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CDIO · NASDAQ · Biotechnology

Cardio Diagnostics (CDIO)

Develops genetic-epigenetic blood tests and clinical intelligence for coronary heart disease.

$1.89
vs last close−0.03 (−1.56%)

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13F · 13D/G · Form 4

Institutions6.52%193.0K shares
17 holders · as of Jun 30, 2026
Insiders2.09%61.8K shares
2 holders · as of Oct 9, 2024
Other91.39%2.70M shares
remainder

2.96M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

13F · 13D/G · Form 4

HolderStakeSharesDate
Meeshanthini DoganInsiderdirector, officer: Chief Executive Officer
1.86%55,181filed Oct 8, 2024
Renaissance Technologies LLCInstitution
1.66%49,200as of Jun 30, 2026
BlackRock, Inc.Institution
1.17%34,708as of Jun 30, 2026
Geode Capital Management, LLCInstitution
0.89%26,233as of Jun 30, 2026
Vanguard Capital Management LLCInstitution
0.68%20,155as of Jun 30, 2026
Citadel Advisors LLCInstitution
0.64%19,071as of Jun 30, 2026
XTX Topco LtdInstitution
0.54%16,093as of Jun 30, 2026
Jane Street Group, LLCInstitution
0.40%11,933as of Jun 30, 2026
State Street CorpInstitution
0.34%10,099as of Jun 30, 2026
Timur DoganInsiderofficer: Chief Technology Officer
0.22%6,577filed Oct 9, 2024
Vanguard Fiduciary Trust CoInstitution
0.10%2,824as of Jun 30, 2026
Tower Research Capital LLC (TRC)Institution
0.06%1,809as of Jun 30, 2026
UBS Group AGInstitution
0.02%656as of Jun 30, 2026
Wolverine Asset Management LLCInstitution
0.00%104as of Jun 30, 2026
Morgan StanleyInstitution
0.00%100as of Jun 30, 2026
Advisor Group Holdings, Inc.Institution
0.00%16as of Jun 30, 2026
SHP Wealth ManagementInstitution
0.00%16as of Jun 30, 2026
Sbi Securities Co., Ltd.Institution
0.00%10as of Jun 30, 2026
Wells Fargo & Company/MNInstitution
0.00%2as of Jun 30, 2026
BlackRock, Inc.Strategic
—5.20% of class, as filed—filed Feb 2, 2024
Robert Philibert1Insiderdirector, officer: Chief Medical Officer
1.90%56,129filed Sep 10, 2024
Mana Capital LLC2Strategic10 percent owner
1.76%52,167filed Dec 2, 2021
Warren Hosseinion3Insiderdirector
0.13%3,868filed Nov 3, 2022
Stanley K. Lau4Insiderdirector
0.11%3,344filed Apr 8, 2024
James Intrater4Insiderdirector
0.08%2,387filed Apr 8, 2024
  1. Last filed Sep 10, 2024; leaving the company requires no filing. Not in the bar.
  2. Last filed Dec 2, 2021; leaving the company requires no filing. Not in the bar.
  3. Last filed Nov 3, 2022; leaving the company requires no filing. Not in the bar.
  4. Last filed Apr 8, 2024; leaving the company requires no filing. Not in the bar.

13F, as of Jun 30, 2026

17 holders · 193.0K shares · 4 new positions · 5 increased · 5 reduced · 3 closed

HolderShares% outstandingChg q/qFiled
Renaissance Technologies LLC49.2K1.66%+33.9KAug 13, 2026
BlackRock, Inc.34.7K1.17%0Aug 7, 2026
Geode Capital Management, LLC26.2K0.89%−5.9KAug 12, 2026
Vanguard Capital Management LLC20.2K0.68%0Aug 13, 2026
Citadel Advisors LLC19.1K0.64%+19.1KSep 2, 2026
XTX Topco Ltd16.1K0.54%+16.1KnewAug 14, 2026
Jane Street Group, LLC11.9K0.40%−69.4KAug 14, 2026
State Street Corp10.1K0.34%+10.1KnewAug 7, 2026

13D/G · 5% or more, as filed

No 13D/G filer at 5% or more on record.

Form 4

Latest trades

No open-market trades in the last 12 months.

House and Senate disclosures

Not reported.