REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

GREAT LAKES ADVISORS, LLC's Holding History (CIK: 0001078013)

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

Q1 2024

Shares 6,362 Value ($000) $1,170 Avg Close $190.44 Range $167.40 - $211.13

Q4 2023

Shares 122,540 Value ($000) $22,033 Avg Close $155.67 Range $110.45 - $188.31

Q3 2023

Shares 123,598 Value ($000) $19,653 Avg Close $163.47 Range $134.64 - $181.26

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2024	6,362	$1,170	$190.44	$167.40 - $211.13
Q4 2023	122,540	$22,033	$155.67	$110.45 - $188.31
Q3 2023	123,598	$19,653	$163.47	$134.64 - $181.26