Smith Micro (NASDAQ: SMSI) CEO has 300 shares withheld for taxes, holds 36,379

Rhea-AI Filing Summary

SMITH MICRO SOFTWARE, INC. (SMSI) reported that President and CEO Timothy C. Huffmyer had 300 shares of common stock withheld on August 19, 2026 to pay income taxes, at an average vesting price of $2.87 per share. Following this tax-withholding disposition, he directly holds 36,379 shares, which reflect the company’s 1:5 reverse stock split effective at 11:59 p.m. ET on June 4, 2026.

Insider Trade Summary

Net Seller: 300 shares

Net Sell 1 txn

Insider Huffmyer Timothy C.

Role President and CEO

Type	Security	Shares	Price	Value
Tax Withholding	Common stock F1, F2	300	$2.87	$861.00

Holdings After Transaction: Common stock — 36,379 shares (Direct)

Footnotes (2)

1. F1. Shares withheld, at an average vesting price of $2.87 per share, for the payment of income taxes.
2. F2. Effective at 11:59pm ET on June 4, 2026, Smith Micro Software, Inc. effected a 1:5 reverse stock split. Shareholdings reported herein reflect the effects of the reverse stock split.

Key Figures

Shares withheld for taxes: 300 shares Average vesting price: $2.87 per share Shares held after transaction: 36,379 shares +1 more

4 metrics

Shares withheld for taxes 300 shares Common stock withheld on August 19, 2026 for payment of income taxes

Average vesting price $2.87 per share Price used for shares withheld for tax payment

Shares held after transaction 36,379 shares Directly held by Timothy C. Huffmyer after August 19, 2026 disposition

Reverse stock split ratio 1:5 Effective at 11:59 p.m. ET on June 4, 2026; holdings reflect split

Key Terms

reverse stock split, Form 4, Payment of tax liability by delivering or withholding securities

3 terms

reverse stock split financial

"Smith Micro Software, Inc. effected a 1:5 reverse stock split."

A reverse stock split reduces a company's number of outstanding shares while raising the price per share proportionally, so the total value of each investor's holding is unchanged; a 1-for-10 split turns 100 shares worth $1 each into 10 shares worth $10 each. Companies often do this to regain compliance with an exchange's minimum price rule or to attract investors who avoid very low-priced stocks.

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Payment of tax liability by delivering or withholding securities financial

"transaction_code_description": "Payment of tax liability by delivering or withholding securities"

FAQ

What insider transaction did SMSI report for Timothy C. Huffmyer?

SMSI reported that Timothy C. Huffmyer had 300 shares of common stock withheld on August 19, 2026 for the payment of income taxes, at an average vesting price of $2.87 per share.

How many SMSI shares were involved in the August 19, 2026 Form 4 transaction?

The Form 4 shows a disposition of 300 shares of SMITH MICRO SOFTWARE, INC. common stock, withheld to cover income tax obligations associated with vesting equity awards.

What price per share was used for the SMSI tax-withholding shares?

The shares were withheld at an average vesting price of $2.87 per share, according to the footnote describing the tax-withholding transaction.

How many SMSI shares does Timothy C. Huffmyer hold after this transaction?

After the August 19, 2026 tax-withholding disposition, Timothy C. Huffmyer directly holds 36,379 shares of SMITH MICRO SOFTWARE, INC. common stock.

Was the SMSI Form 4 transaction a market sale or tax withholding?

The Form 4 describes the transaction as a payment of tax liability by delivering or withholding securities, meaning it was a tax-withholding disposition rather than an open-market sale.

How does the reverse stock split affect the SMSI share figures in this Form 4?

SMITH MICRO SOFTWARE, INC. effected a 1:5 reverse stock split effective at 11:59 p.m. ET on June 4, 2026, and the shareholdings reported, including the 36,379 shares held after the transaction, already reflect this split.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/20/2026 - 06:36 PM Accepted by SEC EDGAR 08/20/2026 - 06:35 PM Learn about SEC filing dates

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 PENNSYLVANIA 15237

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/19/2026

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

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

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

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	08/19/2026		F		300	D	$2.87(1)	36,379(2)	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 $2.87 per share, for the payment of income taxes.

2. Effective at 11:59pm ET on June 4, 2026, Smith Micro Software, Inc. effected a 1:5 reverse stock split. Shareholdings reported herein reflect the effects of the reverse stock split.

	/s/ Jennifer M. Reinke as attorney-in-fact for Timothy C. Huffmyer	08/20/2026
	** 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.
* Form 4: SEC 1474 (03-26)