HALOZYME THERAPEUTICS, INC. (HALO)
$0.00-$0.05 (-0.05%) TodayExtended Hours
Halozyme Therapeutics Inc is a biotechnology company focused on developing and commercializing novel oncology therapies. The company seeks to create therapies focused on human enzymes that alter tumors. Halozyme focuses on developing its proprietary products in therapeutic areas with a focus on oncology, and licensing its technology to biopharmaceutical companies to collaboratively develop products. ENHANZE drug delivery technology was introduced with the proprietary enzyme rHuPH20, to facilitate the subcutaneous delivery of injected drugs and fluids, with the goal of improving the patient experience with rapid SC delivery and reduced treatment burden. The company's operations are based in the United States, with minimal long-lived assets located internationally.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 27 | 124,103 | $10.75M |
| Grant or award | 4 | 225,041 | |
| Option exercise | 20 | 268,522 | |
| Tax withholding / forfeiture | 2 | 8,123 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
62 Form 4 filings on record, the earliest from Oct 9, 2024, newest first. Filing history page 2 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
 Cortney Caudill - Officer | Grant or award | Option to Purchase Common Stock | 14,047 | $0.00 | - | |
| Cortney Caudill - Officer | Grant or award | Restricted Stock Units | 13,047 | $0.00 | - | |
| Cortney Caudill - Officer | Grant or award | Performance Stock Units | 2,403 | $0.00 | - | |
| Cortney Caudill - Officer | Grant or award | Performance Stock Units | 14,751 | $0.00 | - | |
| Mark Howard Snyder - Officer | Grant or award | Option to Purchase Common Stock | 18,730 | $0.00 | - | |
| Mark Howard Snyder - Officer | Grant or award | Restricted Stock Units | 17,396 | $0.00 | - | |
| Mark Howard Snyder - Officer | Grant or award | Performance Stock Units | 4,651 | $0.00 | - | |
| Mark Howard Snyder - Officer | Grant or award | Performance Stock Units | 7,808 | $0.00 | - | |
| Mark Howard Snyder - Officer | Grant or award | Performance Stock Units | 29,502 | $0.00 | - | |
 Nicole Labrosse - Officer | Grant or award | Performance Stock Units | 5,167 | $0.00 | - | |
| Nicole Labrosse - Officer | Grant or award | Performance Stock Units | 7,448 | $0.00 | - | |
| Nicole Labrosse - Officer | Grant or award | Performance Stock Units | 29,502 | $0.00 | - | |
| Helen Torley - Officer | Grant or award | Option to Purchase Common Stock | 53,847 | $0.00 | - | |
| Helen Torley - Officer | Grant or award | Restricted Stock Units | 50,013 | $0.00 | - | |
| Helen Torley - Officer | Grant or award | Performance Stock Units | 19,807 | $0.00 | - | |
| Helen Torley - Officer | Grant or award | Performance Stock Units | 24,985 | $0.00 | - | |
| Helen Torley - Officer | Grant or award | Performance Stock Units | 92,714 | $0.00 | - | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $12.07 | $241K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 2,551 | $74.88 | $191K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 9,659 | $75.94 | $734K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 7,790 | $76.73 | $598K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $12.07 | $241K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 9,900 | $76.94 | $762K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 10,100 | $77.54 | $783K | |
| Helen Torley - Officer | Option exercise | Common Stock | 10,000 | $12.07 | $121K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 5,376 | $78.38 | $421K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 4,624 | $78.94 | $365K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $12.07 | $241K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $12.07 | $241K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 10,000 | $12.07 | $121K | |
| Bernadette Connaughton - Director | Open-market sale | Common Stock | 829 | $71.60 | $59K | |
| Helen Torley - Officer | Gift | Common Stock | 25,000 | $0.00 | - | |
| Helen Torley - Officer | Option exercise | Common Stock | 16,569 | $8.11 | $134K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 10,406 | $68.51 | $713K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 5,402 | $69.44 | $375K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 500 | $70.36 | $35K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 261 | $71.60 | $19K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 16,569 | $8.11 | $134K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 100 | $69.30 | $7K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 4,500 | $67.89 | $306K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 4,000 | $68.80 | $275K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 11,500 | $69.73 | $802K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 12,718 | $70.22 | $893K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 6,784 | $71.09 | $482K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 498 | $71.67 | $36K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 19,900 | $68.71 | $1.37M | |
| Bernadette Connaughton - Director | Open-market sale | Common Stock | 2,000 | $68.48 | $137K | |
| Cortney Caudill - Officer | Grant or award | Option to Purchase Common Stock | 9,031 | $0.00 | - | |
| Cortney Caudill - Officer | Grant or award | Restricted Stock Units | 3,625 | $0.00 | - | |
| Bernadette Connaughton | Open-market sale | Common Stock | 1,500 | $75.09 | $113K | |
| Bernadette Connaughton | Open-market sale | Common Stock | 500 | $75.70 | $38K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 11,705 | $75.11 | $879K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 8,295 | $75.69 | $628K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 6,600 | $70.51 | $465K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 10,200 | $71.28 | $727K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 2,400 | $72.07 | $173K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 700 | $73.24 | $51K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 100 | $74.67 | $7K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 14,235 | $68.47 | $975K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 2,334 | $69.83 | $163K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 2,707 | $70.58 | $191K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 724 | $71.67 | $52K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Nicole Labrosse - Officer | Open-market sale | Common Stock | 1,913 | $77.83 | $149K | |
| Nicole Labrosse - Officer | Open-market sale | Common Stock | 314 | $78.67 | $25K | |
| Nicole Labrosse - Officer | Option exercise | Common Stock | 11,271 | $12.07 | $136K | |
| Nicole Labrosse - Officer | Option exercise | Common Stock | 1,135 | $12.49 | $14K | |
| Nicole Labrosse - Officer | Open-market sale | Common Stock | 6,760 | $75.29 | $509K | |
| Nicole Labrosse - Officer | Open-market sale | Common Stock | 13,240 | $75.93 | $1.01M | |
| Nicole Labrosse - Officer | Option exercise | Option to Purchase Common Stock | 11,271 | $0.00 | - | |
| Nicole Labrosse - Officer | Option exercise | Option to Purchase Common Stock | 1,135 | $0.00 | - | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 300 | $72.49 | $22K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 16,288 | $73.70 | $1.20M | |
| Helen Torley - Officer | Open-market sale | Common Stock | 3,412 | $74.15 | $253K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 9,500 | $74.22 | $705K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 10,500 | $74.63 | $784K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 9,900 | $73.54 | $728K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 7,800 | $74.33 | $580K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 2,300 | $75.22 | $173K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Bernadette Connaughton | Open-market sale | Common Stock | 100 | $71.71 | $7K | |
| Bernadette Connaughton | Open-market sale | Common Stock | 2,977 | $73.62 | $219K | |
| Bernadette Connaughton | Open-market sale | Common Stock | 923 | $74.11 | $68K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 18,717 | $63.01 | $1.18M | |
| Helen Torley - Officer | Open-market sale | Common Stock | 1,283 | $63.60 | $82K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 13,042 | $63.24 | $825K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 6,958 | $64.00 | $445K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 14,948 | $64.15 | $959K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 5,052 | $64.83 | $328K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 3,598 | $54.48 | $196K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 16,402 | $55.74 | $914K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 19,792 | $56.43 | $1.12M | |
| Helen Torley - Officer | Open-market sale | Common Stock | 208 | $57.08 | $12K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 4,254 | $56.74 | $241K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 15,746 | $57.62 | $907K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 20,000 | $52.96 | $1.06M | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 20,000 | $52.57 | $1.05M | |
| Helen Torley - Officer | Option exercise | Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 4,489 | $53.11 | $238K | |
| Helen Torley - Officer | Open-market sale | Common Stock | 15,511 | $53.91 | $836K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Helen Torley - Officer | Option exercise | Option to Purchase Common Stock | 20,000 | $8.11 | $162K | |
| Mark Howard Snyder - Officer | Option exercise | Common Stock | 5,035 | $0.00 | - | |
| Mark Howard Snyder - Officer | Tax withholding / forfeiture | Common Stock | 2,711 | $54.54 | $148K | |
| Mark Howard Snyder - Officer | Option exercise | Restricted Stock Units | 5,035 | $0.00 | - | |
| Mahesh Krishnan | Grant or award | Common Stock | 4,165 | $0.00 | - | |
| Mahesh Krishnan | Grant or award | Option to Purchase Common Stock | 5,750 | $0.00 | - | |
| Barbara Gayle Duncan | Grant or award | Common Stock | 4,165 | $0.00 | - | |
| Barbara Gayle Duncan | Grant or award | Option to Purchase Common Stock | 5,750 | $0.00 | - | |
| Jeffrey William Henderson | Grant or award | Common Stock | 4,165 | $0.00 | - | |
| Jeffrey William Henderson | Grant or award | Option to Purchase Common Stock | 5,750 | $0.00 | - | |
| Akiko Moni Miyashita | Grant or award | Common Stock | 4,165 | $0.00 | - | |
| Akiko Moni Miyashita | Grant or award | Option to Purchase Common Stock | 5,750 | $0.00 | - | |
| Bernadette Connaughton | Grant or award | Common Stock | 4,165 | $0.00 | - | |
| Bernadette Connaughton | Grant or award | Option to Purchase Common Stock | 5,750 | $0.00 | - | |
| Matthew L. Posard | Grant or award | Common Stock | 4,165 | $0.00 | - | |
| Matthew L. Posard | Grant or award | Option to Purchase Common Stock | 5,750 | $0.00 | - | |
| Jeffrey William Henderson | Open-market sale | Common Stock | 4,297 | $60.34 | $259K | |
| Jeffrey William Henderson | Open-market sale | Common Stock | 200 | $61.00 | $12K | |
| Jeffrey William Henderson | Open-market sale | Common Stock | 503 | $64.05 | $32K | |
| Helen Torley - Officer | Gift | Common Stock | 10,000 | $0.00 | - | |
| Connie Matsui | Gift | Common Stock | 10,470 | $0.00 | - |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| Helen Torley | President, CEO, Director | 240,000 | $23.68M | View on EDGAR | |
| CORTNEY A CAUDILL | Officer | 41,702 | $4.30M | View on EDGAR | |
| BERNADETTE CONNAUGHTON | Director | 1,626 | $168K | View on EDGAR |
HALOZYME THERAPEUTICS, INC. (HALO) had 10 insider filings in the last 90 days, with the most recent on 2026-08-20. The full record for HALO runs to 62 Form 4 filings, the earliest from 2024-10-09. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of HALO were filed in the last 90 days.
27 insider sales of HALO were filed in the last 90 days, totaling $10.75M.
This page tracks HALO Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
