• $8.4B
    Market Cap
  • 56.76%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
JANUS HENDERSON GROUP PLC
11.48%
16.6M
+3.2M (+19.24%)
Mar 31, 2026
FMR LLC
11.42%
16.5M
+2.7M (+16.12%)
Mar 31, 2026
VANGUARD GROUP INC
8.44%
12.2M
-126,467 (-1.04%)
Dec 31, 2025
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
8.40%
12.1M
+829,684 (+6.84%)
Mar 31, 2026
RA CAPITAL MANAGEMENT, L.P.
7.95%
11.5M
+750,000 (+6.54%)
Mar 31, 2026
BLACKROCK FUNDING, INC. /DE
7.69%
11.1M
+439,632 (+3.96%)
Dec 31, 2024
BLACKROCK, INC.
7.60%
11.0M
+725,438 (+6.61%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions1.9B (76.35%)
  • Mutual Funds589.1M (23.20%)
  • Insiders11.4M (0.45%)
  • Other0 (0.00%)

Insider Transactions

  • 0.45% (11.4M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 3
    Number of InsiderSelling (last 12 months)
  • $253.4M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Wassil Jim
CHIEF OPERATING OFFICER
Exempt
Jul 01, 2026
$0.00
516
$0.00
71,148
Wassil Jim
CHIEF OPERATING OFFICER
Exempt
Jul 01, 2026
$2,760.60
516
$5.35
159,010
Wassil Jim
CHIEF OPERATING OFFICER
Sell
Jul 01, 2026
$100,181.64
1,788
$56.03
157,222
Wassil Jim
CHIEF OPERATING OFFICER
Sell
Jul 01, 2026
$26,207.69
456
$57.47
156,766
Wassil Jim
CHIEF OPERATING OFFICER
Sell
Jul 01, 2026
$346.92
6
$57.82
156,760
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 26, 2026
$362,719.83
6,683
$54.27
468,020
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 26, 2026
$504,956.30
9,137
$55.27
458,883
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 26, 2026
$360,128.46
6,417
$56.12
452,466
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 26, 2026
$16,955.64
312
$54.34
134,903
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 26, 2026
$19,660.46
356
$55.23
134,547
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 26, 2026
$18,589.68
332
$55.99
134,215
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 26, 2026
$11,223.95
207
$54.22
135,008
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 26, 2026
$33,288.79
602
$55.30
134,406
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 26, 2026
$10,746.81
191
$56.27
134,215
Slaoui Moncef
Award
Jun 22, 2026
$0.00
26,061
$0.00
26,061
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Exempt
Jun 18, 2026
$0.00
225
$0.00
0
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Exempt
Jun 18, 2026
$402.75
225
$1.79
497,164
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 18, 2026
$11,814.75
225
$52.51
496,939
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 18, 2026
$1.2M
22,236
$52.50
474,703
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 18, 2026
$52,500.00
1,000
$52.50
135,215
PICKERING GRANT
CHIEF EXECUTIVE OFFICER
Sell
Jun 18, 2026
$52,500.00
1,000
$52.50
135,215
Paya Carlos V
Award
Jun 15, 2026
$0.00
11,389
$0.00
11,389
Lee Jacks
Award
Jun 15, 2026
$0.00
11,389
$0.00
11,389
Gilbert Halley E
Award
Jun 15, 2026
$0.00
11,389
$0.00
11,389
Lukatch Heath
Award
Jun 15, 2026
$0.00
11,389
$0.00
11,389
Loxam Teri
Award
Jun 15, 2026
$0.00
11,389
$0.00
11,389
Lee Jacks
Award
Jun 15, 2026
$0.00
2,265
$0.00
6,856
Gilbert Halley E
Award
Jun 15, 2026
$0.00
2,265
$0.00
12,481
Lukatch Heath
Award
Jun 15, 2026
$0.00
2,265
$0.00
19,481
Paya Carlos V
Award
Jun 15, 2026
$0.00
2,265
$0.00
6,856