REPLIGEN CORP — Director's Dealing 2017

Dec 28, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: REPLIGEN CORP (RGEN)
CIK: 0000730272
Period of Report: 2017-12-27

Reporting Person: EDDLEMAN ROY T (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-12-27	Common Stock	G	480000	—	Disposed	357518	Direct
2017-12-27	Common Stock	G	900000	—	Disposed	357518	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	4424826	Indirect

Footnotes

F1: On December 27, 2017, the reporting person contributed 480,000 and 900,000 shares, respectively, of RGEN common stock to separate charitable remainder unit trusts of which the reporting person is the trustee and a lifetime beneficiary.

F2: The RGEN shares shown are held for the benefit of the reporting person in an escrow account established in connection with the Issuer's acquisition of Spectrum, Inc. on August 1, 2017, and are subject to potential indemnification claims of the Issuer relating to the acquisition.

F3: Of the RGEN shares 3,044,826 are owned of record by the Roy T. Eddleman Living Trust UAD 8-7-2000, of which the reporting person is the sole trustee. The reporting person continues to report beneficial ownership of the RGEN shares contributed to the trusts referred to in note (1), but disclaims beneficial ownership of the trusts' shares except to the extent of his pecuniary interest therein.