REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s Holding History (CIK: 0000912938)

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

Q4 2025

Shares 1,215,527 Value ($000) $199,176 Avg Close $156.63 Range $134.19 - $174.01

Q1 2023

Shares 267,374 Value ($000) $45,015 Avg Close $178.42 Range $147.53 - $200.98

Q4 2022

Shares 264,483 Value ($000) $44,780 Avg Close $181.39 Range $158.58 - $225.62

Q3 2022

Shares 194,550 Value ($000) $36,401 Avg Close $210.87 Range $157.33 - $262.26

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,215,527	$199,176	$156.63	$134.19 - $174.01
Q1 2023	267,374	$45,015	$178.42	$147.53 - $200.98
Q4 2022	264,483	$44,780	$181.39	$158.58 - $225.62
Q3 2022	194,550	$36,401	$210.87	$157.33 - $262.26