GATX Corporation
US ˙ NYSE ˙ US3614481030

SecurityGATX / GATX Corporation
InstitutionState Street Corp
Latest Disclosed Ownership1,320,026 shares
Latest Disclosed Value $ 225,381,239
State Street Corp reports 2.72% increase in ownership of GATX / GATX Corporation

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 1,320,026 shares of GATX Corporation (US:GATX) valued at $225,381,239 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,285,085 shares of GATX Corporation. This represents a change in shares of 2.72% during the quarter. The current value of the position is $225,803,648 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F GATX COM 361448103 1,320,026 34,941 2.72 225,381 3.41 0.0078
2026-02-13 2025-12-31 13F GATX COM 361448103 1,285,085 -21,782 -1.67 217,950 -4.59 0.0073
2025-11-14 2025-09-30 13F GATX COM 361448103 1,306,867 -27,555 -2.06 228,440 11.48 0.0079
2025-08-14 2025-06-30 13F GATX COM 361448103 1,334,422 -8,164 -0.61 204,914 -1.70 0.0077
2025-05-15 2025-03-31 13F GATX COM 361448103 1,342,586 -1,617 -0.12 208,463 0.08 0.0086
2025-02-14 2024-12-31 13F GATX COM 361448103 1,344,203 49,308 3.81 208,298 21.45 0.0082
2024-11-14 2024-09-30 13F GATX COM 361448103 1,294,895 7,585 0.59 171,509 0.66 0.0070
2024-08-14 2024-06-30 13F GATX COM 361448103 1,287,310 23,610 1.87 170,388 0.60 0.0074
2024-05-15 2024-03-31 13F GATX COM 361448103 1,263,700 19,974 1.61 169,374 13.28 0.0076
2024-02-14 2023-12-31 13F GATX COM 361448103 1,243,726 33,946 2.81 149,521 13.57 0.0073
2023-11-14 2023-09-30 13F GATX COM 361448103 1,209,780 10,814 0.90 131,660 -14.70 0.0073
2023-08-14 2023-06-30 13F GATX COM 361448103 1,198,966 3,702 0.31 154,355 17.38 0.0081
2023-05-15 2023-03-31 13F GATX COM 361448103 1,195,264 23,881 2.04 131,503 5.57 0.0074
2023-05-15 2022-12-31 13F/A-99 GATX COM 361448103 1,171,383 15,426 1.33 124,565 26.55 0.0073
2023-05-15 2022-12-31 13F GATX COM 361448103 1,171,383 15,426 124,565 0.0073
2022-11-15 2022-09-30 13F GATX COM 361448103 1,155,957 37,314 3.34 98,430 -6.55 0.0062
2022-08-15 2022-06-30 13F GATX COM 361448103 1,118,643 -9,788 -0.87 105,331 -24.31 0.0063
2022-05-16 2022-03-31 13F GATX COM 361448103 1,128,431 27,484 2.50 139,169 21.32 0.0069
2022-02-14 2021-12-31 13F GATX COM 361448103 1,100,947 6,458 0.59 114,708 17.02 0.0054
2021-11-15 2021-09-30 13F GATX COM 361448103 1,094,489 -1,731 -0.16 98,022 1.07 0.0052
2021-08-16 2021-06-30 13F GATX COM 361448103 1,096,220 17,120 1.59 96,983 -3.09 0.0051
2021-07-09 2021-03-31 13F/A-1 GATX COM 361448103 1,079,100 -10,963 -1.01 100,076 10.37 0.0057
2021-05-17 2021-03-31 13F GATX COM 361448103 1,079,100 -10,963 100,076 0.0057
2021-02-16 2020-12-31 13F GATX COM 361448103 1,090,063 -2,602 -0.24 90,671 30.17 0.0056
2020-11-10 2020-09-30 13F GATX COM 361448103 1,092,665 -53,998 -4.71 69,657 -0.38 0.0048
2020-08-14 2020-06-30 13F GATX COM 361448103 1,146,663 -17,233 -1.48 69,924 -3.97 0.0051
2020-06-19 2020-03-31 13F/A-1 GATX COM 361448103 1,163,896 10,199 0.88 72,813 -23.82 0.0064
2020-05-11 2020-03-31 13F GATX COM 361448103 1,163,896 10,199 72,813 6,394.4475
2020-02-06 2019-12-31 13F GATX COM 361448103 1,153,697 -40,500 -3.39 95,584 3.24 0.0065
2019-11-14 2019-09-30 13F GATX COM 361448103 1,194,197 -41,441 -3.35 92,586 -5.50 0.0069
2019-08-14 2019-06-30 13F GATX COM 361448103 1,235,638 15,906 1.30 97,974 5.18 0.0073
2019-05-15 2019-03-31 13F GATX COM 361448103 1,219,732 24,103 2.02 93,151 10.03 0.0073
2019-02-12 2018-12-31 13F GATX COM 361448103 1,195,629 -90,235 -7.02 84,662 -23.96 0.0077
2018-11-09 2018-09-30 13F GATX Common equity shares 361448103 1,285,864 39,905 3.20 111,344 20.39 0.0086
2018-08-14 2018-06-30 13F GATX Common equity shares 361448103 1,245,959 -59,581 -4.56 92,484 3.43 0.0077
2018-05-15 2018-03-31 13F GATX Common equity shares 361448103 1,305,540 -68,189 -4.96 89,413 4.71 0.0076
2018-02-14 2017-12-31 13F GATX Common equity shares 361448103 1,373,729 22,710 1.68 85,394 2.67 0.0069
2017-11-14 2017-09-30 13F GATX Common equity shares 361448103 1,351,019 -41,148 -2.96 83,171 -7.04 0.0072
2017-08-14 2017-06-30 13F GATX Common equity shares 361448103 1,392,167 59,729 4.48 89,470 10.15 0.0079
2017-05-15 2017-03-31 13F GATX Common equity shares 361448103 1,332,438 20,689 1.58 81,227 0.56 0.0072
2017-02-09 2016-12-31 13F GATX Common equity shares 361448103 1,311,749 -13,261 -1.00 80,777 36.84 0.0076
2017-01-13 2016-09-30 13F/A-1 GATX Common equity shares 361448103 1,325,010 -55,129 -3.99 59,032 -2.71 0.0059
2016-11-14 2016-09-30 13F GATX Common equity shares 361448103 1,325,010 59,032
2016-08-12 2016-06-30 13F GATX Common equity shares 361448103 1,380,139 231,833 20.19 60,679 11.24 0.0065
2016-05-20 2016-03-31 13F/A-1 GATX Common equity shares 361448103 1,148,306 -13,406 -1.15 54,548 10.34 0.0059
2016-05-12 2016-03-31 13F GATX Common equity shares 361448103 1,148,306 54,548
2016-02-16 2015-12-31 13F GATX Common equity shares 361448103 1,161,712 13,281 1.16 49,435 -2.50 0.0054
2015-11-16 2015-09-30 13F GATX Common equity shares 361448103 1,148,431 -52,940 -4.41 50,705 -20.60 0.0059
2015-08-13 2015-06-30 13F GATX Common equity shares 361448103 1,201,371 -73,801 -5.79 63,860 -13.62 0.0068
2015-05-15 2015-03-31 13F GATX Common equity shares 361448103 1,275,172 35,273 2.84 73,933 3.62 0.0076
2015-02-11 2014-12-31 13F GATX Common equity shares 361448103 1,239,899 -37,088 -2.90 71,349 -4.27 0.0071
2014-11-12 2014-09-30 13F/A-1 GATX Common equity shares 361448103 1,276,987 -37,605 -2.86 74,534 -15.30 0.0080
2014-11-10 2014-09-30 13F GATX Common equity shares 361448103 1,276,987 74,534
2014-08-12 2014-06-30 13F GATX Common equity shares 361448103 1,314,592 32,010 2.50 87,998 1.08 0.0095
2014-05-15 2014-03-31 13F/A-1 GATX Common equity shares 361448103 1,282,582 -24,644 -1.89 87,061 27.66 0.0099
2014-05-13 2014-03-31 13F GATX Common equity shares 361448103 1,283,025 87,091
2014-02-06 2013-12-31 13F/A-1 GATX Common equity shares 361448103 1,307,226 -42,001 -3.11 68,200 6.37 0.0076
2014-02-06 2013-12-31 13F GATX Common equity shares 361448103 1,362,364 58,988
2013-11-12 2013-09-30 13F GATX Common equity shares 361448103 1,349,227 -25,039 -1.82 64,117 -1.63 0.0079
2013-08-08 2013-06-30 13F GATX Common equity shares 361448103 1,374,266 1,374,266 65,182 0.0085
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.