James Bylund - 18 Nov 2025 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
18 Nov 2025
Transactions value $
-$331,301
Form type
4
Filing time
19 Nov 2025, 16:30:11 UTC
Previous filing
02 Apr 2025
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) 19 Nov 2025 0001849642

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction RGEN Common Stock Sale -$331K -2.19K -9.24% $151.21 21.5K 18 Nov 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 $151.21 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $151.21 to $151.62, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.