Atom Investors’s Personalis PSNL Stock Holding History

Atom Investors’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 Q2	$546K	Buy	+40,763	New	+$332K	0.05%	539
2025 Q4	–	Sell	-18,043	Closed	-$118K	–	762
2025 Q3	$118K	Buy	+18,043	New	+$103K	0.01%	545
2019 Q3	–	Sell	-79,496	Closed	-$2.16M	–	400
2019 Q2	$2.16M	Buy	+79,496	New	+$2.25M	0.14%	179

Other funds holding PSNL

Merck & Co Rahway, New Jersey $526M AUM 175.27% 1-Year Est. Return

AIM

ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

LMC

Lightspeed Management Company Menlo Park, California $2.4B AUM 7.07% 1-Year Est. Return

Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return

DTC

Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return

Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Casdin Capital New York $2B AUM 147.21% 1-Year Est. Return

KCM

Kennedy Capital Management St Louis, Missouri $5.65B AUM 61.31% 1-Year Est. Return

Atom Investors's PSNL Position: Q2 2026 in Review

Atom Investors opened a new position in Personalis (PSNL) in Q2 2026: 40,763 shares worth $546K. The stake represents 0.05% of the portfolio and ranks #539 among its holdings. This is a return to the name: Atom Investors previously reported a position in PSNL as recently as Q3 2025.

Atom Investors first reported a position in PSNL in Q2 2019 and has held it in 3 quarters since. The position peaked at $2.16M in Q2 2019. 158 funds tracked by Wall St. Rank hold PSNL as of Q2 2026.

Atom Investors held 40,763 shares of Personalis worth $546K as of Q2 2026.
Personalis was a new Atom Investors position in Q2 2026.
Personalis made up 0.05% of Atom Investors's portfolio in Q2 2026, its #539 holding.
Atom Investors first reported a position in Personalis in Q2 2019 and has held it in 3 quarters since.
Atom Investors's Personalis position peaked at $2.16M in Q2 2019.
158 funds tracked by Wall St. Rank held Personalis as of Q2 2026.

Based on Atom Investors's 13F filing for Q2 2026, filed 14 Aug 2026.