• $485.6M
    Market Cap
  • -8.75%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
JANUS HENDERSON GROUP PLC
19.63%
1.3M
0 (0.00%)
Mar 31, 2026
JUPITER TOPCO LLC
19.55%
1.3M
+1.3M (+100.00%)
Jun 30, 2026
RA CAPITAL MANAGEMENT, L.P.
9.94%
667,207
0 (0.00%)
Jun 30, 2026
BLACKROCK, INC.
5.20%
348,819
+32,252 (+9.25%)
Jun 30, 2026
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)
4.82%
323,745
0 (0.00%)
Jun 30, 2026
SATURN V CAPITAL MANAGEMENT LLC
4.65%
311,976
-33,650 (-10.79%)
Jun 30, 2026
VANGUARD GROUP INC
4.38%
293,816
+85,598 (+29.13%)
Dec 31, 2025

Current Ownership Distribution

  • Institutions30.9M (88.25%)
  • Mutual Funds2.7M (7.60%)
  • Insiders1.5M (4.15%)
  • Other0 (0.00%)

Insider Transactions

  • 4.15% (1.5M)
    Current InsiderOwnership (%, shares)
  • 1
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 3
    Number of InsiderSelling (last 12 months)
  • $7.4M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Robinson Chandler
Chief Executive Officer
In Kind
Oct 20, 2026
$55,276.23
597
$92.59
104,127
STARR CHRISTOPHER M
Exempt
Oct 01, 2026
$0.00
8,400
$0.00
8,400
STARR CHRISTOPHER M
Exempt
Oct 01, 2026
$42.00
8,400
$0.01
13,573
STARR CHRISTOPHER M
Sell
Oct 01, 2026
$361,634.79
4,631
$78.09
8,942
STARR CHRISTOPHER M
Sell
Oct 01, 2026
$234,095.40
2,970
$78.82
5,972
STARR CHRISTOPHER M
Sell
Oct 01, 2026
$63,656.33
799
$79.67
5,173
Vu Quan Anh
Chief Financial Officer
Exempt
Sep 30, 2026
$0.00
614
$0.00
7,984
Robinson Chandler
Chief Executive Officer
Exempt
Sep 30, 2026
$0.00
9,801
$0.00
83,602
Vu Quan Anh
Chief Financial Officer
Exempt
Sep 30, 2026
$0.00
614
$0.00
2,835
Robinson Chandler
Chief Executive Officer
Exempt
Sep 30, 2026
$0.00
9,801
$0.00
109,068
Vu Quan Anh
Chief Financial Officer
In Kind
Sep 30, 2026
$14,340.60
180
$79.67
2,655
Robinson Chandler
Chief Executive Officer
In Kind
Sep 30, 2026
$346,086.48
4,344
$79.67
104,724
Tsuchimoto Kim R
Sell
Aug 26, 2026
$52,782.55
485
$108.83
11,001
Tsuchimoto Kim R
Sell
Aug 26, 2026
$67,379.40
615
$109.56
10,386
Tsuchimoto Kim R
Sell
Aug 26, 2026
$77,455.00
700
$110.65
9,686
Tsuchimoto Kim R
Sell
Aug 26, 2026
$122,800.32
1,098
$111.84
8,588
Tsuchimoto Kim R
Sell
Aug 26, 2026
$67,983.86
602
$112.93
7,986
Tsuchimoto Kim R
Sell
Aug 26, 2026
$67,165.60
590
$113.84
7,396
Cittadine Andrew
Chief Operating Officer
Exempt
Jun 30, 2026
$0.00
5,254
$0.00
39,499
Vu Quan Anh
Chief Financial Officer
Exempt
Jun 30, 2026
$0.00
1,228
$0.00
8,598
Cittadine Andrew
Chief Operating Officer
Exempt
Jun 30, 2026
$0.00
5,254
$0.00
57,923
Vu Quan Anh
Chief Financial Officer
Exempt
Jun 30, 2026
$0.00
1,228
$0.00
2,728
Cittadine Andrew
Chief Operating Officer
In Kind
Jun 30, 2026
$213,790.31
2,309
$92.59
55,614
Vu Quan Anh
Chief Financial Officer
In Kind
Jun 30, 2026
$46,943.13
507
$92.59
2,221
Robinson Chandler
Chief Executive Officer
Exempt
Jun 30, 2026
$0.00
12,873
$0.00
93,403
Robinson Chandler
Chief Executive Officer
Exempt
Jun 30, 2026
$0.00
12,873
$0.00
103,351
Robinson Chandler
Chief Executive Officer
In Kind
Jun 30, 2026
$378,137.56
4,084
$92.59
99,267
Sweeny Nicole
Award
Jun 26, 2026
$0.00
1,284
$0.00
1,284
Robinson Chandler
Chief Executive Officer
Exempt
Mar 31, 2026
$0.00
6,732
$0.00
106,276
Cittadine Andrew
Chief Operating Officer
Exempt
Mar 31, 2026
$0.00
3,514
$0.00
44,753