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CSTL icon

SignatureFD’s Castle Biosciences CSTL Stock Holding History

SignatureFD’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 		– Sell
-45
Closed -$1.1K – 3532
2026
Q1 		$1.1K Hold
45
– – ﹤0.01% 3189
2025
Q4 		$1.75K Hold
45
– – ﹤0.01% 3003
2025
Q3 		$1.02K Hold
45
– – ﹤0.01% 3079
2025
Q2 		$919 Buy
+45
New +$833 ﹤0.01% 3037
2023
Q4 		– Sell
-28,358
Closed -$479K – 3159
2023
Q3 		$479K Sell
28,358
-32
-0.1% -$560 0.01% 459
2023
Q2 		$390K Buy
28,390
+8,982
+46% +$182K 0.01% 529
2023
Q1 		$441K Buy
19,408
+11
+0.1% +$269 0.01% 474
2022
Q4 		$457K Hold
19,397
– – 0.01% 439
2022
Q3 		$506K Hold
19,397
– – 0.02% 370
2022
Q2 		$426K Buy
19,397
+7,592
+64% +$176K 0.01% 418
2022
Q1 		$530K Sell
11,805
-7,610
-39% -$314K 0.02% 380
2021
Q4 		$832K Buy
19,415
+32
+0.2% +$1.67K 0.03% 248
2021
Q3 		$1.29M Buy
19,383
+10
+0.1% +$704 0.04% 152
2021
Q2 		$1.42M Buy
19,373
+8
+0% +$528 0.06% 128
2021
Q1 		$1.33M Buy
19,365
+240
+1% +$18K 0.06% 126
2020
Q4 		$1.28M Sell
19,125
-13,000
-40% -$705K 0.06% 104
2020
Q3 		$1.65M Hold
32,125
– – 0.09% 85
2020
Q2 		$1.21M Buy
32,125
+5,993
+23% +$205K 0.07% 92
2020
Q1 		$779K Buy
26,132
+10,000
+62% +$302K 0.07% 128
2019
Q4 		$554K Buy
+16,132
New +$394K 0.04% 219

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

SignatureFD's CSTL Position: Q2 2026 in Review

SignatureFD sold out of Castle Biosciences (CSTL) in Q2 2026, closing a stake of 45 shares — an estimated $1.1K sold.

SignatureFD first reported a position in CSTL in Q4 2019 and held it in 20 quarters. The position peaked at $1.65M in Q3 2020. 177 funds tracked by Wall St. Rank hold CSTL as of Q2 2026.

  • SignatureFD reported no remaining Castle Biosciences position as of Q2 2026 after selling out during the quarter.
  • SignatureFD sold 45 Castle Biosciences shares in Q2 2026, an estimated $1.1K.
  • SignatureFD first reported a position in Castle Biosciences in Q4 2019 and held it in 20 quarters.
  • SignatureFD's Castle Biosciences position peaked at $1.65M in Q3 2020.
  • 177 funds tracked by Wall St. Rank held Castle Biosciences as of Q2 2026.

Based on SignatureFD's 13F filing for Q2 2026, filed 24 Jul 2026.