Phio Pharmaceuticals's top three insider shareholders as of April 11, 2026 are Robert J Bitterman (Chairman, Pres. Ceo, 411.42K shares), Gerrit Dispersyn (President Ceo, 212.33K shares), Lisa Cabott Carson (Chief Financial Officer, 94.00K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Robert J Bitterman | Chairman, Pres. Ceo | 411,421 | 0 | 06 Feb, 2026 |
| Gerrit Dispersyn | President Ceo | 212,327 | 0 | 03 Mar, 2022 |
| Lisa Cabott Carson | Chief Financial Officer | 94,000 | 0 | 06 Feb, 2026 |
| Patricia A Bradford | - | 45,651 | 0 | 06 Feb, 2026 |
| Robert L Ferrara | - | 38,766 | 0 | 15 Sep, 2025 |
| David H Deming | - | 37,800 | 0 | 06 Feb, 2026 |
| Curtis Lockshin | - | 35,155 | 0 | 06 Feb, 2026 |
| Jonathan E Freeman | - | 32,655 | 0 | 06 Feb, 2026 |
| Robert J Bitterman | Chairman, Pres Ceo | 27,149 | 0 | 11 Jun, 2025 |
| Robert J Bitterman | President Ceo | 20,990 | 0 | 11 Jun, 2024 |
| H. Paul Dorman | - | 20,370 | 0 | 16 Feb, 2022 |
| Robert L Ferrara | - | 15,666 | 0 | 11 Jun, 2025 |
| Robert M. Infarinato | Vp, Cfo | 11,000 | 0 | 13 Sep, 2024 |
| Caitlin Kontulis | Secretary Vp Finance Admin | 10,643 | 0 | 05 Mar, 2024 |
| Patricia A Bradford | - | 8,000 | 0 | 12 Sep, 2024 |
| Robert M. Infarinato | Vp, Chief Financial Officer | 8,000 | 0 | 15 Aug, 2024 |
| Geert Cauwenbergh | Chief Executive Officer | 4,235 | 0 | 22 Feb, 2023 |
| Curtis Lockshin | - | 3,197 | 0 | 22 Feb, 2023 |
| Jonathan E Freeman | - | 3,197 | 0 | 22 Feb, 2023 |
| Patricia A Bradford | - | 3,167 | 0 | 22 Feb, 2023 |
| Curtis Lockshin | - | 2,000 | 0 | 12 Sep, 2024 |
| Jonathan E Freeman | - | 1,000 | 0 | 13 Sep, 2024 |
| Robert J Bitterman | Interim Executive Chairman | 1 | 0 | 16 Nov, 2022 |
* 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 | 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 |
| 05 Feb, 2026 | Patricia A Bradford | Common Stock, $.0001 par value | A | 18,500 | $0.00 | 45,651 | D | A |
| 05 Feb, 2026 | Robert J Bitterman | Common Stock, $.0001 par value | A | 120,000 | $0.00 | 411,421 | 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 | Curtis Lockshin | Common Stock, $.0001 par value | A | 16,600 | $0.00 | 35,155 | 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 | 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 | Robert J Bitterman | Common Stock, $.0001 par value | D | 4,111 | $2.32 | 21,421 | D | F |
| 11 Sep, 2025 | Jonathan E Freeman | Common Stock, $.0001 par value | A | 14,700 | $0.00 | 16,055 | D | A |
| 11 Sep, 2025 | Lisa Cabott Carson | Common Stock, $.0001 par value | A | 47,000 | $0.00 | 47,000 | D | A |
| 11 Sep, 2025 | Patricia A Bradford | Common Stock, $.0001 par value | A | 18,800 | $0.00 | 27,151 | 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 | Robert L Ferrara | Common Stock, $.0001 par value | A | 23,100 | $0.00 | 38,766 | D | A |
| 11 Sep, 2025 | Robert J Bitterman | Common Stock, $.0001 par value | A | 250,000 | $0.00 | 271,421 | D | A |
| 10 Jun, 2025 | Robert J Bitterman | Common Stock, $0.0001 par value | A | 2,000 | $2.42 | 27,149 | D | P |