REPLIGEN CORP — Director's Dealing 2021

Jan 6, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REPLIGEN CORP (RGEN)
CIK: 0000730272
Period of Report: 2021-01-04

Reporting Person: Snodgres Jon (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-01-04	Common Stock	S	656	$188.69	Disposed	32799	Direct
2021-01-04	Common Stock	S	1333	$190.09	Disposed	31466	Direct
2021-01-04	Common Stock	S	202	$190.50	Disposed	31264	Direct
2021-01-04	Common Stock	S	918	$192.74	Disposed	30346	Direct
2021-01-04	Common Stock	S	218	$193.88	Disposed	30128	Direct
2021-01-04	Common Stock	S	571	$195.16	Disposed	29557	Direct
2021-01-04	Common Stock	S	59	$195.77	Disposed	29498	Direct

Footnotes

F1: Sale of common stock was effected pursuant to a 10(b)5-1 trading plan adopted on November 12, 2020.

F2: $188.69 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $188.14 to $189.06, 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.

F3: $190.09 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $189.45 to $190.40, 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.

F4: $192.74 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $192.37 to $193.20, 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.

F5: $193.88 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $193.37 to $193.98, 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.

F6: $195.16 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $194.71 to $195.64, 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.