REPLIGEN CORP — Director's Dealing 2020

Mar 3, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REPLIGEN CORP (RGEN)
CIK: 0000730272
Period of Report: 2020-02-27

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-02-27	Common Stock	A	18583	$0.00	Acquired	244731	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-02-27	Stock Option (Right to Buy)	$86.10	A	18128	Disposed	2030-02-27	Common Stock (18128)	Direct

Footnotes

F1: Mr. Hunt was awarded 18,583 restricted stock units. Each restricted stock unit represents a contingent right to receive one share of Repligen Corporation's Common Stock. The restricted stock units vest in equal annual installments over a three-year period beginning on the first anniversary of the grant date. The restricted stock units may be settled only by delivering shares of Repligen Corporation's Common Stock, and thus, the grant is being reported in Table 1 as allowed per SEC guidance.

F2: One third of the stock options will vest and become exercisable annually on February 27, 2021, February 27, 2022 and February 27, 2023.