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John Overdeck’s Personalis PSNL Stock Holding History

John Overdeck’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 		$767K Sell
57,258
-33,453
-37% -$272K ﹤0.01% 3823
2026
Q1 		$578K Buy
90,711
+58,235
+179% +$492K ﹤0.01% 3644
2025
Q4 		$259K Sell
32,476
-24,282
-43% -$212K ﹤0.01% 3650
2025
Q3 		$370K Sell
56,758
-135
-0.2% -$768 ﹤0.01% 3123
2025
Q2 		$373K Sell
56,893
-53,313
-48% -$247K ﹤0.01% 2706
2025
Q1 		$387K Sell
110,206
-35,456
-24% -$168K ﹤0.01% 2621
2024
Q4 		$842K Buy
145,662
+67,403
+86% +$311K ﹤0.01% 2283
2024
Q3 		$421K Buy
+78,259
New +$322K ﹤0.01% 2544
2023
Q4 		– Sell
-21,600
Closed -$26.1K – 3331
2023
Q3 		$26.1K Sell
21,600
-26,800
-55% -$47.9K ﹤0.01% 2860
2023
Q2 		$91K Sell
48,400
-10,200
-17% -$23.1K ﹤0.01% 2767
2023
Q1 		$162K Buy
58,600
+7,635
+15% +$21.5K ﹤0.01% 2600
2022
Q4 		$101K Sell
50,965
-54,045
-51% -$136K ﹤0.01% 2507
2022
Q3 		$312K Sell
105,010
-286,334
-73% -$1.09M ﹤0.01% 1959
2022
Q2 		$1.35M Buy
391,344
+135,090
+53% +$688K ﹤0.01% 1400
2022
Q1 		$2.1M Sell
256,254
-132,503
-34% -$1.37M 0.01% 1331
2021
Q4 		$5.55M Sell
388,757
-31,498
-7% -$525K 0.01% 1134
2021
Q3 		$8.09M Sell
420,255
-15,376
-4% -$321K 0.02% 877
2021
Q2 		$11M Sell
435,631
-316,178
-42% -$7.24M 0.03% 738
2021
Q1 		$18.5M Buy
751,809
+446,089
+146% +$15.3M 0.05% 468
2020
Q4 		$11.2M Buy
305,720
+107,503
+54% +$3.25M 0.03% 557
2020
Q3 		$4.29M Buy
+198,217
New +$3.94M 0.02% 869

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

John Overdeck's PSNL Position: Q2 2026 in Review

John Overdeck reduced its Personalis (PSNL) stake by 37% in Q2 2026, selling an estimated $272K and leaving 57,258 shares worth $767K. The position accounts for ﹤0.01% of the portfolio, ranked #3823.

John Overdeck first reported a position in PSNL in Q3 2020 and has held it in 21 quarters since. The position peaked at $18.5M in Q1 2021. 158 funds tracked by Wall St. Rank hold PSNL as of Q2 2026.

  • John Overdeck held 57,258 shares of Personalis worth $767K as of Q2 2026.
  • John Overdeck sold 33,453 Personalis shares in Q2 2026, an estimated $272K.
  • Personalis made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #3823 holding.
  • John Overdeck first reported a position in Personalis in Q3 2020 and has held it in 21 quarters since.
  • John Overdeck's Personalis position peaked at $18.5M in Q1 2021.
  • 158 funds tracked by Wall St. Rank held Personalis as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.