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 CEO2026-05-1310,000$12.07
$120.70kBuy
Helen TorleyPRESIDENT AND CEO2026-05-13600$70.81
$42.49kSell
Helen TorleyPRESIDENT AND CEO2026-05-133,950$69.79
$275.66kSell
Helen TorleyPRESIDENT AND CEO2026-05-133,350$68.88
$230.75kSell
Helen TorleyPRESIDENT AND CEO2026-05-132,100$68.10
$143.01kSell
Helen TorleyPRESIDENT AND CEO2026-05-129,802$71.37
$699.57kSell
Helen TorleyPRESIDENT AND CEO2026-05-125,900$72.15
$425.67kSell
Helen TorleyPRESIDENT AND CEO2026-05-122,800$73.12
$204.74kSell
Helen TorleyPRESIDENT AND CEO2026-05-1220,000$12.07
$241.40kBuy
Helen TorleyPRESIDENT AND CEO2026-05-12100$67.85
$6.78kSell

1 of 15

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. Kirk22.45%26,633,924$1.77BInsider
Blackrock Inc11.18%13,265,053$882.66MInstitution
Vanguard Capital Management LLC4.44%5,271,218$350.75MInstitution
Vanguard Portfolio Management LLC4.43%5,249,206$349.28MInstitution
State Street Corp4.16%4,937,854$328.56MInstitution
Invesco Ltd3.38%4,012,494$266.99MInstitution
Gregory Ian Frost3.07%3,641,380$242.30MInsider
Bank Of America Corp2.46%2,913,109$193.84MInstitution
Boston Partners2.26%2,683,683$178.57MInstitution
Morgan Stanley2.16%2,562,309$170.50MInstitution

1 of 3

HALO vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
HALO77.59%22.41%Net SellingNet Selling
IBRX16.99%7.31%Net BuyingNet Buying
TECH97.83%2.17%Net SellingNet Selling
CORT28.98%71.02%Net BuyingNet Buying
PCVX89.00%11.00%Net SellingNet Selling

Halozyme Therapeutics Stock Ownership FAQ

Who owns Halozyme Therapeutics?

Halozyme Therapeutics (NASDAQ: HALO) is owned by 101.30% institutional shareholders, 29.26% Halozyme Therapeutics insiders, and 0.00% retail investors. Randal J. Kirk is the largest individual Halozyme Therapeutics shareholder, owning 26.63M shares representing 22.45% of the company. Randal J. Kirk's Halozyme Therapeutics shares are currently valued at $1.77B.

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.