Sec Form 4/A Filing - DAWES KAREN A @ REPLIGEN CORP - 2021-07-13

Insider filing report for Changes in Beneficial Ownership
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FORM 4/A
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person
DAWES KAREN A
2. Issuer Name and Ticker or Trading Symbol
REPLIGEN CORP [ RGEN]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X __ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last) (First) (Middle)
C/O REPLIGEN CORPORATION, 41 SEYON ST., BLDG 1, STE 100
3. Date of Earliest Transaction (MM/DD/YY)
07/13/2021
(Street)
WALTHAM, MA02453
4. If Amendment, Date Original Filed (MM/DD/YY)
07/15/2021
6. Individual or Joint/Group Filing (Check Applicable Line)
__ X __ Form filed by One Reporting Person
_____ Form filed by More than One Reporting Person
(City) (State) (Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 07/13/2021 M 2,929 A $ 41.19 118,982 D
Common Stock 07/13/2021 S( 1 ) 441 D $ 201.27 ( 2 ) 118,541 D
Common Stock 07/13/2021 S( 1 ) 630 D $ 202.29 ( 3 ) 117,911 D
Common Stock 07/13/2021 S( 1 ) 444 D $ 203.09 ( 4 ) 117,467 D
Common Stock 07/13/2021 S( 1 ) 5 D $ 204.02 ( 5 ) 117,462 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(MM/DD/YY)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) $ 41.19 07/13/2021 M 2,929 ( 6 ) 07/21/2025 Common Stock 2,929 $ 0 0 D
Reporting Owners
Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
DAWES KAREN A
C/O REPLIGEN CORPORATION
41 SEYON ST., BLDG 1, STE 100
WALTHAM, MA02453
X
Signatures
/s/ Kimberly Brown (Attorney in Fact) 07/22/2021
Signature of Reporting Person Date
Explanation of Responses:
( 1 )Sale of common stock was effected pursuant to a 10(b)5-1 trading plan adopted on June 8, 2021.
( 2 )$201.27 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $200.77 to $201.67, 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.
( 3 )$202.29 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $201.77 to $202.68, 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.
( 4 )$203.09 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $202.86 to $203.50, 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.
( 5 )$204.02 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $204.01 to $204.07, 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.
( 6 )This option is fully vested and exercisable.

Remarks:
This Form 4/A amends a Form 4 filed on 7/15/2021 to correct the presentation of the stock sold to reflect the multiple transactions to sell the total 1,520 shares.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
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