First Trust Advisors
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First Trust Advisors’s Castle Biosciences CSTL Stock Holding History

First Trust Advisors’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 		$3.46M Buy
+145,064
New +$3.23M ﹤0.01% 1765
2022
Q1 		– Sell
-7,936
Closed -$340K – 2530
2021
Q4 		$340K Sell
7,936
-7,613
-49% -$398K ﹤0.01% 2369
2021
Q3 		$1.03M Buy
15,549
+6,980
+81% +$491K ﹤0.01% 2016
2021
Q2 		$628K Buy
+8,569
New +$566K ﹤0.01% 2205

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

First Trust Advisors's CSTL Position: Q2 2026 in Review

First Trust Advisors opened a new position in Castle Biosciences (CSTL) in Q2 2026: 145,064 shares worth $3.46M. The stake represents ﹤0.01% of the portfolio and ranks #1765 among its holdings. This is a return to the name: First Trust Advisors previously reported a position in CSTL as recently as Q4 2021.

First Trust Advisors first reported a position in CSTL in Q2 2021 and has held it in 4 quarters since. 177 funds tracked by Wall St. Rank hold CSTL as of Q2 2026.

  • First Trust Advisors held 145,064 shares of Castle Biosciences worth $3.46M as of Q2 2026.
  • Castle Biosciences was a new First Trust Advisors position in Q2 2026.
  • Castle Biosciences made up ﹤0.01% of First Trust Advisors's portfolio in Q2 2026, its #1765 holding.
  • First Trust Advisors first reported a position in Castle Biosciences in Q2 2021 and has held it in 4 quarters since.
  • 177 funds tracked by Wall St. Rank held Castle Biosciences as of Q2 2026.

Based on First Trust Advisors's 13F filing for Q2 2026, filed 11 Aug 2026.