Acadian Asset Management
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Acadian Asset Management’s Castle Biosciences CSTL Stock Holding History

Acadian Asset Management’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 		$21.9M Buy
918,668
+434,227
+90% +$9.67M 0.03% 400
2026
Q1 		$11.9M Buy
484,441
+94,035
+24% +$3.08M 0.02% 490
2025
Q4 		$15.2M Sell
390,406
-61,246
-14% -$1.97M 0.02% 385
2025
Q3 		$10.3M Sell
451,652
-92,598
-17% -$1.88M 0.02% 477
2025
Q2 		$11.1M Sell
544,250
-131,816
-19% -$2.44M 0.02% 413
2025
Q1 		$13.5M Buy
676,066
+267,416
+65% +$6.62M 0.04% 279
2024
Q4 		$10.9M Buy
408,650
+7,412
+2% +$226K 0.03% 336
2024
Q3 		$11.4M Buy
401,238
+120,741
+43% +$3.07M 0.04% 320
2024
Q2 		$6.1M Buy
280,497
+69,673
+33% +$1.55M 0.02% 455
2024
Q1 		$4.67M Buy
210,824
+119,443
+131% +$2.6M 0.02% 486
2023
Q4 		$1.97M Buy
+91,381
New +$1.61M 0.01% 675
2021
Q1 		– Sell
-5,315
Closed -$357K – 2101
2020
Q4 		$357K Sell
5,315
-61,458
-92% -$3.33M ﹤0.01% 1342
2020
Q3 		$3.44M Buy
66,773
+27,911
+72% +$1.24M 0.01% 519
2020
Q2 		$1.47M Buy
38,862
+30,297
+354% +$1.04M 0.01% 828
2020
Q1 		$255K Buy
+8,565
New +$258K ﹤0.01% 1140

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
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
Mackenzie Financial
Mackenzie Financial Toronto Ontario, Ontario, Canada $100B AUM 36.93% 1-Year Est. Return

Acadian Asset Management's CSTL Position: Q2 2026 in Review

Acadian Asset Management increased its Castle Biosciences (CSTL) stake by 90% in Q2 2026, buying an estimated $9.67M and bringing the position to 918,668 shares worth $21.9M. The position accounts for 0.03% of the portfolio, ranked #400.

Acadian Asset Management first reported a position in CSTL in Q1 2020 and has held it in 15 quarters since. 177 funds tracked by Wall St. Rank hold CSTL as of Q2 2026.

  • Acadian Asset Management held 918,668 shares of Castle Biosciences worth $21.9M as of Q2 2026.
  • Acadian Asset Management bought 434,227 Castle Biosciences shares in Q2 2026, an estimated $9.67M.
  • Castle Biosciences made up 0.03% of Acadian Asset Management's portfolio in Q2 2026, its #400 holding.
  • Acadian Asset Management first reported a position in Castle Biosciences in Q1 2020 and has held it in 15 quarters since.
  • 177 funds tracked by Wall St. Rank held Castle Biosciences as of Q2 2026.

Based on Acadian Asset Management's 13F filing for Q2 2026, filed 13 Aug 2026.