See how company executives and directors have been buying or selling shares over the past 30 days. Insider trading activity can help investors better understand company leadership's actions.
No Insider Transactions found for HALOZYME THERAPEUTICS, INC.
Browse insider buying and selling activity reported to the SEC over the past year, including who traded, when they traded, and the value of each transaction.
DATE INSIDER |
INSIDER | TYPE | SHARES | PRICE | SHARES PRICE VALUE |
|---|---|---|---|---|---|
Oct 08, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
3,090 | $108.91 | 3,090 $108.91 $336,526 |
Oct 08, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
200 | $110.51 | 200 $110.51 $22,102 |
Oct 08, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
11,900 | $110.00 | 11,900 $110.00 $1,308,941 |
Oct 08, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
4,810 | $108.18 | 4,810 $108.18 $520,341 |
Oct 07, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
200 | $113.69 | 200 $113.69 $22,739 |
Oct 07, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
10,300 | $111.84 | 10,300 $111.84 $1,151,942 |
Oct 07, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
900 | $112.78 | 900 $112.78 $101,502 |
Oct 07, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
8,600 | $111.03 | 8,600 $111.03 $954,867 |
Oct 06, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
1,780 | $110.81 | 1,780 $110.81 $197,245 |
Oct 06, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
6,000 | $109.33 | 6,000 $109.33 $656,004 |
Oct 06, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
2,300 | $107.90 | 2,300 $107.90 $248,175 |
Oct 06, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
9,920 | $109.89 | 9,920 $109.89 $1,090,119 |
Oct 01, 2026 Posard Matthew L. |
Posard Matthew L.
|
Sell |
100 | $110.04 | 100 $110.04 $11,004 |
Oct 01, 2026 Posard Matthew L. |
Posard Matthew L.
|
Sell |
1,100 | $109.57 | 1,100 $109.57 $120,526 |
Oct 01, 2026 Posard Matthew L. |
Posard Matthew L.
|
Sell |
3,300 | $108.45 | 3,300 $108.45 $357,898 |
Oct 01, 2026 Posard Matthew L. |
Posard Matthew L.
|
Sell |
730 | $107.17 | 730 $107.17 $78,233 |
Sep 16, 2026 Posard Matthew L. |
Posard Matthew L.
|
Sell |
3,100 | $106.13 | 3,100 $106.13 $329,009 |
Sep 16, 2026 Posard Matthew L. |
Posard Matthew L.
|
Sell |
4,000 | $108.99 | 4,000 $108.99 $435,964 |
Sep 16, 2026 Posard Matthew L. |
Posard Matthew L.
|
Sell |
8,896 | $108.04 | 8,896 $108.04 $961,124 |
Sep 16, 2026 Posard Matthew L. |
Posard Matthew L.
|
Sell |
3,000 | $106.83 | 3,000 $106.83 $320,484 |
Sep 11, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
15,492 | $107.15 | 15,492 $107.15 $1,660,030 |
Sep 11, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
4,508 | $107.55 | 4,508 $107.55 $484,826 |
Sep 10, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
5,412 | $107.58 | 5,412 $107.58 $582,228 |
Sep 10, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
14,588 | $107.01 | 14,588 $107.01 $1,561,091 |
Sep 09, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
100 | $108.67 | 100 $108.67 $10,867 |
Sep 09, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
6,596 | $107.82 | 6,596 $107.82 $711,187 |
Sep 09, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
13,304 | $107.22 | 13,304 $107.22 $1,426,481 |
Aug 19, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
7,200 | $106.36 | 7,200 $106.36 $765,778 |
Aug 19, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
3,200 | $107.77 | 3,200 $107.77 $344,848 |
Aug 19, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
9,600 | $107.22 | 9,600 $107.22 $1,029,350 |
Aug 18, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
4,897 | $104.11 | 4,897 $104.11 $509,827 |
Aug 18, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
9,400 | $104.87 | 9,400 $104.87 $985,816 |
Aug 18, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
5,703 | $103.08 | 5,703 $103.08 $587,882 |
Aug 17, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
500 | $100.46 | 500 $100.46 $50,229 |
Aug 17, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
900 | $98.96 | 900 $98.96 $89,062 |
Aug 17, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
7,500 | $103.48 | 7,500 $103.48 $776,115 |
Aug 17, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
9,000 | $102.55 | 9,000 $102.55 $922,977 |
Aug 17, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
2,100 | $101.77 | 2,100 $101.77 $213,709 |
Aug 10, 2026 Connaughton Bernadette |
Connaughton Bernadette
|
Sell |
1,626 | $102.80 | 1,626 $102.80 $167,153 |
Jul 08, 2026 Torley Helen |
Torley Helen
|
Sell |
1,035 | $80.19 | 1,035 $80.19 $82,994 |
Jul 08, 2026 Torley Helen |
Torley Helen
|
Sell |
888 | $79.28 | 888 $79.28 $70,397 |
Jul 01, 2026 Connaughton Bernadette |
Connaughton Bernadette
|
Sell |
625 | $77.21 | 625 $77.21 $48,256 |
Jul 01, 2026 Connaughton Bernadette |
Connaughton Bernadette
|
Sell |
1,000 | $76.40 | 1,000 $76.40 $76,395 |
Jun 29, 2026 Krishnan Mahesh |
Krishnan Mahesh
|
Sell |
7,304 | $75.00 | 7,304 $75.00 $547,800 |
Jun 03, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
6,100 | $69.69 | 6,100 $69.69 $425,121 |
Jun 03, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
400 | $66.37 | 400 $66.37 $26,547 |
Jun 03, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
1,500 | $67.68 | 1,500 $67.68 $101,513 |
Jun 03, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
2,000 | $68.74 | 2,000 $68.74 $137,472 |
Jun 02, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
16,600 | $66.31 | 16,600 $66.31 $1,100,812 |
Jun 02, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
3,400 | $66.75 | 3,400 $66.75 $226,933 |
Jun 01, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
5,401 | $68.35 | 5,401 $68.35 $369,137 |
Jun 01, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
1,610 | $66.39 | 1,610 $66.39 $106,885 |
Jun 01, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
12,989 | $67.41 | 12,989 $67.41 $875,588 |
Jun 01, 2026 Connaughton Bernadette |
Connaughton Bernadette
|
Sell |
1,625 | $66.21 | 1,625 $66.21 $107,591 |
May 13, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
3,350 | $68.88 | 3,350 $68.88 $230,748 |
May 13, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
3,950 | $69.79 | 3,950 $69.79 $275,659 |
May 13, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
600 | $70.81 | 600 $70.81 $42,487 |
May 13, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
2,100 | $68.10 | 2,100 $68.10 $143,014 |
May 12, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
2,800 | $73.12 | 2,800 $73.12 $204,739 |
May 12, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
100 | $67.85 | 100 $67.85 $6,785 |
May 12, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
5,900 | $72.15 | 5,900 $72.15 $425,673 |
May 12, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
1,398 | $70.29 | 1,398 $70.29 $98,261 |
May 12, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
9,802 | $71.37 | 9,802 $71.37 $699,569 |
May 11, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
6,700 | $66.33 | 6,700 $66.33 $444,391 |
May 11, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
9,725 | $64.63 | 9,725 $64.63 $628,536 |
May 11, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
3,575 | $65.46 | 3,575 $65.46 $234,012 |
May 01, 2026 Connaughton Bernadette |
Connaughton Bernadette
|
Sell |
1,625 | $63.48 | 1,625 $63.48 $103,155 |
Apr 06, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
4,100 | $64.02 | 4,100 $64.02 $262,462 |
Apr 06, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
5,900 | $63.14 | 5,900 $63.14 $372,520 |
Apr 02, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
15,800 | $64.06 | 15,800 $64.06 $1,012,195 |
Apr 02, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
4,200 | $64.89 | 4,200 $64.89 $272,525 |
Apr 01, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
19,000 | $65.36 | 19,000 $65.36 $1,241,802 |
Apr 01, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
1,000 | $65.71 | 1,000 $65.71 $65,714 |
Mar 04, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
2,671 | $70.95 | 2,671 $70.95 $189,494 |
Mar 04, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
7,329 | $69.94 | 7,329 $69.94 $512,620 |
Mar 03, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
6,519 | $69.33 | 6,519 $69.33 $451,982 |
Mar 03, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
13,481 | $68.85 | 13,481 $68.85 $928,167 |
Mar 02, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
578 | $70.46 | 578 $70.46 $40,726 |
Mar 02, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
15,322 | $69.80 | 15,322 $69.80 $1,069,460 |
Mar 02, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
4,100 | $69.20 | 4,100 $69.20 $283,708 |
Feb 05, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
4,624 | $78.94 | 4,624 $78.94 $365,000 |
Feb 05, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
5,376 | $78.38 | 5,376 $78.38 $421,366 |
Feb 04, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
9,900 | $76.94 | 9,900 $76.94 $761,666 |
Feb 04, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
10,100 | $77.54 | 10,100 $77.54 $783,154 |
Feb 03, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
9,659 | $75.94 | 9,659 $75.94 $733,543 |
Feb 03, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
2,551 | $74.88 | 2,551 $74.88 $191,016 |
Feb 03, 2026 Torley Helen |
Torley Helen
President and CEO
|
Sell |
7,790 | $76.73 | 7,790 $76.73 $597,758 |
Jan 05, 2026 Connaughton Bernadette |
Connaughton Bernadette
|
Sell |
2,000 | $70.25 | 2,000 $70.25 $140,500 |
Dec 01, 2025 Connaughton Bernadette |
Connaughton Bernadette
|
Sell |
829 | $71.60 | 829 $71.60 $59,356 |
Dec 01, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
261 | $71.60 | 261 $71.60 $18,688 |
Dec 01, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
500 | $70.36 | 500 $70.36 $35,181 |
Dec 01, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
5,402 | $69.44 | 5,402 $69.44 $375,120 |
Dec 01, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
10,406 | $68.51 | 10,406 $68.51 $712,936 |
View older insider trading records reported to the SEC to research long-term buying and selling trends.
DATE INSIDER |
INSIDER | TYPE | SHARES | PRICE | SHARES PRICE VALUE |
|---|---|---|---|---|---|
Nov 12, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
498 | $71.67 | 498 $71.67 $35,690 |
Nov 12, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
12,718 | $70.22 | 12,718 $70.22 $893,033 |
Nov 12, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
6,784 | $71.09 | 6,784 $71.09 $482,268 |
Nov 11, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
4,500 | $67.89 | 4,500 $67.89 $305,514 |
Nov 11, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
11,500 | $69.73 | 11,500 $69.73 $801,907 |
Nov 11, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
4,000 | $68.80 | 4,000 $68.80 $275,180 |
Nov 10, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
19,900 | $68.71 | 19,900 $68.71 $1,367,409 |
Nov 10, 2025 Connaughton Bernadette |
Connaughton Bernadette
|
Sell |
2,000 | $68.48 | 2,000 $68.48 $136,960 |
Nov 10, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
100 | $69.30 | 100 $69.30 $6,930 |
Nov 01, 2025 Caudill Cortney |
Caudill Cortney
SVP, Chief Operating Officer
|
Sell |
4,263 | $65.19 | 4,263 $65.19 $277,905 |
Oct 03, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
2,707 | $70.58 | 2,707 $70.58 $191,065 |
Oct 03, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
2,334 | $69.83 | 2,334 $69.83 $162,983 |
Oct 03, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
724 | $71.67 | 724 $71.67 $51,891 |
Oct 03, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
14,235 | $68.47 | 14,235 $68.47 $974,699 |
Oct 02, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
2,400 | $72.07 | 2,400 $72.07 $172,956 |
Oct 02, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
700 | $73.24 | 700 $73.24 $51,265 |
Oct 02, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
6,600 | $70.51 | 6,600 $70.51 $465,359 |
Oct 02, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
10,200 | $71.28 | 10,200 $71.28 $727,036 |
Oct 02, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
100 | $74.67 | 100 $74.67 $7,467 |
Oct 01, 2025 Torley Helen |
Torley Helen
President and CEO
|
Sell |
11,705 | $75.11 | 11,705 $75.11 $879,151 |
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