REPLIGEN CORP — Director's Dealing 2015

Jun 10, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REPLIGEN CORP (RGEN)
CIK: 0000730272
Period of Report: 2015-06-08

Reporting Person: Benjamin Howard (VP Business Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-06-08	Common stock	S	27303	$38.3243	Disposed	19251	Direct
2015-06-09	Common stock	S	7697	$37.4803	Disposed	11554	Direct

Footnotes

F1: $38.3243 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.975 to $38.68, 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.

F2: $37.4803 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.26 to $37.93, 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.