REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

AlphaQuest LLC's Holding History (CIK: 0001883897)

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

Q4 2025

Shares 1,207 Value ($000) $198 Avg Close $156.63 Range $134.19 - $174.01

Q3 2025

Shares 3,091 Value ($000) $413 Avg Close $121.47 Range $110.77 - $135.57

Q2 2025

Shares 838 Value ($000) $104 Avg Close $127.25 Range $102.97 - $148.94

Q3 2024

Shares 1,118 Value ($000) $166 Avg Close $143.39 Range $117.63 - $172.65

Q1 2024

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

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,207	$198	$156.63	$134.19 - $174.01
Q3 2025	3,091	$413	$121.47	$110.77 - $135.57
Q2 2025	838	$104	$127.25	$102.97 - $148.94
Q3 2024	1,118	$166	$143.39	$117.63 - $172.65
Q1 2024	6	$1	$190.44	$167.40 - $211.13