[Form 4] SMITH MICRO SOFTWARE, INC. Insider Trading Activity

Rhea-AI Filing Summary

Insider transaction summary: Timothy C. Huffmyer, who serves as VP, COO, CFO and Treasurer of Smith Micro Software, Inc. (SMSI), reported a transaction dated 09/15/2025. The filing shows 256 shares of common stock were disposed of under code F (shares withheld to satisfy tax withholding) at an average vesting price of $0.70 per share. After the withholding, Mr. Huffmyer beneficially owns 179,875 shares directly. The form is signed by an attorney-in-fact on behalf of the reporting person.

Insights

Corporate Governance Expert

TL;DR: Routine tax-withholding sale by an insider; not a directional trading signal.

The reported transaction is a standard administrative withholding of 256 shares to cover income taxes tied to equity vesting. The reporting person holds a senior executive role combining VP, COO, CFO and Treasurer functions, and retains 179,875 shares after the transaction. This type of Form 4 reflects compensation settlement mechanics rather than an intentional disposition for liquidity or investment reallocation.

Securities Analyst

TL;DR: Small, non-material disposition; unlikely to affect valuation or signal material insider sentiment.

The amount disposed (256 shares) is immaterial relative to the remaining direct holdings reported at 179,875 shares. The transaction code 'F' and the explanatory note that shares were withheld at an average price of $0.70 indicate tax withholding on vested equity rather than an open-market sale. Investors typically view such filings as administrative.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Huffmyer Timothy C.

(Last) (First) (Middle)

5800 CORPORATE DRIVE

(Street)

PITTSBURGH PA 15237

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SMITH MICRO SOFTWARE, INC. [ SMSI ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, COO, CFO and Treasurer

3. Date of Earliest Transaction (Month/Day/Year)
09/15/2025

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common stock	09/15/2025		F		256	D	$0.7(1)	179,875	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Shares withheld, at an average vesting price of $0.70 per share, for the payment of income taxes.

	/s/ Jennifer M. Reinke as attorney-in-fact for Timothy C. Huffmyer	09/15/2025
	** 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 4 (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).
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