Cardio Diagnostics Holdings Inc.

CDIO • NASDAQ

Cardio Diagnostics Holdings Inc. is a biotechnology company in the healthcare sector on NASDAQ, led by Meeshanthini V. Dogan, with a market cap of $6.4M. As of Q3 2025, 7% of shares are held by 13 institutional investors, with BlackRock, Inc. as the largest holder at 2.02%.

Chief Executive OfficerMeeshanthini V. Dogan

Market Cap$6.4M

Biotechnology

Healthcare

Employees9.0

Websitecardiodiagnosticsinc.com

Country

United States of America

Overview

Overview of institutional ownership in CDIO as of Q3 2025 with a market cap of $7.1M

All Institutions

Institutions: 13
Value Held: $462.2K
Shares Held: 115.0K
Avg Position: $35.6K
Median Position: $3.2K

Hedge Funds

Hedge Funds: 2
Value Held: $79.1K
Shares Held: 19.6K
Avg Position: $39.5K
Median Position: $39.5K

Ownership Breakdown

Institutional (non-HF)

5.42%

$383.1K

Hedge Funds

1.12%

$79.1K

Retail & Other

93.46%

$6.6M

Based on market cap of $7.1M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in CDIO as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$142.6K 0.00% of portfolio	2.02% 35.6K shares	Q4 2023 Held for 1y 11m	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$97.2K 0.00% of portfolio	1.37% 24.1K shares	Q1 2023 Held for 2y 8m	$6.69T
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	Kenneth Cordele Griffin CEO	$78.7K 0.00% of portfolio	1.11% 19.5K shares	Q3 2025 Held for 2 months	$122.08B
D DRW Securities, LLC Institution	-	$72.8K 0.00% of portfolio	1.03% 18.2K shares	Q3 2025 Held for 2 months	$1.9B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$60.8K 0.00% of portfolio	0.86% 15.1K shares	Q1 2023 Held for 2y 8m	$1.57T
PNC FINANCIAL SERVICES GROUP, INC. Institution	William S. Demchak CEO	$5.4K 0.00% of portfolio	0.08% 1.4K shares	Q1 2023 Held for 2y 8m	$164.83B
T Tower Research Capital LLC Institution	-	$3.2K 0.00% of portfolio	0.04% 788.0 shares	Q4 2022 Held for 2y 11m	$3.6B
MORGAN STANLEY RIA/Wealth	Jed Finn CEO	$493.0 0.00% of portfolio	0.01% 123.0 shares	Q3 2024 Held for 1y 2m	$1.65T
WOLVERINE ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	Christopher Lazarus Gust CEO	$417.0 0.00% of portfolio	0.01% 104.0 shares	Q4 2022 Held for 2y 11m	$1.5B
A Advisor Group Holdings, Inc. Institution	-	$356.0 0.00% of portfolio	0.01% 89.0 shares	Q4 2023 Held for 1y 11m	$71.0B

Net Capital Flow

Institutional buying and selling activity for CDIO in Q3 2025

Traded: +$130.7K
Buyers: 6
Sellers: 6
Total Bought: +$207.5K
Total Sold: −$76.8K
Avg Position: $25.7K

Biggest Buyers

Institution	Net Bought	Current Position
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$78.7K +19.5K shares	$78.7K 19.5K shares
D DRW Securities, LLC Institution	+$72.8K +18.2K shares	$72.8K 18.2K shares
VANGUARD GROUP INC Institution	+$46.1K +11.4K shares	$97.2K 24.1K shares
GEODE CAPITAL MANAGEMENT LLC ETF Provider	+$7.0K +1.7K shares	$60.8K 15.1K shares
T Tower Research Capital LLC Institution	+$2.8K +688.0 shares	$3.2K 788.0 shares
MORGAN STANLEY RIA/Wealth	+$92.2 +23.0 shares	$493.0 123.0 shares

Biggest Sellers

Institution	Net Sold	Current Position
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	−$47.0K −13.1K shares	Sold Off 0 shares
R ROYAL BANK OF CANADA Institution	−$27.0K −7.5K shares	Sold Off 0 shares
UBS Group AG Institution	−$2.5K −697.0 shares	Sold Off 0 shares
S SBI Securities Co., Ltd. Institution	−$172.0 −43.0 shares	$108.0 27.0 shares
A Advisor Group Holdings, Inc. Institution	−$72.0 −18.0 shares	$356.0 89.0 shares
FMR LLC Institution	−$11.0 −3.0 shares	Sold Off 0 shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited CDIO in Q3 2025

New Positions: 2
New Value: $151.5K
Exited Positions: 4
Exited Value: $76.5K

New Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$78.7K 19.5K shares
D DRW Securities, LLC Institution	$72.8K 18.2K shares

Exited Positions

Institution	Previous Position
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$47.0K 13.1K shares
R ROYAL BANK OF CANADA Institution	$27.0K 7.5K shares
UBS Group AG Institution	$2.5K 697.0 shares
FMR LLC Institution	$11.0 3.0 shares

Options Activity

Institutions with the largest Call and Put options positions in CDIO as of Q3 2025

Call Positions: 0
Call Value: -
Put Positions: 0
Put Value: -

Call Positions

Institution	Position Value
No call positions found

Put Positions

Institution	Position Value
No put positions found

Most Committed Institutions

Institutions with CDIO as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
D DRW Securities, LLC Institution	-	0.00% $72.8K	1.03% 18.2K shares	Q3 2025 Held for 2 months	$1.9B
T Tower Research Capital LLC Institution	-	0.00% $3.2K	0.04% 788.0 shares	Q4 2022 Held for 2y 11m	$3.6B
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	Kenneth Cordele Griffin CEO	0.00% $78.7K	1.11% 19.5K shares	Q3 2025 Held for 2 months	$122.08B
WOLVERINE ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	Christopher Lazarus Gust CEO	0.00% $417.0	0.01% 104.0 shares	Q4 2022 Held for 2y 11m	$1.5B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	0.00% $60.8K	0.86% 15.1K shares	Q1 2023 Held for 2y 8m	$1.57T
PNC FINANCIAL SERVICES GROUP, INC. Institution	William S. Demchak CEO	0.00% $5.4K	0.08% 1.4K shares	Q1 2023 Held for 2y 8m	$164.83B
S SBI Securities Co., Ltd. Institution	-	0.00% $108.0	0.00% 27.0 shares	Q4 2024 Held for 11 months	$3.9B
B BlackRock, Inc. Institution	-	0.00% $142.6K	2.02% 35.6K shares	Q4 2023 Held for 1y 11m	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	0.00% $97.2K	1.37% 24.1K shares	Q1 2023 Held for 2y 8m	$6.69T
A Advisor Group Holdings, Inc. Institution	-	0.00% $356.0	0.01% 89.0 shares	Q4 2023 Held for 1y 11m	$71.0B

Hedge Fund Spotlight

Discover hedge funds investing in CDIO

WOLVERINE ASSET MANAGEMENT LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerChristopher Lazarus Gust

Portfolio Value: $1.5B
Positions: 859
Last Reported: Q3 2025

Sector Allocation

Position in Cardio Diagnostics Holdings Inc.

Market Value: $417.0
Shares Held: 104.0
Portfolio Weight: 0.00%
Owned Since: 2022-Q4

Top Holding	Sector	Market Value	Weight
1 BTSGU BrightSpring Health Services BTSGU	Medical - Healthcare Information Services Healthcare	$56.2M	3.82%
2 iShares Bitcoin Trust IBIT	ETF ETF	$36.0M	2.45%
3 AAM AA Mission Acquisition Corp. AAM	Unknown Unknown	$26.9M	1.83%

View full profile

Cardio Diagnostics Holdings Inc.

Overview

All Institutions

Hedge Funds

Ownership Breakdown

Biggest Investors

Net Capital Flow

Biggest Buyers

Biggest Sellers

Entry and Exit Activity

New Positions

Exited Positions

Options Activity

Call Positions

Put Positions

Most Committed Institutions

Hedge Fund Spotlight

Position in Cardio Diagnostics Holdings Inc.

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