United States Biotechnology & Medical Research

Halozyme Therapeutics Inc (HALO)

Track

Halozyme Therapeutics experienced 22 insider trading transactions over the past 90 days, totaling approximately $6.7 million in sales. Executives and directors, including CEO Helen Torley, executed these planned divestments. This activity follows a strong 46.5% stock price increase and a positive earnings report, with shares currently trading near their 52-week high.
Ticker: HALO Exchange: NSM
Preparing chart...
Download chart Copy chart image Copy link Share to X Share


• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
Upgrade for signal details

Upgrade to see score, net flow, insiders and context.

Upgrade to see full signal details →

Insider trades have triggered activity signals for Halozyme Therapeutics Inc. Upgrade to see score, net flow, insiders and the full signal context.

Open in Activity Signals screener →
Top insiders
Trades
Proposed sale 11 Aug 2026
Value US$48,997.20 | Price 370.93 | Shares 48,301
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-08-11 2026-08-11 PrS Proposed sale
2.0
CORTNEY A CAUDILL

Officer

Officer
48,301
370.93
US$48,997 		48,301 370.93 US$48,997
2026-08-11 2026-08-10 PlS Planned sale
Connaughton Bernadette
Non-Executive Director
15,312 -45.1%
278.40
US$4,962,918 		15,312 -45.1% 278.40 US$4,962,918
2026-08-10 2026-08-10 PrS Proposed sale
BERNADETTE CONNAUGHTON

Director

Non-Executive Director
32,730
69.60
US$1,470,055 		32,730 69.60 US$1,470,055
2026-07-09 2026-07-08 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
1,035 -0.1%
80.19
US$82,994 		1,035 -0.1% 80.19 US$82,994
2026-07-09 2026-07-08 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
888 -0.1%
79.28
US$70,397 		888 -0.1% 79.28 US$70,397
2026-07-02 2026-07-01 PlS Planned sale
Connaughton Bernadette
Non-Executive Director
625 -1.5%
77.21
US$48,256 		625 -1.5% 77.21 US$48,256
2026-07-02 2026-07-01 PlS Planned sale
Connaughton Bernadette
Non-Executive Director
1,000 -2.3%
76.40
US$76,395 		1,000 -2.3% 76.40 US$76,395
2026-06-30 2026-06-29 PlS Planned sale
Krishnan Mahesh
Non-Executive Director
7,304 -33.6%
75.00
US$547,800 		7,304 -33.6% 75.00 US$547,800
2026-06-29 2026-06-29 PrS Proposed sale
MAHESH KRISHNAN

Director

Non-Executive Director
7,304
74.96
US$547,508 		7,304 74.96 US$547,508
2026-06-03 2026-06-03 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
6,100 -0.8%
69.69
US$425,121 		6,100 -0.8% 69.69 US$425,121
2026-06-03 2026-06-03 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
2,000 -0.3%
68.74
US$137,472 		2,000 -0.3% 68.74 US$137,472
2026-06-03 2026-06-03 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
1,500 -0.2%
67.68
US$101,512 		1,500 -0.2% 67.68 US$101,512
2026-06-03 2026-06-03 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
400 -0.1%
66.37
US$26,547 		400 -0.1% 66.37 US$26,547
2026-06-03 2026-06-02 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
3,400 -0.4%
66.75
US$226,933 		3,400 -0.4% 66.75 US$226,933
2026-06-03 2026-06-02 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
16,600 -2.1%
66.31
US$1,100,812 		16,600 -2.1% 66.31 US$1,100,812
2026-06-03 2026-06-01 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
5,401 -0.7%
68.35
US$369,137 		5,401 -0.7% 68.35 US$369,137
2026-06-03 2026-06-01 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
12,989 -1.7%
67.41
US$875,588 		12,989 -1.7% 67.41 US$875,588
2026-06-03 2026-06-01 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
1,610 -0.2%
66.39
US$106,885 		1,610 -0.2% 66.39 US$106,885
2026-06-02 2026-06-01 PlS Planned sale
Connaughton Bernadette
Non-Executive Director
1,625 -3.6%
66.21
US$107,591 		1,625 -3.6% 66.21 US$107,591
2026-05-15 2026-05-15 PrS Proposed sale
3.2
NICOLE LABROSSE

Former Officer

Officer
14,700
67.12
US$986,592 		14,700 67.12 US$986,592
2026-05-13 2026-05-13 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
600 -0.1%
70.81
US$42,487 		600 -0.1% 70.81 US$42,487
2026-05-13 2026-05-13 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
3,950 -0.5%
69.79
US$275,659 		3,950 -0.5% 69.79 US$275,659
2026-05-13 2026-05-13 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
3,350 -0.4%
68.88
US$230,748 		3,350 -0.4% 68.88 US$230,748
2026-05-13 2026-05-13 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
2,100 -0.3%
68.10
US$143,014 		2,100 -0.3% 68.10 US$143,014
2026-05-13 2026-05-12 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
2,800 -0.4%
73.12
US$204,739 		2,800 -0.4% 73.12 US$204,739
2026-05-13 2026-05-12 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
5,900 -0.8%
72.15
US$425,673 		5,900 -0.8% 72.15 US$425,673
2026-05-13 2026-05-12 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
9,802 -1.2%
71.37
US$699,569 		9,802 -1.2% 71.37 US$699,569
2026-05-13 2026-05-12 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
1,398 -0.2%
70.29
US$98,261 		1,398 -0.2% 70.29 US$98,261
2026-05-13 2026-05-12 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
100 -0.0%
67.85
US$6,785 		100 -0.0% 67.85 US$6,785
2026-05-13 2026-05-11 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
6,700 -0.9%
66.33
US$444,391 		6,700 -0.9% 66.33 US$444,391
2026-05-13 2026-05-11 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
3,575 -0.5%
65.46
US$234,012 		3,575 -0.5% 65.46 US$234,012
2026-05-13 2026-05-11 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
9,725 -1.2%
64.63
US$628,536 		9,725 -1.2% 64.63 US$628,536
2026-05-11 2026-05-11 PrS Proposed sale
3.3
Helen Torley

President, CEO, Director

Non-Executive Director
101,923
64.12
US$6,535,303 		101,923 64.12 US$6,535,303
2026-05-05 2026-05-01 PlS Planned sale
Connaughton Bernadette
Non-Executive Director
1,625 -4.1%
63.48
US$103,155 		1,625 -4.1% 63.48 US$103,155
2026-05-01 2026-05-01 PrS Proposed sale
BERNADETTE CONNAUGHTON

Director

Non-Executive Director
4,875
63.66
US$310,342 		4,875 63.66 US$310,342
2026-04-07 2026-04-06 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
4,100 -0.5%
64.02
US$262,462 		4,100 -0.5% 64.02 US$262,462
2026-04-07 2026-04-06 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
5,900 -0.8%
63.14
US$372,520 		5,900 -0.8% 63.14 US$372,520
2026-04-02 2026-04-02 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
4,200 -0.5%
64.89
US$272,525 		4,200 -0.5% 64.89 US$272,525
2026-04-02 2026-04-02 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
4,200 -0.5%
64.89
US$272,525 		4,200 -0.5% 64.89 US$272,525
2026-04-02 2026-04-02 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
15,800 -2.0%
64.06
US$1,012,195 		15,800 -2.0% 64.06 US$1,012,195
2026-04-02 2026-04-01 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
1,000 -0.1%
65.71
US$65,714 		1,000 -0.1% 65.71 US$65,714
2026-04-02 2026-04-01 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
1,000 -0.1%
65.71
US$65,714 		1,000 -0.1% 65.71 US$65,714
2026-04-02 2026-04-01 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
19,000 -2.4%
65.36
US$1,241,802 		19,000 -2.4% 65.36 US$1,241,802
2026-04-02 2026-04-01 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
19,000 -2.4%
65.36
US$1,241,802 		19,000 -2.4% 65.36 US$1,241,802
2026-03-10 2026-03-10 PrS Proposed sale
2.0
CORTNEY A CAUDILL

Officer

Officer
8,857
67.64
US$599,088 		8,857 67.64 US$599,088
2026-03-10 2026-03-10 S Sale
2.0
Caudill Cortney

SVP, CHIEF OPERATING OFFICER

Officer
8,857 -55.7%
67.64
US$599,087 		8,857 -55.7% 67.64 US$599,087
2026-03-10 2026-03-09 S Sale
2.0
Caudill Cortney

SVP, CHIEF OPERATING OFFICER

Officer
2,100 -12.8%
68.25
US$143,329 		2,100 -12.8% 68.25 US$143,329
2026-03-10 2026-03-09 S Sale
2.0
Caudill Cortney

SVP, CHIEF OPERATING OFFICER

Officer
17,900 -52.1%
67.75
US$1,212,743 		17,900 -52.1% 67.75 US$1,212,743
2026-03-09 2026-03-09 PrS Proposed sale
2.0
CORTNEY A CAUDILL

Officer

Officer
20,000
67.80
US$1,356,062 		20,000 67.80 US$1,356,062
2026-03-04 2026-03-04 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
2,671 -0.3%
70.95
US$189,494 		2,671 -0.3% 70.95 US$189,494
2026-03-04 2026-03-04 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
7,329 -0.9%
69.94
US$512,620 		7,329 -0.9% 69.94 US$512,620
2026-03-04 2026-03-03 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
6,519 -0.8%
69.33
US$451,982 		6,519 -0.8% 69.33 US$451,982
2026-03-04 2026-03-03 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
13,481 -1.7%
68.85
US$928,167 		13,481 -1.7% 68.85 US$928,167
2026-03-04 2026-03-02 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
578 -0.1%
70.46
US$40,726 		578 -0.1% 70.46 US$40,726
2026-03-04 2026-03-02 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
15,322 -2.0%
69.80
US$1,069,460 		15,322 -2.0% 69.80 US$1,069,460
2026-03-04 2026-03-02 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
4,100 -0.5%
69.20
US$283,708 		4,100 -0.5% 69.20 US$283,708
2026-02-05 2026-02-05 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
4,624 -0.6%
78.94
US$365,000 		4,624 -0.6% 78.94 US$365,000
2026-02-05 2026-02-05 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
5,376 -0.7%
78.38
US$421,366 		5,376 -0.7% 78.38 US$421,366
2026-02-05 2026-02-04 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
10,100 -1.4%
77.54
US$783,154 		10,100 -1.4% 77.54 US$783,154
2026-02-05 2026-02-04 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
9,900 -1.4%
76.94
US$761,666 		9,900 -1.4% 76.94 US$761,666
2026-02-05 2026-02-03 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
7,790 -1.1%
76.73
US$597,758 		7,790 -1.1% 76.73 US$597,758
2026-02-05 2026-02-03 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
9,659 -1.3%
75.94
US$733,543 		9,659 -1.3% 75.94 US$733,543
2026-02-05 2026-02-03 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
2,551 -0.4%
74.88
US$191,016 		2,551 -0.4% 74.88 US$191,016
2026-02-03 2026-02-03 PrS Proposed sale
3.3
Helen Torley

President, CEO, Director

Non-Executive Director
150,000
74.45
US$11,167,500 		150,000 74.45 US$11,167,500
2026-01-06 2026-01-05 PlS Planned sale
Connaughton Bernadette
Non-Executive Director
2,000 -4.7%
70.25
US$140,500 		2,000 -4.7% 70.25 US$140,500
2026-01-05 2026-01-05 PrS Proposed sale
BERNADETTE CONNAUGHTON

Director

Non-Executive Director
2,000
70.31
US$140,620 		2,000 70.31 US$140,620
2025-12-01 2025-12-01 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
261 -0.0%
71.60
US$18,688 		261 -0.0% 71.60 US$18,688
2025-12-01 2025-12-01 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
500 -0.1%
70.36
US$35,181 		500 -0.1% 70.36 US$35,181
2025-12-01 2025-12-01 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
5,402 -0.8%
69.44
US$375,120 		5,402 -0.8% 69.44 US$375,120
2025-12-01 2025-12-01 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
10,406 -1.4%
68.51
US$712,936 		10,406 -1.4% 68.51 US$712,936
2025-12-01 2025-12-01 PlS Planned sale
Connaughton Bernadette
Non-Executive Director
829 -1.9%
71.60
US$59,356 		829 -1.9% 71.60 US$59,356
2025-11-12 2025-11-12 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
498 -0.1%
71.67
US$35,690 		498 -0.1% 71.67 US$35,690
2025-11-12 2025-11-12 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
6,784 -0.9%
71.09
US$482,268 		6,784 -0.9% 71.09 US$482,268
2025-11-12 2025-11-12 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
12,718 -1.7%
70.22
US$893,033 		12,718 -1.7% 70.22 US$893,033
2025-11-12 2025-11-11 PlS Planned sale
3.3
Torley Helen

PRESIDENT AND CEO

Executive Director
11,500 -1.5%
69.73
US$801,906 		11,500 -1.5% 69.73 US$801,906
Explore more

More insider trading research around Halozyme Therapeutics Inc

More insider trades in United States
Similar Healthcare companies with insider activity
More Pharmaceuticals & Medical Research companies with insider activity
More Biotechnology & Medical Research companies with insider activity
Insider trading in North America