• $264.4M
    Market Cap
  • 168.21%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
ARMISTICE CAPITAL, LLC
9.46%
6.0M
-312,000 (-5.19%)
Mar 31, 2026
BLACKROCK INC.
8.50%
5.4M
-294,466 (-5.45%)
Jun 30, 2024
BLACKROCK FUNDING, INC. /DE
7.96%
5.1M
-348,297 (-6.89%)
Dec 31, 2024
OPPENHEIMERFUNDS, INC.
7.02%
4.5M
+16,569 (+0.37%)
Mar 31, 2019
VANGUARD GROUP INC
6.65%
4.2M
+2,707 (+0.06%)
Dec 31, 2025
RTW INVESTMENTS, LLC
6.25%
4.0M
0 (0.00%)
Dec 31, 2021
BB BIOTECH AG
5.35%
3.4M
+116,728 (+3.43%)
Mar 31, 2019

Current Ownership Distribution

  • Institutions1.0B (79.36%)
  • Mutual Funds259.7M (19.70%)
  • Insiders12.4M (0.94%)
  • Other0 (0.00%)

Insider Transactions

  • 0.94% (12.4M)
    Current InsiderOwnership (%, shares)
  • 1
    Number of InsiderBuying (last 12 months)
  • $108,355.00
    Amount of InsiderBuying (last 12 months)
  • 0
    Number of InsiderSelling (last 12 months)
  • $0.00
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Bonvini Ezio
Sr VP, Research & CSO
Exempt
Feb 15, 2026
$0.00
16,665
$0.00
0
Spitznagel Thomas
Sr VP, Technical Ops
Exempt
Feb 15, 2026
$0.00
13,332
$0.00
0
Koenig Scott
Exempt
Feb 15, 2026
$0.00
21,165
$0.00
0
Smith Beth Ann
VP, Controller & Treasurer
Exempt
Feb 15, 2026
$0.00
1,095
$0.00
0
Bonvini Ezio
Sr VP, Research & CSO
Exempt
Feb 15, 2026
$0.00
16,665
$0.00
152,232
Karrels James
SVP and CFO
Exempt
Feb 15, 2026
$0.00
14,999
$0.00
0
Koenig Scott
Exempt
Feb 15, 2026
$0.00
21,165
$0.00
867,240
Smith Beth Ann
VP, Controller & Treasurer
Exempt
Feb 15, 2026
$0.00
1,095
$0.00
13,204
Bonvini Ezio
Sr VP, Research & CSO
In Kind
Feb 15, 2026
$11,000.43
6,433
$1.71
145,799
Spitznagel Thomas
Sr VP, Technical Ops
Exempt
Feb 15, 2026
$0.00
13,332
$0.00
44,063
Smith Beth Ann
VP, Controller & Treasurer
In Kind
Feb 15, 2026
$723.33
423
$1.71
12,781
Karrels James
SVP and CFO
Exempt
Feb 15, 2026
$0.00
14,999
$0.00
211,827
Spitznagel Thomas
Sr VP, Technical Ops
In Kind
Feb 15, 2026
$9,439.20
5,520
$1.71
38,543
Karrels James
SVP and CFO
In Kind
Feb 15, 2026
$9,900.90
5,790
$1.71
206,037
Bonvini Ezio
Sr VP, Research & CSO
Award
Feb 12, 2026
$0.00
31,250
$0.00
31,250
Smith Beth Ann
VP, Controller & Treasurer
Award
Feb 12, 2026
$0.00
15,625
$0.00
15,625
Bonvini Ezio
Sr VP, Research & CSO
Award
Feb 12, 2026
$0.00
187,500
$0.00
187,500
Spitznagel Thomas
Sr VP, Technical Ops
Award
Feb 12, 2026
$0.00
25,000
$0.00
25,000
Smith Beth Ann
VP, Controller & Treasurer
Award
Feb 12, 2026
$0.00
93,750
$0.00
93,750
Karrels James
SVP and CFO
Award
Feb 12, 2026
$0.00
150,000
$0.00
150,000
Spitznagel Thomas
Sr VP, Technical Ops
Award
Feb 12, 2026
$0.00
150,000
$0.00
150,000
Karrels James
SVP and CFO
Award
Feb 12, 2026
$0.00
25,000
$0.00
25,000
Koenig Scott
Exempt
Feb 08, 2026
$0.00
15,831
$0.00
15,832
Peters Jeffrey Stuart
Senior VP, GC, and Secretary
Exempt
Feb 08, 2026
$0.00
8,999
$0.00
9,000
Karrels James
SVP and CFO
Exempt
Feb 08, 2026
$0.00
9,999
$0.00
9,999
Peters Jeffrey Stuart
Senior VP, GC, and Secretary
Exempt
Feb 08, 2026
$0.00
8,999
$0.00
26,394
Koenig Scott
Exempt
Feb 08, 2026
$0.00
15,831
$0.00
846,075
Peters Jeffrey Stuart
Senior VP, GC, and Secretary
In Kind
Feb 08, 2026
$6,287.94
3,474
$1.81
22,920
Karrels James
SVP and CFO
Exempt
Feb 08, 2026
$0.00
9,999
$0.00
200,688
Karrels James
SVP and CFO
In Kind
Feb 08, 2026
$6,986.60
3,860
$1.81
196,828