Teacher Retirement System of Texas
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Teacher Retirement System of Texas’s Castle Biosciences CSTL Stock Holding History

Teacher Retirement System of Texas’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
Q2 		– Sell
-10,383
Closed -$208K – 2068
2025
Q1 		$208K Buy
10,383
+908
+10% +$22.5K ﹤0.01% 1869
2024
Q4 		$253K Buy
+9,475
New +$289K ﹤0.01% 1437
2021
Q4 		– Sell
-3,193
Closed -$212K – 2205
2021
Q3 		$212K Buy
+3,193
New +$225K ﹤0.01% 1877

Other funds holding CSTL

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
B
Braidwell Stamford, Connecticut $3B AUM 46.72% 1-Year Est. Return
Allianz Asset Management
Allianz Asset Management Munich, Germany $95.4B AUM 38.74% 1-Year Est. Return

Teacher Retirement System of Texas's CSTL Position: Q2 2025 in Review

Teacher Retirement System of Texas sold out of Castle Biosciences (CSTL) in Q2 2025, closing a stake of 10,383 shares — an estimated $208K sold.

Teacher Retirement System of Texas first reported a position in CSTL in Q3 2021 and held it in 3 quarters. The position peaked at $253K in Q4 2024. 152 funds tracked by Wall St. Rank hold CSTL as of Q2 2025.

  • Teacher Retirement System of Texas reported no remaining Castle Biosciences position as of Q2 2025 after selling out during the quarter.
  • Teacher Retirement System of Texas sold 10,383 Castle Biosciences shares in Q2 2025, an estimated $208K.
  • Teacher Retirement System of Texas first reported a position in Castle Biosciences in Q3 2021 and held it in 3 quarters.
  • Teacher Retirement System of Texas's Castle Biosciences position peaked at $253K in Q4 2024.
  • 152 funds tracked by Wall St. Rank held Castle Biosciences as of Q2 2025.

Based on Teacher Retirement System of Texas's 13F filing for Q2 2025, filed 1 Aug 2025.