REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

Stanley-Laman Group, Ltd.'s Holding History (CIK: 0001601489)

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

Q3 2021

Shares 41,069 Value ($000) $11,869 Avg Close $256.54 Range $193.03 - $327.32

Q2 2021

Shares 39,720 Value ($000) $7,929 Avg Close $193.99 Range $162.29 - $223.03

Q1 2021

Shares 36,929 Value ($000) $7,179 Avg Close $205.03 Range $173.09 - $228.84

Q4 2020

Shares 35,735 Value ($000) $6,848 Avg Close $181.94 Range $146.52 - $212.55

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2021	41,069	$11,869	$256.54	$193.03 - $327.32
Q2 2021	39,720	$7,929	$193.99	$162.29 - $223.03
Q1 2021	36,929	$7,179	$205.03	$173.09 - $228.84
Q4 2020	35,735	$6,848	$181.94	$146.52 - $212.55