First Manhattan’s Personalis PSNL Stock Holding History

First Manhattan’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	$3.09M	Hold	230,600	–	–	0.01%	298
2026 Q1	$1.47M	Sell	230,600 -143,222	-38%	-$1.21M	﹤0.01%	381
2025 Q4	$2.98M	Buy	+373,822	New	+$3.27M	0.01%	293

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

First Manhattan's PSNL Position: Q2 2026 in Review

First Manhattan held its Personalis (PSNL) position steady in Q2 2026 at 230,600 shares worth $3.09M. The position accounts for 0.01% of the portfolio, ranked #298.

First Manhattan first reported a position in PSNL in Q4 2025 and has held it in 3 quarters since. 159 funds tracked by Wall St. Rank hold PSNL as of Q2 2026.

First Manhattan held 230,600 shares of Personalis worth $3.09M as of Q2 2026.
First Manhattan left its Personalis share count unchanged in Q2 2026.
Personalis made up 0.01% of First Manhattan's portfolio in Q2 2026, its #298 holding.
First Manhattan first reported a position in Personalis in Q4 2025 and has held it in 3 quarters since.
159 funds tracked by Wall St. Rank held Personalis as of Q2 2026.

Based on First Manhattan's 13F filing for Q2 2026, filed 14 Aug 2026.