Form4insider filings, from the source

Company · CIK 0001159036 · SIC 2836 — Biological Products, (No Diagnostic Substances) · Nasdaq

HALOZYME THERAPEUTICS, INC. · HALO

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $8.5M · 2net −$8.5M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 18Sep 23Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 16, 2026 SForm 4 →Sep 17, 5:19 pm EDTMatthew L. PosardDirector18,996$107.74$2,046,58158,839−24.4%10b5-1
Sep 9, 2026 SForm 4 →Sep 11, 8:35 pm EDTHelen TorleyPRESIDENT AND CEO, Director60,000$107.28$6,436,711767,780−7.25%10b5-1
Sep 9, 2026 MForm 4 →Sep 11, 8:35 pm EDTHelen TorleyPRESIDENT AND CEO, Director60,000$18.41$1,104,600787,780—10b5-1
Sep 1, 2026 AForm 4 →Sep 2, 4:59 pm EDTDannielle AppelhansDirector1,161——1,161—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 9, 2026 MForm 4 →Sep 11, 8:35 pm EDTHelen TorleyPRESIDENT AND CEO, Director60,000$18.41$1,104,60081,552—10b5-1
Sep 1, 2026 AForm 4 →Sep 2, 4:59 pm EDTDannielle AppelhansDirector1,778——1,778—