REPLIGEN CORP — Director's Dealing 2021

Nov 19, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REPLIGEN CORP (RGEN)
CIK: 0000730272
Period of Report: 2021-11-18

Reporting Person: Hunt Anthony (Director, Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-11-18	Common Stock	M	10000	$32.40	Disposed	199495	Direct
2021-11-18	Common Stock	S	2061	$273.91	Disposed	197434	Direct
2021-11-18	Common Stock	S	1955	$274.83	Disposed	195479	Direct
2021-11-18	Common Stock	S	4017	$276.20	Disposed	191462	Direct
2021-11-18	Common Stock	S	1732	$277.01	Disposed	189730	Direct
2021-11-18	Common Stock	S	6024	$278.08	Disposed	183706	Direct
2021-11-18	Common Stock	S	970	$279.08	Disposed	182736	Direct
2021-11-18	Common Stock	S	596	$281.40	Disposed	182140	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-11-18	Stock Option (Right to Buy)	$32.40	M	10000	Acquired	2027-02-23	Common Stock (10000)	Direct

Footnotes

F1: Sale of common stock was effected pursuant to a 10(b)5-1 trading plan adopted on December 9, 2020.

F2: $273.91 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $273.40 to $274.39, 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: $274.83 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $274.43 to $275.24, 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: $276.20 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $275.54 to $276.51, 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: $277.01 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $276.56 to $277.55, 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: $278.08 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $277.58 to $278.53, 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.

F7: $279.08 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $278.58 to $279.53, 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.

F8: $281.40 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $281.13 to $281.66, 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.

F9: This option is currently exercisable.