REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

RENAISSANCE GROUP LLC's Holding History (CIK: 0000944234)

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

Q4 2013

Shares 24,520 Value ($000) $334 Avg Close $11.94 Range $9.89 - $14.05

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2013	24,520	$334	$11.94	$9.89 - $14.05