Halozyme Therapeutics, Inc.

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC HALO

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/9/2026

Shares

1,842,956

Value ($000)

124,031

Weight

0.3%

2019 Q4 - 2025 Q4 (14 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/9/2026	124,031	0.3%	1,842,956	12/31/2025
2022 Q4	2/9/2023	210,872	0.8%	3,706,003	12/31/2022
2022 Q3	11/9/2022	175,403	0.7%	4,436,084	9/30/2022
2022 Q2	8/10/2022	200,942	0.7%	4,566,871	6/30/2022
2022 Q1	5/11/2022	212,955	0.6%	5,339,891	3/31/2022
2021 Q4	2/14/2022	204,012	0.6%	5,073,665	12/31/2021
2021 Q3	11/10/2021	203,266	0.6%	4,996,708	9/30/2021
2021 Q2	8/12/2021	221,714	0.7%	4,882,486	6/30/2021
2021 Q1	5/13/2021	222,519	0.7%	5,337,462	3/31/2021
2020 Q4	2/9/2021	271,736	0.9%	6,362,344	12/31/2020
2020 Q3	11/6/2020	171,359	0.7%	6,520,526	9/30/2020
2020 Q2	8/12/2020	176,373	0.7%	6,578,612	6/30/2020
2020 Q1	5/8/2020	118,079	0.6%	6,563,606	3/31/2020
2019 Q4	2/12/2020	112,258	0.4%	6,331,530	12/31/2019