BL
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BFSG LLC’s Castle Biosciences CSTL Stock Holding History

BFSG LLC’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 		$2.15K Hold
90
– – ﹤0.01% 691
2026
Q1 		$2.21K Hold
90
– – ﹤0.01% 666
2025
Q4 		$3.5K Hold
90
– – ﹤0.01% 614
2025
Q3 		$2.05K Hold
90
– – ﹤0.01% 641
2025
Q2 		$1.84K Hold
90
– – ﹤0.01% 614
2025
Q1 		$1.8K Hold
90
– – ﹤0.01% 610
2024
Q4 		$2.4K Hold
90
– – ﹤0.01% 602
2024
Q3 		$2.57K Hold
90
– – ﹤0.01% 579
2024
Q2 		$1.96K Hold
90
– – ﹤0.01% 577
2024
Q1 		$1.99K Hold
90
– – ﹤0.01% 591
2023
Q4 		$1.94K Buy
+90
New +$1.58K ﹤0.01% 545

Other funds holding CSTL

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RI
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
SPPAM
Summit Partners Public Asset Management Boston, Massachusetts $5.69B AUM 259.25% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

BFSG LLC's CSTL Position: Q2 2026 in Review

BFSG LLC held its Castle Biosciences (CSTL) position steady in Q2 2026 at 90 shares worth $2.15K. The position accounts for ﹤0.01% of the portfolio, ranked #691.

BFSG LLC first reported a position in CSTL in Q4 2023 and has held it in 11 quarters since. The position peaked at $3.5K in Q4 2025. 177 funds tracked by Wall St. Rank hold CSTL as of Q2 2026.

  • BFSG LLC held 90 shares of Castle Biosciences worth $2.15K as of Q2 2026.
  • BFSG LLC left its Castle Biosciences share count unchanged in Q2 2026.
  • Castle Biosciences made up ﹤0.01% of BFSG LLC's portfolio in Q2 2026, its #691 holding.
  • BFSG LLC first reported a position in Castle Biosciences in Q4 2023 and has held it in 11 quarters since.
  • BFSG LLC's Castle Biosciences position peaked at $3.5K in Q4 2025.
  • 177 funds tracked by Wall St. Rank held Castle Biosciences as of Q2 2026.

Based on BFSG LLC's 13F filing for Q2 2026, filed 20 Jul 2026.