James Bylund - 04 Mar 2026 Form 4 Insider Report for REPLIGEN CORP (RGEN)

Role
Chief Operating Officer
Signature
/s/ Jennifer Carmichael (Attorney in Fact)
Issuer symbol
RGEN
Transactions as of
04 Mar 2026
Net transactions value
$0
Form type
4
Filing time
05 Mar 2026, 13:28:48 UTC
Previous filing
03 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Bylund James Chief Operating Officer C/O REPLIGEN CORPORATION, 41 SEYON ST., BLDG 1, STE 100, WALTHAM /s/ Jennifer Carmichael (Attorney in Fact) 05 Mar 2026 0001849642

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction RGEN Common Stock Award +125 +0.71% $0.000000* 17,734 04 Mar 2026 Direct F1
transaction RGEN Common Stock Tax liability -62 -0.35% $125.84* 17,672 04 Mar 2026 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents 125 shares issued pursuant to a Performance Stock Unit ("PSU") award granted to the Issuer on January 1, 2025. 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.