If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. Checkbox not checked

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




schemaVersion:


SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D


 
Lightspeed Venture Partners Select IV, L.P.
 
Signature:/s/ Ravi Mhatre
Name/Title:See Note 1
Date:06/10/2026
 
Lightspeed General Partner Select IV, L.P.
 
Signature:/s/ Ravi Mhatre
Name/Title:By Lightspeed Ultimate General Partner Select IV, L.L.C., its General Partner, By Ravi Mhatre, Managing Member
Date:06/10/2026
 
Lightspeed Ultimate General Partner Select IV, L.L.C.
 
Signature:/s/ Ravi Mhatre
Name/Title:By Ravi Mhatre, Managing Member
Date:06/10/2026
 
Lightspeed Venture Partners Select, L.P.
 
Signature:/s/ Ravi Mhatre
Name/Title:See Note 2
Date:06/10/2026
 
Lightspeed General Partner Select, L.P.
 
Signature:/s/ Ravi Mhatre
Name/Title:By Lightspeed Ultimate General Partner Select, Ltd., its General Partner, By Ravi Mhatre, Director
Date:06/10/2026
 
Lightspeed Ultimate General Partner Select, Ltd.
 
Signature:/s/ Ravi Mhatre
Name/Title:By Ravi Mhatre, Director
Date:06/10/2026
 
Lightspeed Venture Partners VIII, L.P.
 
Signature:/s/ Ravi Mhatre
Name/Title:See Note 3
Date:06/10/2026
 
Lightspeed General Partner VIII, L.P.
 
Signature:/s/ Ravi Mhatre
Name/Title:By Lightspeed Ultimate General Partner VIII, Ltd., its General Partner, By Ravi Mhatre, Director
Date:06/10/2026
 
Lightspeed Ultimate General Partner VIII, Ltd.
 
Signature:/s/ Ravi Mhatre
Name/Title:By Ravi Mhatre, Director
Date:06/10/2026
 
LSVP VIII Trust
 
Signature:/s/ Ravi Mhatre
Name/Title:By Lightspeed Trustee VIII, LLC, its Trustee, By Ravi Mhatre, Member
Date:06/10/2026
 
Lightspeed Trustee VIII, LLC
 
Signature:/s/ Ravi Mhatre
Name/Title:By Ravi Mhatre, Member
Date:06/10/2026
Comments accompanying signature:
Note 1 By Lightspeed General Partner Select IV, L.P., its General Partner, By Lightspeed Ultimate General Partner Select IV, L.L.C., its General Partner, By Ravi Mhatre, Managing Member Note 2 By Lightspeed General Partner Select, L.P., its General Partner, By Lightspeed Ultimate General Partner Select, Ltd., its General Partner, By Ravi Mhatre, Director Note 3 By Lightspeed General Partner VIII, L.P., its General Partner, By Lightspeed Ultimate General Partner VIII, Ltd., its General Partner, By Ravi Mhatre, Director
ex-99-06112026_120658.htm

EXHIBIT 99.1


JOINT FILING AGREEMENT


We, the undersigned, hereby express our agreement that the attached Schedule 13D (or any amendments thereto) relating to the common stock of Personalis, Inc. on behalf of each of us.


Dated:  June 10, 2026


Lightspeed Venture Partners Select, L.P.


By:

Lightspeed General Partner Select, L.P.

Its

General Partner


By:

Lightspeed Ultimate General Partner Select, Ltd.

Its

General Partner


By:

/s/ Ravi Mhatre

Name: Ravi Mhatre

Title: Director


Lightspeed General Partner Select, L.P.


By:

Lightspeed Ultimate General Partner Select, Ltd.

Its

General Partner


By:

/s/ Ravi Mhatre

Name: Ravi Mhatre

Title: Director


Lightspeed Ultimate General Partner Select, Ltd.


By:

/s/ Ravi Mhatre

Name: Ravi Mhatre

Title: Director


Lightspeed Venture Partners VIII, L.P.


By:

Lightspeed General Partner VIII, L.P.

Its

General Partner


By:

Lightspeed Ultimate General Partner VIII, Ltd.

Its

General Partner


By:

/s/ Ravi Mhatre

Name: Ravi Mhatre

Title: Director


LSVP VIII Trust


By:

Lightspeed Trustee VIII, LLC

its

Trustee


By:

/s/ Ravi Mhatre

Name: Ravi Mhatre

Title: Member


Lightspeed Venture Partners Select IV, L.P.


By:

Lightspeed General Partner Select IV, L.P.

Its

General Partner


By:

Lightspeed Ultimate General Partner Select IV, L.L.C.

Its

General Partner


By:

/s/ Ravi Mhatre

Name: Ravi Mhatre

Title: Managing Member


Lightspeed General Partner Select IV, L.P.


By:

Lightspeed Ultimate General Partner Select IV, L.L.C.

Its

General Partner


By:

/s/ Ravi Mhatre

Name: Ravi Mhatre

Title: Managing Member


Lightspeed Ultimate General Partner Select IV, L.L.C.


By:

/s/ Ravi Mhatre

Name: Ravi Mhatre

Title: Managing Member


Lightspeed General Partner VIII, L.P.


By:

Lightspeed Ultimate General Partner VIII, Ltd.

Its

General Partner


By:

/s/ Ravi Mhatre

Name: Ravi Mhatre

Title: Director


Lightspeed Ultimate General Partner VIII, Ltd.


By:

/s/ Ravi Mhatre

Name: Ravi Mhatre

Title: Director


Lightspeed Trustee VIII, LLC


By:

/s/ Ravi Mhatre

Name: Ravi Mhatre

Title: Member



ex-99-06112026_120601.htm

EXHIBIT 99.2


SCHEDULE A


GENERAL PARTNERS, CONTROL PERSONS, DIRECTORS AND EXECUTIVE OFFICERS OF CERTAIN REPORTING PERSONS



Name

Business Address

Principal Occupation

Citizenship

Barry Eggers

2200 Sand Hill Road

Menlo Park, CA 94025


Director of Lightspeed Ultimate General Partner VIII, Ltd. and Lightspeed Ultimate General Partner Select, Ltd.


United States

Arif Janmohamed

2200 Sand Hill Road

Menlo Park, CA 94025


Managing Member of Lightspeed Ultimate General Partner Select IV, L.L.C.

United States

Ravi Mhatre

2200 Sand Hill Road

Menlo Park, CA 94025

Director of Lightspeed Ultimate General Partner VIII, Ltd. and Lightspeed Ultimate General Partner Select, Ltd.


Managing Member of Lightspeed Ultimate General Partner Select IV, L.L.C.


United States

Peter Y. Nieh

2200 Sand Hill Road

Menlo Park, CA 94025


Director of Lightspeed Ultimate General Partner VIII, Ltd. and Lightspeed Ultimate General Partner Select, Ltd.


United States