REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

Arlington Partners LLC's Holding History (CIK: 0001389848)

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

Q1 2023

Shares 25 Value ($000) $4 Avg Close $178.42 Range $147.53 - $200.98

Q1 2022

Shares 170 Value ($000) $32 Avg Close $189.96 Range $156.28 - $265.78

Q4 2021

Shares 455 Value ($000) $121 Avg Close $269.41 Range $243.29 - $306.98

Q3 2021

Shares 557 Value ($000) $161 Avg Close $256.54 Range $193.03 - $327.32

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2023	25	$4	$178.42	$147.53 - $200.98
Q1 2022	170	$32	$189.96	$156.28 - $265.78
Q4 2021	455	$121	$269.41	$243.29 - $306.98
Q3 2021	557	$161	$256.54	$193.03 - $327.32