CDIO
CARDIO DGNS HLD (CDIO)
NASDAQ
$2.19-$0.17 (-7.02%)
Price as of Jun 03, 2026 6:56 PM EDT
  • $5.6M
    Market Cap
  • -46.59%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK INC.
51.53%
1.1M
0 (0.00%)
Jun 30, 2024
LINDEN ADVISORS LP
4.14%
85,713
+85,713 (+100.00%)
Dec 31, 2022
JANE STREET GROUP, LLC
3.93%
81,283
+81,283 (+100.00%)
Mar 31, 2026
HRT FINANCIAL LP
3.02%
62,482
+62,482 (+100.00%)
Mar 31, 2026
BLACKROCK, INC.
1.68%
34,708
-859 (-2.47%)
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
1.55%
32,177
+17,042 (+52.96%)
Mar 31, 2026
POLAR ASSET MANAGEMENT PARTNERS INC.
1.24%
25,698
+25,698 (+100.00%)
Dec 31, 2022

Current Ownership Distribution

  • Mutual Funds5.2M (37.06%)
  • Insiders4.8M (33.78%)
  • Institutions4.1M (29.16%)
  • Other0 (0.00%)

Insider Transactions

  • 33.78% (4.8M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    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
Betts Wendy J
Award
Mar 31, 2026
$6,249.75
3,205
$1.95
9,513
Intrater James
Award
Mar 31, 2026
$6,249.75
3,205
$1.95
10,464
Burton Paul Frederick
Award
Mar 31, 2026
$6,249.75
3,205
$1.95
10,464
Fung Peter K
Award
Dec 31, 2025
$6,249.26
2,306
$2.71
6,308
Betts Wendy J
Award
Dec 31, 2025
$6,249.26
2,306
$2.71
6,308
Intrater James
Award
Dec 31, 2025
$6,249.26
2,306
$2.71
7,259
Fung Peter K
Award
Sep 30, 2025
$6,251.59
1,559
$4.01
4,002
Intrater James
Award
Sep 30, 2025
$6,251.59
1,559
$4.01
4,953
Burton Paul Frederick
Award
Sep 30, 2025
$6,251.59
1,559
$4.01
4,953
Betts Wendy J
Award
Sep 30, 2025
$6,251.59
1,559
$4.01
4,002
Fung Peter K
Award
Jun 30, 2025
$6,249.60
1,736
$3.60
2,443
Burton Paul Frederick
Award
Jun 30, 2025
$6,249.60
1,736
$3.60
3,394
Betts Wendy J
Award
Jun 30, 2025
$6,249.60
1,736
$3.60
2,443
Intrater James
Award
Jun 30, 2025
$6,249.60
1,736
$3.60
3,394
Fung Peter K
Award
Mar 31, 2025
$6,249.87
18,939
$0.33
21,211
Intrater James
Award
Mar 31, 2025
$6,249.87
18,939
$0.33
49,744
Betts Wendy J
Award
Mar 31, 2025
$6,249.87
18,939
$0.33
21,211
Burton Paul Frederick
Award
Mar 31, 2025
$6,249.87
18,939
$0.33
49,744
Intrater James
Award
Dec 31, 2024
$4,180.48
4,544
$0.92
30,805
Burton Paul Frederick
Award
Dec 31, 2024
$4,180.48
4,544
$0.92
30,805
Burton Paul Frederick
Award
Sep 30, 2024
$4,110.92
18,686
$0.22
26,261
Philibert Robert
Chief Medical Officer
Buy
Sep 06, 2024
$7,638.51
26,615
$0.29
1.7M
Philibert Robert
Chief Medical Officer
Buy
Sep 06, 2024
$2,124.61
7,460
$0.28
1.7M