XTX Topco’s PTC Therapeutics PTCT Stock Holding History

XTX Topco’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	$1.07M	Buy	+15,672	New	+$1.11M	0.02%	1358
2025 Q4	–	Sell	-7,410	Closed	-$455K	–	3694
2025 Q3	$455K	Buy	+7,410	New	+$386K	0.02%	1144
2025 Q2	–	Sell	-35,987	Closed	-$1.83M	–	3008
2025 Q1	$1.83M	Buy	35,987 +22,764	+172%	+$1.14M	0.09%	285
2024 Q4	$597K	Buy	+13,223	New	+$566K	0.05%	620
2024 Q3	–	Sell	-30,971	Closed	-$947K	–	2497
2024 Q2	$947K	Buy	+30,971	New	+$1M	0.08%	378
2023 Q4	–	Sell	-16,489	Closed	-$370K	–	2020
2023 Q3	$370K	Buy	+16,489	New	+$613K	0.06%	587
2021 Q3	–	Sell	-4,853	Closed	-$205K	–	992
2021 Q2	$205K	Sell	4,853 -1,940	-29%	-$83.1K	0.07%	552
2021 Q1	$322K	Buy	+6,793	New	+$403K	0.16%	244

Other funds holding PTCT

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

RTW Investments New York $10B AUM 135.35% 1-Year Est. Return

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 Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

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, Ontario, Ontario, Canada $69.7B AUM 40.86% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Armistice Capital New York $5.62B AUM 36.06% 1-Year Est. Return

XTX Topco's PTCT Position: Q1 2026 in Review

XTX Topco opened a new position in PTC Therapeutics (PTCT) in Q1 2026: 15,672 shares worth $1.07M. The stake represents 0.02% of the portfolio and ranks #1358 among its holdings. This is a return to the name: XTX Topco previously reported a position in PTCT as recently as Q3 2025.

XTX Topco first reported a position in PTCT in Q1 2021 and has held it in 8 quarters since. The position peaked at $1.83M in Q1 2025. 349 funds tracked by Wall St. Rank hold PTCT as of Q1 2026.

XTX Topco held 15,672 shares of PTC Therapeutics worth $1.07M as of Q1 2026.
PTC Therapeutics was a new XTX Topco position in Q1 2026.
PTC Therapeutics made up 0.02% of XTX Topco's portfolio in Q1 2026, its #1358 holding.
XTX Topco first reported a position in PTC Therapeutics in Q1 2021 and has held it in 8 quarters since.
XTX Topco's PTC Therapeutics position peaked at $1.83M in Q1 2025.
349 funds tracked by Wall St. Rank held PTC Therapeutics as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.