v3.26.1
GATX Corporation Master Trust (Tables)
 12 Months Ended
Dec. 31, 2025
EBP 002  
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  $97,117,908 
GATX common stock fund31,944,636 30,995,772 
Collective trusts141,449,235 135,641,629 
Total investments at fair value
287,555,524 263,755,309 
Plus:
Other receivables
918 891 
Net assets at end of year$287,556,442 $263,756,200 
December 31, 2024
Master Trust BalancesPlan's Interest in Master Trust Balances
Mutual funds$98,986,627 $84,186,812 
GATX common stock fund30,869,976 29,640,088 
Collective trusts130,498,282 124,398,524 
Total investments at fair value
260,354,885 238,225,424 
Plus:
Other receivables
1,195 1,147 
Net assets at end of year$260,356,080 $238,226,571 
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 income38,332,148 $38,396,578