James Bylund - 13 Mar 2025 Form 4 Insider Report for REPLIGEN CORP (RGEN)

Role: Chief Operating Officer
Signature: /s/ Marc Baumgartner (Attorney in Fact)
Issuer symbol: RGEN
Transactions as of: 13 Mar 2025
Transactions value $: -$24,927
Form type: 4
Filing time: 20 Mar 2025, 13:51:51 UTC
Previous filing: 04 Mar 2025
Next filing: 02 Apr 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RGEN	Common Stock	Award	$0	+381	+1.59%	$0	24,340	13 Mar 2025	Direct	F1
transaction	RGEN	Common Stock	Tax liability	-$24,927	-175	-0.72%	$142.44	24,165	13 Mar 2025	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents 63 shares issued pursuant to a Performance Stock Unit ("PSU") award granted to the Issuer on May 16, 2023, and 318 shares issued pursuant to a Performance Stock Unit ("PSU") award granted to the Issuer on December 12, 2023. The Compensation Committee authorized the issuance of the underlying shares based upon the Issuer's achievement of pre-established performance criteria set forth in the PSU award.
F2	Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations of the reporting person that arose upon the release of the performance stock units.

Content

Represents 63 shares issued pursuant to a Performance Stock Unit ("PSU") award granted to the Issuer on May 16, 2023, and 318 shares issued pursuant to a Performance Stock Unit ("PSU") award granted to the Issuer on December 12, 2023. The Compensation Committee authorized the issuance of the underlying shares based upon the Issuer's achievement of pre-established performance criteria set forth in the PSU award.

Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations of the reporting person that arose upon the release of the performance stock units.