PCM
PSNL icon

Portolan Capital Management’s Personalis PSNL Stock Holding History

Portolan Capital Management’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 		$4.69M Buy
736,713
+357,516
+94% +$3.02M 0.25% 101
2025
Q4 		$3.02M Buy
+379,197
New +$3.32M 0.16% 126

Other funds holding PSNL

MC
Merck & Co Kenilworth, New Jersey $349M AUM 146.07% 1-Year Est. Return
LMC
Lightspeed Management Company Menlo Park, California $988M AUM 7.5% 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

Portolan Capital Management's PSNL Position: Q1 2026 in Review

Portolan Capital Management increased its Personalis (PSNL) stake by 94% in Q1 2026, buying an estimated $3.02M and bringing the position to 736,713 shares worth $4.69M. The position accounts for 0.25% of the portfolio, ranked #101.

Portolan Capital Management first reported a position in PSNL in Q4 2025 and has held it in 2 quarters since. 140 funds tracked by Wall St. Rank hold PSNL as of Q1 2026.

  • Portolan Capital Management held 736,713 shares of Personalis worth $4.69M as of Q1 2026.
  • Portolan Capital Management bought 357,516 Personalis shares in Q1 2026, an estimated $3.02M.
  • Personalis made up 0.25% of Portolan Capital Management's portfolio in Q1 2026, its #101 holding.
  • Portolan Capital Management first reported a position in Personalis in Q4 2025 and has held it in 2 quarters since.
  • 140 funds tracked by Wall St. Rank held Personalis as of Q1 2026.

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