REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

Weiss Asset Management LP's Holding History (CIK: 0001357550)

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

Q4 2019

Shares 24,000 Value ($000) $2,220 Avg Close $84.01 Range $72.32 - $93.50

Q3 2019

Shares 24,000 Value ($000) $1,841 Avg Close $87.47 Range $75.80 - $99.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2019	24,000	$2,220	$84.01	$72.32 - $93.50
Q3 2019	24,000	$1,841	$87.47	$75.80 - $99.25