Robert J. Bitterman
President & CEO at Phio Pharmaceuticals Corp.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Phio Pharmaceuticals Corp., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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Phio Pharmaceuticals Corp. September 28, 202696.9%
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Phio Pharmaceuticals Corp. September 11, 202591.6%
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Phio Pharmaceuticals Corp. June 17, 202490.0%
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Phio Pharmaceuticals Corp. July 20, 202387.5%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 28, 2026 | Phio Pharmaceuticals Corp. | Grant or award | +400,000 | — | — |
| Sep 22, 2026 | Phio Pharmaceuticals Corp. | Open-market purchase | +2,000 | $1.03 | $2,058 |
| Sep 11, 2026 | Phio Pharmaceuticals Corp. | Shares withheld for tax | −68,550 | $1.03 | $70,607 |
| Aug 18, 2026 | Phio Pharmaceuticals Corp. | Open-market purchase | +10,000 | $1.06 | $10,600 |
| Jun 26, 2026 | Phio Pharmaceuticals Corp. | Open-market purchase | +10,000 | $0.99 | $9,900 |
| Feb 5, 2026 | Phio Pharmaceuticals Corp. | Grant or award | +120,000 | — | — |
| Dec 31, 2025 | Phio Pharmaceuticals Corp. | Open-market purchase | +5,000 | $1.03 | $5,150 |
| Dec 23, 2025 | Phio Pharmaceuticals Corp. | Open-market purchase | +5,000 | $1.02 | $5,100 |
| Nov 21, 2025 | Phio Pharmaceuticals Corp. | Open-market purchase | +5,000 | $1.14 | $5,700 |
| Nov 18, 2025 | Phio Pharmaceuticals Corp. | Open-market purchase | +5,000 | $1.27 | $6,350 |
| Sep 11, 2025 | Phio Pharmaceuticals Corp. | Shares withheld for tax | −4,111 | $2.32 | $9,538 |
| Sep 11, 2025 | Phio Pharmaceuticals Corp. | Grant or award | +250,000 | — | — |
| Jun 10, 2025 | Phio Pharmaceuticals Corp. | Open-market purchase | +2,000 | $2.42 | $4,840 |
| Jun 9, 2025 | Phio Pharmaceuticals Corp. | Open-market purchase | +1,500 | $2.75 | $4,125 |
| May 22, 2025 | Phio Pharmaceuticals Corp. | Open-market purchase | +1,200 | $1.78 | $2,136 |
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