NASDAQ: HALO
Halozyme Therapeutics Inc Stock Ownership - Who owns Halozyme Therapeutics?

Insider buying vs selling

Have Halozyme Therapeutics Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Helen TorleyPRESIDENT AND CEO2025-12-01500$70.36
$35.18kSell
Bernadette ConnaughtonDirector2025-12-01829$71.60
$59.36kSell
Helen TorleyPRESIDENT AND CEO2025-12-01261$71.60
$18.69kSell
Helen TorleyPRESIDENT AND CEO2025-12-0110,406$68.51
$712.94kSell
Helen TorleyPRESIDENT AND CEO2025-12-015,402$69.44
$375.12kSell
Helen TorleyPRESIDENT AND CEO2025-12-0116,569$8.11
$134.37kBuy
Helen TorleyPRESIDENT AND CEO2025-11-12498$71.67
$35.69kSell
Helen TorleyPRESIDENT AND CEO2025-11-1212,718$70.22
$893.03kSell
Helen TorleyPRESIDENT AND CEO2025-11-1220,000$8.11
$162.20kBuy
Helen TorleyPRESIDENT AND CEO2025-11-126,784$71.09
$482.27kSell

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Net Insider Buy/Sell (L12M) Ownership

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HALO Shareholders

What type of owners hold Halozyme Therapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Randal J. Kirk22.65%26,633,924$1.80BInsider
Blackrock Inc10.94%12,860,199$870.64MInstitution
Vanguard Group Inc9.89%11,629,786$787.34MInstitution
State Street Corp4.27%5,019,207$339.80MInstitution
Gregory Ian Frost3.10%3,641,380$246.52MInsider
Arrowstreet Capital Limited Partnership2.80%3,290,665$222.78MInstitution
Invesco Ltd2.76%3,245,770$219.74MInstitution
Ubs Group Ag2.50%2,945,751$199.43MInstitution
Snyder Capital Management L P2.32%2,733,844$185.08MInstitution
D E Shaw Co Inc2.25%2,650,375$179.43MInstitution

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HALO vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
HALO77.68%22.32%Net SellingNet Selling
CYTK90.23%9.77%Net SellingNet Selling
PRAX63.75%36.25%Net SellingNet Selling
NUVL75.78%24.22%Net SellingNet Selling
KRYS79.21%20.79%Net SellingNet Selling

Halozyme Therapeutics Stock Ownership FAQ

Who owns Halozyme Therapeutics?

Halozyme Therapeutics (NASDAQ: HALO) is owned by 102.40% institutional shareholders, 29.42% Halozyme Therapeutics insiders, and 0.00% retail investors. Randal J. Kirk is the largest individual Halozyme Therapeutics shareholder, owning 26.63M shares representing 22.65% of the company. Randal J. Kirk's Halozyme Therapeutics shares are currently valued at $1.79B.

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