• $3.4B
    Market Cap
  • 48.63%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
10.19%
16.2M
+7.7M (+47.34%)
Jun 30, 2026
BLACKROCK, INC.
8.84%
14.0M
+991,979 (+7.07%)
Jun 30, 2026
BLACKROCK FUNDING, INC. /DE
8.77%
13.9M
+131,728 (+0.95%)
Dec 31, 2024
BLACKROCK INC.
8.30%
13.2M
+974,706 (+7.40%)
Jun 30, 2024
VANGUARD GROUP INC
8.23%
13.1M
+1.1M (+8.16%)
Dec 31, 2025
BAILLIE GIFFORD & CO
7.54%
12.0M
-106,249 (-0.89%)
Jun 30, 2026
STATE STREET CORP
4.44%
7.0M
+777,303 (+11.03%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions2.3B (77.44%)
  • Mutual Funds622.2M (21.37%)
  • Insiders34.6M (1.19%)
  • Other0 (0.00%)

Insider Transactions

  • 1.19% (34.6M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 4
    Number of InsiderSelling (last 12 months)
  • $27.4M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Chin Peter Scott
Chief Medical Officer
Sell
Sep 04, 2026
$36,867.66
1,654
$22.29
204,538
Thornberry Nancy
Sell
Sep 02, 2026
$247,328.40
10,824
$22.85
20,301
Thornberry Nancy
Sell
Sep 02, 2026
$14,600.10
615
$23.74
19,686
Schuth Alexander O.
COFO and Secretary
Sell
Sep 01, 2026
$64,881.92
2,768
$23.44
278,995
Watts Ryan J.
President and CEO
Gift
Aug 12, 2026
$0.00
32,220
$0.00
2.1M
Schuth Alexander O.
COFO and Secretary
Sell
Aug 11, 2026
$71,624.99
2,857
$25.07
281,763
Watts Ryan J.
President and CEO
Sell
Jan 06, 2026
$580,767.00
35,198
$16.50
296,833
Schuth Alexander O.
COFO and Secretary
Sell
Jan 06, 2026
$284,097.00
17,218
$16.50
282,828
Schuth Alexander O.
COFO and Secretary
Award
Jan 03, 2026
$0.00
173,100
$0.00
173,100
Schuth Alexander O.
COFO and Secretary
Award
Jan 03, 2026
$0.00
57,700
$0.00
300,046
Van Hauwermeiren Timothy
Award
Nov 04, 2025
$0.00
31,897
$0.00
31,897
Van Hauwermeiren Timothy
Award
Nov 04, 2025
$0.00
10,632
$0.00
10,632
Watts Ryan J.
President and CEO
Gift
Sep 03, 2025
$0.00
50,000
$0.00
2.2M
Ho Carole
Chief Medical Officer
Sell
Aug 13, 2025
$11,799.84
806
$14.64
216,585
Ho Carole
Chief Medical Officer
Sell
Aug 12, 2025
$39,884.46
2,937
$13.58
217,391
Ho Carole
Chief Medical Officer
Exempt
Aug 05, 2025
$0.00
44,655
$0.00
62,500
Ho Carole
Chief Medical Officer
Exempt
Aug 05, 2025
$30,365.40
44,655
$0.68
220,328
Klein Peter S
Award
Jun 03, 2025
$0.00
18,111
$0.00
18,111
Tessier-Lavigne Marc
Award
Jun 03, 2025
$0.00
18,111
$0.00
18,111
FLATLEY JAY T
Award
Jun 03, 2025
$0.00
18,111
$0.00
18,111
Krognes Steve E.
Award
Jun 03, 2025
$0.00
18,111
$0.00
18,111
BAKER BROS. ADVISORS LP
Award
Jun 03, 2025
$0.00
31,695
$0.00
31,695
Schenkein David P
Award
Jun 03, 2025
$0.00
18,111
$0.00
18,111
FLATLEY JAY T
Award
Jun 03, 2025
$0.00
6,037
$0.00
16,220
Krognes Steve E.
Award
Jun 03, 2025
$0.00
6,037
$0.00
31,794
Klein Peter S
Award
Jun 03, 2025
$0.00
6,037
$0.00
27,533
Tessier-Lavigne Marc
Award
Jun 03, 2025
$0.00
6,037
$0.00
1.9M
BAKER BROS. ADVISORS LP
Award
Jun 03, 2025
$0.00
31,695
$0.00
31,695
Schenkein David P
Award
Jun 03, 2025
$0.00
6,037
$0.00
15,257
BAKER BROS. ADVISORS LP
Award
Jun 03, 2025
$0.00
10,565
$0.00
336,867