HALO
HALOZYME THERAPEUTICS, INC. · Healthcare · Market cap $14.1B
Insiders sold $22.1M net in the last 90 days ·3 sellers, 0 buyers· 12 of 12 sales under Rule 10b5-1 plans· latest Form 4 filed Oct 8, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$48.4M
reported sales (SEC code S)
Unique Insiders
5
in the rolling window
Latest filing
Oct 8, 2026
Torley Helen
HALOZYME THERAPEUTICS, INC. (HALO) has 44 SEC Form 4 filings (186 transaction rows) in the rolling window, disclosed by 5 distinct insiders. Most recent filing: Oct 8, 2026.
Inside the rolling window, 5 insiders at HALOZYME THERAPEUTICS, INC. reported no open-market purchases and 42 open-market sales totaling $48.4M. The most active filer is PRESIDENT AND CEO Torley Helen with 29 filings. Insiders have net sold $29.9M over the trailing 6 months. The most recent open-market filing is a sale of 20,000 shares by PRESIDENT AND CEO Torley Helen, dated Oct 6, 2026, worth $2.2M.
- Industry:Biotechnology
- CEO:Helen I. Torley
- Employees:423
- HQ:San Diego, CA, US
- IPO:2004-03-16
| Source | |||||||
|---|---|---|---|---|---|---|---|
| PRESIDENT AND CEO | Sale | 20,000 | $2.2M | Oct 8 | +13.2% | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 20,000 | $2.2M | Oct 8 | +13.2% | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 20,000 | $2.2M | Oct 8 | +13.2% | SEC ↗ | |
| Director | Sale | 5,230 | $568K | Oct 2 | — | SEC ↗ | |
Posard Matthew L.First filing | Director | Sale | 18,996 | $2.0M | Sep 17 | — | SEC ↗ |
| PRESIDENT AND CEO | Sale | 20,000 | $2.1M | Sep 12 | — | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 20,000 | $2.1M | Sep 12 | — | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 20,000 | $2.1M | Sep 12 | — | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 20,000 | $2.1M | Aug 19 | — | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 20,000 | $2.1M | Aug 19 | — | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 20,000 | $2.1M | Aug 19 | — | SEC ↗ | |
| Director | Sale | 1,626 | $167K | Aug 11 | — | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 1,923 | $153K | Jul 9 | — | SEC ↗ | |
| Director | Sale | 1,625 | $125K | Jul 2 | — | SEC ↗ | |
Krishnan MaheshFirst filing | Director | Sale | 7,304 | $548K | Jun 30 | — | SEC ↗ |
| PRESIDENT AND CEO | Sale | 20,000 | $1.4M | Jun 3 | — | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 20,000 | $1.3M | Jun 3 | — | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 10,000 | $691K | Jun 3 | — | SEC ↗ | |
| Director | Sale | 1,625 | $108K | Jun 2 | — | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 20,000 | $1.3M | May 13 | — | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 20,000 | $1.4M | May 13 | — | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 10,000 | $692K | May 13 | — | SEC ↗ | |
Connaughton BernadetteFirst in 4 months | Director | Sale | 1,625 | $103K | May 5 | — | SEC ↗ |
| PRESIDENT AND CEO | Sale | 10,000 | $635K | Apr 7 | — | SEC ↗ | |
| PRESIDENT AND CEO | Sale | 20,000 | $1.3M | Apr 2 | — | SEC ↗ |
Earnings: last 7 quarters
Congress trading HALO 7 all-time
- DRep. Gilbert Ray CisnerosOther$1,001 - $15,0002025-03-24
- DRep. Josh S. GottheimerOther$1,001 - $15,0002024-09-09
- DRep. Daniel GoldmanSale$15,001 - $50,0002023-07-12
- DRep. Josh S. GottheimerOther$1,001 - $15,0002022-12-06
- DRep. Gilbert Ray CisnerosPurchase$1,001 - $15,0002020-10-22
- DRep. Josh S. GottheimerPurchase$1,001 - $15,0002020-10-19
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does HALO have?
HALOZYME THERAPEUTICS, INC. (HALO) has 44 SEC Form 4 filings (186 transaction rows) in the rolling 365-day window, disclosed by 5 distinct insiders. Most recent filing: Oct 8, 2026.
When was the most recent SEC Form 4 filing for HALO?
The most recent Form 4 filing for HALO on Tracefour is dated Oct 8, 2026.
Who is the most active insider at HALO?
The most active SEC Form 4 filer at HALO in the rolling window is PRESIDENT AND CEO Torley Helen, with 29 filings.
What is the net insider flow at HALO over the last 6 months?
Over the trailing 180 days, insiders at HALO have net sold $29.9M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at HALO in the current window?
Inside the rolling window, insiders at HALO bought $0 and sold $48.4M based on SEC Form 4 filings.
Can I get alerts for HALO insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at HALOZYME THERAPEUTICS, INC. (HALO). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
HALOZYME THERAPEUTICS, INC. is in the Healthcare sector.