Sec Form 4 Filing - Ninth MDV Partners, L.L.C. @ Personalis, Inc. - 2019-06-24

FORM 4 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 Ninth MDV Partners, L.L.C. 2. Issuer Name and Ticker or Trading Symbol Personalis, Inc. [ PSNL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 777 MARINERS ISLAND BOULEVARD, SUITE 550 3. Date of Earliest Transaction (MM/DD/YY) 06/24/2019 (Street) SAN MATEO, CA94404 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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 06/24/2019 C 2,288,805 A 2,288,805 I See Footnote ( 2 ) Common Stock 06/24/2019 C 107,812 A 2,396,617 I See Footnote ( 2 ) Common Stock 06/24/2019 C 61,592 A 2,458,209 I See Footnote ( 2 ) Common Stock 06/24/2019 C 18,739 A 18,739 I See Footnote ( 3 ) Common Stock 06/24/2019 C 882 A 19,621 I See Footnote ( 3 ) Common Stock 06/24/2019 C 504 A 20,125 I See Footnote ( 3 ) Common Stock 06/24/2019 C 127,504 A 127,504 I See Footnote ( 4 )

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 A Convertible Preferred Stock ( 1 ) 06/24/2019 C 2,288,805 ( 1 ) ( 1 ) Common Stock 2,288,805 $ 0 0 I See Footnote ( 2 ) Series A Convertible Preferred Stock ( 1 ) 06/24/2019 C 18,739 ( 1 ) ( 1 ) Common Stock 18,739 $ 0 0 I See Footnote ( 3 ) Series B Convertible Preferred Stock ( 1 ) 06/24/2019 C 107,812 ( 1 ) ( 1 ) Common Stock 107,812 $ 0 0 I See Footnote ( 2 ) Series B Convertible Preferred Stock ( 1 ) 06/24/2019 C 882 ( 1 ) ( 1 ) Common Stock 882 $ 0 0 I See Footnote ( 3 ) Series C Convertible Preferred Stock ( 1 ) 06/24/2019 C 61,592 ( 1 ) ( 1 ) Common Stock 61,592 $ 0 0 I See Footnote ( 2 ) Series C Convertible Preferred Stock ( 1 ) 06/24/2019 C 504 ( 1 ) ( 1 ) Common Stock 504 $ 0 0 I See Footnote ( 3 ) Series C Convertible Preferred Stock ( 1 ) 06/24/2019 C 127,504 ( 1 ) ( 1 ) Common Stock 127,504 $ 0 0 I See Footnote ( 4 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Ninth MDV Partners, L.L.C. 777 MARINERS ISLAND BOULEVARD SUITE 550 SAN MATEO, CA94404 X MDV IX LP 777 MARINERS ISLAND BOULEVARD SUITE 550 SAN MATEO, CA X MDV ENF IX LP 777 MARINERS ISLAND BOULEVARD SUITE 550 SAN MATEO, CA94404 X FEIBER JONATHAN D 777 MARINERS ISLAND BOULEVARD SUITE 550 SAN MATEO, CA94404 X Ericson William W. 777 MARINERS ISLAND BOULEVARD SUITE 550 SAN MATEO, CA94404 X Signatures /s/ Ninth MDV Partners, L.L.C., By: Brett Teele, Authorized Signatory 06/26/2019 Signature of Reporting Person Date /s/ MDV IX, L.P., By: Ninth MDV Partners, L.L.C., its General Partner, By: Brett Teele, Authorized Signatory 06/26/2019 Signature of Reporting Person Date /s/ MDV ENF IX, L.P., By: Ninth MDV Partners, L.L.C., its General Partner, By: Brett Teele, Authorized Signatory 06/26/2019 Signature of Reporting Person Date /s/ Jonathan Feiber 06/26/2019 Signature of Reporting Person Date /s/ William Ericson 06/26/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Series A Convertible Preferred Stock, Series B Convertible Preferred Stock and Series C Convertible Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately upon the closing of the Issuer's initial public offering and have no expiration date. ( 2 )These shares are held directly by MDV IX, L.P. ("MDV IX"). Ninth MDV Partners, L.L.C. ("Ninth MDV") is the general partner of MDV IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by MDV IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein. ( 3 )These shares are held directly by MDV ENF IX, L.P. ("ENF IX"). Ninth MDV is the general partner of ENF IX. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by ENF IX. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein. ( 4 )These shares are held directly by MDV IX, L.P., as nominee for MDV IX, L.P. and MDV ENF IX, L.P. ("IX Funds"). Ninth MDV is the general partner of IX Funds. Jonathan Feiber and William Ericson are the managing members of Ninth MDV and either are deemed to have sole voting and dispositive power with respect to the shares held by IX Funds. Each disclaims beneficial ownership of these securities except to the extent of his or its respective pecuniary interest therein.

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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