13F Insight
DOSSIER · 13F Holders · Q1 2026Healthcare · Biological Products, (No Diagnostic Substances)Cheap mega-capRe-rated
HALO

HALOZYME THERAPEUTICS INC

663 institutions still hold HALOZYME THERAPEUTICS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 40637H109·Biological Products, (No Diagnostic Substances)·663 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 8.2%
vs prior quarter
13F value held
$4.1B
48.0% inst. owned
of float
Holders
663
+59 QoQ
filers reporting
Activity
+94 / −25
+963 added · −740 reduced
this quarter
Concentration
20.86%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

663 institutions reported HALO in Q1 2026. BlackRock, Inc. leads at 20.9% of the visible book. +59 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$857M13.3M0.01%Q1 202602
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$341M5.3M0.01%Q1 202603
Vanguard Portfolio Management
CIK 0002100121
$339M5.2M0.02%Q1 202604
STATE STREET CORP
CIK 0000093751
$319M4.9M0.01%Q1 202605
Invesco Ltd.
CIK 0000914208
$259M4.0M0.04%Q1 202606
BANK OF AMERICA CORP /DE/
CIK 0000070858
$188M2.9M0.01%Q1 202607
Boston Partners
CIK 0001386060
$173M2.7M0.18%Q1 202608
MORGAN STANLEY
CIK 0000895421
$166M2.6M0.01%Q1 202609
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
CIK 0001644956
$163M2.5M0.54%Q1 202610
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$162M2.5M0.01%Q1 202611
SNYDER CAPITAL MANAGEMENT L P
CIK 0001050477
$150M2.3M2.91%Q1 202612
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$134M2.1M0.03%Q1 202613
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$124M1.9M0.07%Q1 202614
ALLIANCEBERNSTEIN L.P.
CIK 0001109448
$117M1.7M0.04%Q1 202615
D. E. Shaw & Co., Inc.
CIK 0001009207
$111M1.6M0.06%Q4 202516
ROYAL LONDON ASSET MANAGEMENT LTD
CIK 0000863748
$104M1.6M0.22%Q1 202617
JUPITER ASSET MANAGEMENT LTD
CIK 0001215838
$104M1.6M0.55%Q1 202618
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$102M1.6M0.08%Q1 202619
WELLS FARGO & COMPANY/MN
CIK 0000072971
$99M1.5M0.02%Q1 202620
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$96M1.5M0.07%Q1 2026
Page 1 of 34
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