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
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 $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

Acadian Asset Management's CSTL Position: Q1 2026 in Review

Acadian Asset Management increased its Castle Biosciences (CSTL) stake by 24% in Q1 2026, buying an estimated $3.08M and bringing the position to 484,441 shares worth $11.9M. The position accounts for 0.02% of the portfolio, ranked #490.

Acadian Asset Management first reported a position in CSTL in Q1 2020 and has held it in 14 quarters since. The position peaked at $15.2M in Q4 2025. 186 funds tracked by Wall St. Rank hold CSTL as of Q1 2026.

  • Acadian Asset Management held 484,441 shares of Castle Biosciences worth $11.9M as of Q1 2026.
  • Acadian Asset Management bought 94,035 Castle Biosciences shares in Q1 2026, an estimated $3.08M.
  • Castle Biosciences made up 0.02% of Acadian Asset Management's portfolio in Q1 2026, its #490 holding.
  • Acadian Asset Management first reported a position in Castle Biosciences in Q1 2020 and has held it in 14 quarters since.
  • Acadian Asset Management's Castle Biosciences position peaked at $15.2M in Q4 2025.
  • 186 funds tracked by Wall St. Rank held Castle Biosciences as of Q1 2026.

Based on Acadian Asset Management's 13F filing for Q1 2026, filed 13 May 2026.