REPLIGEN CORP — Director's Dealing 2020

Feb 27, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REPLIGEN CORP (RGEN)
CIK: 0000730272
Period of Report: 2020-02-25

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-02-25	Common Stock	M	11735	$32.40	Acquired	231148	Direct
2020-02-25	Common Stock	S	1699	$92.34	Disposed	229449	Direct
2020-02-25	Common Stock	S	8412	$91.66	Disposed	221037	Direct
2020-02-25	Common Stock	S	1624	$90.22	Disposed	219413	Direct
2020-02-25	Common Stock	M	10210	$16.55	Acquired	229623	Direct
2020-02-26	Common Stock	S	1881	$86.86	Disposed	227742	Direct
2020-02-26	Common Stock	S	1594	$86.10	Disposed	226148	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-02-25	Stock Option (Right to Buy)	$32.40	M	11735	Disposed	2027-02-23	Common Stock (11735)	Direct
2020-02-25	Stock Option (Right to Buy)	$16.55	M	10210	Disposed	2024-05-05	Common Stock (10210)	Direct

Footnotes

F1: $92.34 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.10 to $92.64, 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.

F2: $91.66 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.07 to $92.04, 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.

F3: $90.22 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $90.00 to $90.97, 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: Sale of shares in the open market to cover tax liability resulting from the release of restricted stock units.

F5: $86.86 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.75 to $86.96, 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: $86.10 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.75 to $86.73, 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: This option is currently exercisable.