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Who owns Cardio Diagnostics Holdings (CDIO) stock

18 funds reported Cardio Diagnostics Holdings (CDIO) shares in their latest 13F filings, worth $488K in all. The largest holder is Renaissance Technologies LLC ($108K). Last quarter 5 funds added to their stakes and 7 cut them.

Largest holders of CDIO (13F)Largest holders of CDIO (13F)Renaissance Technologies LLC$108KBlackRock$76KVanguard Group$65KGeode Capital Management, LLC$57KVanguard Capital Management LLC$44KCitadel Advisors LLC$42KXTX Topco$35KJane Street Group, LLC$26KState Street$22KVanguard Fiduciary Trust$6K

Largest holders (13F)

FundSharesValueChangeQuarter
Renaissance Technologies LLC49,200$108Kincrease2026-06-30
BlackRock34,708$76Kunchanged2026-06-30
Vanguard Group24,124$65Kunchanged2025-12-31
Geode Capital Management, LLC26,233$57Kdecrease2026-06-30
Vanguard Capital Management LLC20,155$44Kunchanged2026-06-30
Citadel Advisors LLC19,071$42Knew2026-06-30
XTX Topco16,093$35Knew2026-06-30
Jane Street Group, LLC11,933$26Kdecrease2026-06-30
State Street10,099$22Knew2026-06-30
Vanguard Fiduciary Trust2,824$6Kdecrease2026-06-30
Tower Research Capital LLC1,809$4Kdecrease2026-06-30
UBS Group AG656$1Kdecrease2026-06-30
Wolverine Asset Management LLC104$228unchanged2026-06-30
Morgan Stanley100$219unchanged2026-06-30
Osaic Holdings16$35unchanged2026-06-30

Cardio Diagnostics Holdings' latest quarter

Cardio Diagnostics Holdings, Q3 2026: revenue $4K (+26% year over year), net loss $1.7M, operating cash flow −$1.5M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most CDIO stock?

By the latest 13F filings: Renaissance Technologies LLC ($108K); BlackRock ($76K); Vanguard Group ($65K); Geode Capital Management, LLC ($57K); Vanguard Capital Management LLC ($44K).

What is the short interest in CDIO?

2,971 shares were sold short at the 2026-10-15 settlement, 193.58% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.