Lightspeed Venture Partners Select IV, L.P. - 08 Jun 2026 SCHEDULE 13D/A Report for Personalis, Inc. Common Stock, par value $0.0001 per share (PSNL)

Filing manager
Lightspeed Venture Partners Select IV, L.P.
Reporting owner
Lightspeed Venture Partners Select IV, L.P.
Security
Personalis, Inc. Common Stock, par value $0.0001 per share
Beneficially owned shares
2,084,240 shares
Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13D/A

Active or control-oriented beneficial ownership filing.

Ownership

2%

Beneficial ownership of this reported class.

Shares

2,084,240 shares

Shares beneficially owned as disclosed.

Event date

08 Jun 2026

Date tied to the ownership event or amendment.

Accepted by SEC

10 Jun 2026

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Class ownership
2%
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
PSNL
Shares outstanding
104,212,000 shares
Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
SCHEDULE 13D/A
Accepted by SEC
10 Jun 2026, 20:24:00 UTC
Event date
08 Jun 2026
Source filing
View source filing

Key filing fact

Lightspeed Venture Partners Select IV, L.P. disclosed 2% ownership in Personalis, Inc. Common Stock, par value $0.0001 per share (PSNL) on 08 Jun 2026.

Key facts

  • Lightspeed Venture Partners Select IV, L.P. filed SCHEDULE 13D/A for Personalis, Inc. Common Stock, par value $0.0001 per share (PSNL).
  • Disclosed ownership: 2%.
  • Date of event: 08 Jun 2026.

Change

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 10 Jun 2026, 20:24.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (11)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
Lightspeed Venture Partners Select IV, L.P. 2% 2,084,240 2,084,240 /s/ Ravi Mhatre See Note 1 0001805207
Lightspeed General Partner Select IV, L.P. 2% 2,084,240 0 2,084,240 /s/ Ravi Mhatre By Lightspeed Ultimate General Partner Select IV, L.L.C., its General Partner, By Ravi Mhatre, Managing Member 0001813995
Lightspeed Ultimate General Partner Select IV, L.L.C. 2% 2,084,240 0 2,084,240 /s/ Ravi Mhatre By Ravi Mhatre, Managing Member 0001813999
Lightspeed Venture Partners Select, L.P. 1.9% 1,958,726 0 1,958,726 /s/ Ravi Mhatre See Note 2 0001602575
Lightspeed General Partner Select, L.P. 1.9% 1,958,726 0 1,958,726 /s/ Ravi Mhatre By Lightspeed Ultimate General Partner Select, Ltd., its General Partner, By Ravi Mhatre, Director 0001700551
Lightspeed Ultimate General Partner Select, Ltd. 1.9% 1,958,726 0 1,958,726 /s/ Ravi Mhatre By Ravi Mhatre, Director 0001700544
Lightspeed Venture Partners VIII, L.P. 2% 2,058,884 0 2,058,884 /s/ Ravi Mhatre See Note 3 0001435573
Lightspeed General Partner VIII, L.P. 2% 2,058,884 0 2,058,884 /s/ Ravi Mhatre By Lightspeed Ultimate General Partner VIII, Ltd., its General Partner, By Ravi Mhatre, Director 0001522569
Lightspeed Ultimate General Partner VIII, Ltd. 2% 2,058,884 0 2,058,884 /s/ Ravi Mhatre By Ravi Mhatre, Director 0001522568
LSVP VIII Trust 2% 2,058,884 0 2,058,884 /s/ Ravi Mhatre By Lightspeed Trustee VIII, LLC, its Trustee, By Ravi Mhatre, Member
Lightspeed Trustee VIII, LLC 2% 2,058,884 0 2,058,884 /s/ Ravi Mhatre By Ravi Mhatre, Member
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