210
New +$977K 0.11% 159
2016
Q1 		– Sell
-3,263
Closed -$56.6K – 6106
2015
Q4 		$105K Sell
3,263
-1,849
-36% -$54.4K 0.01% 1310
2015
Q3 		$136K Buy
+5,112
New +$219K 0.01% 1171

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.