XTX Topco’s Boundless Bio BOLD Stock Holding History

XTX Topco’s Portfolio BOLD Stock Details BOLD Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$83.4K	Sell	33,361 -1,310	-4%	-$2.02K	﹤0.01%	3580
2026 Q1	$38.1K	Sell	34,671 -4,906	-12%	-$5.74K	﹤0.01%	3399
2025 Q4	$47.5K	Buy	39,577 +10,496	+36%	+$13.1K	﹤0.01%	2851
2025 Q3	$35.8K	Sell	29,081 -10,983	-27%	-$12.7K	﹤0.01%	2232
2025 Q2	$40.5K	Buy	40,064 +14,147	+55%	+$18.8K	﹤0.01%	2058
2025 Q1	$39.1K	Buy	+25,917	New	+$53.7K	﹤0.01%	2030

Other funds holding BOLD

Arch Venture Management Chicago, Illinois $1.1B AUM 356.62% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

TCM

Tang Capital Management San Diego, California $2.2B AUM 156.35% 1-Year Est. Return

ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return

Cormorant Asset Management Boston, Massachusetts $1.95B AUM 773.9% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Alyeska Investment Group Chicago, Illinois $38.9B AUM 28.51% 1-Year Est. Return

XTX Topco's BOLD Position: Q2 2026 in Review

XTX Topco reduced its Boundless Bio (BOLD) stake by 3.8% in Q2 2026, selling an estimated $2.02K and leaving 33,361 shares worth $83.4K. The position accounts for ﹤0.01% of the portfolio, ranked #3580.

XTX Topco first reported a position in BOLD in Q1 2025 and has held it in 6 quarters since. 40 funds tracked by Wall St. Rank hold BOLD as of Q2 2026.

XTX Topco held 33,361 shares of Boundless Bio worth $83.4K as of Q2 2026.
XTX Topco sold 1,310 Boundless Bio shares in Q2 2026, an estimated $2.02K.
Boundless Bio made up ﹤0.01% of XTX Topco's portfolio in Q2 2026, its #3580 holding.
XTX Topco first reported a position in Boundless Bio in Q1 2025 and has held it in 6 quarters since.
40 funds tracked by Wall St. Rank held Boundless Bio as of Q2 2026.

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