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 CEO2025-08-1314,948$64.15
$958.84kSell
Helen TorleyPRESIDENT AND CEO2025-08-135,052$64.83
$327.51kSell
Helen TorleyPRESIDENT AND CEO2025-08-1320,000$8.11
$162.20kBuy
Helen TorleyPRESIDENT AND CEO2025-08-1213,042$63.24
$824.80kSell
Helen TorleyPRESIDENT AND CEO2025-08-1220,000$8.11
$162.20kBuy
Helen TorleyPRESIDENT AND CEO2025-08-126,958$64.00
$445.32kSell
Helen TorleyPRESIDENT AND CEO2025-08-1118,717$63.01
$1.18MSell
Helen TorleyPRESIDENT AND CEO2025-08-111,283$63.60
$81.60kSell
Helen TorleyPRESIDENT AND CEO2025-08-1120,000$8.11
$162.20kBuy
Helen TorleyPRESIDENT AND CEO2025-07-1015,746$57.62
$907.24kSell

1 of 9

HALO insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when HALO insiders and whales buy or sell their stock.

HALO Shareholders

What type of owners hold Halozyme Therapeutics Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Randal J. Kirk22.77%26,633,924$1.91BInsider
Blackrock Inc11.29%13,200,032$948.03MInstitution
Vanguard Group Inc10.47%12,245,602$879.48MInstitution
State Street Corp5.07%5,935,045$426.25MInstitution
Gregory Ian Frost3.11%3,641,380$261.52MInsider
Invesco Ltd2.96%3,465,889$248.92MInstitution
Snyder Capital Management L P2.90%3,397,697$244.02MInstitution
Arrowstreet Capital Limited Partnership2.17%2,541,181$182.51MInstitution
Alliancebernstein LP2.10%2,455,268$176.34MInstitution
Geode Capital Management LLC2.08%2,432,509$174.70MInstitution

1 of 3

HALO vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
HALO77.20%22.80%Net SellingNet Selling
ROIV42.77%57.23%Net SellingNet Selling
TECH97.62%2.38%Net BuyingNet Buying
VRNA11.01%51.87%Net SellingNet Selling
MDGL26.14%73.86%Net BuyingNet Buying

Halozyme Therapeutics Stock Ownership FAQ

Who owns Halozyme Therapeutics?

Halozyme Therapeutics (NASDAQ: HALO) is owned by 100.23% institutional shareholders, 29.61% Halozyme Therapeutics insiders, and 0.00% retail investors. Randal J. Kirk is the largest individual Halozyme Therapeutics shareholder, owning 26.63M shares representing 22.77% of the company. Randal J. Kirk's Halozyme Therapeutics shares are currently valued at $1.91B.

If you're new to stock investing, here's how to buy Halozyme Therapeutics stock.
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.