Group One Trading
PTCT icon

Group One Trading’s PTC Therapeutics PTCT Stock Holding History

Group One 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 		$116K Buy
1,700
+1,300
+325% +$92.1K ﹤0.01% 4597
2025
Q4 		$30.4K Sell
400
-1,900
-83% -$138K ﹤0.01% 6015
2025
Q3 		$141K Sell
2,300
-6,700
-74% -$349K ﹤0.01% 5012
2025
Q2 		$440K Buy
+9,000
New +$427K ﹤0.01% 3551
2024
Q4 		– Sell
-8,800
Closed -$326K – 7821
2024
Q3 		$326K Buy
8,800
+3,400
+63% +$114K ﹤0.01% 3186
2024
Q2 		$165K Buy
5,400
+4,900
+980% +$159K ﹤0.01% 3557
2024
Q1 		$14.5K Sell
500
-4,900
-91% -$137K ﹤0.01% 5643
2023
Q4 		$149K Sell
5,400
-2,900
-35% -$66.3K ﹤0.01% 4132
2023
Q3 		$186K Sell
8,300
-33,400
-80% -$1.24M ﹤0.01% 3868
2023
Q2 		$1.7M Buy
41,700
+19,200
+85% +$939K 0.01% 1870
2023
Q1 		$1.09M Buy
22,500
+21,700
+2,713% +$992K ﹤0.01% 2058
2022
Q4 		$30.5K Buy
800
+100
+14% +$4.16K ﹤0.01% 5327
2022
Q3 		$35K Buy
+700
New +$34.3K ﹤0.01% 5688
2022
Q2 		– Sell
-5,100
Closed -$190K – 8381
2022
Q1 		$190K Buy
+5,100
New +$196K ﹤0.01% 4852
2021
Q4 		– Sell
-600
Closed -$22K – 8726
2021
Q3 		$22K Buy
600
+200
+50% +$8.21K ﹤0.01% 7120
2021
Q2 		$17K Sell
400
-24,100
-98% -$1.03M ﹤0.01% 7289
2021
Q1 		$1.16M Sell
24,500
-14,200
-37% -$843K ﹤0.01% 3051
2020
Q4 		$2.36M Buy
38,700
+14,600
+61% +$860K ﹤0.01% 1909
2020
Q3 		$1.13M Sell
24,100
-64,100
-73% -$3.16M ﹤0.01% 2082
2020
Q2 		$4.47M Buy
88,200
+68,400
+345% +$3.36M 0.02% 878
2020
Q1 		$883K Sell
19,800
-119,100
-86% -$6M 0.01% 1619
2019
Q4 		$6.67M Buy
138,900
+65,500
+89% +$2.78M 0.05% 523
2019
Q3 		$2.48M Buy
73,400
+48,800
+198% +$2.12M 0.02% 1047
2019
Q2 		$1.11M Buy
24,600
+12,500
+103% +$494K 0.01% 1518
2019
Q1 		$455K Sell
12,100
-1,700
-12% -$57.1K 0.01% 2028
2018
Q4 		$474K Sell
13,800
-2,500
-15% -$89.9K ﹤0.01% 2019
2018
Q3 		$766K Buy
16,300
+2,800
+21% +$116K 0.01% 1917
2018
Q2 		$455K Sell
13,500
-19,600
-59% -$611K ﹤0.01% 2373
2018
Q1 		$896K Sell
33,100
-44,800
-58% -$1.14M 0.01% 1612
2017
Q4 		$1.3M Sell
77,900
-79,700
-51% -$1.35M 0.01% 1506
2017
Q3 		$3.15M Buy
157,600
+70,500
+81% +$1.38M 0.03% 770
2017
Q2 		$1.6M Sell
87,100
-15,500
-15% -$209K 0.02% 1104
2017
Q1 		$1.01M Sell
102,600
-28,300
-22% -$343K 0.01% 1333
2016
Q4 		$1.43M Sell
130,900
-44,500
-25% -$467K 0.01% 1106
2016
Q3 		$2.46M Buy
175,400
+123,200
+236% +$1M 0.03% 741
2016
Q2 		$366K Sell
52,200
-46,300
-47% -$340K ﹤0.01% 1960
2016
Q1 		$634K Sell
98,500
-15,400
-14% -$267K 0.01% 1513
2015
Q4 		$3.69M Sell
113,900
-59,700
-34% -$1.76M 0.04% 506
2015
Q3 		$4.63M Buy
173,600
+164,600
+1,829% +$7.04M 0.06% 368
2015
Q2 		$433K Sell
9,000
-5,100
-36% -$298K 0.01% 1905
2015
Q1 		$858K Buy
14,100
+14,000
+14,000% +$854K 0.01% 1206
2014
Q4 		$5K Buy
+100
New +$4.4K ﹤0.01% 4485

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

Group One Trading's PTCT Position: Q1 2026 in Review

Group One Trading opened a new position in PTC Therapeutics (PTCT) in Q1 2026: 52,713 shares worth $3.59M. The stake represents 0.01% of the portfolio and ranks #1561 among its holdings. This is a return to the name: Group One Trading previously reported a position in PTCT as recently as Q3 2025.

Group One Trading first reported a position in PTCT in Q4 2014 and has held it in 32 quarters since. The position peaked at $9.5M in Q4 2017. 349 funds tracked by Wall St. Rank hold PTCT as of Q1 2026.

  • Group One Trading held 52,713 shares of PTC Therapeutics worth $3.59M as of Q1 2026.
  • PTC Therapeutics was a new Group One Trading position in Q1 2026.
  • PTC Therapeutics made up 0.01% of Group One Trading's portfolio in Q1 2026, its #1561 holding.
  • Group One Trading first reported a position in PTC Therapeutics in Q4 2014 and has held it in 32 quarters since.
  • Group One Trading's PTC Therapeutics position peaked at $9.5M in Q4 2017.
  • 349 funds tracked by Wall St. Rank held PTC Therapeutics as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.