Company / CIK 0001159036
HALOZYME THERAPEUTICS, INC.
- Ticker
- HALO
- Size, estimated from filings
- Large cap ($10B – $200B)
- Insiders on file
- 14
- Members of Congress who traded it
- 1
- Federal contracts on record
- none matched
- Lobbying filings on record
- 4
- SEC filings
- EDGAR ↗
- Latest trade on record
- October 8, 2026
HALOZYME THERAPEUTICS, INC. (HALO) has 14 insiders on file who disclosed 268 transactions in the last 12 months (0 open-market buys, 124 sales, about $73.0M at reported prices), and 2 congressional trades in its stock are on record. No federal contract award that started in the last 180 days was found for a recipient with exactly this name, and 2 lobbying filings naming it as client report $150K in 2026.
HALOZYME THERAPEUTICS, INC. in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
BoughtSold
8 people account for the disclosed buying and selling in HALOZYME THERAPEUTICS, INC. over the last 12 months; the most active is Torley Helen with $47M.
Lobbying spend by quarter
How much has HALOZYME THERAPEUTICS, INC. reported spending on federal lobbying?
HALOZYME THERAPEUTICS, INC. reported $270K in lobbying over the last eight quarters, from filings matched by exact company name.
Insiders
| Name | Role | Rows | Bought | Sold | Last filed |
|---|---|---|---|---|---|
| Daly James M | Director | 2 | 0 | 0 | October 20, 2026 |
| Torley Helen | PRESIDENT AND CEO | 182 | 0 | 101 | October 8, 2026 |
| Posard Matthew L. | Director | 10 | 0 | 8 | October 2, 2026 |
| Appelhans Dannielle | Director | 2 | 0 | 0 | September 2, 2026 |
| Connaughton Bernadette | Director | 12 | 0 | 10 | August 11, 2026 |
| RAMSAY DAVID A | Interim CFO | 6 | 0 | 1 | July 2, 2026 |
| Snellgrove Darren | SVP, Chief Financial Officer | 2 | 0 | 0 | July 2, 2026 |
| Krishnan Mahesh | Director | 5 | 0 | 1 | June 30, 2026 |
| Snyder Mark Howard | SVP, CHIEF LEGAL OFFICER | 23 | 0 | 6 | June 15, 2026 |
| Lang James Paul | Director | 4 | 0 | 0 | May 7, 2026 |
| DUNCAN BARBARA GAYLE | Director | 2 | 0 | 0 | May 7, 2026 |
| Henderson Jeffrey William | Director | 2 | 0 | 0 | May 7, 2026 |
| Caudill Cortney | SVP, CHIEF OPERATING OFFICER | 19 | 0 | 5 | March 10, 2026 |
| LaBrosse Nicole | SVP, CHIEF FINANCIAL OFFICER | 18 | 0 | 5 | February 24, 2026 |
Rows are this company's Form 4 rows for each person. "Bought" and "sold" count open-market purchases (code P) and sales only. More in insider buying and insider selling.
Members of Congress who traded HALO
From periodic transaction reports that name the company's stock. Amounts are the sums of the ranges as filed. Every row is on the HALO page.
| Member | Seat | Trades | Bought | Sold | Range as filed | Latest |
|---|---|---|---|---|---|---|
| Gilbert Ray Cisneros, Jr. | Representative (CA, District 31), Democrat | 2 | 1 | 1 | $2,002–$30K | September 29, 2026 |
Insider transactions
| Filer | Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Torley Helen | HALO | Option / conversion M | October 8, 2026 | October 8, 2026 | 0d | 20,000 | $18 | $368K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | October 7, 2026 | October 8, 2026 | 1d | 20,000 | $18 | $368K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | October 6, 2026 | October 8, 2026 | 2d | 20,000 | $18 | $368K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | October 8, 2026 | October 8, 2026 | 0d | 200 | $111 | $22K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | October 8, 2026 | October 8, 2026 | 0d | 11,900 | $110 | $1.3M | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | October 8, 2026 | October 8, 2026 | 0d | 3,090 | $109 | $337K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | October 8, 2026 | October 8, 2026 | 0d | 4,810 | $108 | $520K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | October 8, 2026 | October 8, 2026 | 0d | 20,000 | $18 | $368K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | October 7, 2026 | October 8, 2026 | 1d | 200 | $114 | $23K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | October 7, 2026 | October 8, 2026 | 1d | 900 | $113 | $102K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | October 7, 2026 | October 8, 2026 | 1d | 10,300 | $112 | $1.2M | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | October 7, 2026 | October 8, 2026 | 1d | 8,600 | $111 | $955K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | October 7, 2026 | October 8, 2026 | 1d | 20,000 | $18 | $368K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | October 6, 2026 | October 8, 2026 | 2d | 1,780 | $111 | $197K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | October 6, 2026 | October 8, 2026 | 2d | 9,920 | $110 | $1.1M | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | October 6, 2026 | October 8, 2026 | 2d | 6,000 | $109 | $656K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | October 6, 2026 | October 8, 2026 | 2d | 2,300 | $108 | $248K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | October 6, 2026 | October 8, 2026 | 2d | 20,000 | $18 | $368K | 10b5-1 plan | Form 4 ↗ | |
| Daly James M | HALO | Other A | October 1, 2026 | October 2, 2026 | 1d | 1,775 | — | — | derivative | Form 4 ↗ | |
| Daly James M | HALO | Other A | October 1, 2026 | October 2, 2026 | 1d | 1,169 | — | — | Form 4 ↗ | ||
| Posard Matthew L. | HALO | Sell S | October 1, 2026 | October 2, 2026 | 1d | 100 | $110 | $11K | 10b5-1 plan | Form 4 ↗ | |
| Posard Matthew L. | HALO | Sell S | October 1, 2026 | October 2, 2026 | 1d | 1,100 | $110 | $121K | 10b5-1 plan | Form 4 ↗ | |
| Posard Matthew L. | HALO | Sell S | October 1, 2026 | October 2, 2026 | 1d | 3,300 | $108 | $358K | 10b5-1 plan | Form 4 ↗ | |
| Posard Matthew L. | HALO | Sell S | October 1, 2026 | October 2, 2026 | 1d | 730 | $107 | $78K | 10b5-1 plan | Form 4 ↗ | |
| Posard Matthew L. | HALO | Sell S | September 16, 2026 | September 17, 2026 | 1d | 4,000 | $109 | $436K | 10b5-1 plan | Form 4 ↗ | |
| Posard Matthew L. | HALO | Sell S | September 16, 2026 | September 17, 2026 | 1d | 8,896 | $108 | $961K | 10b5-1 plan | Form 4 ↗ | |
| Posard Matthew L. | HALO | Sell S | September 16, 2026 | September 17, 2026 | 1d | 3,000 | $107 | $320K | 10b5-1 plan | Form 4 ↗ | |
| Posard Matthew L. | HALO | Sell S | September 16, 2026 | September 17, 2026 | 1d | 3,100 | $106 | $329K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | September 11, 2026 | September 11, 2026 | 0d | 20,000 | $18 | $368K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | September 10, 2026 | September 11, 2026 | 1d | 20,000 | $18 | $368K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 20,000 | $18 | $368K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | September 11, 2026 | September 11, 2026 | 0d | 4,508 | $108 | $485K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | September 11, 2026 | September 11, 2026 | 0d | 15,492 | $107 | $1.7M | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | September 11, 2026 | September 11, 2026 | 0d | 20,000 | $18 | $368K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | September 10, 2026 | September 11, 2026 | 1d | 5,412 | $108 | $582K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | September 10, 2026 | September 11, 2026 | 1d | 14,588 | $107 | $1.6M | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | September 10, 2026 | September 11, 2026 | 1d | 20,000 | $18 | $368K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | September 9, 2026 | September 11, 2026 | 2d | 100 | $109 | $11K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | September 9, 2026 | September 11, 2026 | 2d | 6,596 | $108 | $711K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | September 9, 2026 | September 11, 2026 | 2d | 13,304 | $107 | $1.4M | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 20,000 | $18 | $368K | 10b5-1 plan | Form 4 ↗ | |
| Appelhans Dannielle | HALO | Other A | September 1, 2026 | September 2, 2026 | 1d | 1,778 | — | — | derivative | Form 4 ↗ | |
| Appelhans Dannielle | HALO | Other A | September 1, 2026 | September 2, 2026 | 1d | 1,161 | — | — | Form 4 ↗ | ||
| Torley Helen | HALO | Option / conversion M | August 19, 2026 | August 19, 2026 | 0d | 20,000 | $18 | $368K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | August 18, 2026 | August 19, 2026 | 1d | 20,000 | $18 | $368K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | August 17, 2026 | August 19, 2026 | 2d | 20,000 | $18 | $368K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | August 19, 2026 | August 19, 2026 | 0d | 3,200 | $108 | $345K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | August 19, 2026 | August 19, 2026 | 0d | 9,600 | $107 | $1.0M | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | August 19, 2026 | August 19, 2026 | 0d | 7,200 | $106 | $766K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | August 19, 2026 | August 19, 2026 | 0d | 20,000 | $18 | $368K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | August 18, 2026 | August 19, 2026 | 1d | 9,400 | $105 | $986K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | August 18, 2026 | August 19, 2026 | 1d | 4,897 | $104 | $510K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | August 18, 2026 | August 19, 2026 | 1d | 5,703 | $103 | $588K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | August 18, 2026 | August 19, 2026 | 1d | 20,000 | $18 | $368K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | August 17, 2026 | August 19, 2026 | 2d | 7,500 | $103 | $776K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | August 17, 2026 | August 19, 2026 | 2d | 9,000 | $103 | $923K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | August 17, 2026 | August 19, 2026 | 2d | 2,100 | $102 | $214K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | August 17, 2026 | August 19, 2026 | 2d | 500 | $100 | $50K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | August 17, 2026 | August 19, 2026 | 2d | 900 | $99 | $89K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | August 17, 2026 | August 19, 2026 | 2d | 20,000 | $18 | $368K | 10b5-1 plan | Form 4 ↗ | |
| Connaughton Bernadette | HALO | Sell S | August 10, 2026 | August 11, 2026 | 1d | 1,626 | $103 | $167K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | July 8, 2026 | July 9, 2026 | 1d | 1,923 | $12 | $23K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | July 8, 2026 | July 9, 2026 | 1d | 1,035 | $80 | $83K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | July 8, 2026 | July 9, 2026 | 1d | 888 | $79 | $70K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | July 8, 2026 | July 9, 2026 | 1d | 1,923 | $12 | $23K | 10b5-1 plan | Form 4 ↗ | |
| RAMSAY DAVID A | HALO | Other A | July 1, 2026 | July 2, 2026 | 1d | 39,823 | — | — | derivative | Form 4 ↗ | |
| RAMSAY DAVID A | HALO | Other A | July 1, 2026 | July 2, 2026 | 1d | 16,232 | — | — | derivative | Form 4 ↗ | |
| RAMSAY DAVID A | HALO | Option / conversion M | June 30, 2026 | July 2, 2026 | 2d | 10,000 | — | — | derivative | Form 4 ↗ | |
| RAMSAY DAVID A | HALO | Sell F | June 30, 2026 | July 2, 2026 | 2d | 5,408 | $78 | $423K | Form 4 ↗ | ||
| RAMSAY DAVID A | HALO | Option / conversion M | June 30, 2026 | July 2, 2026 | 2d | 10,000 | — | — | Form 4 ↗ | ||
| Snellgrove Darren | HALO | Other A | July 1, 2026 | July 2, 2026 | 1d | 127,432 | — | — | derivative | Form 4 ↗ | |
| Snellgrove Darren | HALO | Other A | July 1, 2026 | July 2, 2026 | 1d | 41,554 | — | — | derivative | Form 4 ↗ | |
| Connaughton Bernadette | HALO | Sell S | July 1, 2026 | July 2, 2026 | 1d | 625 | $77 | $48K | 10b5-1 plan | Form 4 ↗ | |
| Connaughton Bernadette | HALO | Sell S | July 1, 2026 | July 2, 2026 | 1d | 1,000 | $76 | $76K | 10b5-1 plan | Form 4 ↗ | |
| Krishnan Mahesh | HALO | Option / conversion M | June 29, 2026 | June 30, 2026 | 1d | 7,304 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Krishnan Mahesh | HALO | Sell S | June 29, 2026 | June 30, 2026 | 1d | 7,304 | $75 | $548K | 10b5-1 plan | Form 4 ↗ | |
| Krishnan Mahesh | HALO | Option / conversion M | June 29, 2026 | June 30, 2026 | 1d | 7,304 | $38 | $281K | 10b5-1 plan | Form 4 ↗ | |
| Snyder Mark Howard | HALO | Option / conversion M | June 12, 2026 | June 15, 2026 | 3d | 5,034 | — | — | derivative | Form 4 ↗ | |
| Snyder Mark Howard | HALO | Sell F | June 12, 2026 | June 15, 2026 | 3d | 2,715 | $70 | $189K | Form 4 ↗ | ||
| Snyder Mark Howard | HALO | Option / conversion M | June 12, 2026 | June 15, 2026 | 3d | 5,034 | — | — | Form 4 ↗ | ||
| Torley Helen | HALO | Option / conversion M | June 3, 2026 | June 3, 2026 | 0d | 10,000 | $12 | $121K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | June 2, 2026 | June 3, 2026 | 1d | 20,000 | $12 | $241K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | June 1, 2026 | June 3, 2026 | 2d | 20,000 | $12 | $241K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | June 3, 2026 | June 3, 2026 | 0d | 6,100 | $70 | $425K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | June 3, 2026 | June 3, 2026 | 0d | 2,000 | $69 | $137K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | June 3, 2026 | June 3, 2026 | 0d | 1,500 | $68 | $102K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | June 3, 2026 | June 3, 2026 | 0d | 400 | $66 | $27K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | June 3, 2026 | June 3, 2026 | 0d | 10,000 | $12 | $121K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | June 2, 2026 | June 3, 2026 | 1d | 3,400 | $67 | $227K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | June 2, 2026 | June 3, 2026 | 1d | 16,600 | $66 | $1.1M | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | June 2, 2026 | June 3, 2026 | 1d | 20,000 | $12 | $241K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | June 1, 2026 | June 3, 2026 | 2d | 5,401 | $68 | $369K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | June 1, 2026 | June 3, 2026 | 2d | 12,989 | $67 | $876K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | June 1, 2026 | June 3, 2026 | 2d | 1,610 | $66 | $107K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | June 1, 2026 | June 3, 2026 | 2d | 20,000 | $12 | $241K | 10b5-1 plan | Form 4 ↗ | |
| Connaughton Bernadette | HALO | Sell S | June 1, 2026 | June 2, 2026 | 1d | 1,625 | $66 | $108K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | May 13, 2026 | May 13, 2026 | 0d | 10,000 | $12 | $121K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | May 12, 2026 | May 13, 2026 | 1d | 20,000 | $12 | $241K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | May 11, 2026 | May 13, 2026 | 2d | 20,000 | $12 | $241K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | May 13, 2026 | May 13, 2026 | 0d | 600 | $71 | $42K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | May 13, 2026 | May 13, 2026 | 0d | 3,950 | $70 | $276K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | May 13, 2026 | May 13, 2026 | 0d | 3,350 | $69 | $231K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | May 13, 2026 | May 13, 2026 | 0d | 2,100 | $68 | $143K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | May 13, 2026 | May 13, 2026 | 0d | 10,000 | $12 | $121K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | May 12, 2026 | May 13, 2026 | 1d | 2,800 | $73 | $205K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | May 12, 2026 | May 13, 2026 | 1d | 5,900 | $72 | $426K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | May 12, 2026 | May 13, 2026 | 1d | 9,802 | $71 | $700K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | May 12, 2026 | May 13, 2026 | 1d | 1,398 | $70 | $98K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | May 12, 2026 | May 13, 2026 | 1d | 100 | $68 | $6,785 | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | May 12, 2026 | May 13, 2026 | 1d | 20,000 | $12 | $241K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | May 11, 2026 | May 13, 2026 | 2d | 6,700 | $66 | $444K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | May 11, 2026 | May 13, 2026 | 2d | 3,575 | $65 | $234K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | May 11, 2026 | May 13, 2026 | 2d | 9,725 | $65 | $629K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | May 11, 2026 | May 13, 2026 | 2d | 20,000 | $12 | $241K | 10b5-1 plan | Form 4 ↗ | |
| Posard Matthew L. | HALO | Other A | May 5, 2026 | May 7, 2026 | 2d | 6,040 | — | — | derivative | Form 4 ↗ | |
| Posard Matthew L. | HALO | Other A | May 5, 2026 | May 7, 2026 | 2d | 3,796 | — | — | Form 4 ↗ | ||
| Krishnan Mahesh | HALO | Other A | May 5, 2026 | May 7, 2026 | 2d | 6,040 | — | — | derivative | Form 4 ↗ | |
| Krishnan Mahesh | HALO | Other A | May 5, 2026 | May 7, 2026 | 2d | 3,796 | — | — | Form 4 ↗ | ||
| Lang James Paul | HALO | Other A | May 5, 2026 | May 7, 2026 | 2d | 6,040 | — | — | derivative | Form 4 ↗ | |
| Lang James Paul | HALO | Other A | May 5, 2026 | May 7, 2026 | 2d | 3,796 | — | — | Form 4 ↗ | ||
| Henderson Jeffrey William | HALO | Other A | May 5, 2026 | May 7, 2026 | 2d | 6,040 | — | — | derivative | Form 4 ↗ | |
| Henderson Jeffrey William | HALO | Other A | May 5, 2026 | May 7, 2026 | 2d | 3,796 | — | — | Form 4 ↗ | ||
| DUNCAN BARBARA GAYLE | HALO | Other A | May 5, 2026 | May 7, 2026 | 2d | 6,040 | — | — | derivative | Form 4 ↗ | |
| DUNCAN BARBARA GAYLE | HALO | Other A | May 5, 2026 | May 7, 2026 | 2d | 3,796 | — | — | Form 4 ↗ | ||
| Connaughton Bernadette | HALO | Other A | May 5, 2026 | May 7, 2026 | 2d | 6,040 | — | — | derivative | Form 4 ↗ | |
| Connaughton Bernadette | HALO | Other A | May 5, 2026 | May 7, 2026 | 2d | 6,796 | — | — | Form 4 ↗ | ||
| Connaughton Bernadette | HALO | Sell S | May 1, 2026 | May 5, 2026 | 4d | 1,625 | $63 | $103K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | April 6, 2026 | April 7, 2026 | 1d | 10,000 | $12 | $121K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | April 6, 2026 | April 7, 2026 | 1d | 4,100 | $64 | $262K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | April 6, 2026 | April 7, 2026 | 1d | 5,900 | $63 | $373K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | April 6, 2026 | April 7, 2026 | 1d | 10,000 | $12 | $121K | 10b5-1 plan | Form 4 ↗ | |
| RAMSAY DAVID A | HALO | Other A | April 1, 2026 | April 2, 2026 | 1d | 10,000 | — | — | derivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | April 2, 2026 | April 2, 2026 | 0d | 20,000 | $12 | $241K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | April 1, 2026 | April 2, 2026 | 1d | 20,000 | $12 | $241K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | April 2, 2026 | April 2, 2026 | 0d | 4,200 | $65 | $273K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | April 2, 2026 | April 2, 2026 | 0d | 15,800 | $64 | $1.0M | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | April 2, 2026 | April 2, 2026 | 0d | 20,000 | $12 | $241K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | April 1, 2026 | April 2, 2026 | 1d | 1,000 | $66 | $66K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | April 1, 2026 | April 2, 2026 | 1d | 19,000 | $65 | $1.2M | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | April 1, 2026 | April 2, 2026 | 1d | 20,000 | $12 | $241K | 10b5-1 plan | Form 4 ↗ | |
| Caudill Cortney | HALO | Option / conversion M | March 10, 2026 | March 10, 2026 | 0d | 1,546 | $34 | $52K | derivative | Form 4 ↗ | |
| Caudill Cortney | HALO | Option / conversion M | March 9, 2026 | March 10, 2026 | 1d | 20,000 | $34 | $670K | derivative | Form 4 ↗ | |
| Caudill Cortney | HALO | Sell S | March 10, 2026 | March 10, 2026 | 0d | 8,857 | $68 | $599K | Form 4 ↗ | ||
| Caudill Cortney | HALO | Option / conversion M | March 10, 2026 | March 10, 2026 | 0d | 1,546 | $34 | $52K | Form 4 ↗ | ||
| Caudill Cortney | HALO | Sell S | March 9, 2026 | March 10, 2026 | 1d | 2,100 | $68 | $143K | Form 4 ↗ | ||
| Caudill Cortney | HALO | Sell S | March 9, 2026 | March 10, 2026 | 1d | 17,900 | $68 | $1.2M | Form 4 ↗ | ||
| Caudill Cortney | HALO | Option / conversion M | March 9, 2026 | March 10, 2026 | 1d | 20,000 | $34 | $670K | Form 4 ↗ | ||
| Torley Helen | HALO | Option / conversion M | March 4, 2026 | March 4, 2026 | 0d | 10,000 | $12 | $121K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | March 3, 2026 | March 4, 2026 | 1d | 20,000 | $12 | $241K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | March 2, 2026 | March 4, 2026 | 2d | 20,000 | $12 | $241K | 10b5-1 planderivative | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | March 4, 2026 | March 4, 2026 | 0d | 2,671 | $71 | $189K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | March 4, 2026 | March 4, 2026 | 0d | 7,329 | $70 | $513K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | March 4, 2026 | March 4, 2026 | 0d | 10,000 | $12 | $121K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | March 3, 2026 | March 4, 2026 | 1d | 6,519 | $69 | $452K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | March 3, 2026 | March 4, 2026 | 1d | 13,481 | $69 | $928K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | March 3, 2026 | March 4, 2026 | 1d | 20,000 | $12 | $241K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | March 2, 2026 | March 4, 2026 | 2d | 578 | $70 | $41K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | March 2, 2026 | March 4, 2026 | 2d | 15,322 | $70 | $1.1M | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Sell S | March 2, 2026 | March 4, 2026 | 2d | 4,100 | $69 | $284K | 10b5-1 plan | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | March 2, 2026 | March 4, 2026 | 2d | 20,000 | $12 | $241K | 10b5-1 plan | Form 4 ↗ | |
| Caudill Cortney | HALO | Option / conversion M | February 20, 2026 | February 24, 2026 | 4d | 2,666 | — | — | derivative | Form 4 ↗ | |
| Caudill Cortney | HALO | Sell F | February 20, 2026 | February 24, 2026 | 4d | 1,037 | $71 | $74K | Form 4 ↗ | ||
| Caudill Cortney | HALO | Option / conversion M | February 20, 2026 | February 24, 2026 | 4d | 2,666 | — | — | Form 4 ↗ | ||
| Snyder Mark Howard | HALO | Option / conversion M | February 23, 2026 | February 24, 2026 | 1d | 7,011 | — | — | derivative | Form 4 ↗ | |
| Snyder Mark Howard | HALO | Option / conversion M | February 20, 2026 | February 24, 2026 | 4d | 5,332 | — | — | derivative | Form 4 ↗ | |
| Snyder Mark Howard | HALO | Sell F | February 23, 2026 | February 24, 2026 | 1d | 3,782 | $71 | $267K | Form 4 ↗ | ||
| Snyder Mark Howard | HALO | Option / conversion M | February 23, 2026 | February 24, 2026 | 1d | 7,011 | — | — | Form 4 ↗ | ||
| Snyder Mark Howard | HALO | Sell F | February 20, 2026 | February 24, 2026 | 4d | 2,876 | $71 | $204K | Form 4 ↗ | ||
| Snyder Mark Howard | HALO | Option / conversion M | February 20, 2026 | February 24, 2026 | 4d | 5,332 | — | — | Form 4 ↗ | ||
| LaBrosse Nicole | HALO | Option / conversion M | February 23, 2026 | February 24, 2026 | 1d | 6,688 | — | — | derivative | Form 4 ↗ | |
| LaBrosse Nicole | HALO | Option / conversion M | February 20, 2026 | February 24, 2026 | 4d | 5,332 | — | — | derivative | Form 4 ↗ | |
| LaBrosse Nicole | HALO | Sell F | February 23, 2026 | February 24, 2026 | 1d | 3,608 | $71 | $255K | Form 4 ↗ | ||
| LaBrosse Nicole | HALO | Option / conversion M | February 23, 2026 | February 24, 2026 | 1d | 6,688 | — | — | Form 4 ↗ | ||
| LaBrosse Nicole | HALO | Sell F | February 20, 2026 | February 24, 2026 | 4d | 2,876 | $71 | $204K | Form 4 ↗ | ||
| LaBrosse Nicole | HALO | Option / conversion M | February 20, 2026 | February 24, 2026 | 4d | 5,332 | — | — | Form 4 ↗ | ||
| Torley Helen | HALO | Option / conversion M | February 23, 2026 | February 24, 2026 | 1d | 22,436 | — | — | derivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | February 20, 2026 | February 24, 2026 | 4d | 16,757 | — | — | derivative | Form 4 ↗ | |
| Torley Helen | HALO | Sell F | February 23, 2026 | February 24, 2026 | 1d | 12,104 | $71 | $855K | Form 4 ↗ | ||
| Torley Helen | HALO | Option / conversion M | February 23, 2026 | February 24, 2026 | 1d | 22,436 | — | — | Form 4 ↗ | ||
| Torley Helen | HALO | Sell F | February 20, 2026 | February 24, 2026 | 4d | 9,040 | $71 | $642K | Form 4 ↗ | ||
| Torley Helen | HALO | Option / conversion M | February 20, 2026 | February 24, 2026 | 4d | 16,757 | — | — | Form 4 ↗ | ||
| Snyder Mark Howard | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 12,016 | — | — | derivative | Form 4 ↗ | |
| Snyder Mark Howard | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 4,796 | — | — | derivative | Form 4 ↗ | |
| Snyder Mark Howard | HALO | Sell F | February 16, 2026 | February 17, 2026 | 1d | 6,481 | $79 | $515K | Form 4 ↗ | ||
| Snyder Mark Howard | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 12,016 | — | — | Form 4 ↗ | ||
| Snyder Mark Howard | HALO | Sell F | February 16, 2026 | February 17, 2026 | 1d | 2,587 | $79 | $206K | Form 4 ↗ | ||
| Snyder Mark Howard | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 4,796 | — | — | Form 4 ↗ | ||
| LaBrosse Nicole | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 13,351 | — | — | derivative | Form 4 ↗ | |
| LaBrosse Nicole | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 5,329 | — | — | derivative | Form 4 ↗ | |
| LaBrosse Nicole | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 5,093 | — | — | derivative | Form 4 ↗ | |
| LaBrosse Nicole | HALO | Sell F | February 16, 2026 | February 17, 2026 | 1d | 7,273 | $79 | $578K | Form 4 ↗ | ||
| LaBrosse Nicole | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 13,351 | — | — | Form 4 ↗ | ||
| LaBrosse Nicole | HALO | Sell F | February 16, 2026 | February 17, 2026 | 1d | 2,874 | $79 | $228K | Form 4 ↗ | ||
| LaBrosse Nicole | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 5,329 | — | — | Form 4 ↗ | ||
| LaBrosse Nicole | HALO | Sell F | February 16, 2026 | February 17, 2026 | 1d | 2,747 | $79 | $218K | Form 4 ↗ | ||
| LaBrosse Nicole | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 5,093 | — | — | Form 4 ↗ | ||
| Torley Helen | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 51,171 | — | — | derivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 16,875 | — | — | derivative | Form 4 ↗ | |
| Torley Helen | HALO | Option / conversion M | February 16, 2026 | February 17, 2026 | 1d | 21,009 | — | — | derivative | Form 4 ↗ | |
| Torley Helen | HALO | Sell F | February 16, 2026 | February 17, 2026 | 1d | 27,605 | $79 | $2.2M | Form 4 ↗ |
Showing the 200 most recent of 289.
Federal contracts (USAspending, awards started in the last 180 days)
No contract award starting in the last 180 days was found for a recipient named exactly "HALOZYME THERAPEUTICS, INC.". Subsidiaries and differently-spelled recipients are not matched — search contracts.
Lobbying (Senate LDA, as client)
| Period | Registrant | Primary issue | Amount | Source |
|---|---|---|---|---|
| 2026 Q2 | FORBES-TATE | Medicare/Medicaid | $80,000 | LDA ↗ |
| 2026 Q1 | FORBES-TATE | Health Issues | $70,000 | LDA ↗ |
| 2025 Q4 | FORBES-TATE | Health Issues | $60,000 | LDA ↗ |
| 2025 Q3 | FORBES-TATE | Health Issues | $60,000 | LDA ↗ |
Related companies
Companies whose stock was traded by the same people who traded HALO, by number of filers in common. It shows overlap in public filings and nothing else.
- CYTOKINETICS INC CYTK 2 filers in common
- CrowdStrike Holdings, Inc. CRWD 1 filer in common
- Cloudflare, Inc. NET 1 filer in common
- Uber Technologies, Inc UBER 1 filer in common
- Datadog, Inc. DDOG 1 filer in common
- CARVANA CO. CVNA 1 filer in common
- Arista Networks, Inc. ANET 1 filer in common
- Credo Technology Group Holding Ltd CRDO 1 filer in common
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Lobbying disclosure reports Reports are due about 20 days after each quarter ends.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| House Clerk, periodic transaction reports | 2 | 2 | April 7, 2026 | October 12, 2026 | House Clerk search |
| SEC EDGAR, Form 4 | 53 | 289 | October 1, 2025 | October 8, 2026 | Form 4 list on EDGAR |
| Lobbying disclosure filings | 4 filings | — | — | — | LDA.gov search |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Insiders and their transactions come from SEC EDGAR Form 4 filings for this issuer. Contracts and lobbying are matched by exact normalized name (suffixes like Inc./Corp. ignored) to USAspending recipients and LDA clients — a conservative match that misses subsidiaries on purpose. See methodology and corrections.
Not investment advice. Public records shown as filed; no recommendation is made or implied.