Comparable stake leader
William W. Smith Jr.
SEC ownership of SMITH MICRO SOFTWARE, INC.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000948708.
Disclosed value leader
William W. Smith Jr.
Comparable rows
31/33
Latest evidence
26 May 2026
- Public ticker
- SMSI on Nasdaq
- Parsed ownership sources
- 13D/G, 3/4/5, and 13F
- Largest SEC-reported holder
- William W. Smith Jr.
- Latest 13D/G holder
- William W. Smith Jr.
- Latest parsed ownership date
- 26 May 2026
- Issuer CIK
- 0000948708
- Issuer location
- Pittsburgh, PA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of SMITH MICRO SOFTWARE, INC. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
William W. Smith Jr.
Disclosed value leader
William W. Smith Jr.
Comparable rows
31/33
Latest evidence
26 May 2026
13D/G
3/4/5
13F
Lead comparable stake: 37%
2 rows are not safely comparable across share classes.
13D/G row: William W. Smith Jr.
Showing 1-8 of 33 holder rows.
Quick read
William W. Smith Jr. leads the comparable SEC ownership view at 37%.
31 of 33 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens William W. Smith Jr.'s linked filing trail.
Comparable ownership
Top 5
William W. Smith Jr.
37%
James M. Kempton
0.67%
Andrew Arno
0.3%
Gregory J. Szabo
0.23%
Samuel Gulko
0.22%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 33 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| William W. Smith Jr. |
13D/G
3/4/5
SMITH WILLIAM W JR · Executive Chairman, Director, 10%+ Owner
|
37%
|
$8,771,870
11,695,827 shares
|
+$1,736,254 | 26 May 2026 |
| James M. Kempton |
3/4/5
VP, CFO and Treasurer
|
0.67%
|
$197,678
210,296 shares
|
— | 12 May 2025 |
| Andrew Arno |
3/4/5
Director
|
0.3%
|
$51,496
93,632 shares
|
— | 09 Mar 2026 |
| Gregory J. Szabo |
3/4/5
Director
|
0.23%
|
$40,421
73,493 shares
|
— | 09 Mar 2026 |
| Samuel Gulko |
3/4/5
Director
|
0.22%
|
$38,650
70,274 shares
|
— | 09 Mar 2026 |
| Steven L. Elfman |
3/4/5
Director
|
0.22%
|
$37,997
69,087 shares
|
— | 09 Mar 2026 |
| Asha Keddy |
3/4/5
Director
|
0.17%
|
$30,045
54,629 shares
|
— | 09 Mar 2026 |
| Thomas G. Campbell |
3/4/5
Director
|
0.16%
|
$27,338
49,706 shares
|
— | 09 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$44,600.
Buys
$0
Insiders: 0
Sells
$44,600
Insiders: 1
Net
-$44,600
Shares: -75,294
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 75,294
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 75,294 | $0 | $44,600 | -$44,600 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-12 of 12 reporting-owner rows connected to SMITH MICRO SOFTWARE, INC.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
12
Largest Forms 3/4/5 holder
William W. Smith Jr.
Net 12M change
-$44,600
Latest report
14 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| William W. Smith Jr. | Executive Chairman, Director, 10%+ Owner | $4,181,734 | -$44,600 | -1.1% | Median | 14 May 2026 |
| James M. Kempton | VP, CFO and Treasurer | $197,678 | Mixed | 12 May 2025 | ||
| Timothy C. Huffmyer | President and CEO | $131,968 | Median | 14 May 2026 | ||
| Andrew Arno | Director | $51,496 | Mixed | 09 Mar 2026 | ||
| Gregory J. Szabo | Director | $40,421 | Mixed | 09 Mar 2026 | ||
| Samuel Gulko | Director | $38,650 | Mixed | 09 Mar 2026 | ||
| Steven L. Elfman | Director | $37,997 | Mixed | 09 Mar 2026 | ||
| Asha Keddy | Director | $30,045 | Mixed | 09 Mar 2026 | ||
| Thomas G. Campbell | Director | $27,338 | Mixed | 09 Mar 2026 | ||
| Bethany M. Braund | VP, CFO and Treasurer | $22,288 | Median | 14 May 2026 | ||
| Chetan Sharma | Director | Mixed | 09 Mar 2026 | |||
| Michael K. Fox | Interim CFO | Mixed | 03 Sep 2021 |
Recent insider transactions for SMITH MICRO SOFTWARE, INC.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| William W. Smith Jr. | SMSI | Common stock | Tax liability | -0.55% | -1,618 | 293,520 | 14 May 2026 | Direct | ||
| Timothy C. Huffmyer | SMSI | Common stock | Tax liability | -0.32% | -588 | 183,391 | 14 May 2026 | Direct | ||
| Bethany M. Braund | SMSI | Common stock | Tax liability | -5.64% | -1,850 | 30,974 | 14 May 2026 | Direct | ||
| William W. Smith Jr. | SMSI | Common stock | Tax liability | -0.55% | -1,618 | 295,138 | 27 Apr 2026 | Direct | ||
| Bethany M. Braund | SMSI | Common stock | Tax liability | -17.1% | -6,761 | 32,824 | 27 Apr 2026 | Direct | ||
| Timothy C. Huffmyer | SMSI | Common stock | Tax liability | -0.32% | -588 | 183,979 | 27 Apr 2026 | Direct | ||
| Bethany M. Braund | SMSI | Common stock | Award | 102.1% | 20,000 | 39,585 | 31 Mar 2026 | Direct | ||
| William W. Smith Jr. | SMSI | Common stock | Tax liability | -1.64% | -4,943 | 296,756 | 13 Mar 2026 | Direct | ||
| Timothy C. Huffmyer | SMSI | Common stock | Tax liability | -0.96% | -1,788 | 184,567 | 13 Mar 2026 | Direct | ||
| William W. Smith Jr. | SMSI | Secured convertible note | Award | 0 | $4,585,492 | 10 Mar 2026 | Smith Living Trust | |||
| William W. Smith Jr. | SMSI | Common stock purchase warrant | Award | 8,818,254 | 8,818,254 | 10 Mar 2026 | Smith Living Trust | |||
| Chetan Sharma | SMSI | Stock option (right to buy) | Award | 12,500 | 12,500 | 09 Mar 2026 | Direct | |||
| Andrew Arno | SMSI | Common Stock | Award | 16.6% | 12,500 | 88,007 | 09 Mar 2026 | Direct | ||
| Gregory J. Szabo | SMSI | Common stock | Award | 20.5% | 12,500 | 73,493 | 09 Mar 2026 | Direct | ||
| Asha Keddy | SMSI | Common stock | Award | 29.7% | 12,500 | 54,629 | 09 Mar 2026 | Direct | ||
| Samuel Gulko | SMSI | Common stock | Award | 21.6% | 12,500 | 70,274 | 09 Mar 2026 | Direct | ||
| Steven L. Elfman | SMSI | Common stock | Award | 22.1% | 12,500 | 69,087 | 09 Mar 2026 | Direct | ||
| Thomas G. Campbell | SMSI | Common stock | Award | 33.6% | 12,500 | 49,706 | 09 Mar 2026 | Direct | ||
| Timothy C. Huffmyer | SMSI | Secured convertible note | Award | 0 | $90,970 | 06 Mar 2026 | Direct | |||
| Timothy C. Huffmyer | SMSI | Common stock purchase warrant | Award | 174,944 | 174,944 | 06 Mar 2026 | Direct | |||
| Timothy C. Huffmyer | SMSI | Common stock | Disposed to Issuer | -2.75% | -5,261 | 186,355 | 04 Mar 2026 | Direct | ||
| William W. Smith Jr. | SMSI | Common stock | Disposed to Issuer | -4.02% | -12,626 | 301,669 | 04 Mar 2026 | Direct | ||
| William W. Smith Jr. | SMSI | Common stock | Tax liability | -12.1% | -43,366 | 314,325 | 27 Feb 2026 | Direct | ||
| Timothy C. Huffmyer | SMSI | Common stock | Tax liability | -12.4% | -27,010 | 191,616 | 27 Feb 2026 | Direct | ||
| Timothy C. Huffmyer | SMSI | Common stock | Disposed to Issuer | -3.22% | -7,280 | 218,626 | 21 Feb 2026 | Direct | ||
| William W. Smith Jr. | SMSI | Common stock | Disposed to Issuer | -2.64% | -9,706 | 357,691 | 21 Feb 2026 | Direct | ||
| William W. Smith Jr. | SMSI | Common stock purchase warrant | Award | 1,480,165 | 1,480,165 | 03 Feb 2026 | Smith Living Trust | |||
| Timothy C. Huffmyer | SMSI | Common stock | Tax liability | -0.11% | -254 | 225,906 | 17 Dec 2025 | Direct | ||
| William W. Smith Jr. | SMSI | Common stock | Tax liability | -0.27% | -1,000 | 367,397 | 17 Dec 2025 | Direct | ||
| William W. Smith Jr. | SMSI | Common stock | Sale | -0.66% | $21,274 | $0.5813 | -36,597 | 5,517,674 | 11 Dec 2025 | Smith Living Trust |
| William W. Smith Jr. | SMSI | Common stock | Sale | -0.69% | $23,327 | $0.6028 | -38,697 | 5,554,271 | 10 Dec 2025 | Smith Living Trust |
| Timothy C. Huffmyer | SMSI | Common stock | Award | 50% | 75,398 | 226,160 | 09 Dec 2025 | Direct | ||
| William W. Smith Jr. | SMSI | Common stock | Award | 47.7% | 119,049 | 368,397 | 09 Dec 2025 | Direct | ||
| Timothy C. Huffmyer | SMSI | Common Stock | Tax liability | -11.3% | -19,143 | 150,762 | 12 Nov 2025 | Direct | ||
| William W. Smith Jr. | SMSI | Common Stock | Tax liability | -11% | -30,813 | 249,348 | 12 Nov 2025 | Direct | ||
| Timothy C. Huffmyer | SMSI | Common Stock | Disposed to Issuer | -5.39% | -9,676 | 169,905 | 11 Nov 2025 | Direct | ||
| Timothy C. Huffmyer | SMSI | Common Stock | Tax liability | -0.16% | -294 | 179,581 | 11 Nov 2025 | Direct | ||
| William W. Smith Jr. | SMSI | Common Stock | Disposed to Issuer | -4.4% | -12,901 | 280,161 | 11 Nov 2025 | Direct | ||
| William W. Smith Jr. | SMSI | Common Stock | Tax liability | -0.34% | -1,000 | 293,062 | 11 Nov 2025 | Direct | ||
| William W. Smith Jr. | SMSI | Common Stock | Award | 66.6% | 2,236,136 | 5,592,968 | 07 Nov 2025 | Smith Living Trust | ||
| William W. Smith Jr. | SMSI | Common stock purchase warrant | Award | 2,236,136 | 2,236,136 | 07 Nov 2025 | Smith Living Trust | |||
| Gregory J. Szabo | SMSI | Common Stock | Award | 15.1% | 7,993 | 60,993 | 09 Oct 2025 | Direct | ||
| Asha Keddy | SMSI | Common Stock | Award | 23.4% | 7,993 | 42,129 | 09 Oct 2025 | Direct | ||
| Samuel Gulko | SMSI | Common Stock | Award | 16.1% | 7,993 | 57,774 | 09 Oct 2025 | Direct | ||
| Steven L. Elfman | SMSI | Common Stock | Award | 16.4% | 7,993 | 56,587 | 09 Oct 2025 | Direct | ||
| Thomas G. Campbell | SMSI | Common Stock | Award | 27.4% | 7,993 | 37,206 | 09 Oct 2025 | Direct | ||
| Andrew Arno | SMSI | Common Stock | Award | 11.8% | 7,993 | 75,507 | 09 Oct 2025 | Direct | ||
| William W. Smith Jr. | SMSI | Common stock | Gift | 1.43% | 47,473 | 3,356,832 | 29 Sep 2025 | Smith Living Trust | ||
| William W. Smith Jr. | SMSI | Common stock | Gift | -13.9% | -47,473 | 294,062 | 29 Sep 2025 | Direct | ||
| William W. Smith Jr. | SMSI | Common stock purchase warrant | Award | 518,561 | 518,561 | 17 Sep 2025 | Smith Living Trust |
* marks a reported price that did not pass the local price check.