Sec Form 3 Filing - Zhang Feng @ Calyxt, Inc. - 2017-07-20

FORM 3 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 Zhang Feng 2. Issuer Name and Ticker or Trading Symbol Calyxt, Inc. [ CLXT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Operations Officer (Last) (First) (Middle) 600 COUNTY ROAD D WEST, SUITE 8 3. Date of Earliest Transaction (MM/DD/YY) 07/20/2017 (Street) NEW BRIGHTON, MN55112 4. If Amendment, Date Original Filed (MM/DD/YY) 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 Restricted Stock Units ( 1 ) 29,400 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) $ 3.71 ( 2 ) 12/03/2024 Common Stock 36,750 D Stock Option (Right to Buy) $ 21.83 ( 3 ) 09/09/2025 Common Stock 14,210 D Stock Option (Right to Buy) $ 3.59 ( 4 ) 04/07/2026 Common Stock 171,500 D Stock Option (Right to Buy) $ 13.29 ( 5 ) 06/14/2027 Common Stock 44,100 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Zhang Feng 600 COUNTY ROAD D WEST SUITE 8 NEW BRIGHTON, MN55112 Chief Operations Officer Signatures /s/ Joseph B. Saluri 07/20/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The award of restricted stock units with respect to Calyxt, Inc. common stock was granted on June 14, 2017 and vests 15% on the first anniversary of the grant date and 15% on the second anniversary of the grant date, with the remainder vesting quarterly in equal installments over the following 42 months. ( 2 )The stock option to purchase shares of Calyxt, Inc. common stock ("Stock Option") was granted on December 3, 2014, and vests 20% on January 3, 2015 and 20% on April 10, 2015, with the remainder vesting quarterly in equal installments over the following three years (or with an additional 25% vesting immediately if Calyxt, Inc. undergoes a change in control, liquidation, dissolution or initial public offering and the remainder vesting quarterly thereafter). ( 3 )The Stock Option was granted on September 9, 2015 and vests 20% on the grant date and 20% on the first anniversary of the grant date, with the remainder vesting quarterly in equal installments over the following three years (or with an additional 25% vesting immediately if Calyxt, Inc. undergoes a change in control, liquidation, dissolution or initial public offering and the remainder vesting quarterly thereafter). ( 4 )The Stock Option was granted on April 7, 2016 and vests 20% on the grant date and 10% on the first anniversary of the grant date, with the remainder vesting quarterly in equal installments over the following 42 months (or with an additional 25% vesting immediately if Calyxt, Inc. undergoes a change in control, liquidation, dissolution or initial public offering and the remainder vesting quarterly thereafter). ( 5 )The Stock Option was granted on June 14, 2017 and vests 15% on the first anniversary of the grant date and 15% on the second anniversary of the grant date, with the remainder vesting quarterly in equal installments over the following 42 months.

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).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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