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HALOHALO
20 quarters

Position history for WILLIAM BLAIR INVESTMENT MANAGEMENT, LLCWILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's holdings in HALOZYME THERAPEUTICS INC

Yes. William Blair Investment Management holds 2,511,050 shares of HALO (Halozyme Therapeutics), worth $196.5M, as of its Q2 2026 13F filing. It reduced the position by 14,925 shares (-0.6%) from Q1 2026. William Blair Investment Management has held HALO since Q4 2025, across 3 quarterly 13F filings. HALO is 0.6% of William Blair Investment Management's reported 13F portfolio.

Current Value

$196.5M

Current Shares

2.5M

Total Value Change

+$190M

Total Shares Change

+2.1M

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Decreased
2.5M
-0.6%
$196.5M0.6%$78.27
0
2026-Q1
Increased
2.5M
+37.1%
$163.3M0.5%$64.63
56
2025-Q4
New
1.8M
-
$124M0.3%$67.30
50
2023-Q1
Exited
0
-100.0%
$00.0%$38.19
0
2022-Q4
Decreased
3.7M
-16.5%
$210.9M0.8%$56.90
0
2022-Q3
Decreased
4.4M
-2.9%
$175.4M0.7%$39.54
0
2022-Q2
Decreased
4.6M
-14.5%
$200.9M0.7%$44.00
0
2022-Q1
Increased
5.3M
+5.3%
$213M0.6%$39.88
45
2021-Q4
Increased
5.1M
+1.5%
$204M0.6%$40.21
44
2021-Q3
Increased
5M
+2.3%
$203.3M0.6%$40.68
44
2021-Q2
Decreased
4.9M
-8.5%
$221.7M0.7%$45.41
0
2021-Q1
Decreased
5.3M
-16.1%
$222.5M0.7%$41.69
0
2020-Q4
Decreased
6.4M
-2.4%
$271.7M0.9%$42.71
0
2020-Q3
Decreased
6.5M
-0.9%
$171.4M0.7%$26.28
0
2020-Q2
Increased
6.6M
+0.2%
$176.4M0.7%$26.81
43
2020-Q1
Increased
6.6M
+3.7%
$118.1M0.6%$17.99
44
2019-Q4
Increased
6.3M
+16.9%
$112.3M0.4%$17.73
42
2019-Q3
Increased
5.4M
+53.0%
$84M0.4%$15.51
50
2019-Q2
Increased
3.5M
+774.0%
$60.8M0.3%$17.18
57
2019-Q1
New
404,924
-
$6.5M0.0%$16.10
38

Other major holders of HALO: BlackRock, Inc., BlackRock Finance, Inc.

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