Sec Form 3 Filing - Harris Taylor C. @ PROCEPT BioRobotics Corp - 2021-09-14

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 Harris Taylor C. 2. Issuer Name and Ticker or Trading Symbol PROCEPT BioRobotics Corp [ PRCT] 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 PROCEPT BIOROBOTICS CORPORATION, 900 ISLAND DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 09/14/2021 (Street) REDWOOD CITY, CA94065 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

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 Series E Convertible Preferred Stock ( 1 ) ( 1 ) ( 1 ) Common Stock 31,215 I By The Harris Trust Dated 3/10/2016 Series G Convertible Preferred Stock ( 1 ) ( 1 ) ( 1 ) Common Stock 3,859 I By The Harris Trust Dated 3/10/2016 Stock Option (Right to Buy) $ 5.1775 ( 2 ) 12/16/2030 Common Stock 95,473 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Harris Taylor C. C/O PROCEPT BIOROBOTICS CORPORATION 900 ISLAND DRIVE REDWOOD CITY, CA94065 X Signatures /s/ Alaleh Nouri, Attorney-in-Fact for Taylor Harris 09/14/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Each share of Series A Preferred Stock , Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, Series F Preferred Stock and Series G Preferred Stock (collectively, the "Preferred Stock") will convert automatically into one share of Common Stock upon the closing of the Issuer's initial public offering. These shares have no expiration date. ( 2 )The Stock option was granted on December 16, 2020 and vests on each monthly anniversary of the grant date over a 4 year period, subject continued employment or service to the Issuer through the applicable vesting date.

Remarks: Exhibit List: Exhibit 24 - Power of Attorney

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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