XTX Topco’s Regenxbio RGNX Stock Holding History

XTX Topco’s Portfolio RGNX Stock Details RGNX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.29M	Buy	107,300 +73,400	+217%	+$609K	0.02%	1555
2026 Q1	$284K	Buy	+33,900	New	+$356K	﹤0.01%	2530
2025 Q2	–	Sell	-35,953	Closed	-$257K	–	3029
2025 Q1	$257K	Sell	35,953 -72,167	-67%	-$537K	0.01%	1521
2024 Q4	$836K	Buy	108,120 +94,943	+721%	+$891K	0.07%	404
2024 Q3	$138K	Sell	13,177 -39,474	-75%	-$481K	0.01%	1546
2024 Q2	$616K	Buy	52,651 +39,358	+296%	+$613K	0.05%	555
2024 Q1	$280K	Buy	+13,293	New	+$237K	0.04%	916
2023 Q4	–	Sell	-22,019	Closed	-$362K	–	2041
2023 Q3	$362K	Buy	+22,019	New	+$399K	0.06%	598
2021 Q2	–	Sell	-6,848	Closed	-$234K	–	1043
2021 Q1	$234K	Buy	+6,848	New	+$292K	0.11%	417

Other funds holding RGNX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Redmile Group San Francisco, California $1.49B AUM 208.7% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

XTX Topco's RGNX Position: Q2 2026 in Review

XTX Topco increased its Regenxbio (RGNX) stake by 217% in Q2 2026, buying an estimated $609K and bringing the position to 107,300 shares worth $1.29M. The position accounts for 0.02% of the portfolio, ranked #1555.

XTX Topco first reported a position in RGNX in Q1 2021 and has held it in 9 quarters since. 165 funds tracked by Wall St. Rank hold RGNX as of Q2 2026.

XTX Topco held 107,300 shares of Regenxbio worth $1.29M as of Q2 2026.
XTX Topco bought 73,400 Regenxbio shares in Q2 2026, an estimated $609K.
Regenxbio made up 0.02% of XTX Topco's portfolio in Q2 2026, its #1555 holding.
XTX Topco first reported a position in Regenxbio in Q1 2021 and has held it in 9 quarters since.
165 funds tracked by Wall St. Rank held Regenxbio as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.