REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q3 2025

Shares 11,314 Value ($000) $1,512 Avg Close $121.47 Range $110.77 - $135.57

Q2 2025

Shares 10,202 Value ($000) $1,269 Avg Close $127.25 Range $102.97 - $148.94

Q1 2025

Shares 7,915 Value ($000) $1,007 Avg Close $153.93 Range $125.39 - $182.52

Q4 2024

Shares 6,206 Value ($000) $893 Avg Close $143.40 Range $121.52 - $161.24

Q2 2022

Shares 10,752 Value ($000) $1,746 Avg Close $158.16 Range $137.21 - $190.59

Q1 2022

Shares 6,365 Value ($000) $1,197 Avg Close $189.96 Range $156.28 - $265.78

Q4 2018

Shares 53 Value ($000) $3 Avg Close $58.65 Range $48.26 - $70.50

Q4 2017

Shares 5,712 Value ($000) $207 Avg Close $36.20 Range $31.96 - $40.05

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	11,314	$1,512	$121.47	$110.77 - $135.57
Q2 2025	10,202	$1,269	$127.25	$102.97 - $148.94
Q1 2025	7,915	$1,007	$153.93	$125.39 - $182.52
Q4 2024	6,206	$893	$143.40	$121.52 - $161.24
Q2 2022	10,752	$1,746	$158.16	$137.21 - $190.59
Q1 2022	6,365	$1,197	$189.96	$156.28 - $265.78
Q4 2018	53	$3	$58.65	$48.26 - $70.50
Q4 2017	5,712	$207	$36.20	$31.96 - $40.05