January 23, 2026 · Form 4 insider transaction
PATEL DINESH V PH D sold 6,000 shares of PTGX at $0.00 per share, a transaction worth N/A. The trade was recorded as gift and disclosed on an SEC Form 4, filed 4 days after the transaction.
On January 23, 2026, the Reporting Person made a charitable donation of 6,000 shares of common stock to a donor-advised fund, which will use the gifted shares for charitable purposes.