• $106.9M
    Market Cap
  • 56.30%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
RA CAPITAL MANAGEMENT, L.P.
13.01%
8.5M
0 (0.00%)
Mar 31, 2026
SAMSARA BIOCAPITAL, LLC
13.01%
8.5M
0 (0.00%)
Mar 31, 2026
AWM INVESTMENT COMPANY, INC.
9.95%
6.5M
0 (0.00%)
Mar 31, 2026
VANGUARD GROUP INC
7.82%
5.1M
+4.2M (+82.69%)
Dec 31, 2025
N/A
7.08%
4.6M
+4.6M (+100.00%)
Mar 31, 2026
LONGAEVA PARTNERS L.P.
3.57%
2.3M
+216,024 (+9.27%)
Mar 31, 2026
SIREN, L.L.C.
3.06%
2.0M
0 (0.00%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions142.1M (79.53%)
  • Mutual Funds19.9M (11.14%)
  • Insiders16.7M (9.33%)
  • Other0 (0.00%)

Insider Transactions

  • 9.33% (16.7M)
    Current InsiderOwnership (%, shares)
  • 1
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 1
    Number of InsiderSelling (last 12 months)
  • $15.2M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
IMRAN MIR A
Award
May 28, 2026
$0.00
123,600
$0.00
123,600
Bassan Abraham
Award
May 28, 2026
$0.00
123,600
$0.00
123,600
Rometty Lisa Ann
Award
May 28, 2026
$0.00
123,600
$0.00
123,600
Bailey Vasudev Jaiprakash
Award
Oct 23, 2025
$0.00
100,000
$0.00
100,000
Bassan Abraham
Award
Oct 23, 2025
$0.00
100,000
$0.00
100,000
IMRAN MIR A
Buy
Oct 23, 2025
$0.00
2.1M
$0.00
2.1M
IMRAN MIR A
Buy
Oct 23, 2025
$1.3M
2.1M
$0.60
2.1M
South Cone Investments Limited Partnership
Sell
Oct 21, 2025
$11.1M
4.0M
$2.77
2.4M
South Cone Investments Limited Partnership
Sell
Oct 20, 2025
$4.6M
1.9M
$2.41
6.4M
McKinley Kate
Chief Business Officer
Award
Aug 01, 2025
$0.00
120,000
$0.00
120,000
Ausiello Dennis A
Award
May 28, 2025
$0.00
50,000
$0.00
50,000
Farquharson Andrew
Award
May 28, 2025
$0.00
50,000
$0.00
50,000
Nanavaty Maulik
Award
May 28, 2025
$0.00
50,000
$0.00
50,000
BUTEL JEAN LUC
Award
May 28, 2025
$0.00
50,000
$0.00
50,000
Rometty Lisa Ann
Award
May 28, 2025
$0.00
50,000
$0.00
50,000
McKinley Kate
Chief Business Officer
Award
May 23, 2025
$0.00
325,000
$0.00
325,000
Imran Talat
Chief Executive Officer
Award
May 23, 2025
$0.00
1.1M
$0.00
1.1M
Sanford Svai S
Chief Financial Officer
Award
May 23, 2025
$0.00
325,000
$0.00
325,000
Hashim Mir
Chief Scientific Officer
Award
May 23, 2025
$0.00
325,000
$0.00
325,000
Rometty Lisa Ann
Return
Dec 16, 2024
$0.00
101,276
$0.00
0
DEBUONO LAUREEN
Return
Dec 16, 2024
$0.00
101,276
$0.00
0
IMRAN MIR A
Return
Dec 16, 2024
$0.00
101,276
$0.00
0
BUTEL JEAN LUC
Return
Dec 16, 2024
$0.00
101,276
$0.00
0
Rometty Lisa Ann
Award
Dec 16, 2024
$0.00
101,276
$0.00
101,276
Nanavaty Maulik
Return
Dec 16, 2024
$0.00
101,276
$0.00
0
Ausiello Dennis A
Return
Dec 16, 2024
$0.00
101,276
$0.00
0
Farquharson Andrew
Return
Dec 16, 2024
$0.00
101,276
$0.00
0
Rometty Lisa Ann
Return
Dec 16, 2024
$0.00
17,708
$0.00
0
DEBUONO LAUREEN
Award
Dec 16, 2024
$0.00
101,276
$0.00
101,276
IMRAN MIR A
Award
Dec 16, 2024
$0.00
101,276
$0.00
101,276