As of September 29, 2026, the three largest insider holders of IMMR are Eric Singer (President And Ceo, 2.10Mn shares), William C Martin (Chief Strategy Officer, 1.42Mn shares), William C Martin (Director, 358.18K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Eric Singer | President And Ceo | 2,101,801 | 0 | 2,101,801 | 48.1% | 02 Jul, 2026 |
| 2 | William C Martin | Chief Strategy Officer | 1,781,345 | 0 | 1,781,345 | 40.8% | 04 Aug, 2026 |
| 3 | Emily Hoffman | Director | 97,100 | 0 | 97,100 | 2.2% | 07 Apr, 2026 |
| 4 | Sumit Agarwal | Director | 94,468 | 0 | 94,468 | 2.2% | 25 May, 2022 |
| 5 | Childress Frederick Wasch | Director | 87,913 | 0 | 87,913 | 2.0% | 07 Apr, 2026 |
| 6 | Elias Nader | Director | 68,323 | 0 | 68,323 | 1.6% | 07 Apr, 2026 |
| 7 | Aaron Akerman | Chief Financial Officer | 47,078 | 0 | 47,078 | 1.1% | 11 Aug, 2023 |
| 8 | J Michael Dodson | Chief Financial Officer | 34,233 | 0 | 34,233 | 0.8% | 16 Jun, 2026 |
| 9 | Francis Jose | General Counsel | 28,032 | 0 | 28,032 | 0.6% | 13 Mar, 2023 |
| 10 | Mary Dotz | Director | 26,151 | 0 | 26,151 | 0.6% | 29 Jan, 2022 |
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 |
|---|---|---|---|---|---|---|---|---|
| 31 Jul, 2026 | William C Martin | Chief Strategy Officer | Acquired A | 5,640 | $0.00 | $0 | 1,423,164 | Direct |
| 01 Jul, 2026 | Eric Singer | President And Ceo | Disposed F | 14,757 | $6.93 | $102.27K | 2,116,558 | Direct |
| 01 Jul, 2026 | Eric Singer | President And Ceo | Disposed F | 14,757 | $6.93 | $102.27K | 2,101,801 | Direct |
| 12 Jun, 2026 | J Michael Dodson | Chief Financial Officer | Disposed S | 4,899 | $6.54 | $32.04K | 34,233 | Direct |
| 30 Apr, 2026 | William C Martin | Chief Strategy Officer | Acquired A | 7,425 | $0.00 | $0 | 1,399,652 | Direct |
| 30 Apr, 2026 | William C Martin | Chief Strategy Officer | Acquired A | 17,872 | $0.00 | $0 | 1,417,524 | Direct |
| 06 Apr, 2026 | Elias Nader | Director | Acquired A | 21,815 | $0.00 | $0 | 68,323 | Direct |
| 06 Apr, 2026 | Emily Hoffman | Director | Acquired A | 21,815 | $0.00 | $0 | 97,100 | Direct |
| 06 Apr, 2026 | Childress Frederick Wasch | Director | Acquired A | 21,815 | $0.00 | $0 | 87,913 | Direct |
| 01 Apr, 2026 | Eric Singer | President And Ceo | Disposed F | 14,757 | $5.56 | $82.05K | 2,146,165 | Direct |
| 01 Apr, 2026 | Eric Singer | President And Ceo | Disposed F | 14,850 | $5.56 | $82.57K | 2,131,315 | Direct |
| 30 Jan, 2026 | William C Martin | Chief Strategy Officer | Acquired A | 6,588 | $0.00 | $0 | 1,392,227 | Direct |
| 01 Jan, 2026 | Eric Singer | President And Ceo | Disposed F | 14,757 | $6.80 | $100.35K | 1,911,087 | Direct |
| 02 Jan, 2026 | Eric Singer | President And Ceo | Disposed F | 37,948 | $6.41 | $243.25K | 1,873,139 | Direct |
| 02 Jan, 2026 | Eric Singer | President And Ceo | Acquired A | 300,000 | $0.00 | $0 | 2,173,139 | Direct |
| 03 Jan, 2026 | Eric Singer | President And Ceo | Disposed F | 12,217 | $6.41 | $78.31K | 2,160,922 | Direct |
| 14 Nov, 2025 | William C Martin | Chief Strategy Officer | Acquired A | 17,647 | $0.00 | $0 | 1,385,639 | Direct |
| 31 Oct, 2025 | William C Martin | Chief Strategy Officer | Acquired A | 7,952 | $0.00 | $0 | 1,367,992 | Direct |
| 03 Oct, 2025 | Eric Singer | President And Ceo | Disposed F | 13,117 | $7.04 | $92.34K | 1,925,844 | Direct |
| 01 Oct, 2025 | Eric Singer | President And Ceo | Disposed F | 14,757 | $7.28 | $107.43K | 1,938,961 | Direct |