Olivier Loeillot - 02 Oct 2025 Form 4 Insider Report for REPLIGEN CORP (RGEN)

Role
Chief Executive Officer, Director
Signature
/s/ Jennifer Carmichael (Attorney in Fact)
Issuer symbol
RGEN
Transactions as of
02 Oct 2025
Net transactions value
-$181,247
Form type
4
Filing time
06 Oct 2025, 10:59:45 UTC
Previous filing
04 Sep 2025
Next filing
26 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Loeillot Olivier Chief Executive Officer, Director C/O REPLIGEN CORPORATION, 41 SEYON ST., BLDG 1, STE 100, WALTHAM /s/ Jennifer Carmichael (Attorney in Fact) 06 Oct 2025 0001995525

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction RGEN Common Stock Tax liability $181,247 -1,248 -2.8% $145.23 42,939 02 Oct 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations of the reporting person that arose upon the release of restricted stock units.