REPLIGEN CORP — Director's Dealing 2016

Jun 29, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REPLIGEN CORP (RGEN)
CIK: 0000730272
Period of Report: 2016-06-28

Reporting Person: RYAN THOMAS F JR (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-06-28	Common Stock	M	5000	$3.22	Acquired	27094	Direct
2016-06-28	Common Stock	S	10000	$24.5888	Disposed	17094	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-06-28	Stock Option (Right to Buy)	$3.22	M	5000	Disposed	2021-12-15	Common Stock (5000)	Direct

Footnotes

F1: $24.5888 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.4601 to $24.71, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.