PRIME MEDICINE INC

Ticker: PRME CUSIP: 74168J101 Class: Common Stock

EcoR1 Capital, LLC's Holding History (CIK: 0001587114)

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

Q3 2025
Shares 1,543,326 Value ($000) $8,550 Avg Close $4.06 Range $2.28 - $5.63
Q1 2025
Shares 700,000 Value ($000) $1,393 Avg Close $2.55 Range $1.65 - $3.59
Q4 2024
Shares 700,000 Value ($000) $2,044 Avg Close $3.51 Range $2.56 - $4.71
Q3 2024
Shares 700,000 Value ($000) $2,709 Avg Close $4.63 Range $3.39 - $6.75
Q2 2024
Shares 700,000 Value ($000) $3,598 Avg Close $6.06 Range $4.11 - $8.27
Q1 2024
Shares 700,000 Value ($000) $4,900 Avg Close $7.58 Range $6.22 - $9.77
Q3 2023
Shares 600,000 Value ($000) $5,724 Avg Close $12.99 Range $9.25 - $15.75
Q2 2023
Shares 600,000 Value ($000) $8,790 Avg Close $13.96 Range $11.25 - $17.20
Q1 2023
Shares 600,000 Value ($000) $7,380 Avg Close $16.29 Range $11.07 - $21.48
Q4 2022
Shares 600,000 Value ($000) $11,148 Avg Close $18.06 Range $14.52 - $21.73