• $169.7M
    Market Cap
  • 56.88%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
RA CAPITAL MANAGEMENT, L.P.
29.24%
4.0M
+4.0M (+100.00%)
Mar 31, 2026
ACORN CAPITAL ADVISORS, LLC
20.77%
2.8M
0 (0.00%)
Mar 31, 2026
STEPSTONE GROUP LP
19.46%
2.7M
+2.2M (+81.51%)
Mar 31, 2026
ADAR1 CAPITAL MANAGEMENT, LLC
17.81%
2.4M
+1.4M (+58.35%)
Mar 31, 2026
PROSIGHT MANAGEMENT, LP
15.76%
2.2M
+1.3M (+62.08%)
Mar 31, 2026
BVF INC/IL
14.47%
2.0M
+2.0M (+100.00%)
Mar 31, 2026
VIVO CAPITAL, LLC
14.10%
1.9M
+1.9M (+100.00%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions68.7M (88.84%)
  • Insiders7.9M (10.24%)
  • Mutual Funds705,680 (0.91%)
  • Other0 (0.00%)

Insider Transactions

  • 10.24% (7.9M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 2
    Number of InsiderSelling (last 12 months)
  • $187,810.35
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Agresta Samuel
Chief Medical Officer
Award
Apr 01, 2026
$0.00
110,000
$0.00
110,000
Saccomano Nicholas A
President and CEO
Award
Apr 01, 2026
$0.00
330,000
$0.00
330,000
Leverone Jason A.
Chief Financial Officer
Award
Apr 01, 2026
$0.00
110,000
$0.00
110,000
Saccomano Nicholas A
President and CEO
Sell
Mar 23, 2026
$357.46
86
$4.16
7,333
Leverone Jason A.
Chief Financial Officer
Sell
Mar 23, 2026
$1,251.11
301
$4.16
16,000
Manke Isaac
Award
Dec 31, 2025
$0.00
5,258
$0.00
20,583
Mathers Edward T
Award
Dec 31, 2025
$0.00
3,911
$0.00
15,310
Saccomano Nicholas A
President and CEO
Sell
Dec 22, 2025
$258.19
87
$2.97
7,419
Manke Isaac
Award
Sep 30, 2025
$0.00
5,545
$0.00
15,325
Mathers Edward T
Award
Sep 30, 2025
$0.00
4,125
$0.00
11,399
Leverone Jason A.
Chief Financial Officer
Sell
Sep 22, 2025
$794.92
303
$2.62
12,603
Manke Isaac
Award
Jun 30, 2025
$0.00
6,311
$0.00
9,780
Mathers Edward T
Award
Jun 30, 2025
$0.00
4,694
$0.00
7,274
Saccomano Nicholas A
President and CEO
Sell
Jun 23, 2025
$209.81
88
$2.38
3,594
Leverone Jason A.
Chief Financial Officer
Sell
Jun 23, 2025
$722.41
303
$2.38
12,906
Manke Isaac
Award
May 28, 2025
$0.00
7,650
$0.00
7,650
Jansen Valerie Malyvanh
Award
May 28, 2025
$0.00
7,650
$0.00
7,650
Mathers Edward T
Award
May 28, 2025
$0.00
7,650
$0.00
7,650
GREY MICHAEL G
Award
May 28, 2025
$0.00
7,650
$0.00
7,650
Saccomano Nicholas A
President and CEO
Sell
Apr 07, 2025
$1,378.24
516
$2.67
3,682
Leverone Jason A.
Chief Financial Officer
Sell
Apr 07, 2025
$4,925.32
1,844
$2.67
13,209
Saccomano Nicholas A
President and CEO
Sell
Apr 04, 2025
$1,191.28
358
$3.33
4,198
Leverone Jason A.
Chief Financial Officer
Sell
Apr 04, 2025
$4,252.67
1,278
$3.33
15,053
Mathers Edward T
Award
Mar 31, 2025
$0.00
2,580
$0.00
2,580
Manke Isaac
Award
Mar 31, 2025
$0.00
3,469
$0.00
3,469
Saccomano Nicholas A
President and CEO
Award
Jan 27, 2025
$0.00
130,000
$0.00
130,000
Leverone Jason A.
Chief Financial Officer
Award
Jan 27, 2025
$0.00
65,000
$0.00
65,000
Agresta Samuel
Chief Medical Officer
Award
Jan 27, 2025
$0.00
45,000
$0.00
45,000
Hartley Dylan
Chief Scientific Officer
Award
Jan 27, 2025
$0.00
45,000
$0.00
45,000