Halozyme Therapeutics, Inc. (HALO)
Halozyme Therapeutics, Inc. (HALO) Insider Trading
Directors, officers and holders of more than 10% of HALO report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 503 transactions on file: 0 with code P, 31 with code S and 19 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 8, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Oct 8, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 4,810 | $108.18 | $520,341 |
| Oct 8, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Oct 8, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 200 | $110.51 | $22,102 |
| Oct 8, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 3,090 | $108.91 | $336,526 |
| Oct 8, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 11,900 | $110.00 | $1,308,941 |
| Oct 7, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Oct 7, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 200 | $113.69 | $22,739 |
| Oct 7, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 10,300 | $111.84 | $1,151,942 |
| Oct 7, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 900 | $112.78 | $101,502 |
| Oct 7, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Oct 7, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 8,600 | $111.03 | $954,867 |
| Oct 6, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Oct 6, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 2,300 | $107.90 | $248,175 |
| Oct 6, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 6,000 | $109.33 | $656,004 |
| Oct 6, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 9,920 | $109.89 | $1,090,119 |
| Oct 6, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 1,780 | $110.81 | $197,245 |
| Oct 6, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Oct 1, 2026 | Posard Matthew L. | Director | S Sale | 730 | $107.17 | $78,233 |
| Oct 1, 2026 | Posard Matthew L. | Director | S Sale | 100 | $110.04 | $11,004 |
| Oct 1, 2026 | Daly James M | Director | A Award | 1,169 | Not measured | Not measured |
| Oct 1, 2026 | Daly James M | Director | A Award | 1,775 | Not measured | Not measured |
| Oct 1, 2026 | Posard Matthew L. | Director | S Sale | 3,300 | $108.45 | $357,898 |
| Oct 1, 2026 | Posard Matthew L. | Director | S Sale | 1,100 | $109.57 | $120,526 |
| Sep 16, 2026 | Posard Matthew L. | Director | S Sale | 4,000 | $108.99 | $435,964 |
| Sep 16, 2026 | Posard Matthew L. | Director | S Sale | 8,896 | $108.04 | $961,124 |
| Sep 16, 2026 | Posard Matthew L. | Director | S Sale | 3,100 | $106.13 | $329,009 |
| Sep 16, 2026 | Posard Matthew L. | Director | S Sale | 3,000 | $106.83 | $320,484 |
| Sep 11, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Sep 11, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 15,492 | $107.15 | $1,660,030 |
| Sep 11, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Sep 11, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 4,508 | $107.55 | $484,826 |
| Sep 10, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Sep 10, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 5,412 | $107.58 | $582,228 |
| Sep 10, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 14,588 | $107.01 | $1,561,091 |
| Sep 10, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Sep 9, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Sep 9, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 6,596 | $107.82 | $711,187 |
| Sep 9, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 100 | $108.67 | $10,867 |
| Sep 9, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 13,304 | $107.22 | $1,426,481 |
| Sep 9, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Sep 1, 2026 | Appelhans Dannielle | Director | A Award | 1,778 | Not measured | Not measured |
| Sep 1, 2026 | Appelhans Dannielle | Director | A Award | 1,161 | Not measured | Not measured |
| Aug 19, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 3,200 | $107.77 | $344,848 |
| Aug 19, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 9,600 | $107.22 | $1,029,350 |
| Aug 19, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Aug 19, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 7,200 | $106.36 | $765,778 |
| Aug 19, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Aug 18, 2026 | Torley Helen | PRESIDENT AND CEO | M Exercise | 20,000 | $18.41 | $368,200 |
| Aug 18, 2026 | Torley Helen | PRESIDENT AND CEO | S Sale | 9,400 | $104.87 | $985,816 |
The full Form 4 history is on the HALO company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.