• $183.4M
    Market Cap
  • 681.51%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
JANUS HENDERSON GROUP PLC
18.28%
6.5M
+632,359 (+9.74%)
Mar 31, 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.
15.00%
5.3M
0 (0.00%)
Mar 31, 2026
DECHENG CAPITAL LLC
12.52%
4.4M
0 (0.00%)
Mar 31, 2026
DECHENG CAPITAL MANAGEMENT III (CAYMAN), LLC
12.52%
4.4M
0 (0.00%)
Sep 30, 2023
ADAR1 CAPITAL MANAGEMENT, LLC
10.49%
3.7M
-1.9M (-50.49%)
Mar 31, 2026
WOODLINE PARTNERS LP
9.86%
3.5M
0 (0.00%)
Mar 31, 2026
ABRDN PLC
9.44%
3.4M
+986,149 (+29.41%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions249.4M (82.09%)
  • Mutual Funds44.6M (14.67%)
  • Insiders9.8M (3.24%)
  • Other0 (0.00%)

Insider Transactions

  • 3.24% (9.8M)
    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)
  • $949,042.79
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Troupin Barbara
Award
May 28, 2026
$0.00
70,000
$0.00
70,000
BRADBURY DANIEL
CHAIRMAN
Award
May 28, 2026
$0.00
70,000
$0.00
70,000
Pruzanski Mark
Award
May 28, 2026
$0.00
70,000
$0.00
70,000
DEMSKI MARTHA J
Award
May 28, 2026
$0.00
70,000
$0.00
70,000
Tom Penny
Principal Accounting Officer
Exempt
May 28, 2026
$0.00
65,000
$0.00
0
Tom Penny
Principal Accounting Officer
Exempt
May 28, 2026
$51,025.00
65,000
$0.79
65,000
Tom Penny
Principal Accounting Officer
Sell
May 28, 2026
$191,750.00
65,000
$2.95
0
Zedelmayer Christine
Sr. Vice President and COO
Exempt
Mar 13, 2026
$0.00
120,312
$0.00
54,688
Zedelmayer Christine
Sr. Vice President and COO
Exempt
Mar 13, 2026
$94,444.92
120,312
$0.79
182,898
Zedelmayer Christine
Sr. Vice President and COO
Sell
Mar 13, 2026
$300,816.09
120,312
$2.50
62,586
Zedelmayer Christine
Sr. Vice President and COO
Exempt
Feb 19, 2026
$0.00
109,375
$0.00
15,625
Zedelmayer Christine
Sr. Vice President and COO
Exempt
Feb 19, 2026
$0.00
76,562
$0.00
98,438
Zedelmayer Christine
Sr. Vice President and COO
Exempt
Feb 19, 2026
$85,859.38
109,375
$0.79
300,819
Zedelmayer Christine
Sr. Vice President and COO
Sell
Feb 19, 2026
$194,840.63
109,375
$1.78
191,444
Zedelmayer Christine
Sr. Vice President and COO
Exempt
Feb 19, 2026
$55,890.26
76,562
$0.73
268,006
Zedelmayer Christine
Sr. Vice President and COO
Sell
Feb 19, 2026
$133,263.82
76,562
$1.74
191,444
Tom Penny
Principal Accounting Officer
Sell
Jan 08, 2026
$8,427.57
6,533
$1.29
0
Steel Bruce D.
Chief Executive Officer
Award
Jan 07, 2026
$0.00
1.8M
$0.00
1.8M
Zedelmayer Christine
Sr. Vice President and COO
Award
Jan 07, 2026
$0.00
500,000
$0.00
500,000
Connelly Stephen
President and CSO
Award
Jan 07, 2026
$0.00
1.1M
$0.00
1.1M
Tom Penny
Principal Accounting Officer
Award
Jan 07, 2026
$0.00
450,000
$0.00
450,000
Zedelmayer Christine
Sr. Vice President and COO
Exempt
Dec 23, 2025
$0.00
100,000
$0.00
0
Zedelmayer Christine
Sr. Vice President and COO
Exempt
Dec 23, 2025
$78,500.00
100,000
$0.79
191,444
Zedelmayer Christine
Sr. Vice President and COO
Sell
Dec 23, 2025
$150,000.00
100,000
$1.50
91,444
Zedelmayer Christine
Sr. Vice President and COO
Sell
Nov 25, 2025
$98.00
100
$0.98
135,146
Zedelmayer Christine
Sr. Vice President and COO
Sell
Nov 25, 2025
$7,598.10
7,998
$0.95
127,148
Steel Bruce D.
President and CEO
Award
Aug 29, 2025
$0.00
1.7M
$0.00
1.7M
Zedelmayer Christine
Sr. Vice President and COO
Award
Aug 29, 2025
$0.00
725,000
$0.00
725,000
Tom Penny
Principal Accounting Officer
Award
Aug 29, 2025
$0.00
525,000
$0.00
525,000
Pruzanski Mark
Award
May 21, 2025
$0.00
20,000
$0.00
20,000