v3.26.1
GATX Corporation Master Trust (Tables)
 12 Months Ended
Dec. 31, 2025
EBP 004  
EBP, Master Trust [Line Items]  
Schedule of Master Trust Net Assets
The following tables present the Master Trust balances and the Plan's interest in the Master Trust balances:
December 31, 2025
Master Trust BalancesPlan's Interest in Master Trust Balances
Mutual funds$114,161,653  $17,043,745 
GATX common stock fund31,944,636 948,864 
Collective trusts141,449,235 5,807,606 
Total investments at fair value287,555,524 23,800,215 
Plus:
Other receivables918 27 
Net assets at end of year$287,556,442 $23,800,242 
December 31, 2024
Master Trust BalancesPlan's Interest in Master Trust Balances
Mutual funds$98,986,627 $14,799,815 
GATX common stock fund30,869,976 1,229,888 
Collective trusts130,498,282 6,099,758 
Total investments at fair value260,354,885 22,129,461 
Plus:
Other receivables1,195 48 
Net assets at end of year$260,356,080 $22,129,509 
The following table presents the net appreciation in fair value of investments and investment income of the Master Trust:
Years Ended December 31
20252024
Net appreciation in fair value of investments$34,373,723 $34,703,767 
Interest and dividend income3,958,425 3,692,811 
Total investment income$38,332,148 $38,396,578