REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

NATIXIS's Holding History (CIK: 0001274981)

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

Q3 2025

Shares 2,586 Value ($000) $346 Avg Close $121.47 Range $110.77 - $135.57

Q2 2025

Shares 350 Value ($000) $44 Avg Close $127.25 Range $102.97 - $148.94

Q1 2025

Shares 4,565 Value ($000) $580 Avg Close $153.93 Range $125.39 - $182.52

Q2 2023

Shares 116,052 Value ($000) $16,417 Avg Close $160.35 Range $135.37 - $182.42

Q4 2021

Shares 6,561 Value ($000) $1,738 Avg Close $269.41 Range $243.29 - $306.98

Q4 2020

Shares 21,600 Value ($000) $4,139 Avg Close $181.94 Range $146.52 - $212.55

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	2,586	$346	$121.47	$110.77 - $135.57
Q2 2025	350	$44	$127.25	$102.97 - $148.94
Q1 2025	4,565	$580	$153.93	$125.39 - $182.52
Q2 2023	116,052	$16,417	$160.35	$135.37 - $182.42
Q4 2021	6,561	$1,738	$269.41	$243.29 - $306.98
Q4 2020	21,600	$4,139	$181.94	$146.52 - $212.55