Item 5. Market for Registrant’s Common Equity
Item
5. Market for Registrant’s Common Equity, Related Shareholder Matters and Issuer Purchases
of Equity Securities
Market Information
Our publicly traded Common Stock and warrants are
currently listed on the Nasdaq Capital Market under the symbols “CDIO” and “CDIOW,” respectively.
Holders
As of March 13, 2026, there were 39 holders of
record of our common stock and six holders of record of our Public Warrants and Sponsor Warrants. In addition, we have approximately
74 holders of private placement warrants, the majority of which have been registered for resale on a registration statement on Form S-1
that the SEC declared effective on January 24, 2023.
The number of record holders of our Common Stock
and Public Warrants was determined from the records of our transfer agent and does not include beneficial owners of any of our securities
whose securities are held in the names of various security brokers, dealers, and registered clearing agencies.
The transfer agent for our common stock and warrant
agent for our warrants is Continental Stock Transfer & Trust Company.
Dividends
We have not declared or paid any cash dividends
on our Common Stock. To date we have utilized all available cash to finance our operations. Payment of cash dividends in the future will
be at the discretion of our Board of Directors and will depend upon our earnings levels, capital requirements, any restrictive loan covenants
and other factors the Board considers relevant.
Warrants
As of March 13, 2026, there were 284,292 (8,528,766
prior to the Reverse Stock Split) warrants outstanding for the purchase of Company Common Stock. Refer to Note 9 to the consolidated financial
statements included in this Annual Report on Form 10-K for additional information relating to outstanding warrants.
Securities Authorized for Issuance Under Equity
Compensation Plans
See Part III, Item 11, “Executive Compensation,”
for information about securities authorized for issuance under the Company’s equity compensation plan.
Sales of Unregistered Securities
We did not sell any equity securities that were
not registered under the Securities Act during the fiscal year ended December 31, 2025 that were not otherwise disclosed in our Quarterly
Reports on Form 10-Q or our Current Reports on Form 8-K.
Issuer Purchases of Equity Securities
We do not currently have any plans under which the
Company is able to repurchase shares of our equity securities from our stockholders.
Item
6. [Reserved]
58
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