HALO
Halozyme Therape (HALO)
NASDAQ
$113.00+$0.55 (+0.49%)
Price as of Sep 18, 2026 7:56 PM EDT
  • $12.8B
    Market Cap
  • 44.52%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
DLD ASSET MANAGEMENT, LP
25.29%
30.0M
+17.5M (+58.33%)
Sep 30, 2025
BLACKROCK INC.
14.85%
17.6M
-621,611 (-3.53%)
Jun 30, 2024
BLACKROCK FUNDING, INC. /DE
14.81%
17.6M
+136,136 (+0.77%)
Dec 31, 2024
BLACKROCK, INC.
11.19%
13.3M
+6,042 (+0.05%)
Jun 30, 2026
VANGUARD GROUP INC
9.75%
11.6M
-62,890 (-0.54%)
Dec 31, 2025
BB BIOTECH AG
7.02%
8.3M
0 (0.00%)
Mar 31, 2019
VANGUARD CAPITAL MANAGEMENT LLC
4.51%
5.4M
+80,094 (+1.50%)
Jun 30, 2026

Current Ownership Distribution

  • Mutual Funds2.9B (53.93%)
  • Institutions2.4B (45.91%)
  • Insiders8.6M (0.16%)
  • Other0 (0.00%)

Insider Transactions

  • 0.16% (8.6M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 6
    Number of InsiderSelling (last 12 months)
  • $3.1B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Posard Matthew L.
Sell
Sep 16, 2026
$329,009.20
3,100
$106.13
74,735
Posard Matthew L.
Sell
Sep 16, 2026
$320,484.00
3,000
$106.83
71,735
Posard Matthew L.
Sell
Sep 16, 2026
$961,123.84
8,896
$108.04
62,839
Posard Matthew L.
Sell
Sep 16, 2026
$435,964.00
4,000
$108.99
58,839
Torley Helen
PRESIDENT AND CEO
Exempt
Aug 19, 2026
$368,200.00
20,000
$18.41
141,552
Torley Helen
PRESIDENT AND CEO
Exempt
Aug 19, 2026
$368,200.00
20,000
$18.41
787,780
Torley Helen
PRESIDENT AND CEO
Sell
Aug 19, 2026
$765,777.60
7,200
$106.36
780,580
Torley Helen
PRESIDENT AND CEO
Sell
Aug 19, 2026
$1.0M
9,600
$107.22
770,980
Torley Helen
PRESIDENT AND CEO
Sell
Aug 19, 2026
$344,848.00
3,200
$107.77
767,780
Torley Helen
PRESIDENT AND CEO
Exempt
Aug 18, 2026
$368,200.00
20,000
$18.41
787,780
Torley Helen
PRESIDENT AND CEO
Sell
Aug 18, 2026
$587,882.35
5,703
$103.08
782,077
Torley Helen
PRESIDENT AND CEO
Sell
Aug 18, 2026
$509,826.67
4,897
$104.11
777,180
Torley Helen
PRESIDENT AND CEO
Sell
Aug 18, 2026
$985,815.60
9,400
$104.87
767,780
Torley Helen
PRESIDENT AND CEO
Exempt
Aug 18, 2026
$368,200.00
20,000
$18.41
161,552
Torley Helen
PRESIDENT AND CEO
Exempt
Aug 17, 2026
$368,200.00
20,000
$18.41
181,552
Torley Helen
PRESIDENT AND CEO
Exempt
Aug 17, 2026
$368,200.00
20,000
$18.41
787,780
Torley Helen
PRESIDENT AND CEO
Sell
Aug 17, 2026
$89,062.20
900
$98.96
786,880
Torley Helen
PRESIDENT AND CEO
Sell
Aug 17, 2026
$50,228.50
500
$100.46
786,380
Torley Helen
PRESIDENT AND CEO
Sell
Aug 17, 2026
$213,708.60
2,100
$101.77
784,280
Torley Helen
PRESIDENT AND CEO
Sell
Aug 17, 2026
$922,977.00
9,000
$102.55
775,280
Torley Helen
PRESIDENT AND CEO
Sell
Aug 17, 2026
$776,115.00
7,500
$103.48
767,780
Connaughton Bernadette
Sell
Aug 10, 2026
$167,152.80
1,626
$102.80
40,418
Torley Helen
PRESIDENT AND CEO
Exempt
Jul 08, 2026
$23,210.61
1,923
$12.07
0
Torley Helen
PRESIDENT AND CEO
Exempt
Jul 08, 2026
$23,210.61
1,923
$12.07
769,703
Torley Helen
PRESIDENT AND CEO
Sell
Jul 08, 2026
$70,397.09
888
$79.28
768,815
Torley Helen
PRESIDENT AND CEO
Sell
Jul 08, 2026
$82,993.54
1,035
$80.19
767,780
Snellgrove Darren
SVP, Chief Financial Officer
Award
Jul 01, 2026
$0.00
41,554
$0.00
41,554
Connaughton Bernadette
Sell
Jul 01, 2026
$76,395.00
1,000
$76.39
42,669
Snellgrove Darren
SVP, Chief Financial Officer
Award
Jul 01, 2026
$0.00
127,432
$0.00
127,432
Connaughton Bernadette
Sell
Jul 01, 2026
$48,255.63
625
$77.21
42,044