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Lightspeed Management Company’s Personalis PSNL Stock Holding History

Lightspeed Management Company’s Portfolio PSNL Stock Details PSNL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$52M Hold
8,160,734
– – 5.26% 3
2025
Q4 		$65M Hold
8,160,734
– – 4.65% 5
2025
Q3 		$53.2M Hold
8,160,734
– – 16.53% 3
2025
Q2 		$53.5M Hold
8,160,734
– – 22.42% 3
2025
Q1 		$28.6M Hold
8,160,734
– – 20.99% 2
2024
Q4 		$47.2M Buy
+8,160,734
New +$37.7M 16.63% 3

Other funds holding PSNL

MC
Merck & Co Kenilworth, New Jersey $349M AUM 146.07% 1-Year Est. Return
AIM
ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $61.9B AUM 29.81% 1-Year Est. Return
DTC
Deep Track Capital Greenwich, Connecticut $6.12B AUM 144% 1-Year Est. Return
ACM
AIGH Capital Management Baltimore, Maryland $733M AUM 327.32% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
KCM
Kennedy Capital Management St Louis, Missouri $4.72B AUM 36.69% 1-Year Est. Return

Lightspeed Management Company's PSNL Position: Q1 2026 in Review

Lightspeed Management Company held its Personalis (PSNL) position steady in Q1 2026 at 8,160,734 shares worth $52M. The position accounts for 5.26% of the portfolio, ranked #3.

Lightspeed Management Company first reported a position in PSNL in Q4 2024 and has held it in 6 quarters since. The position peaked at $65M in Q4 2025. 140 funds tracked by Wall St. Rank hold PSNL as of Q1 2026.

  • Lightspeed Management Company held 8,160,734 shares of Personalis worth $52M as of Q1 2026.
  • Lightspeed Management Company left its Personalis share count unchanged in Q1 2026.
  • Personalis made up 5.26% of Lightspeed Management Company's portfolio in Q1 2026, its #3 holding.
  • Lightspeed Management Company first reported a position in Personalis in Q4 2024 and has held it in 6 quarters since.
  • Lightspeed Management Company's Personalis position peaked at $65M in Q4 2025.
  • 140 funds tracked by Wall St. Rank held Personalis as of Q1 2026.

Based on Lightspeed Management Company's 13F filing for Q1 2026, filed 15 May 2026.