BlackRock
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BlackRock’s Personalis PSNL Stock Holding History

BlackRock’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 		$34.3M Buy
5,389,885
+70,377
+1% +$594K ﹤0.01% 2753
2025
Q4 		$42.3M Sell
5,319,508
-325,291
-6% -$2.85M ﹤0.01% 2635
2025
Q3 		$36.8M Buy
5,644,799
+440,806
+8% +$2.51M ﹤0.01% 2704
2025
Q2 		$34.1M Buy
5,203,993
+2,205,471
+74% +$10.2M ﹤0.01% 2701
2025
Q1 		$10.5M Buy
2,998,522
+43,352
+1% +$206K ﹤0.01% 3290
2024
Q4 		$17.1M Buy
2,955,170
+39,487
+1% +$182K ﹤0.01% 3141
2024
Q3 		$15.7M Sell
2,915,683
-376,430
-11% -$1.55M ﹤0.01% 3179
2024
Q2 		$3.85M Buy
3,292,113
+11,392
+0.3% +$15.6K ﹤0.01% 3783
2024
Q1 		$4.89M Sell
3,280,721
-34,547
-1% -$53.5K ﹤0.01% 3681
2023
Q4 		$6.96M Sell
3,315,268
-14,610
-0.4% -$18.9K ﹤0.01% 3557
2023
Q3 		$4.03M Sell
3,329,878
-65,048
-2% -$116K ﹤0.01% 3736
2023
Q2 		$6.38M Sell
3,394,926
-15,889
-0.5% -$35.9K ﹤0.01% 3620
2023
Q1 		$9.41M Sell
3,410,815
-148,098
-4% -$417K ﹤0.01% 3346
2022
Q4 		$7.05M Buy
3,558,913
+273,368
+8% +$688K ﹤0.01% 3556
2022
Q3 		$9.76M Buy
3,285,545
+656,235
+25% +$2.5M ﹤0.01% 3439
2022
Q2 		$9.07M Sell
2,629,310
-1,909,245
-42% -$9.72M ﹤0.01% 3557
2022
Q1 		$37.2M Buy
4,538,555
+149,222
+3% +$1.54M ﹤0.01% 2755
2021
Q4 		$62.6M Buy
4,389,333
+857,372
+24% +$14.3M ﹤0.01% 2506
2021
Q3 		$68M Buy
3,531,961
+45,996
+1% +$962K ﹤0.01% 2458
2021
Q2 		$88.2M Buy
3,485,965
+881,659
+34% +$20.2M ﹤0.01% 2334
2021
Q1 		$64.1M Buy
2,604,306
+294,905
+13% +$10.1M ﹤0.01% 2463
2020
Q4 		$84.5M Buy
2,309,401
+221,118
+11% +$6.68M ﹤0.01% 2172
2020
Q3 		$45.3M Buy
2,088,283
+436,708
+26% +$8.68M ﹤0.01% 2363
2020
Q2 		$21.4M Buy
1,651,575
+138,771
+9% +$1.54M ﹤0.01% 2758
2020
Q1 		$12.2M Buy
1,512,804
+477,674
+46% +$4.44M ﹤0.01% 2889
2019
Q4 		$11.3M Buy
1,035,130
+423,002
+69% +$4.4M ﹤0.01% 3187
2019
Q3 		$8.98M Buy
612,128
+574,478
+1,526% +$10.9M ﹤0.01% 3262
2019
Q2 		$1.02M Buy
+37,650
New +$1.06M ﹤0.01% 4003

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
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
KCM
Kennedy Capital Management St Louis, Missouri $4.72B AUM 36.69% 1-Year Est. Return

BlackRock's PSNL Position: Q1 2026 in Review

BlackRock increased its Personalis (PSNL) stake by 1.3% in Q1 2026, buying an estimated $594K and bringing the position to 5,389,885 shares worth $34.3M. The position accounts for ﹤0.01% of the portfolio, ranked #2753.

BlackRock first reported a position in PSNL in Q2 2019 and has held it in 28 quarters since. The position peaked at $88.2M in Q2 2021. 140 funds tracked by Wall St. Rank hold PSNL as of Q1 2026.

  • BlackRock held 5,389,885 shares of Personalis worth $34.3M as of Q1 2026.
  • BlackRock bought 70,377 Personalis shares in Q1 2026, an estimated $594K.
  • Personalis made up ﹤0.01% of BlackRock's portfolio in Q1 2026, its #2753 holding.
  • BlackRock first reported a position in Personalis in Q2 2019 and has held it in 28 quarters since.
  • BlackRock's Personalis position peaked at $88.2M in Q2 2021.
  • 140 funds tracked by Wall St. Rank held Personalis as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.