[Form 3] Cardiff Oncology, Inc. Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Grid Dynamics Holdings, Inc. (NASDAQ: GDYN) filed a Form 144 indicating that insider Yury Gryzlov intends to sell 2,000 common shares through Morgan Stanley Smith Barney LLC. The shares are valued at $24,660 and are expected to be sold on 07/08/2025. Gryzlov acquired the shares as restricted stock on 03/13/2021. The company has 84,547,653 shares outstanding, so the planned sale represents only about 0.002 % of the float. During the past three months, the same insider sold an additional 4,737 shares for $59,151.34. No other financial or operational data is provided in this notice.

Insights

Securities Analyst

TL;DR: Minor Form 144; 2k-share sale is immaterial and unlikely to affect GDYN’s price.

The filing covers a proposed disposition of 2,000 shares—roughly 0.002 % of outstanding stock—with an aggregate value of just $24.7 k. Even when combined with the 4,737 shares sold over the last quarter, the total insider disposals remain negligible versus GDYN’s 84.5 M share base. Volume of this size is routine and does not signal meaningful insider sentiment or liquidity pressure. I therefore classify the market impact as neutral.

Corporate Governance Specialist

TL;DR: Routine insider trade disclosure; governance posture unchanged.

Form 144 demonstrates compliance with Rule 144’s disclosure requirements. The small transaction, executed via a major broker, suggests standard portfolio diversification rather than strategic exit. No relationship to undisclosed material information is asserted, and the representation section confirms no known adverse data. Governance risk remains low.

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
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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.
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FAQ

How many GDYN shares are proposed for sale in the Form 144 filing?

The filing covers 2,000 common shares.

What is the dollar value of the shares to be sold by the insider?

The aggregate market value is $24,660.

When is the planned sale date for these GDYN shares?

The approximate sale date is July 8, 2025.

Who is the insider selling the shares of Grid Dynamics (GDYN)?

The seller named in the filing is Yury Gryzlov.

How many GDYN shares has this insider sold in the past three months?

A total of 4,737 shares were sold for $59,151.34 in the last three months.

Which brokerage firm is executing the proposed GDYN share sale?

The broker listed is Morgan Stanley Smith Barney LLC.