PRIME MEDICINE INC

Ticker: PRME CUSIP: 74168J101 Class: Common Stock

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 103,213 Value ($000) $358 Avg Close $4.45 Range $3.17 - $6.94

Q2 2024

Shares 1,975 Value ($000) $10 Avg Close $6.06 Range $4.11 - $8.27

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	103,213	$358	$4.45	$3.17 - $6.94
Q2 2024	1,975	$10	$6.06	$4.11 - $8.27