GENERATION BIO CO

CUSIP: 37148K100 Class: Common Stock

MARTINGALE ASSET MANAGEMENT L P's Holding History (CIK: 0000936944)

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

Q3 2023
Shares 74,304 Value ($000) $282 Avg Close — Range —
Q2 2023
Shares 74,304 Value ($000) $409 Avg Close — Range —
Q1 2023
Shares 74,304 Value ($000) $320 Avg Close — Range —
Q4 2022
Shares 74,304 Value ($000) $292 Avg Close — Range —
Q3 2022
Shares 74,304 Value ($000) $395 Avg Close — Range —
Q2 2022
Shares 74,310 Value ($000) $488 Avg Close — Range —
Q1 2022
Shares 78,336 Value ($000) $575 Avg Close — Range —
Q4 2021
Shares 17,953 Value ($000) $128 Avg Close — Range —
Q3 2021
Shares 14,323 Value ($000) $360 Avg Close — Range —