Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

HALOZYME THERAPEUTICS, INC.

CIK 0001159036HALO· quarter ending 2026-06-30

Shares outstanding

113,498,000

as of 2026-07-31 · 10-Q cover page, filed 2026-08-06

Held by 13F filers

207,998,931

selection includes debt or preferreds — no % of shares outstanding

Holders

+4 vs 2026-03-31 · 8 new, 4 exited

Value

$233.6M

shares +2.3% vs prior quarter

13F holdings exceed the share count. This is normal for heavily shorted stocks: shares lent to short sellers are reported by the lender and again by whoever bought them. Related filers occasionally report the same position twice as well.

Share classes (cover page of the 10-Q filed 2026-08-06, as of 2026-07-31)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	HALO · NASDAQ	113,498,000	124,271,848	109.5%	674	40637H109

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
40637H109	COM	674	124,271,848	113,498,000	109.5%	$9.7B	8 call / 7 put	13DG	holders →
40637HAF6	NOTE 1.000% 8/1not common	53	27,387,100 $430.0M principal	—	—	$643.1M	—	NPORT	holders →
40637HAD1	NOTE 0.250% 3/0not common	52	19,274,931 $188.7M principal	—	—	$233.6M	—	NPORT	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings. 2 further CUSIPs map to this company (mostly bonds) but no 13F filer held them this quarter.

Top holders (52 of 52 · 40637HAD1)

change vs 2026-03-31

#	Filer	Shares / principal	% of class	Value	Change
1	M&G PLC	39,036,000	—	$43.3M	+1,933,000 (+5.2%)
2	STEELHEAD PARTNERS LLC	35,000,000	—	$39.1M	+15,947,000 (+83.7%)
3	JPMORGAN CHASE & CO	14,425,000	—	$16.0M	-3,711,000 (-20.5%)
4	CITADEL ADVISORS LLC	11,942,000	—	$13.3M	-7,513,000 (-38.6%)
5	SILVERBACK ASSET MANAGEMENT LLC	11,134,000	—	$12.4M	—
6	DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	10,650,000	—	$11.8M	—
7	TPG GP A, LLC	10,000,000	—	$11.1M	—
8	CITIGROUP INC	8,360,000	—	$9.3M	-1,786,000 (-17.6%)
9	Point72 Asset Management, L.P.	7,500,000	—	$8.4M	—
10	Balyasny Asset Management L.P.	6,200,000	—	$6.9M	—
11	ADVENT CAPITAL MANAGEMENT /DE/	5,675,000	—	$6.3M	+2,843,000 (+100.4%)
12	MacKay Shields LLC	5,407,000	—	$6.0M	-9,000 (-0.2%)
13	Calamos Advisors LLC	5,375,000	—	$6.0M	-288,000 (-5.1%)
14	PIER 88 INVESTMENT PARTNERS LLC	5,110,000	—	$5.7M	+2,140,000 (+72.1%)
15	RATIONAL ADVISORS, INC.	5,110,000	—	$5.7M	+2,140,000 (+72.1%)
16	Focus Partners Wealth	3,711,000	—	$4.1M	-40,000 (-1.1%)
17	UBS Group AG	3,213,000	—	$3.6M	+3,149,000 (+4920.3%)
18	GOLDMAN SACHS GROUP INC	2,833,000	—	$3.1M	NEW
19	FMR LLC	2,363,000	—	$2.6M	+20,000 (+0.9%)
20	BNP PARIBAS ASSET MANAGEMENT Holding S.A.	2,325,000	—	$2.6M	-325,000 (-12.3%)
21	Aequim Alternative Investments LP	2,000,000	—	$2.2M	—
22	NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	1,800,000	—	$2.0M	NEW
23	Man Group plc	1,730,000	—	$1.9M	-130,000 (-7.0%)
24	WELLS FARGO & COMPANY/MN	1,427,000	—	$1.6M	-20,000 (-1.4%)
25	Ares Systematic Credit Ltd	1,400,000	—	$1.6M	NEW
26	SSI INVESTMENT MANAGEMENT LLC	1,300,000	—	$1.4M	—
27	Universal- Beteiligungs- und Servicegesellschaft mbH	750,000	—	$837K	—
28	BANK OF MONTREAL /CAN/	634,000	—	$547K	—
29	Axxion S.A.	400,000	—	$505K	NEW
30	Calamos Wealth Management LLC	272,000	—	$304K	+6,000 (+2.3%)
31	OPPENHEIMER ASSET MANAGEMENT INC.	173,000	—	$192K	+3,000 (+1.8%)
32	&PARTNERS	130,000	—	$144K	—
33	Cutler Capital Management, LLC	110,000	—	$122K	—
34	Jefferies Financial Group Inc.	100,000	—	$112K	NEW
35	Mariner, LLC	59,000	—	$66K	—
36	Capital Investment Advisory Services, LLC	59,000	—	$66K	—
37	STEPHENS INC /AR/	53,000	—	$59K	—
38	TRUIST FINANCIAL CORP	38,000	—	$42K	—
39	BARCLAYS PLC	34,000	—	$38K	NEW
40	WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	20,000	—	$22K	+3,000 (+17.6%)
41	AMERIPRISE FINANCIAL INC	18,000	—	$20K	-4,000 (-18.2%)
42	COMMONWEALTH EQUITY SERVICES, LLC	17,000	—	$19K	-3,000 (-15.0%)
43	INSIGNEO ADVISORY SERVICES, LLC	17,000	—	$19K	NEW
44	MORGAN STANLEY	15,000	—	$17K	—
45	MAI Capital Management	15,000	—	$17K	—
46	Goldstein Advisors, LLC	14,000	—	$16K	—
47	RAYMOND JAMES FINANCIAL INC	13,000	—	$14K	-5,000 (-27.8%)
48	Cetera Investment Advisers	12,000	—	$13K	—
49	Balboa Wealth Partners	10,000	—	$11K	-18,000 (-64.3%)
50	LANARK FINANCIAL, INC.	8,000	—	$9K	NEW
51	LAFFER TENGLER INVESTMENTS, INC.	1,931	—	$2.2M	-37 (-1.9%)
52	Erste Asset Management GmbH	0	—	$0	—

Exited since 2026-03-31 (4 filers; largest 4 shown)

Nuveen, LLC	−12,340,000
WATER ISLAND CAPITAL LLC	−3,000,000
Kohlberg Kravis Roberts & Co. L.P.	−915,000
MML INVESTORS SERVICES, LLC	−18,000

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Vanguard Capital Management	SCHEDULE 13G	2026-04-30	2026-03-31	6,173,547	5.21%
The Vanguard Group	SCHEDULE 13G/A	2026-03-27	2026-03-13	0	0%
BlackRock, Inc.	SCHEDULE 13G/A	2025-07-17	2025-06-30	12,612,300	10.2%
STATE STREET CORPORATION	SCHEDULE 13G	2025-05-13	2025-03-31	6,053,007	4.9%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.