Phio Pharmaceuticals CEO Robert Bitterman Withholds 68,550 Shares

What Happened
Robert J. Bitterman, Chairman, President, CEO and a director of Phio Pharmaceuticals Corp. (PHIO), had 68,550 shares withheld by the issuer on 2026-09-11 to satisfy tax withholding obligations related to vesting restricted stock units. The withholding price was $1.03 per share for a withholding value of $70,607. This was a tax-withholding (code F) transaction — not an open-market sale.

Key Details

• Transaction date: 2026-09-11; Filing date: 2026-09-15 (filed within the normal two-business-day window).
• Withheld: 68,550 shares at $1.03/share; total withholding value ≈ $70,607.
• Shares owned after transaction: not specified in the provided filing excerpt (see full Form 4 for total beneficial ownership).
• Footnotes: F1 — shares were withheld by the issuer to satisfy tax obligations; no shares were sold. F2 — reported ownership figures include shares underlying unvested RSUs.
• Transaction code: F (tax withholding on vesting of RSUs), not a purchase (P) or sale (S).

Context
Tax-withholding transactions on RSU vesting are routine and typically do not signal a decision to liquidate shares on the open market. Because the company withheld shares to cover taxes (net-share settlement), the insider did not receive cash proceeds from a sale. For a full picture of Bitterman’s holdings and any unvested awards, review the complete Form 4 filing.