REPLIGEN CORP — Director's Dealing 2022

Sep 9, 2022

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REPLIGEN CORP (RGEN)
CIK: 0000730272
Period of Report: 2022-09-08

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2022-09-08	Common Stock	M	10000	$33.87	Acquired	204667	Direct
2022-09-08	Common Stock	S	824	$220.08	Disposed	203843	Direct
2022-09-08	Common Stock	S	1235	$221.46	Disposed	202608	Direct
2022-09-08	Common Stock	S	720	$222.24	Disposed	201888	Direct
2022-09-08	Common Stock	S	1389	$223.26	Disposed	200499	Direct
2022-09-08	Common Stock	S	6626	$224.47	Disposed	193873	Direct
2022-09-08	Common Stock	S	10490	$225.22	Disposed	183383	Direct
2022-09-08	Common Stock	S	4873	$226.34	Disposed	178510	Direct
2022-09-08	Common Stock	S	245	$227.01	Disposed	178265	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2022-09-08	Stock Option (Right to Buy)	$33.87	M	10000	Acquired	2028-02-29	Common Stock (10000)	Direct

Footnotes

F1: Sale of common stock was effected pursuant to a 10(b)5-1 trading plan adopted on December 14, 2021.

F2: $220.08 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $219.42 to $220.39, 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: $221.46 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $220.86 to $221.82, 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: $222.24 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $221.87 to $222.70, 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: $223.26 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $222.90 to $223.86, 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: $224.47 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $223.91 to $224.90, 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: $225.22 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $224.91 to $225.91, 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: $226.34 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $225.94 to $226.92, 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: $227.01 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $226.98 to $227.04, 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.

F10: This option is fully vested and exercisable.