Magnetar Financial’s Halozyme HALO Stock Holding History

Magnetar Financial’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 Q2	$333K	Buy	+4,257	New	+$290K	﹤0.01%	738
2025 Q4	–	Sell	-12,216	Closed	-$896K	–	1048
2025 Q3	$896K	Buy	+12,216	New	+$811K	0.01%	480
2022 Q1	–	Sell	-5,740	Closed	-$231K	–	1413
2021 Q4	$231K	Sell	5,740 -9,516	-62%	-$355K	﹤0.01%	1128
2021 Q3	$621K	Buy	+15,256	New	+$638K	0.01%	840
2020 Q1	–	Sell	-13,422	Closed	-$238K	–	544
2019 Q4	$238K	Buy	+13,422	New	+$232K	0.01%	477

Other funds holding HALO

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

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

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return

Magnetar Financial's HALO Position: Q2 2026 in Review

Magnetar Financial opened a new position in Halozyme (HALO) in Q2 2026: 4,257 shares worth $333K. The stake represents ﹤0.01% of the portfolio and ranks #738 among its holdings. This is a return to the name: Magnetar Financial previously reported a position in HALO as recently as Q3 2025.

Magnetar Financial first reported a position in HALO in Q4 2019 and has held it in 5 quarters since. The position peaked at $896K in Q3 2025. 671 funds tracked by Wall St. Rank hold HALO as of Q2 2026.

Magnetar Financial held 4,257 shares of Halozyme worth $333K as of Q2 2026.
Halozyme was a new Magnetar Financial position in Q2 2026.
Halozyme made up ﹤0.01% of Magnetar Financial's portfolio in Q2 2026, its #738 holding.
Magnetar Financial first reported a position in Halozyme in Q4 2019 and has held it in 5 quarters since.
Magnetar Financial's Halozyme position peaked at $896K in Q3 2025.
671 funds tracked by Wall St. Rank held Halozyme as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.