Twin Tree Management’s Halozyme HALO Stock Holding History

Twin Tree Management’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	$3.65M	Buy	46,600 +1,500	+3%	+$102K	0.07%	372
2026 Q1	$2.91M	Buy	+45,100	New	+$3.18M	0.06%	359
2025 Q3	–	Sell	-17,600	Closed	-$916K	–	1614
2025 Q2	$916K	Buy	+17,600	New	+$1M	﹤0.01%	1371
2025 Q1	–	Sell	-3,000	Closed	-$143K	–	1701
2024 Q4	$143K	Buy	+3,000	New	+$154K	﹤0.01%	1406
2021 Q3	–	Sell	-5,900	Closed	-$268K	–	1655
2021 Q2	$268K	Buy	+5,900	New	+$261K	﹤0.01%	1166

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

Twin Tree Management's HALO Position: Q2 2026 in Review

Twin Tree Management sold out of Halozyme (HALO) in Q2 2026, closing a stake of 10,248 shares — an estimated $699K sold.

Twin Tree Management first reported a position in HALO in Q4 2020 and held it in 12 quarters. The position peaked at $1.96M in Q4 2022. 671 funds tracked by Wall St. Rank hold HALO as of Q2 2026.

Twin Tree Management reported no remaining Halozyme position as of Q2 2026 after selling out during the quarter.
Twin Tree Management sold 10,248 Halozyme shares in Q2 2026, an estimated $699K.
Twin Tree Management first reported a position in Halozyme in Q4 2020 and held it in 12 quarters.
Twin Tree Management's Halozyme position peaked at $1.96M in Q4 2022.
671 funds tracked by Wall St. Rank held Halozyme as of Q2 2026.

Based on Twin Tree Management's 13F filing for Q2 2026, filed 12 Aug 2026.