REPLIGEN CORP — Director's Dealing 2016

Jun 28, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REPLIGEN CORP (RGEN)
CIK: 0000730272
Period of Report: 2016-06-27

Reporting Person: DAWES KAREN A (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-06-27	Common Stock	M	15000	$3.10	Acquired	57746	Direct
2016-06-27	Common Stock	F	1982	$23.46	Disposed	55764	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-06-27	Stock Option (Right to Buy)	$3.10	M	15000	Disposed	2016-09-15	Common Stock (15000)	Direct

Footnotes

F1: Payment made via forfeiture of 1,982 shares of Common Stock valued at the Closing Price of $23.46 on June 27, 2016.