• $1.7B
    Market Cap
  • 328.27%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
SUVRETTA CAPITAL MANAGEMENT, LLC
9.74%
1.2M
+261,096 (+22.64%)
Mar 31, 2026
FIRST LIGHT ASSET MANAGEMENT, LLC
8.29%
980,758
+271,617 (+27.69%)
Mar 31, 2026
BVF INC/IL
8.12%
960,989
+81,980 (+8.53%)
Mar 31, 2026
FRAZIER LIFE SCIENCES MANAGEMENT, L.P.
7.45%
882,400
+160,000 (+18.13%)
Mar 31, 2026
BLACKROCK, INC.
5.80%
686,853
+127,788 (+18.60%)
Mar 31, 2026
JENNISON ASSOCIATES LLC
5.41%
640,611
+253,128 (+39.51%)
Mar 31, 2026
VANGUARD GROUP INC
4.74%
560,616
+65,960 (+11.77%)
Dec 31, 2025

Current Ownership Distribution

  • Institutions42.7M (81.31%)
  • Mutual Funds8.8M (16.70%)
  • Insiders1.0M (1.99%)
  • Other0 (0.00%)

Insider Transactions

  • 1.99% (1.0M)
    Current InsiderOwnership (%, shares)
  • 2
    Number of InsiderBuying (last 12 months)
  • $49.6M
    Amount of InsiderBuying (last 12 months)
  • 1
    Number of InsiderSelling (last 12 months)
  • $2.3M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Goin Kathleen
Chief Operating Officer
Exempt
May 20, 2026
$0.00
2,154
$0.00
10,781
Goin Kathleen
Chief Operating Officer
Exempt
May 20, 2026
$0.00
2,148
$0.00
10,740
Goin Kathleen
Chief Operating Officer
Exempt
May 20, 2026
$15,379.56
2,154
$7.14
2,154
Goin Kathleen
Chief Operating Officer
Exempt
May 20, 2026
$19,503.84
2,148
$9.08
4,302
Goin Kathleen
Chief Operating Officer
Sell
May 20, 2026
$371,094.94
3,363
$110.35
939
Goin Kathleen
Chief Operating Officer
Sell
May 20, 2026
$99,165.00
891
$111.30
48
Goin Kathleen
Chief Operating Officer
Sell
May 20, 2026
$5,370.96
48
$111.89
0
JENKINS GEORGE M
Buy
Mar 30, 2026
$49,973.50
445
$112.30
187,616
Goin Kathleen
Chief Operating Officer
Exempt
Mar 18, 2026
$0.00
2,154
$0.00
15,089
Goin Kathleen
Chief Operating Officer
Exempt
Mar 18, 2026
$0.00
2,148
$0.00
15,036
Goin Kathleen
Chief Operating Officer
Exempt
Mar 18, 2026
$15,379.56
2,154
$7.14
2,154
Goin Kathleen
Chief Operating Officer
Exempt
Mar 18, 2026
$19,503.84
2,148
$9.08
4,302
Goin Kathleen
Chief Operating Officer
Sell
Mar 18, 2026
$266,633.34
2,268
$117.56
2,034
Goin Kathleen
Chief Operating Officer
Sell
Mar 18, 2026
$204,776.81
1,730
$118.37
304
Goin Kathleen
Chief Operating Officer
Sell
Mar 18, 2026
$36,200.84
304
$119.08
0
HERON ELAINE J
Buy
Feb 27, 2026
$300,000.00
2,400
$125.00
47,812
JENKINS GEORGE M
Buy
Feb 27, 2026
$500,000.00
4,000
$125.00
187,171
Goin Kathleen
Chief Operating Officer
Exempt
Feb 18, 2026
$0.00
2,154
$0.00
17,243
Goin Kathleen
Chief Operating Officer
Exempt
Feb 18, 2026
$0.00
2,148
$0.00
17,184
Goin Kathleen
Chief Operating Officer
Exempt
Feb 18, 2026
$15,379.56
2,154
$7.14
2,154
Goin Kathleen
Chief Operating Officer
Exempt
Feb 18, 2026
$19,503.84
2,148
$9.08
4,302
Goin Kathleen
Chief Operating Officer
Sell
Feb 18, 2026
$239,528.78
3,026
$79.16
1,276
Goin Kathleen
Chief Operating Officer
Sell
Feb 18, 2026
$102,035.47
1,276
$79.97
0
Goin Kathleen
Chief Operating Officer
Award
Feb 05, 2026
$0.00
48,956
$0.00
48,956
Kaupinen Wes
President and CEO
Award
Feb 05, 2026
$0.00
124,603
$0.00
124,603
Korenberg Matthew E
CFO, Treasurer
Award
Feb 05, 2026
$0.00
44,123
$0.00
44,123
Martini Jeffrey S
Chief Scientific Officer
Award
Feb 05, 2026
$0.00
64,318
$0.00
64,318
Kline Ashley Hartmann
Chief Commercial Officer
Award
Feb 05, 2026
$0.00
38,517
$0.00
38,517
Goin Kathleen
Chief Operating Officer
Exempt
Jan 21, 2026
$0.00
2,154
$0.00
19,397
Goin Kathleen
Chief Operating Officer
Exempt
Jan 21, 2026
$0.00
2,148
$0.00
19,332