According to recent filings covering the 90 days ending February 10, 2026, the three most significant insider holders at Phio Pharmaceuticals are Chairman And Pres. & Ceo Robert J Bitterman (411.42K shares), Chief Financial Officer Lisa Cabott Carson (94.00K shares), Director Patricia A Bradford (45.65K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Robert J Bitterman | Chairman And Pres. & Ceo | 411,421 | 06 Feb, 2026 |
| Gerrit Dispersyn | President & Ceo | 218 | 03 Mar, 2022 |
| Lisa Cabott Carson | Chief Financial Officer | 94,000 | 06 Feb, 2026 |
| Patricia A Bradford | 45,651 | 06 Feb, 2026 | |
| Robert L Ferrara | 38,666 | 15 Sep, 2025 | |
| David H Deming | 37,800 | 06 Feb, 2026 | |
| Curtis Lockshin | 35,155 | 06 Feb, 2026 | |
| Jonathan E Freeman | 32,655 | 06 Feb, 2026 | |
| H. Paul Dorman | 21 | 16 Feb, 2022 | |
| Robert M. Infarinato | Vp And Cfo | 11,000 | 13 Sep, 2024 |
| Caitlin Kontulis | Secretary & Vp Finance & Admin | 1,183 | 05 Mar, 2024 |
| Geert Cauwenbergh | 471 | 22 Feb, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 05 Feb, 2026 | Robert J Bitterman | Common Stock, $.0001 par value | A | 120,000 | $0.00 | 411,421 | D | A |
| 05 Feb, 2026 | Patricia A Bradford | Common Stock, $.0001 par value | A | 18,500 | $0.00 | 45,651 | D | A |
| 05 Feb, 2026 | Curtis Lockshin | Common Stock, $.0001 par value | A | 16,600 | $0.00 | 35,155 | D | A |
| 05 Feb, 2026 | David H Deming | Common Stock, $.0001 par value | A | 23,800 | $0.00 | 37,800 | D | A |
| 05 Feb, 2026 | Jonathan E Freeman | Common Stock, $.0001 par value | A | 16,600 | $0.00 | 32,655 | D | A |
| 05 Feb, 2026 | Lisa Cabott Carson | Common Stock, $.0001 par value | A | 47,000 | $0.00 | 94,000 | D | A |
| 31 Dec, 2025 | Robert J Bitterman | Common Stock, $.0001 par value | A | 5,000 | $1.03 | 291,421 | D | P |
| 23 Dec, 2025 | Robert J Bitterman | Common Stock, $.0001 par value | A | 5,000 | $1.02 | 286,421 | D | P |
| 21 Nov, 2025 | Robert J Bitterman | Common Stock, $.0001 par value | A | 5,000 | $1.14 | 281,421 | D | P |
| 18 Nov, 2025 | Robert J Bitterman | Common Stock, $.0001 par value | A | 5,000 | $1.27 | 276,421 | D | P |
| 11 Sep, 2025 | Robert J Bitterman | Common Stock, $.0001 par value | A | 250,000 | $0.00 | 271,421 | D | A |
| 11 Sep, 2025 | Robert J Bitterman | Common Stock, $.0001 par value | D | 4,111 | $2.32 | 21,421 | D | F |
| 11 Sep, 2025 | Patricia A Bradford | Common Stock, $.0001 par value | A | 18,800 | $0.00 | 27,151 | D | A |
| 11 Sep, 2025 | Curtis Lockshin | Common Stock, $.0001 par value | A | 16,200 | $0.00 | 18,555 | D | A |
| 11 Sep, 2025 | David H Deming | Common Stock, $.0001 par value | A | 14,000 | $0.00 | 14,000 | D | A |
| 11 Sep, 2025 | Jonathan E Freeman | Common Stock, $.0001 par value | A | 14,700 | $0.00 | 16,055 | D | A |
| 11 Sep, 2025 | Robert L Ferrara | - | - | 38,666 | D | |||
| 11 Sep, 2025 | Robert L Ferrara | Common Stock, $.0001 par value | A | 23,100 | $0.00 | 38,766 | D | A |
| 11 Sep, 2025 | Robert L Ferrara | Common Stock, $.0001 par value | A | 23,000 | $0.00 | 38,666 | D | A |
| 11 Sep, 2025 | Lisa Cabott Carson | Common Stock, $.0001 par value | A | 47,000 | $0.00 | 47,000 | D | A |