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HALO · Halozyme Therapeutics, Inc.

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Market Cap
$12.37B
Shares
113.50M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 669
Total Value: $9,696,546,547
Total Shares: 123,940,733
Showing 1–100 of 682 holdings by value · page 1 of 7

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 669 13F filers · Δ vs Mar 31, 2026
Top Holder
10.7%
Sep 2023 → Jun 2026 · range 10.6% – 14.9%
−0.2 pts
Top 5
26.1%
Sep 2023 → Jun 2026 · range 26.1% – 40.0%
−1.0 pts
Top 10
36.9%
Sep 2023 → Jun 2026 · range 36.9% – 52.5%
−1.1 pts
HHI
249
Sep 2023 → Jun 2026 · range 249 – 470
Broadly held−9

Quarterly Activity

vs Mar 31, 2026
New
108
Increased
270
Decreased
205
Sold Out
76
Unchanged
86
Holder count: +32
Institutional value: +24.0%
Shares held: +2.4%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 682
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1159036 CUSIP 40637H109 13F (30d) 408 filings 386 filers Visit website Investor relations