SMITH MICRO SOFTWARE, INC. (SMSI)

Data as of Sep 15, 2026, from SEC Form 4 filings.

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Timothy C. Huffmyer - Officer
Tax withholding / forfeiture$290
Sep 15, 2026
William W. Smith Jr. - Officer
Tax withholding / forfeiture

About SMITH MICRO SOFTWARE, INC. (SMSI)

SMITH MICRO SOFTWARE, INC. files with the SEC under CIK 0000948708 and is classified as prepackaged software. We track it alongside the rest of the Information Technology sector. It filed a registration statement with the SEC on 4 December 2025 and has not yet priced an offering.

Sector: Information Technology

SEC filings for SMSI on EDGAR

SMSI Form 4 activity by transaction type, last 90 days

Form 4 transaction type	Transactions	Shares	Total value
Tax withholding / forfeiture	5	1,821

Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.

SMSI insider transactions (Form 4)

55 Form 4 filings on record, the earliest from Oct 3, 2024, newest first. Filing history page 1 of 2.

Traded	Insider	Transaction	Security	Shares	Price	Value
Sep 15, 2026	Timothy C. Huffmyer - Officer	Tax withholding / forfeiture	Common stock	100	$2.90^{footnote F1}	$290
Footnote F1 (price): Shares withheld, at an average vesting price of $2.90 per share, for the payment of income taxes.
Sep 15, 2026	William W. Smith Jr. - Officer	Tax withholding / forfeiture	Common stock	456	$2.90^{footnote F1}	$1K
Footnote F1 (price): Shares withheld, at an average vesting price of $2.90 per share, for the payment of income taxes.
Aug 19, 2026	Bethany M. Braund - Officer	Tax withholding / forfeiture	Common stock	2	$2.86^{footnote F1}	$6
Footnote F1 (price): Shares withheld, at an average vesting price of $2.86 per share, for the payment of income taxes.
Aug 19, 2026	Timothy C. Huffmyer - Officer	Tax withholding / forfeiture	Common stock	300	$2.87^{footnote F1}	$861
Footnote F1 (price): Shares withheld, at an average vesting price of $2.87 per share, for the payment of income taxes.
Aug 19, 2026	William W. Smith Jr. - Officer	Tax withholding / forfeiture	Common stock	963	$2.87^{footnote F1}	$3K
Footnote F1 (price): Shares withheld, at an average vesting price of $2.87 per share, for the payment of income taxes.
May 14, 2026	William W. Smith Jr. - Officer	Tax withholding / forfeiture	Common stock	1,618	$0.87^{footnote F1}	$1K
Footnote F1 (price): Shares withheld, at an average vesting price of $0.8685 per share, for the payment of income taxes.
May 14, 2026	Timothy C. Huffmyer - Officer	Tax withholding / forfeiture	Common stock	588	$0.87^{footnote F1}	$511
Footnote F1 (price): Shares withheld, at an average vesting price of $0.8685 per share, for the payment of income taxes.
May 14, 2026	Bethany M. Braund - Officer	Tax withholding / forfeiture	Common stock	1,850	$0.87^{footnote F1}	$2K
Footnote F1 (price): Shares withheld, at an average vesting price of $0.8685 per share, for the payment of income taxes.
Apr 27, 2026	William W. Smith Jr. - Officer	Tax withholding / forfeiture	Common stock	1,618	$0.70^{footnote F1}	$1K
Footnote F1 (price): Shares withheld, at an average vesting price of $0.70 per share, for the payment of income taxes.
Apr 27, 2026	Bethany M. Braund - Officer	Tax withholding / forfeiture	Common stock	6,761	$0.72^{footnote F1}	$5K
Footnote F1 (price): Shares withheld, at an average vesting price of $0.72 per share, for the payment of income taxes.
Apr 27, 2026	Timothy C. Huffmyer - Officer	Tax withholding / forfeiture	Common stock	588	$0.70^{footnote F1}	$412
Footnote F1 (price): Shares withheld, at an average vesting price of $0.70 per share, for the payment of income taxes.
Mar 31, 2026	Bethany M. Braund - Officer	Grant or award	Common stock	20,000^{footnote F1}	$0.00	-
Footnote F1 (shares): Unrestricted stock award pursuant to the Smith Micro Software, Inc. Amended and Restated Omnibus Equity Incentive Plan
Mar 13, 2026	William W. Smith Jr. - Officer	Tax withholding / forfeiture	Common stock	4,943	$0.85^{footnote F1}	$4K
Footnote F1 (price): Shares withheld, at an average vesting price of $0.846 per share, for the payment of income taxes.
Mar 13, 2026	Timothy C. Huffmyer - Officer	Tax withholding / forfeiture	Common stock	1,788	$0.85^{footnote F1}	$2K
Footnote F1 (price): Shares withheld, at an average vesting price of $0.846 per share, for the payment of income taxes.
Mar 9, 2026	Chetan Sharma - Director	Grant or award	Stock option (right to buy)	12,500	$0.00	-
Mar 9, 2026	Gregory J. Szabo - Director	Grant or award	Common stock	12,500^{footnote F1}	$0.00	-
Footnote F1 (shares): Unrestricted stock award pursuant to the Company's Amended and Restated Omnibus Equity Incentive Plan.
Mar 9, 2026	Asha Keddy - Director	Grant or award	Common stock	12,500^{footnote F1}	$0.00	-
Footnote F1 (shares): Unrestricted stock award pursuant to the Company's Amended and Restated Omnibus Equity Incentive Plan.
Mar 9, 2026	Samuel Gulko - Director	Grant or award	Common stock	12,500^{footnote F1}	$0.00	-
Footnote F1 (shares): Unrestricted stock award pursuant to the Company's Amended and Restated Omnibus Equity Incentive Plan.
Mar 9, 2026	Steven Lawrence Elfman - Director	Grant or award	Common stock	12,500^{footnote F1}	$0.00	-
Footnote F1 (shares): Unrestricted stock award pursuant to the Company's Amended and Restated Omnibus Equity Incentive Plan.
Mar 9, 2026	Thomas G. Campbell - Director	Grant or award	Common stock	12,500^{footnote F1}	$0.00	-
Footnote F1 (shares): Unrestricted stock award pursuant to the Company's Amended and Restated Omnibus Equity Incentive Plan.
Mar 9, 2026	Andrew Arno - Director	Grant or award	Common Stock	12,500^{footnote F1}	$0.00	-
Footnote F1 (shares): Unrestricted stock award granted pursuant to the Company's Amended and Restated Omnibus Equity Incentive Plan.
Mar 10, 2026	William W. Smith Jr. - Officer	Grant or award	Common stock purchase warrant	8,818,254	-^{footnote F1}	-
Mar 10, 2026	William W. Smith Jr. - Officer	Grant or award	Secured convertible note	0	-^{footnote F1}	-^{footnote F2}
Footnote F1 (price): Pursuant to a Securities Purchase Agreement, dated March 4, 2026, between Smith Micro Software, Inc. and the Buyer parties thereto, Smith Living Trust agreed to purchase a secured convertible note together with a warrant for an aggregate purchase price of $4,585,491.93. The… Full note on SEC EDGAR Footnote F2 (value): Original principal amount of the secured convertible note (in dollars).
Mar 6, 2026	Timothy C. Huffmyer - Officer	Grant or award	Common stock purchase warrant	174,944	-^{footnote F1}	-
Mar 6, 2026	Timothy C. Huffmyer - Officer	Grant or award	Secured convertible note	0	-^{footnote F1}	-^{footnote F3}
Footnote F1 (price): Pursuant to a Securities Purchase Agreement, dated March 4, 2026, between Smith Micro Software, Inc. and the Buyer parties thereto, the Reporting Person agreed to purchase a secured convertible note together with a warrant for an aggregate purchase price of $90,970.45. The… Full note on SEC EDGAR Footnote F3 (value): Original principal amount of the secured convertible note (in dollars).
Mar 4, 2026	Timothy C. Huffmyer - Officer	Derivative	Common stock	5,261^{footnote F1}	$0.00	-
Footnote F1 (shares): Shares of restricted stock forfeited in accordance with the terms of grant.
Mar 4, 2026	William W. Smith Jr. - Officer	Derivative	Common stock	12,626^{footnote F2}	$0.00	-
Feb 27, 2026	William W. Smith Jr. - Officer	Tax withholding / forfeiture	Common stock	43,366	$0.52^{footnote F1}	$23K
Footnote F1 (price): Shares withheld, at an average vesting price of $0.523 per share, for the payment of income taxes. Footnote F2 (shares): Shares of restricted stock forfeited in accordance with the terms of grant.
Feb 27, 2026	Timothy C. Huffmyer - Officer	Tax withholding / forfeiture	Common stock	27,010	$0.51^{footnote F1}	$14K
Footnote F1 (price): Shares withheld, at an average vesting price of $0.512 per share, for the payment of income taxes.
Feb 21, 2026	Timothy C. Huffmyer - Officer	Derivative	Common stock	7,280^{footnote F1}	$0.00	-
Footnote F1 (shares): Shares of restricted stock forfeited in accordance with the terms of grant.
Feb 21, 2026	William W. Smith Jr. - Officer	Derivative	Common stock	9,706^{footnote F1}	$0.00	-
Footnote F1 (shares): Shares of restricted stock forfeited in accordance with the terms of grant.
Feb 3, 2026	William W. Smith Jr. - Officer	Grant or award	Common stock purchase warrant	1,480,165	-^{footnote F1}	-
Footnote F1 (price): The common stock purchase warrant was purchased from the issuer by Smith Living Trust (for which William W. Smith, Jr. serves as co-trustee) together with a promissory note in exchange for aggregate consideration of approximately $1,000,000.
Nov 12, 2025	Timothy C. Huffmyer - Officer	Tax withholding / forfeiture	Common Stock	19,143	$0.68^{footnote F3}	$13K
Nov 11, 2025	Timothy C. Huffmyer - Officer	Tax withholding / forfeiture	Common Stock	294	$0.78^{footnote F1}	$228
Nov 11, 2025	Timothy C. Huffmyer - Officer	Derivative	Common Stock	9,676^{footnote F2}	$0.00	-
Footnote F1 (price): Shares withheld, at an average vesting price of $0.7752 per share, for the payment of income taxes. Footnote F2 (shares): Shares of restricted stock forfeited in accordance with the terms of grant. Footnote F3 (price): Shares withheld, at an average vesting price of $0.6845 per share, for the payment of income taxes.

Recent SMSI Form 8-K filings

Read SMSI company news

Sep 18, 2026Item 5.02, 7.01, 9.01

Read the filing on SEC EDGAR

Aug 13, 2026Item 2.02, 7.01, 9.01

Read the filing on SEC EDGAR

Jun 23, 2026Item 8.01

Read the filing on SEC EDGAR

Jun 12, 2026Item 1.01, 3.02, 9.01

SMSI insider trading FAQ

What is the latest insider trade for SMSI?

SMITH MICRO SOFTWARE, INC. (SMSI) had 5 insider filings in the last 90 days, with the most recent on 15 September 2026. The full record for SMSI runs to 55 Form 4 filings, the earliest from 3 October 2024. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.

How many insiders are buying SMSI stock?

No insider purchases of SMSI were filed in the last 90 days.

How many insiders are selling SMSI stock?

No insider sales of SMSI were filed in the last 90 days. 2 sales are on record for this company.

Where can I see SMSI SEC filings (Form 4, 10-K, 10-Q, 8-K)?

This page collects SMSI Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.

More Information Technology companies with insider activity

Recent insider filings

The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.

Sep 15, 2026 - Timothy C. Huffmyer view on EDGAR
Sep 15, 2026 - William W. Smith Jr. view on EDGAR
Aug 20, 2026 - Bethany M. Braund view on EDGAR
Aug 20, 2026 - Timothy C. Huffmyer view on EDGAR
Aug 20, 2026 - William W. Smith Jr. view on EDGAR
May 18, 2026 - William W. Smith Jr. view on EDGAR
May 18, 2026 - Timothy C. Huffmyer view on EDGAR
May 18, 2026 - Bethany M. Braund view on EDGAR
Apr 28, 2026 - William W. Smith Jr. view on EDGAR

Related companies with recent insider activity

Learn more

What the Form 4 transaction codes mean: Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
Insider activity in Information Technology: Where SMSI's peers are being bought and sold.
Every recent Form 4: The market-wide feed, updated as filings arrive from SEC EDGAR.

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Form 4 transaction type

Transactions

Total value

Tax withholding / forfeiture

1,821

Traded

Insider

Transaction

Security

Price

Value

Sep 15, 2026

Timothy C. Huffmyer - Officer

Tax withholding / forfeiture

Common stock

100

$2.90^{footnote F1}

$290

Footnote F1 (price): Shares withheld, at an average vesting price of $2.90 per share, for the payment of income taxes.

Sep 15, 2026

William W. Smith Jr. - Officer

Tax withholding / forfeiture

Common stock

456

$2.90^{footnote F1}

$1K

Footnote F1 (price): Shares withheld, at an average vesting price of $2.90 per share, for the payment of income taxes.

Aug 19, 2026

Bethany M. Braund - Officer

Tax withholding / forfeiture

Common stock

$2.86^{footnote F1}

Footnote F1 (price): Shares withheld, at an average vesting price of $2.86 per share, for the payment of income taxes.

Aug 19, 2026

Timothy C. Huffmyer - Officer

Tax withholding / forfeiture

Common stock

300

$2.87^{footnote F1}

$861

Footnote F1 (price): Shares withheld, at an average vesting price of $2.87 per share, for the payment of income taxes.

Aug 19, 2026

William W. Smith Jr. - Officer

Tax withholding / forfeiture

Common stock

963

$2.87^{footnote F1}

$3K

Footnote F1 (price): Shares withheld, at an average vesting price of $2.87 per share, for the payment of income taxes.

May 14, 2026

William W. Smith Jr. - Officer

Tax withholding / forfeiture

Common stock

1,618

$0.87^{footnote F1}

$1K

Footnote F1 (price): Shares withheld, at an average vesting price of $0.8685 per share, for the payment of income taxes.

May 14, 2026

Timothy C. Huffmyer - Officer

Tax withholding / forfeiture

Common stock

588

$0.87^{footnote F1}

$511

Footnote F1 (price): Shares withheld, at an average vesting price of $0.8685 per share, for the payment of income taxes.

May 14, 2026

Bethany M. Braund - Officer

Tax withholding / forfeiture

Common stock

1,850

$0.87^{footnote F1}

$2K

Footnote F1 (price): Shares withheld, at an average vesting price of $0.8685 per share, for the payment of income taxes.

Apr 27, 2026

William W. Smith Jr. - Officer

Tax withholding / forfeiture

Common stock

1,618

$0.70^{footnote F1}

$1K

Footnote F1 (price): Shares withheld, at an average vesting price of $0.70 per share, for the payment of income taxes.

Apr 27, 2026

Bethany M. Braund - Officer

Tax withholding / forfeiture

Common stock

6,761

$0.72^{footnote F1}

$5K

Footnote F1 (price): Shares withheld, at an average vesting price of $0.72 per share, for the payment of income taxes.

Apr 27, 2026

Timothy C. Huffmyer - Officer

Tax withholding / forfeiture

Common stock

588

$0.70^{footnote F1}

$412

Footnote F1 (price): Shares withheld, at an average vesting price of $0.70 per share, for the payment of income taxes.

Mar 31, 2026

Bethany M. Braund - Officer

Grant or award

Common stock

20,000^{footnote F1}

$0.00

Footnote F1 (shares): Unrestricted stock award pursuant to the Smith Micro Software, Inc. Amended and Restated Omnibus Equity Incentive Plan

Mar 13, 2026

William W. Smith Jr. - Officer

Tax withholding / forfeiture

Common stock

4,943

$0.85^{footnote F1}

$4K

Footnote F1 (price): Shares withheld, at an average vesting price of $0.846 per share, for the payment of income taxes.

Mar 13, 2026

Timothy C. Huffmyer - Officer

Tax withholding / forfeiture

Common stock

1,788

$0.85^{footnote F1}

$2K

Footnote F1 (price): Shares withheld, at an average vesting price of $0.846 per share, for the payment of income taxes.

Mar 9, 2026

Chetan Sharma - Director

Grant or award

Stock option (right to buy)

12,500

$0.00

Mar 9, 2026

Gregory J. Szabo - Director

Grant or award

Common stock

12,500^{footnote F1}

$0.00

Footnote F1 (shares): Unrestricted stock award pursuant to the Company's Amended and Restated Omnibus Equity Incentive Plan.

Mar 9, 2026

Asha Keddy - Director

Grant or award

Common stock

12,500^{footnote F1}

$0.00

Footnote F1 (shares): Unrestricted stock award pursuant to the Company's Amended and Restated Omnibus Equity Incentive Plan.

Mar 9, 2026

Samuel Gulko - Director

Grant or award

Common stock

12,500^{footnote F1}

$0.00

Footnote F1 (shares): Unrestricted stock award pursuant to the Company's Amended and Restated Omnibus Equity Incentive Plan.

Mar 9, 2026

Steven Lawrence Elfman - Director

Grant or award

Common stock

12,500^{footnote F1}

$0.00

Footnote F1 (shares): Unrestricted stock award pursuant to the Company's Amended and Restated Omnibus Equity Incentive Plan.

Mar 9, 2026

Thomas G. Campbell - Director

Grant or award

Common stock

12,500^{footnote F1}

$0.00

Footnote F1 (shares): Unrestricted stock award pursuant to the Company's Amended and Restated Omnibus Equity Incentive Plan.

Mar 9, 2026

Andrew Arno - Director

Grant or award

Common Stock

12,500^{footnote F1}

$0.00

Footnote F1 (shares): Unrestricted stock award granted pursuant to the Company's Amended and Restated Omnibus Equity Incentive Plan.

Mar 10, 2026

William W. Smith Jr. - Officer

Grant or award

Common stock purchase warrant

8,818,254

-^{footnote F1}

Mar 10, 2026

William W. Smith Jr. - Officer

Grant or award

Secured convertible note

-^{footnote F1}

-^{footnote F2}

Footnote F1 (price): Pursuant to a Securities Purchase Agreement, dated March 4, 2026, between Smith Micro Software, Inc. and the Buyer parties thereto, Smith Living Trust agreed to purchase a secured convertible note together with a warrant for an aggregate purchase price of $4,585,491.93. The… Full note on SEC EDGAR
Footnote F2 (value): Original principal amount of the secured convertible note (in dollars).

Mar 6, 2026

Timothy C. Huffmyer - Officer

Grant or award

Common stock purchase warrant

174,944

-^{footnote F1}

Mar 6, 2026

Timothy C. Huffmyer - Officer

Grant or award

Secured convertible note

-^{footnote F1}

-^{footnote F3}

Footnote F1 (price): Pursuant to a Securities Purchase Agreement, dated March 4, 2026, between Smith Micro Software, Inc. and the Buyer parties thereto, the Reporting Person agreed to purchase a secured convertible note together with a warrant for an aggregate purchase price of $90,970.45. The… Full note on SEC EDGAR
Footnote F3 (value): Original principal amount of the secured convertible note (in dollars).

Mar 4, 2026

Timothy C. Huffmyer - Officer

Derivative

Common stock

5,261^{footnote F1}

$0.00

Footnote F1 (shares): Shares of restricted stock forfeited in accordance with the terms of grant.

Mar 4, 2026

William W. Smith Jr. - Officer

Derivative

Common stock

12,626^{footnote F2}

$0.00

Feb 27, 2026

William W. Smith Jr. - Officer

Tax withholding / forfeiture

Common stock

43,366

$0.52^{footnote F1}

$23K

Footnote F1 (price): Shares withheld, at an average vesting price of $0.523 per share, for the payment of income taxes.
Footnote F2 (shares): Shares of restricted stock forfeited in accordance with the terms of grant.

Feb 27, 2026

Timothy C. Huffmyer - Officer

Tax withholding / forfeiture

Common stock

27,010

$0.51^{footnote F1}

$14K

Footnote F1 (price): Shares withheld, at an average vesting price of $0.512 per share, for the payment of income taxes.

Feb 21, 2026

Timothy C. Huffmyer - Officer

Derivative

Common stock

7,280^{footnote F1}

$0.00

Footnote F1 (shares): Shares of restricted stock forfeited in accordance with the terms of grant.

Feb 21, 2026

William W. Smith Jr. - Officer

Derivative

Common stock

9,706^{footnote F1}

$0.00

Footnote F1 (shares): Shares of restricted stock forfeited in accordance with the terms of grant.

Feb 3, 2026

William W. Smith Jr. - Officer

Grant or award

Common stock purchase warrant

1,480,165

-^{footnote F1}

Footnote F1 (price): The common stock purchase warrant was purchased from the issuer by Smith Living Trust (for which William W. Smith, Jr. serves as co-trustee) together with a promissory note in exchange for aggregate consideration of approximately $1,000,000.

Nov 12, 2025

Timothy C. Huffmyer - Officer

Tax withholding / forfeiture

Common Stock

19,143

$0.68^{footnote F3}

$13K

Nov 11, 2025

Timothy C. Huffmyer - Officer

Tax withholding / forfeiture

Common Stock

294

$0.78^{footnote F1}

$228

Nov 11, 2025

Timothy C. Huffmyer - Officer

Derivative

Common Stock

9,676^{footnote F2}

$0.00

Footnote F1 (price): Shares withheld, at an average vesting price of $0.7752 per share, for the payment of income taxes.
Footnote F2 (shares): Shares of restricted stock forfeited in accordance with the terms of grant.
Footnote F3 (price): Shares withheld, at an average vesting price of $0.6845 per share, for the payment of income taxes.