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Custom Index Systems’s TransDigm Group TDG Stock Holding History

Custom Index Systems’s Portfolio TDG Stock Details TDG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-921
Closed -$1.21M – 283
2025
Q3 		$1.21M Buy
921
+610
+196% +$872K 0.36% 81
2025
Q2 		$473K Hold
311
– – 0.23% 144
2025
Q1 		$430K Buy
+311
New +$415K 0.22% 142

Other funds holding TDG

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Custom Index Systems's TDG Position: Q4 2025 in Review

Custom Index Systems sold out of TransDigm Group (TDG) in Q4 2025, closing a stake of 921 shares — an estimated $1.21M sold.

Custom Index Systems first reported a position in TDG in Q1 2025 and held it in 3 quarters. The position peaked at $1.21M in Q3 2025. 1,133 funds tracked by Wall St. Rank hold TDG as of Q4 2025.

  • Custom Index Systems reported no remaining TransDigm Group position as of Q4 2025 after selling out during the quarter.
  • Custom Index Systems sold 921 TransDigm Group shares in Q4 2025, an estimated $1.21M.
  • Custom Index Systems first reported a position in TransDigm Group in Q1 2025 and held it in 3 quarters.
  • Custom Index Systems's TransDigm Group position peaked at $1.21M in Q3 2025.
  • 1,133 funds tracked by Wall St. Rank held TransDigm Group as of Q4 2025.

Based on Custom Index Systems's 13F filing for Q4 2025, filed 12 Feb 2026.