Halozyme Therapeutics, Inc. (HALO) insider trading.
In Q3 2026, insiders at Halozyme Therapeutics, Inc. reported 37 non-derivative transactions on 10 Forms 3, 4 and 5: 0 open-market purchases and 27 sales worth $15.2M.
- Transactions
- 37
- Purchases (P)
- 0
- Sales (S)
- 27
- Net shares, P minus S
- -144,170
- Insiders
- 5
- Last filed
- 2026-09-17
Insiders
| Insider | Relationship | Transactions | Buys | Sales |
|---|---|---|---|---|
| Torley Helen | Director, Officer · PRESIDENT AND CEO | 27 | 0 | 20 |
| Posard Matthew L. | Director | 4 | 0 | 4 |
| Connaughton Bernadette | Director | 3 | 0 | 3 |
| Ramsay David A | Officer · EVP, PRESIDENT, DRUG DELIVERY | 2 | 0 | 0 |
| Appelhans Dannielle | Director | 1 | 0 | 0 |
Transactions
| Date | Insider | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-16 | Posard Matthew L. | S (D) | 3,000 | $106.83 | 71,735 | Form 4 |
| 2026-09-16 | Posard Matthew L. | S (D) | 8,896 | $108.04 | 62,839 | Form 4 |
| 2026-09-16 | Posard Matthew L. | S (D) | 3,100 | $106.13 | 74,735 | Form 4 |
| 2026-09-16 | Posard Matthew L. | S (D) | 4,000 | $108.99 | 58,839 | Form 4 |
| 2026-09-11 | Torley Helen | S (D) | 4,508 | $107.55 | 767,780 | Form 4 |
| 2026-09-11 | Torley Helen | S (D) | 15,492 | $107.15 | 772,288 | Form 4 |
| 2026-09-11 | Torley Helen | M (A) | 20,000 | $18.41 | 787,780 | Form 4 |
| 2026-09-10 | Torley Helen | M (A) | 20,000 | $18.41 | 787,780 | Form 4 |
| 2026-09-10 | Torley Helen | S (D) | 14,588 | $107.01 | 773,192 | Form 4 |
| 2026-09-10 | Torley Helen | S (D) | 5,412 | $107.58 | 767,780 | Form 4 |
| 2026-09-09 | Torley Helen | S (D) | 100 | $108.67 | 767,780 | Form 4 |
| 2026-09-09 | Torley Helen | S (D) | 6,596 | $107.82 | 767,880 | Form 4 |
| 2026-09-09 | Torley Helen | M (A) | 20,000 | $18.41 | 787,780 | Form 4 |
| 2026-09-09 | Torley Helen | S (D) | 13,304 | $107.22 | 774,476 | Form 4 |
| 2026-09-01 | Appelhans Dannielle | A (A) | 1,161 | $0 | 1,161 | Form 4 |
| 2026-08-19 | Torley Helen | M (A) | 20,000 | $18.41 | 787,780 | Form 4 |
| 2026-08-19 | Torley Helen | S (D) | 7,200 | $106.36 | 780,580 | Form 4 |
| 2026-08-19 | Torley Helen | S (D) | 9,600 | $107.22 | 770,980 | Form 4 |
| 2026-08-19 | Torley Helen | S (D) | 3,200 | $107.77 | 767,780 | Form 4 |
| 2026-08-18 | Torley Helen | M (A) | 20,000 | $18.41 | 787,780 | Form 4 |
| 2026-08-18 | Torley Helen | S (D) | 5,703 | $103.08 | 782,077 | Form 4 |
| 2026-08-18 | Torley Helen | S (D) | 4,897 | $104.11 | 777,180 | Form 4 |
| 2026-08-18 | Torley Helen | S (D) | 9,400 | $104.87 | 767,780 | Form 4 |
| 2026-08-17 | Torley Helen | S (D) | 7,500 | $103.48 | 767,780 | Form 4 |
| 2026-08-17 | Torley Helen | S (D) | 9,000 | $102.55 | 775,280 | Form 4 |
| 2026-08-17 | Torley Helen | S (D) | 2,100 | $101.77 | 784,280 | Form 4 |
| 2026-08-17 | Torley Helen | S (D) | 500 | $100.46 | 786,380 | Form 4 |
| 2026-08-17 | Torley Helen | M (A) | 20,000 | $18.41 | 787,780 | Form 4 |
| 2026-08-17 | Torley Helen | S (D) | 900 | $98.96 | 786,880 | Form 4 |
| 2026-08-10 | Connaughton Bernadette | S (D) | 1,626 | $102.8 | 40,418 | Form 4 |
| 2026-07-08 | Torley Helen | M (A) | 1,923 | $12.07 | 769,703 | Form 4 |
| 2026-07-08 | Torley Helen | S (D) | 888 | $79.28 | 768,815 | Form 4 |
| 2026-07-08 | Torley Helen | S (D) | 1,035 | $80.19 | 767,780 | Form 4 |
| 2026-07-01 | Connaughton Bernadette | S (D) | 625 | $77.21 | 42,044 | Form 4 |
| 2026-07-01 | Connaughton Bernadette | S (D) | 1,000 | $76.4 | 42,669 | Form 4 |
| 2026-06-30 | Ramsay David A | F (D) | 5,408 | $78.27 | 4,592 | Form 4 |
| 2026-06-30 | Ramsay David A | M (A) | 10,000 | $0 | 10,000 | Form 4 |
Transaction codes in this quarter
Get HALO insider transactions through the API
curl "https://sec-api.dev/api/v1/insider-transactions?period=2026q3&cik=1159036&limit=100" \
-H "Authorization: Bearer $SEC_API_KEY"Insider trading API guide · HALO company page · Halozyme Therapeutics, Inc. on SEC.gov
Questions
Are insiders buying or selling Halozyme Therapeutics, Inc. (HALO)?
In Q3 2026, insiders at Halozyme Therapeutics, Inc. reported 37 non-derivative transactions on 10 Forms 3, 4 and 5: 0 open-market purchases and 27 sales worth $15.2M. Grants, tax withholding and option exercises are counted as transactions but are not purchases or sales.
Where do these Halozyme Therapeutics, Inc. insider trades come from?
From the SEC Insider Transactions Data Sets for Q3 2026, which republish the Forms 3, 4 and 5 filed on EDGAR. Each row links to its filing on SEC.gov.
Plain-text version for agents and LLMs: /insider-trading/halo.md
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