Susquehanna International Group
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Susquehanna International Group’s Castle Biosciences CSTL Stock Holding History

Susquehanna International Group’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
2025
Q1 		– Sell
-9,500
Closed -$253K – 12605
2024
Q4 		$253K Buy
9,500
+100
+1% +$3.05K ﹤0.01% 10189
2024
Q3 		$268K Buy
+9,400
New +$239K ﹤0.01% 9827
2023
Q4 		– Sell
-18,600
Closed -$314K – 12475
2023
Q3 		$314K Sell
18,600
-16,200
-47% -$283K ﹤0.01% 9245
2023
Q2 		$477K Buy
+34,800
New +$705K ﹤0.01% 8427
2022
Q1 		– Sell
-5,000
Closed -$214K – 13109
2021
Q4 		$214K Sell
5,000
-5,900
-54% -$308K ﹤0.01% 11302
2021
Q3 		$725K Sell
10,900
-13,200
-55% -$929K ﹤0.01% 8413
2021
Q2 		$1.77M Buy
24,100
+8,100
+51% +$535K ﹤0.01% 6203
2021
Q1 		$1.09M Sell
16,000
-1,700
-10% -$128K ﹤0.01% 7495
2020
Q4 		$1.19M Buy
17,700
+10,000
+130% +$542K ﹤0.01% 6313
2020
Q3 		$396K Buy
7,700
+700
+10% +$31.1K ﹤0.01% 8152
2020
Q2 		$264K Buy
+7,000
New +$239K ﹤0.01% 8577

Other funds holding CSTL

BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $204B AUM 27.99% 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 $3.37T AUM 44.26% 1-Year Est. Return

Susquehanna International Group's CSTL Position: Q1 2026 in Review

Susquehanna International Group opened a new position in Castle Biosciences (CSTL) in Q1 2026: 9,520 shares worth $234K. The stake represents ﹤0.01% of the portfolio and ranks #11401 among its holdings. This is a return to the name: Susquehanna International Group previously reported a position in CSTL as recently as Q3 2025.

Susquehanna International Group first reported a position in CSTL in Q2 2020 and has held it in 14 quarters since. The position peaked at $3.04M in Q1 2021. 186 funds tracked by Wall St. Rank hold CSTL as of Q1 2026.

  • Susquehanna International Group held 9,520 shares of Castle Biosciences worth $234K as of Q1 2026.
  • Castle Biosciences was a new Susquehanna International Group position in Q1 2026.
  • Castle Biosciences made up ﹤0.01% of Susquehanna International Group's portfolio in Q1 2026, its #11401 holding.
  • Susquehanna International Group first reported a position in Castle Biosciences in Q2 2020 and has held it in 14 quarters since.
  • Susquehanna International Group's Castle Biosciences position peaked at $3.04M in Q1 2021.
  • 186 funds tracked by Wall St. Rank held Castle Biosciences as of Q1 2026.

Based on Susquehanna International Group's 13F filing for Q1 2026, filed 15 May 2026.