XTX Topco’s Halozyme HALO Stock Holding History

XTX Topco’s Portfolio HALO Stock Details HALO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$363K	Buy	+5,611	New	+$396K	0.01%	2316
2025 Q4	–	Sell	-21,340	Closed	-$1.57M	–	3493
2025 Q3	$1.57M	Sell	21,340 -8,568	-29%	-$569K	0.08%	311
2025 Q2	$1.56M	Buy	29,908 +11,538	+63%	+$657K	0.06%	436
2025 Q1	$1.17M	Buy	18,370 +3,911	+27%	+$227K	0.06%	473
2024 Q4	$691K	Buy	+14,459	New	+$741K	0.06%	510
2023 Q4	–	Sell	-28,504	Closed	-$1.09M	–	1788
2023 Q3	$1.09M	Buy	28,504 +21,950	+335%	+$899K	0.19%	82
2023 Q2	$236K	Buy	+6,554	New	+$224K	0.04%	894
2021 Q2	–	Sell	-13,874	Closed	-$578K	–	920
2021 Q1	$578K	Buy	+13,874	New	+$633K	0.28%	61

Other funds holding HALO

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

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

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return

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

XTX Topco's HALO Position: Q1 2026 in Review

XTX Topco opened a new position in Halozyme (HALO) in Q1 2026: 5,611 shares worth $363K. The stake represents 0.01% of the portfolio and ranks #2316 among its holdings. This is a return to the name: XTX Topco previously reported a position in HALO as recently as Q3 2025.

XTX Topco first reported a position in HALO in Q1 2021 and has held it in 8 quarters since. The position peaked at $1.57M in Q3 2025. 634 funds tracked by Wall St. Rank hold HALO as of Q1 2026.

XTX Topco held 5,611 shares of Halozyme worth $363K as of Q1 2026.
Halozyme was a new XTX Topco position in Q1 2026.
Halozyme made up 0.01% of XTX Topco's portfolio in Q1 2026, its #2316 holding.
XTX Topco first reported a position in Halozyme in Q1 2021 and has held it in 8 quarters since.
XTX Topco's Halozyme position peaked at $1.57M in Q3 2025.
634 funds tracked by Wall St. Rank held Halozyme as of Q1 2026.

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