As of September 29, 2026, the three largest insider holders of SONM are Holding Company, Llc Ajp (TenPercentOwner, 194.63K shares), Jeffrey Wang (Director, 194.63K shares), Michael C Mulica (Acting Ceo, 54.07K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Holding Company, Llc Ajp | TenPercentOwner | 194,635 | 0 | 194,635 | 64.6% | 10 Aug, 2022 |
| 2 | Michael C Mulica | Acting Ceo | 54,071 | 0 | 54,071 | 17.9% | 10 Feb, 2026 |
| 3 | Clayton Crolius | Chief Financial Officer | 36,719 | 0 | 36,719 | 12.2% | 10 Feb, 2026 |
| 4 | Stanley Morgan | TenPercentOwner | 0 | 8,466 | 8,466 | 2.8% | 14 Oct, 2021 |
| 5 | Robert L. Tirva | Former President, Cfo Coo | 3,146 | 0 | 3,146 | 1.0% | 15 Jul, 2022 |
| 6 | Alan B Howe | Director | 1,764 | 0 | 1,764 | 0.6% | 28 Mar, 2023 |
| 7 | Jose Carlos Principe | Director | 1,494 | 0 | 1,494 | 0.5% | 21 Nov, 2022 |
| 8 | John Kneuer | Director | 402 | 0 | 402 | 0.1% | 16 Nov, 2021 |
| 9 | Susan Swenson | Director | 398 | 0 | 398 | 0.1% | 16 Nov, 2021 |
| 10 | Hao Peter Liu | Chief Executive Officer | 150 | 0 | 150 | 0.0% | 10 Feb, 2025 |
| 11 | Charles Becher | Officer | 35 | 0 | 35 | 0.0% | 25 Apr, 2025 |
| 12 | Jack Steenstra | Director | 27 | 0 | 27 | 0.0% | 25 Apr, 2025 |
| 13 | James S Cassano | Director | 27 | 0 | 27 | 0.0% | 25 Apr, 2025 |
| 14 | Jeffrey Wang | Director | 12 | 0 | 12 | 0.0% | 25 Apr, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 09 Feb, 2026 | Clayton Crolius | Chief Financial Officer | Acquired A | 35,000 | $0.00 | $0 | 36,719 | Direct |
| 09 Feb, 2026 | Michael C Mulica | Acting Ceo | Acquired A | 50,000 | $0.00 | $0 | 54,071 | Direct |
| 26 Jun, 2025 | Laurence W Lytton | TenPercentOwner | Disposed S | 466,402 | $2,699.78 | $1.26Bn | 223 | Direct |
| 30 Jun, 2025 | Laurence W Lytton | TenPercentOwner | Disposed S | 400,514 | $2,501.80 | $1.00Bn | 0 | Direct |
| 23 Apr, 2025 | Michael C Mulica | Director | Disposed S | 27,818 | $2,609.79 | $72.60Mn | 41 | Direct |
| 23 Apr, 2025 | Jeffrey Wang | Director | Disposed S | 4,478 | $2,609.79 | $11.69Mn | 12 | Direct |
| 23 Apr, 2025 | James S Cassano | Director | Disposed S | 23,381 | $2,609.79 | $61.02Mn | 27 | Direct |
| 23 Apr, 2025 | Jack Steenstra | Director | Disposed S | 23,381 | $2,609.79 | $61.02Mn | 27 | Direct |
| 23 Apr, 2025 | Charles Becher | Officer | Disposed S | 31,326 | $2,609.79 | $81.75Mn | 35 | Direct |
| 23 Apr, 2025 | Clayton Crolius | Chief Financial Officer | Disposed S | 11,634 | $2,609.79 | $30.36Mn | 17 | Direct |
| 31 Mar, 2025 | Jack Steenstra | Director | Acquired A | 46,728 | $0.00 | $0 | 40 | Direct |
| 31 Mar, 2025 | James S Cassano | Director | Acquired A | 46,728 | $0.00 | $0 | 40 | Direct |
| 31 Mar, 2025 | Michael C Mulica | Director | Acquired A | 46,728 | $0.00 | $0 | 56 | Direct |
| 06 Feb, 2025 | Hao Peter Liu | Chief Executive Officer | Acquired A | 63,604 | $0.00 | $0 | 150 | Direct |
| 06 Feb, 2025 | Charles Becher | Officer | Acquired A | 70,671 | $0.00 | $0 | 52 | Direct |
| 06 Feb, 2025 | Clayton Crolius | Chief Financial Officer | Acquired A | 33,922 | $0.00 | $0 | 24 | Direct |
| 12 Nov, 2024 | Michael C Mulica | Director | Acquired A | 14,124 | $0.00 | $0 | 32 | Direct |
| 13 Nov, 2024 | Michael C Mulica | Director | Disposed S | 2,559 | $5,903.53 | $15.11Mn | 30 | Direct |
| 19 Jul, 2024 | Jeffrey Wang | Director, TenPercentOwner | Disposed S | 1,623 | $6,605.47 | $10.72Mn | 14 | Direct |
| 19 Jul, 2024 | Jack Steenstra | Director | Disposed S | 1,623 | $6,605.47 | $10.72Mn | 14 | Direct |