Cardiff Oncology, Inc. Initial Statement of Beneficial Ownership

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Sidhu Roger

Role Chief Medical Officer

Type	Security	Shares	Price	Value
holding	Employee Stock Option (right to buy)	--	--	--

Holdings After Transaction: Employee Stock Option (right to buy) — 600,000 contracts (Direct)

Footnotes (1)

1. F1. (1) 150,000 of the Options vest on June 16, 2026 and 12,500 vest monthly for 36 months beginning on July 16, 2026, provided the Optionee on the vesting date continues to provide services to the Company or an Affiliate.

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Accepted by SEC EDGAR 07/08/2025 - 04:05 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Sidhu Roger

(Last) (First) (Middle)

C/O CARDIFF ONCOLOGY, INC.

11055 FLINTKOTE AVENUE

(Street)

SAN DIEGO CA 92121

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
06/16/2025

3. Issuer Name and Ticker or Trading Symbol
Cardiff Oncology, Inc. [ CRDF ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Medical Officer

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (right to buy)	(1)	06/16/2035	Common Stock	600,000	$3.86	D

Explanation of Responses:

1. (1) 150,000 of the Options vest on June 16, 2026 and 12,500 vest monthly for 36 months beginning on July 16, 2026, provided the Optionee on the vesting date continues to provide services to the Company or an Affiliate.

	/s/ Roger Sidhu	07/08/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.