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Quantbot Technologies’s Castle Biosciences CSTL Stock Holding History

Quantbot Technologies’s Portfolio CSTL Stock Details CSTL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$542K Buy
22,060
+22,013
+46,836% +$721K 0.02% 825
2025
Q4 		$1.83K Buy
+47
New +$1.51K ﹤0.01% 1638
2025
Q2 		– Sell
-15,287
Closed -$306K – 1671
2025
Q1 		$306K Buy
+15,287
New +$378K 0.01% 1029
2023
Q3 		– Sell
-12,941
Closed -$178K – 1606
2023
Q2 		$178K Buy
12,941
+10,396
+408% +$211K 0.01% 1008
2023
Q1 		$57.8K Sell
2,545
-5,329
-68% -$130K ﹤0.01% 1224
2022
Q4 		$185K Sell
7,874
-4,869
-38% -$113K 0.01% 923
2022
Q3 		$332K Sell
12,743
-2,818
-18% -$79K 0.03% 716
2022
Q2 		$341K Buy
+15,561
New +$362K 0.03% 727
2022
Q1 		– Sell
-3,081
Closed -$132K – 1704
2021
Q4 		$132K Sell
3,081
-6,517
-68% -$341K 0.01% 820
2021
Q3 		$638K Buy
9,598
+5,617
+141% +$395K 0.05% 517
2021
Q2 		$291K Buy
+3,981
New +$263K 0.02% 670
2020
Q4 		– Sell
-200
Closed -$10K – 1359
2020
Q3 		$10K Buy
+200
New +$8.9K ﹤0.01% 1114

Other funds holding CSTL

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return
PCM
Portolan Capital Management Boston, Massachusetts $1.88B AUM 115.74% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
SPPAM
Summit Partners Public Asset Management Boston, Massachusetts $3.72B AUM 162.29% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Allianz Asset Management
Allianz Asset Management Munich, Germany $95.4B AUM 38.74% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Quantbot Technologies's CSTL Position: Q1 2026 in Review

Quantbot Technologies increased its Castle Biosciences (CSTL) stake by 46,836% in Q1 2026, buying an estimated $721K and bringing the position to 22,060 shares worth $542K. The position accounts for 0.02% of the portfolio, ranked #825.

Quantbot Technologies first reported a position in CSTL in Q3 2020 and has held it in 12 quarters since. The position peaked at $638K in Q3 2021. 186 funds tracked by Wall St. Rank hold CSTL as of Q1 2026.

  • Quantbot Technologies held 22,060 shares of Castle Biosciences worth $542K as of Q1 2026.
  • Quantbot Technologies bought 22,013 Castle Biosciences shares in Q1 2026, an estimated $721K.
  • Castle Biosciences made up 0.02% of Quantbot Technologies's portfolio in Q1 2026, its #825 holding.
  • Quantbot Technologies first reported a position in Castle Biosciences in Q3 2020 and has held it in 12 quarters since.
  • Quantbot Technologies's Castle Biosciences position peaked at $638K in Q3 2021.
  • 186 funds tracked by Wall St. Rank held Castle Biosciences as of Q1 2026.

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