REPLIGEN CORP

Ticker: RGEN CUSIP: 759916109 Class: Common Stock

SHEPHERD KAPLAN KROCHUK, LLC's Holding History (CIK: 0001218583)

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

Q2 2014

Shares 18,797 Value ($000) $428 Avg Close $17.80 Range $12.60 - $23.14

Q1 2014

Shares 17,513 Value ($000) $226 Avg Close $14.34 Range $11.70 - $17.26

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2014	18,797	$428	$17.80	$12.60 - $23.14
Q1 2014	17,513	$226	$14.34	$11.70 - $17.26