Smith Micro Software (SMSI) insider reports tax withholding of vested shares

Rhea-AI Filing Summary

Smith Micro Software insider reports routine tax-related share withholding. A company officer serving as VP, COO, CFO and Treasurer reported a Form 4 transaction dated 12/17/2025. The filing shows 254 shares of common stock withheld at an average vesting price of $0.6225 per share, identified in the explanation as shares withheld for the payment of income taxes upon vesting. After this transaction, the officer beneficially owns 225,906 shares of Smith Micro Software common stock directly.

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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)
12/17/2025

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	12/17/2025		F		254	D	$0.6225(1)	225,906	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 $0.6225 per share, for the payment of income taxes.

	/s/ Jennifer M. Reinke as attorney-in-fact for Timothy C. Huffmyer	12/17/2025
	** 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).
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.

FAQ

What insider transaction did Smith Micro Software (SMSI) report on this Form 4?

The Form 4 reports that a Smith Micro Software officer had 254 common shares withheld on 12/17/2025, as part of a routine tax withholding related to vested shares.

At what price were the Smith Micro Software (SMSI) shares withheld for taxes?

The filing states that the 254 shares were withheld at an average vesting price of $0.6225 per share for the payment of income taxes.

How many Smith Micro Software (SMSI) shares does the insider own after this transaction?

Following the reported tax-withholding transaction, the officer beneficially owns 225,906 shares of Smith Micro Software common stock, held directly.

What role does the reporting person hold at Smith Micro Software (SMSI)?

The reporting person is listed as an officer of Smith Micro Software, with the titles VP, COO, CFO and Treasurer.

Was this Smith Micro Software (SMSI) Form 4 filed by more than one reporting person?

No. The filing indicates that it is a Form filed by one reporting person, not a joint or group filing.

Does this Smith Micro Software (SMSI) Form 4 involve derivative securities?

No derivative securities transactions are reported. Table II for derivative securities is present but contains no entries for acquired or disposed instruments.