LYTIR

Company · HALO

Halozyme Therapeutics, Inc.

Name as listed on its exchange; filed with the SEC as HALOZYME THERAPEUTICS, INC.

Nasdaq's symbol directory lists HALO on Nasdaq as “Halozyme Therapeutics, Inc. - Common Stock”.

In the 12 months to Nov 8, 2026: insiders sold on 15 occasions ($22.9M); 1 planned-sale notice; 2 congressional trade disclosures; 5 company reports (Form 8-K, since May 26, 2026).

All insider filings at the SEC

Insider purchases and sales, by month (last 12 months)Insider purchases: $0 in total; Insider sales: $22.9M in total.Jun: Insider sales $548KJul: Insider sales $278KAug: Insider sales $6.4MSep: Insider sales $8.5MOct: Insider sales $7.2MDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $0Insider sales below: $22.9M
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. Torley Helen, PRESIDENT AND CEO sold on 10 days all under a 10b5-1 plan latest Oct 8, 2026 sold $19.5M
  2. Posard Matthew L. sold on 2 days all under a 10b5-1 plan latest Oct 1, 2026 sold $2.6M
  3. Krishnan Mahesh sold on 1 day all under a 10b5-1 plan latest Jun 29, 2026 sold $548K
  4. Connaughton Bernadette sold on 2 days all under a 10b5-1 plan latest Aug 10, 2026 sold $292K
Every trade (15)
  1. SELLTorley Helen, PRESIDENT AND CEO sold Oct 8, 2026 20,000 shares 4 legs combined 10b5-1 plan (scheduled) filing $2.2M
  2. SELLTorley Helen, PRESIDENT AND CEO sold Oct 7, 2026 20,000 shares 4 legs combined 10b5-1 plan (scheduled) filing $2.2M
  3. SELLTorley Helen, PRESIDENT AND CEO sold Oct 6, 2026 20,000 shares 4 legs combined 10b5-1 plan (scheduled) filing $2.2M
  4. SELLPosard Matthew L. sold Oct 1, 2026 5,230 shares 4 legs combined 10b5-1 plan (scheduled) filing $568K
  5. SELLPosard Matthew L. sold Sep 16, 2026 18,996 shares 4 legs combined 10b5-1 plan (scheduled) filing $2.0M
  6. SELLTorley Helen, PRESIDENT AND CEO sold Sep 11, 2026 20,000 shares 2 legs combined 10b5-1 plan (scheduled) filing $2.1M
  7. SELLTorley Helen, PRESIDENT AND CEO sold Sep 10, 2026 20,000 shares 2 legs combined 10b5-1 plan (scheduled) filing $2.1M
  8. SELLTorley Helen, PRESIDENT AND CEO sold Sep 9, 2026 20,000 shares 3 legs combined 10b5-1 plan (scheduled) filing $2.1M
  9. SELLTorley Helen, PRESIDENT AND CEO sold Aug 19, 2026 20,000 shares 3 legs combined 10b5-1 plan (scheduled) filing $2.1M
  10. SELLTorley Helen, PRESIDENT AND CEO sold Aug 18, 2026 20,000 shares 3 legs combined 10b5-1 plan (scheduled) filing $2.1M
  11. SELLTorley Helen, PRESIDENT AND CEO sold Aug 17, 2026 20,000 shares 5 legs combined 10b5-1 plan (scheduled) filing $2.1M
  12. SELLConnaughton Bernadette sold Aug 10, 2026 1,626 shares 10b5-1 plan (scheduled) filing $167K
  13. SELLTorley Helen, PRESIDENT AND CEO sold Jul 8, 2026 1,923 shares 2 legs combined 10b5-1 plan (scheduled) filing $153K
  14. SELLConnaughton Bernadette sold Jul 1, 2026 1,625 shares 2 legs combined 10b5-1 plan (scheduled) filing $125K
  15. SELLKrishnan Mahesh sold Jun 29, 2026 7,304 shares 10b5-1 plan (scheduled) filing $548K

Planned sales · SEC Form 144

Notice given

A Form 144 is filed before an insider sells restricted stock. It states an intent; the sale, if it happens, appears later on a Form 4. Every recent notice

  1. MATTHEW POSARD filed Sep 16, 2026 Director 34,226 shares planned sale date 09/16/2026 filing $3.6M

Congress · STOCK Act

The Althing

Periodic transaction reports. Amounts are the ranges members report; the trade date is when it happened, the report can come up to 45 days later.

  1. Gilbert Cisneros (D-CA31): Sale Sep 29, 2026 reported Oct 12, 2026 one of 57 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000
  2. Gilbert Cisneros (D-CA31): Purchase Mar 9, 2026 reported Apr 7, 2026 one of 141 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Results of operations and financial condition filing Nov 5, 2026
  2. Departure or appointment of directors or officers filing Sep 30, 2026
  3. Entry into a material definitive agreement; Creation of a direct financial obligation; Unregistered sales of equity securities filing Sep 22, 2026
  4. Other events filing Sep 18, 2026
  5. Other events filing Sep 16, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.