REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

HEADINVEST, LLC's Holding History (CIK: 0001372130)

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

Q3 2023

Shares 10 Value ($000) $2 Avg Close $163.47 Range $134.64 - $181.26

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	10	$2	$163.47	$134.64 - $181.26