REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

Atom Investors LP's Holding History (CIK: 0001738902)

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

Q3 2020

Shares 1,487 Value ($000) $219 Avg Close $142.94 Range $120.12 - $159.97

Q4 2018

Shares 15,061 Value ($000) $794 Avg Close $58.65 Range $48.26 - $70.50

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2020	1,487	$219	$142.94	$120.12 - $159.97
Q4 2018	15,061	$794	$58.65	$48.26 - $70.50