HRT Financial
CSTL icon

HRT Financial’s Castle Biosciences CSTL Stock Holding History

HRT Financial’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
Q2 		$2.76M Buy
115,853
+99,995
+631% +$2.23M 0.01% 1514
2026
Q1 		$389K Sell
15,858
-31,796
-67% -$1.04M ﹤0.01% 2699
2025
Q4 		$1.85M Buy
47,654
+415
+0.9% +$13.4K 0.01% 1355
2025
Q3 		$1.08M Buy
47,239
+28,413
+151% +$577K ﹤0.01% 1479
2025
Q2 		$384K Sell
18,826
-9,459
-33% -$175K ﹤0.01% 1730
2025
Q1 		$566K Buy
28,285
+15,916
+129% +$394K ﹤0.01% 1399
2024
Q4 		$329K Sell
12,369
-5,492
-31% -$167K ﹤0.01% 1668
2024
Q3 		$509K Buy
+17,861
New +$455K ﹤0.01% 1581
2024
Q2 		– Sell
-15,011
Closed -$332K – 2362
2024
Q1 		$332K Buy
+15,011
New +$327K ﹤0.01% 1495
2023
Q2 		– Sell
-15,008
Closed -$340K – 2591
2023
Q1 		$340K Buy
+15,008
New +$367K ﹤0.01% 1634
2022
Q4 		– Sell
-23,949
Closed -$624K – 2565
2022
Q3 		$624K Buy
+23,949
New +$671K 0.01% 1299
2021
Q4 		– Sell
-4,725
Closed -$314K – 3324
2021
Q3 		$314K Buy
+4,725
New +$332K ﹤0.01% 2374
2021
Q1 		– Sell
-8,821
Closed -$592K – 2754
2020
Q4 		$592K Buy
+8,821
New +$478K 0.01% 933

Other funds holding CSTL

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RTW Investments
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Allianz Asset Management
Allianz Asset Management Munich, Germany $123B AUM 45.23% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Summit Partners Public Asset Management
Summit Partners Public Asset Management Boston, Massachusetts $5.69B AUM 259.25% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

HRT Financial's CSTL Position: Q2 2026 in Review

HRT Financial increased its Castle Biosciences (CSTL) stake by 631% in Q2 2026, buying an estimated $2.23M and bringing the position to 115,853 shares worth $2.76M. The position accounts for 0.01% of the portfolio, ranked #1514.

HRT Financial first reported a position in CSTL in Q4 2020 and has held it in 13 quarters since. 176 funds tracked by Wall St. Rank hold CSTL as of Q2 2026.

  • HRT Financial held 115,853 shares of Castle Biosciences worth $2.76M as of Q2 2026.
  • HRT Financial bought 99,995 Castle Biosciences shares in Q2 2026, an estimated $2.23M.
  • Castle Biosciences made up 0.01% of HRT Financial's portfolio in Q2 2026, its #1514 holding.
  • HRT Financial first reported a position in Castle Biosciences in Q4 2020 and has held it in 13 quarters since.
  • 176 funds tracked by Wall St. Rank held Castle Biosciences as of Q2 2026.

Based on HRT Financial's 13F filing for Q2 2026, filed 14 Aug 2026.