Halozyme Therapeutics, Inc. (HALO) Insider Trading

Over the last 3 months, HALO insiders made 0 open-market buys and 32 sales, a net sale of -$12.2M (SEC Form 4). Over the last 6 months, 482 institutions increased and 451 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
32
Net (3m)
-$12.2M
Insider trades by month Buys Sells
Jan
Feb
Mar
Apr
May
Jun
Context3-month price +6.3%Institutions mixed (13F)
DateInsiderTypeSharesPrice
Jun 3, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell5,401$68.35
Jun 3, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell400$66.37
Jun 3, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell1,610$66.39
Jun 3, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell2,000$68.74
Jun 3, 2026Torley Helendirector, officer: PRESIDENT AND CEOOption10,000$12.07
Jun 3, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell3,400$66.75
Jun 3, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell6,100$69.69
Jun 3, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell12,989$67.41
Jun 3, 2026Torley Helendirector, officer: PRESIDENT AND CEOOption20,000$12.07
Jun 3, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell16,600$66.31
Jun 3, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell1,500$67.67
Jun 2, 2026Connaughton BernadettedirectorSell1,625$66.21
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell100$67.85
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell9,802$71.37
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOOption20,000$12.07
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell6,700$66.33
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOOption10,000$12.07
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell600$70.81
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell5,900$72.15
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell3,575$65.46
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell3,350$68.88
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell9,725$64.63
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell2,800$73.12
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell3,950$69.79
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell1,398$70.29
May 13, 2026Torley Helendirector, officer: PRESIDENT AND CEOSell2,100$68.10
May 7, 2026DUNCAN BARBARA GAYLEdirectorGrant3,796—
May 7, 2026Posard Matthew L.directorGrant6,040$65.87
May 7, 2026Krishnan MaheshdirectorGrant3,796—
May 7, 2026DUNCAN BARBARA GAYLEdirectorGrant6,040$65.87

Source: HALO SEC Form 4 filings, latest Jun 3, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their HALO positions over the last 6 months (SEC Form 13F).

Increased
482
New positions
181
Reduced
451
Sold out
149
Largest moves
InstitutionActionSharesFiled
BLACKROCK, INC.Increased13.3MMay 13, 2026
BLACKROCK, INC.Increased13.2MFeb 12, 2026
VANGUARD GROUP INCReduced11.6MJan 29, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position5.3MMay 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position5.2MMay 8, 2026
STATE STREET CORPIncreased5.1MFeb 13, 2026
STATE STREET CORPReduced4.9MMay 15, 2026
INVESCO LTD.Increased4.0MMay 12, 2026
INVESCO LTD.Increased3.6MFeb 19, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPReduced3.2MFeb 13, 2026
BANK OF AMERICA CORP /DE/Increased2.9MMay 18, 2026
BANK OF AMERICA CORP /DE/Increased2.7MFeb 17, 2026
BOSTON PARTNERSIncreased2.7MMay 11, 2026
MORGAN STANLEYIncreased2.7MFeb 13, 2026
MORGAN STANLEYReduced2.6MMay 15, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.

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