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 CEO2026-04-065,900$63.14
$372.52kSell
Helen TorleyPRESIDENT AND CEO2026-04-064,100$64.02
$262.46kSell
Helen TorleyPRESIDENT AND CEO2026-04-0610,000$12.07
$120.70kBuy
Helen TorleyPRESIDENT AND CEO2026-04-0220,000$12.07
$241.40kBuy
Helen TorleyPRESIDENT AND CEO2026-04-0215,800$64.06
$1.01MSell
Helen TorleyPRESIDENT AND CEO2026-04-024,200$64.89
$272.53kSell
Helen TorleyPRESIDENT AND CEO2026-04-011,000$65.71
$65.71kSell
Helen TorleyPRESIDENT AND CEO2026-04-0120,000$12.07
$241.40kBuy
Helen TorleyPRESIDENT AND CEO2026-04-0119,000$65.36
$1.24MSell
Cortney CaudillSVP CHIEF OPERATING OFFICER2026-03-101,546$33.51
$51.81kBuy

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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. Kirk22.57%26,633,924$1.81BInsider
Blackrock Inc11.15%13,153,857$895.12MInstitution
Vanguard Group Inc9.80%11,566,896$787.13MInstitution
State Street Corp4.34%5,121,672$348.53MInstitution
Invesco Ltd3.09%3,648,063$248.25MInstitution
Gregory Ian Frost3.09%3,641,380$247.80MInsider
Arrowstreet Capital Limited Partnership2.73%3,222,507$219.29MInstitution
Bank Of America Corp2.32%2,733,832$186.04MInstitution
Morgan Stanley2.25%2,658,299$180.90MInstitution
Geode Capital Management LLC2.06%2,433,193$165.58MInstitution

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HALO vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
HALO78.05%21.95%Net SellingNet Selling
CYTK90.01%9.99%Net SellingNet Selling
IBRX16.47%7.45%Net BuyingNet Buying
KRYS80.01%19.99%Net SellingNet Selling
NUVL77.47%22.53%Net SellingNet Selling

Halozyme Therapeutics Stock Ownership FAQ

Who owns Halozyme Therapeutics?

Halozyme Therapeutics (NASDAQ: HALO) is owned by 104.51% institutional shareholders, 29.39% Halozyme Therapeutics insiders, and 0.00% retail investors. Randal J. Kirk is the largest individual Halozyme Therapeutics shareholder, owning 26.63M shares representing 22.57% of the company. Randal J. Kirk's Halozyme Therapeutics shares are currently valued at $1.81B.

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