Anthony Hunt - 13 Nov 2025 Form 4 Insider Report for REPLIGEN CORP (RGEN)

Role
Director
Signature
/s/ Jennifer Carmichael (Attorney in Fact)
Issuer symbol
RGEN
Transactions as of
13 Nov 2025
Net transactions value
-$2,992,294
Form type
4
Filing time
14 Nov 2025, 16:30:08 UTC
Previous filing
13 Nov 2025
Next filing
08 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Hunt Anthony Director C/O REPLIGEN CORPORATION, 41 SEYON ST., BLDG 1, STE 100, WALTHAM /s/ Jennifer Carmichael (Attorney in Fact) 14 Nov 2025 0001606030

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction RGEN Common Stock Sale $269,402 -1,784 -1.8% $151.01 98,959 13 Nov 2025 Direct F1
transaction RGEN Common Stock Sale $319,557 -2,100 -2.1% $152.17 96,859 13 Nov 2025 Direct F2
transaction RGEN Common Stock Sale $447,628 -2,923 -3% $153.14 93,936 13 Nov 2025 Direct F3
transaction RGEN Common Stock Sale $385,800 -2,500 -2.7% $154.32 91,436 13 Nov 2025 Direct F4
transaction RGEN Common Stock Sale $466,350 -3,000 -3.3% $155.45 88,436 13 Nov 2025 Direct F5
transaction RGEN Common Stock Sale $896,234 -5,737 -6.5% $156.22 82,699 13 Nov 2025 Direct F6
transaction RGEN Common Stock Sale $307,307 -1,956 -2.4% $157.11 80,743 13 Nov 2025 Direct F7
transaction RGEN Common Stock Options Exercise $99,984 +2,952 +3.7% $33.87 83,695 13 Nov 2025 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction RGEN Stock Option (Right to Buy) Options Exercise $0 +2,952 +25% $0.000000 14,760 13 Nov 2025 Common Stock 2,952 $33.87 Direct F8
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 $151.01 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $150.53 to $151.23, 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.
F2 $152.17 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $151.57 to $152.45, 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.
F3 $153.14 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $152.64 to $153.62, 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.
F4 $154.32 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $153.66 to $154.60, 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.
F5 $155.45 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $154.78 to $155.78, 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.
F6 $156.22 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $155.79 to $156.76, 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.
F7 $157.11 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $156.90 to $157.55, 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.
F8 14,760 of the shares underlying this option have vested. The remaining shares vest as follows: 2,952 shares on March 1, 2026, and 2,952 shares on March 1, 2027.