OMDA's three largest insider shareholders as of September 29, 2026 are Alpine, Llc Revelation (TenPercentOwner, 816.99K shares), Sean P. Duffy (Chief Executive Officer, 382.59K shares), Wei-Li Shao (President, 295.31K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Alpine, Llc Revelation | TenPercentOwner | 0 | 816,993 | 816,993 | 40.6% | 09 Jun, 2025 |
| 2 | Sean P. Duffy | Chief Executive Officer | 382,594 | 0 | 382,594 | 19.0% | 14 Sep, 2026 |
| 3 | Wei-Li Shao | President | 295,313 | 0 | 295,313 | 14.7% | 14 Sep, 2026 |
| 4 | Jonathan D Root | Director | 191,877 | 0 | 191,877 | 9.5% | 07 Jul, 2026 |
| 5 | Steven L. Cook | Chief Financial Officer | 173,906 | 0 | 173,906 | 8.7% | 14 Sep, 2026 |
| 6 | Jeryl L Hilleman | Director | 26,655 | 0 | 26,655 | 1.3% | 20 Jul, 2026 |
| 7 | Trevor Fetter | Director | 24,421 | 0 | 24,421 | 1.2% | 07 Jul, 2026 |
| 8 | Julie D Klapstein | Director | 21,965 | 0 | 21,965 | 1.1% | 07 Jul, 2026 |
| 9 | Adam Stavisky | Director | 20,618 | 0 | 20,618 | 1.0% | 18 Jun, 2026 |
| 10 | Anne Beal | Director | 20,618 | 0 | 20,618 | 1.0% | 18 Jun, 2026 |
| 11 | Sachin H. Jain | Director | 20,618 | 0 | 20,618 | 1.0% | 18 Jun, 2026 |
| 12 | Craig Gracey | Chief Accounting Officer | 14,412 | 0 | 14,412 | 0.7% | 11 Sep, 2026 |
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 Sep, 2026 | Craig Gracey | Chief Accounting Officer | Disposed S | 644 | $21.73 | $14.00K | 14,412 | Direct |
| 05 Sep, 2026 | Sean P. Duffy | Chief Executive Officer | Disposed F | 4,422 | $22.77 | $100.69K | 397,554 | Direct |
| 05 Sep, 2026 | Steven L. Cook | Chief Financial Officer | Disposed F | 2,010 | $22.77 | $45.77K | 180,706 | Direct |
| 05 Sep, 2026 | Wei-Li Shao | President | Disposed F | 1,843 | $22.77 | $41.97K | 299,349 | Direct |
| 12 Aug, 2026 | Wei-Li Shao | President | Disposed S | 9,418 | $25.02 | $235.61K | 307,372 | Direct |
| 01 Sep, 2026 | Sean P. Duffy | Chief Executive Officer | Acquired M | 12,944 | $5.82 | $75.33K | 424,805 | Direct |
| 01 Sep, 2026 | Craig Gracey | Chief Accounting Officer | Disposed F | 385 | $22.84 | $8.79K | 15,056 | Direct |
| 01 Sep, 2026 | Wei-Li Shao | President | Disposed F | 6,180 | $22.84 | $141.15K | 301,192 | Direct |
| 01 Sep, 2026 | Steven L. Cook | Chief Financial Officer | Disposed F | 4,493 | $22.84 | $102.62K | 182,716 | Direct |
| 01 Sep, 2026 | Sean P. Duffy | Chief Executive Officer | Acquired M | 4,314 | $8.28 | $35.72K | 429,119 | Direct |
| 01 Sep, 2026 | Sean P. Duffy | Chief Executive Officer | Acquired M | 4,314 | $9.18 | $39.60K | 433,433 | Direct |
| 01 Sep, 2026 | Sean P. Duffy | Chief Executive Officer | Disposed S | 7,344 | $23.12 | $169.78K | 426,089 | Direct |
| 01 Sep, 2026 | Sean P. Duffy | Chief Executive Officer | Disposed S | 5,600 | $24.27 | $135.90K | 420,489 | Direct |
| 01 Sep, 2026 | Sean P. Duffy | Chief Executive Officer | Disposed S | 4,933 | $23.13 | $114.10K | 415,556 | Direct |
| 01 Sep, 2026 | Sean P. Duffy | Chief Executive Officer | Disposed S | 3,695 | $24.27 | $89.68K | 411,861 | Direct |
| 01 Sep, 2026 | Sean P. Duffy | Chief Executive Officer | Disposed F | 9,885 | $22.84 | $225.77K | 401,976 | Direct |
| 01 Sep, 2026 | Sean P. Duffy | Chief Executive Officer | Disposed M | 12,944 | $0.00 | $0 | 129,539 | Direct |
| 01 Sep, 2026 | Sean P. Duffy | Chief Executive Officer | Disposed M | 4,314 | $0.00 | $0 | 106,218 | Direct |
| 01 Sep, 2026 | Sean P. Duffy | Chief Executive Officer | Disposed M | 4,314 | $0.00 | $0 | 512,994 | Direct |
| 27 Aug, 2026 | Steven L. Cook | Chief Financial Officer | Acquired M | 1,108 | $8.28 | $9.17K | 188,317 | Direct |