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CSTL icon

Inspire Investing’s Castle Biosciences CSTL Stock Holding History

Inspire Investing’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 		$517K Buy
21,045
+9,034
+75% +$296K 0.03% 596
2025
Q4 		$467K Sell
12,011
-7,876
-40% -$254K 0.04% 552
2025
Q3 		$453K Buy
19,887
+770
+4% +$15.6K 0.04% 631
2025
Q2 		$390K Buy
19,117
+1,964
+11% +$36.4K 0.04% 501
2025
Q1 		$343K Sell
17,153
-28,597
-63% -$708K 0.04% 584
2024
Q4 		$1.22M Buy
45,750
+3,234
+8% +$98.5K 0.14% 166
2024
Q3 		$1.21M Buy
42,516
+5,349
+14% +$136K 0.12% 175
2024
Q2 		$809K Buy
+37,167
New +$828K 0.09% 241

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

Inspire Investing's CSTL Position: Q1 2026 in Review

Inspire Investing increased its Castle Biosciences (CSTL) stake by 75% in Q1 2026, buying an estimated $296K and bringing the position to 21,045 shares worth $517K. The position accounts for 0.03% of the portfolio, ranked #596.

Inspire Investing first reported a position in CSTL in Q2 2024 and has held it in 8 quarters since. The position peaked at $1.22M in Q4 2024. 186 funds tracked by Wall St. Rank hold CSTL as of Q1 2026.

  • Inspire Investing held 21,045 shares of Castle Biosciences worth $517K as of Q1 2026.
  • Inspire Investing bought 9,034 Castle Biosciences shares in Q1 2026, an estimated $296K.
  • Castle Biosciences made up 0.03% of Inspire Investing's portfolio in Q1 2026, its #596 holding.
  • Inspire Investing first reported a position in Castle Biosciences in Q2 2024 and has held it in 8 quarters since.
  • Inspire Investing's Castle Biosciences position peaked at $1.22M in Q4 2024.
  • 186 funds tracked by Wall St. Rank held Castle Biosciences as of Q1 2026.

Based on Inspire Investing's 13F filing for Q1 2026, filed 23 Apr 2026.