As of September 09, 2026, the three largest insider holders of ONT are James K Price (Director, 1.08Mn shares), Richard E Perlman (Director, 618.62K shares), Richard E Perlman (Director, 618.62K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | James K Price | Director | 1,075,266 | 0 | 1,075,266 | 31.7% | 05 Jan, 2026 |
| 2 | Richard E Perlman | Director | 618,616 | 0 | 618,616 | 18.2% | 16 Mar, 2026 |
| 3 | Jose Revuelta | Chief Strategy Officer | 296,631 | 0 | 296,631 | 8.7% | 12 May, 2026 |
| 4 | Peter Graham | Director | 256,689 | 0 | 256,689 | 7.6% | 08 Jun, 2026 |
| 5 | Joshua W. Lemaire | Chief Operating Officer | 237,098 | 0 | 237,098 | 7.0% | 20 Dec, 2021 |
| 6 | Vijay Manthripragada | President Ceo | 236,788 | 0 | 236,788 | 7.0% | 16 Mar, 2026 |
| 7 | Allan Dicks | Chief Financial Officer | 218,178 | 0 | 218,178 | 6.4% | 12 May, 2026 |
| 8 | Nasym Afsari | General Counsel And Secretary | 204,878 | 0 | 204,878 | 6.0% | 04 Mar, 2026 |
| 9 | De Castro Jose Miguel Fernandez | Director | 162,892 | 0 | 162,892 | 4.8% | 05 Jan, 2026 |
| 10 | Robin Newmark | Director | 29,989 | 0 | 29,989 | 0.9% | 05 Jan, 2026 |
| 11 | Janet Risi Field | Director | 28,288 | 0 | 28,288 | 0.8% | 05 Jan, 2026 |
| 12 | James Laws | Chief Operating Officer | 18,761 | 0 | 18,761 | 0.6% | 13 Mar, 2026 |
| 13 | Vincent Colman | Director | 12,426 | 0 | 12,426 | 0.4% | 05 Jan, 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 |
|---|---|---|---|---|---|---|---|---|
| 05 Jun, 2026 | Peter Graham | Director | Acquired P | 25,140 | $17.19 | $432.16K | 256,689 | Direct |
| 03 Jun, 2026 | Peter Graham | Director | Acquired P | 4,860 | $15.94 | $77.47K | 231,549 | Direct |
| 11 May, 2026 | Jose Revuelta | Chief Strategy Officer | Acquired M | 27,349 | $6.03 | $164.91K | 296,631 | Direct |
| 11 May, 2026 | Allan Dicks | Chief Financial Officer | Acquired P | 6,535 | $15.36 | $100.38K | 218,178 | Direct |
| 11 May, 2026 | Jose Revuelta | Chief Strategy Officer | Disposed M | 27,349 | $0.00 | $0 | 0 | Direct |
| 13 Mar, 2026 | Richard E Perlman | Director | Disposed G | 74,461 | $0.00 | $0 | 618,616 | Direct |
| 13 Mar, 2026 | Vijay Manthripragada | President Ceo | Acquired M | 33,166 | $6.03 | $199.99K | 196,917 | Direct |
| 13 Mar, 2026 | Richard E Perlman | Director | Disposed G | 74,461 | $0.00 | $0 | 618,616 | Direct |
| 13 Mar, 2026 | Vijay Manthripragada | President Ceo | Acquired M | 85,992 | $6.03 | $518.53K | 282,909 | Direct |
| 13 Mar, 2026 | Vijay Manthripragada | President Ceo | Disposed S | 46,121 | $25.41 | $1.17Mn | 236,788 | Direct |
| 13 Mar, 2026 | Vijay Manthripragada | President Ceo | Disposed M | 33,166 | $0.00 | $0 | 85,992 | Direct |
| 13 Mar, 2026 | Vijay Manthripragada | President Ceo | Disposed M | 85,992 | $0.00 | $0 | 0 | Direct |
| 11 Mar, 2026 | James Laws | Chief Operating Officer | Acquired A | 18,761 | $0.00 | $0 | 18,761 | Direct |
| 02 Mar, 2026 | Nasym Afsari | General Counsel And Secretary | Disposed S | 200 | $30.00 | $6.00K | 204,878 | Direct |
| 02 Mar, 2026 | J Thomas Presby | Director | Acquired M | 10,000 | $9.76 | $97.60K | 72,614 | Direct |
| 03 Mar, 2026 | Nasym Afsari | General Counsel And Secretary | Acquired M | 43,348 | $6.03 | $261.39K | 248,226 | Direct |
| 02 Mar, 2026 | J Thomas Presby | Director | Disposed S | 9,541 | $28.82 | $274.97K | 63,073 | Direct |
| 03 Mar, 2026 | Nasym Afsari | General Counsel And Secretary | Disposed S | 43,348 | $28.37 | $1.23Mn | 204,878 | Direct |
| 02 Mar, 2026 | J Thomas Presby | Director | Disposed S | 459 | $29.89 | $13.72K | 62,614 | Direct |
| 02 Mar, 2026 | J Thomas Presby | Director | Disposed M | 10,000 | $0.00 | $0 | 0 | Direct |