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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
Q2 		– Sell
-736,713
Closed -$4.69M – 167
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 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
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
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
Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
CC
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

Portolan Capital Management's PSNL Position: Q2 2026 in Review

Portolan Capital Management sold out of Personalis (PSNL) in Q2 2026, closing a stake of 736,713 shares — an estimated $4.69M sold.

Portolan Capital Management first reported a position in PSNL in Q4 2025 and held it in 2 quarters. The position peaked at $4.69M in Q1 2026. 159 funds tracked by Wall St. Rank hold PSNL as of Q2 2026.

  • Portolan Capital Management reported no remaining Personalis position as of Q2 2026 after selling out during the quarter.
  • Portolan Capital Management sold 736,713 Personalis shares in Q2 2026, an estimated $4.69M.
  • Portolan Capital Management first reported a position in Personalis in Q4 2025 and held it in 2 quarters.
  • Portolan Capital Management's Personalis position peaked at $4.69M in Q1 2026.
  • 159 funds tracked by Wall St. Rank held Personalis as of Q2 2026.

Based on Portolan Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.