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CDIO · Cardio Diagnostics Holdings, Inc.
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CDIO Cardio Diagnostics (CDIO) Insider Trading, Ownership & Congress Trades

Pharma & Biotech · In vitro & in vivo diagnostic substances · CIK 0001870144
Quote by TradingView
SEC filings
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
5
13F, latest reported quarter

Cardio Diagnostics insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

No insider purchases or sales are on record for Cardio Diagnostics Holdings, Inc. in the period covered. Source: SEC Form 4 filings, as of 2026-10-28.

Insider
Filed
Shares
Value
Since filing
Philibert Robert
Chief Medical Officer
BUY
2024-09-10 SECtraded 2024-09-06
26,615
$7.7K
-80.3%
Context
  • 3 earlier Form 4 trades (code P or S) here by this insider (3 buys), the last on Aug 28, 2023.
  • +291.4% median (+291.4% mean) 90-day return after 2 previous buys.
  • The trade is 1.6% of the 1,676,407 shares held after it.
  • 2 other insiders bought within 30 days.
  • 5 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Medical Officer Philibert Robert bought about $7.7K of CDIO on Sep 6, 2024, the largest insider purchase at the company since 2023; 2 other insiders bought within 30 days and 5 funds added in the latest 13F quarter.
Philibert Robert
Chief Medical Officer
BUY
2024-09-10 SECtraded 2024-09-06
7,460
$2.1K
-80.3%
Context
  • 3 earlier Form 4 trades (code P or S) here by this insider (3 buys), the last on Aug 28, 2023.
  • +291.4% median (+291.4% mean) 90-day return after 2 previous buys.
  • The trade is 0.4% of the 1,683,867 shares held after it.
  • 2 other insiders bought within 30 days.
  • 5 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Medical Officer Philibert Robert bought about $2.1K of CDIO on Sep 6, 2024, the largest insider purchase at the company since 2023; 2 other insiders bought within 30 days and 5 funds added in the latest 13F quarter.
Dogan Timur
Chief Technology Officer
BUY
2024-10-09 SECtraded 2024-09-06
68,965
$20.0K
-71.9%
Context
  • 2 earlier Form 4 trades (code P or S) here by this insider (2 buys), the last on Aug 31, 2023.
  • +303.1% median (+303.1% mean) 90-day return after 2 previous buys.
  • The trade is 35.0% of the 197,310 shares held after it.
  • 2 other insiders bought within 30 days.
  • 5 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Technology Officer Dogan Timur bought about $20.0K of CDIO on Sep 6, 2024, the largest insider purchase at the company on our record; 2 other insiders bought within 30 days and 5 funds added in the latest 13F quarter.
Dogan Meeshanthini
Chief Executive Officer
BUY
2024-10-08 SECtraded 2024-09-06
68,965
$20.0K
-72.7%
Context
  • 2 earlier Form 4 trades (code P or S) here by this insider (2 buys), the last on Aug 31, 2023.
  • +303.1% median (+303.1% mean) 90-day return after 2 previous buys.
  • The trade is 4.2% of the 1,655,429 shares held after it.
  • 2 other insiders bought within 30 days.
  • 5 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Executive Officer Dogan Meeshanthini bought about $20.0K of CDIO on Sep 6, 2024, the largest insider purchase at the company on our record; 2 other insiders bought within 30 days and 5 funds added in the latest 13F quarter.
Dogan Meeshanthini
Chief Executive Officer
BUY
2023-09-08 SECtraded 2023-08-31
16,481
$9.1K
-86.3%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 buy), the last on Aug 25, 2023.
  • The trade is 12.8% of the 128,345 shares held after it.
  • 2 other insiders bought within 30 days.
  • 5 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Executive Officer Dogan Meeshanthini bought about $9.1K of CDIO on Aug 31, 2023; 2 other insiders bought within 30 days and 5 funds added in the latest 13F quarter.
11 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
See all insider buying · insider selling
Showing the latest few. to see 6 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
no insider buys or sells on file
Congress
no House purchase disclosed in the last 12 months
Funds
5 funds bought in last quarter
below 95% of Pharma & Biotech
Revenue
-57.5% year over year
below 81% of Pharma & Biotech
Margin
no margin: no revenue reported
Buybacks
no share repurchases reported
Short interest
<0.1% of the float short (float per yahoo 2026-10-26) · 1.0 days to cover · settled 2026-09-30
below 92% of Pharma & Biotech
What changed in the last 30 days
Nothing new filed in the last 30 days

Watch CDIO

A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.

The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
-56.6%12M
-73%-27%+19%+65%2025-102025-122026-022026-042026-062026-082026-10
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns CDIO: institutional holders (13F)

13F holdings, latest reported quarter
RENAISSANCE TECHNOLOGIES LLC
49,200 sh
$107.7K
BlackRock, Inc.
34,708 sh
$76.0K
GEODE CAPITAL MANAGEMENT, LLC
26,233 sh
$57.4K
VANGUARD CAPITAL MANAGEMENT LLC
20,155 sh
$44.1K
CITADEL ADVISORS LLC
19,071 sh
$41.8K

Congress trades in CDIO

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

CDIO planned insider sales (Form 144)

No planned-sale notices
No insider has filed to sell. Watch this after a run-up.

CDIO mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
Fidelity Extended Market Index Fund
$31.3K position · as of 2026-05-31
0.0%
VANGUARD EXTENDED MARKET INDEX FUND
$44.1K position · as of 2026-06-30
0.0%
Fidelity Series Total Market Index Fund
$5.2K position · as of 2026-05-31
0.0%
Fidelity Total Market Index Fund
$4.1K position · as of 2026-05-31
0.0%
Fidelity Nasdaq Composite Index Fund
$728 position · as of 2026-05-31
0.0%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
The complete filing record, in one place.
The record shows 5 funds added last quarter. Each figure is a federal filing, dated the day it went public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector by SEC SIC code
UTHRCPIXMRNAREGNLLYALNYMDGLCITRDNAVRTXNUVLTWST

CDIO financials

Revenue growth
-57.5%
XBRL, annual
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$14.4K
four quarters, 2025-07-01 to 2026-06-30
Net margin, TTM
n/a
revenue under $1M, the ratio says nothing
Free cash flow, TTM
-$5.8M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Debt to equity
n/a
no debt line filed
Cash flow to debt
n/a
no debt line filed
Return on equity
-75.4%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets
-70.6%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on invested capital
n/a
pre-tax loss, no effective tax rate to apply
Return on capital employed
-73.4%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Enterprise value
n/a
no debt line filed
FCF yield
-114.4%
TTM free cash flow over market value at close 2026-10-26
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2025-122024-122023-122022-12
Revenue$14.8K$34.9K$17.1K$950
Operating income-$6.5M-$8.4M-$7.2M-$4.5M
Net income-$6.5M-$8.4M-$8.4M-$4.7M
EPS (diluted)-3.71-9.35-0.66-1.51
Operating cash flow-$5.7M-$5.0M-$5.7M-$5.1M
Cash$0$0$0$0
SEC XBRL, fiscal years, as known on 2026-10-28

CDIO Stock Sonar score 4/7 axes

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CDIO ranks highest on risk and compliance (82nd percentile) and profitability (37th), and lowest on institutional and government (5th), among Pharma & Biotech peers.

Profitability
37
Inputs
  • Return on equity-75.4% · 41 pct, sector of 545
  • Return on assets-70.6% · 34 pct, sector of 691
  • Return on invested capitalpre-tax loss, no effective tax rate to apply
  • Return on capital employed-73.4% · 35 pct, sector of 576
Growth
19
Inputs
  • Revenue growth, YoY-57.5% · 19 pct, sector of 505
  • Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Institutional and government
5
Inputs
  • Funds adding, latest quarter5 · 5 pct, sector of 698
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quartersno lobbying filings in the last four quarters
Risk and compliance
82
Inputs
  • Short interest, % of float+0.0% · 94 pct, sector of 813
  • Recalls per $1B revenue, 3yrevenue under $50M or not filed, so a count cannot be scaled to size
  • EPA cases per $1B revenue, 5yrevenue under $50M or not filed, so a count cannot be scaled to size
  • New text in Risk Factors, latest 10-K+7.2% · 70 pct, sector of 511
3 not measured: Financial health, Insider conviction, US patents
  • Financial health needs 1 of 2 inputs, 0 present: no debt line filed
  • Insider conviction needs 1 of 2 inputs, 0 present: no Form 4 purchase or sale (code P or S) in 180 days; no insider trades in 180 days
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

4 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

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