GATX Corporation
US ˙ NYSE ˙ US3614481030

SecurityGATX / GATX Corporation
InstitutionConnable Office Inc
Latest Disclosed Ownership3,215 shares
Latest Disclosed Value $ 548,929
Connable Office Inc reports 15.10% decrease in ownership of GATX / GATX Corporation

On April 29, 2026 - Connable Office Inc filed a 13F-HR form disclosing ownership of 3,215 shares of GATX Corporation (US:GATX) valued at $548,929 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 3,787 shares of GATX Corporation. This represents a change in shares of -15.10% during the quarter. The current value of the position is $556,549 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)
2026-04-29 2026-03-31 13F GATX Com 361448103 3,215 -572 -15.10 549 -14.64 0.0540
2026-02-03 2025-12-31 13F GATX Com 361448103 3,787 -86 -2.22 642 -5.17 0.0589
2025-11-06 2025-09-30 13F GATX Com 361448103 3,873 -199 -4.89 677 8.32 0.0628
2025-08-05 2025-06-30 13F GATX Com 361448103 4,072 0 0.00 625 -1.11 0.0619
2025-05-09 2025-03-31 13F GATX Com 361448103 4,072 0 0.00 632 0.32 0.0673
2025-02-05 2024-12-31 13F GATX Com 361448103 4,072 0 0.00 631 16.88 0.0653
2024-11-06 2024-09-30 13F GATX Com 361448103 4,072 0 0.00 539 0.19 0.0543
2024-08-07 2024-06-30 13F GATX Com 361448103 4,072 0 0.00 539 -1.28 0.0580
2024-04-30 2024-03-31 13F GATX Com 361448103 4,072 -218 -5.08 546 5.83 0.0618
2024-02-12 2023-12-31 13F GATX Com 361448103 4,290 0 0.00 516 10.52 0.0624
2023-11-08 2023-09-30 13F GATX Com 361448103 4,290 0 0.00 467 -15.58 0.0641
2023-08-07 2023-06-30 13F GATX Com 361448103 4,290 0 0.00 552 17.20 0.0758
2023-04-17 2023-03-31 13F GATX Com 361448103 4,290 0 0.00 472 0.0686
2023-01-23 2022-12-31 13F GATX Com 361448103 4,290 0 0.00 0 -100.00 0.0653
2022-10-26 2022-09-30 13F GATX Com 361448103 4,290 0 0.00 365 -9.65 0.0593
2022-08-01 2022-06-30 13F GATX Com 361448103 4,290 0 0.00 404 -23.63 0.0618
2022-05-12 2022-03-31 13F GATX Com 361448103 4,290 0 0.00 529 18.34 0.0706
2022-02-14 2021-12-31 13F GATX Com 361448103 4,290 207 5.07 447 22.13 0.0569
2021-11-09 2021-09-30 13F GATX Com 361448103 4,083 16 0.39 366 1.67 0.0531
2021-08-06 2021-06-30 13F GATX Com 361448103 4,067 -709 -14.85 360 -18.74 0.0499
2021-05-07 2021-03-31 13F GATX Com 361448103 4,776 -273 -5.41 443 5.48 0.0644
2021-02-09 2020-12-31 13F GATX Com 361448103 5,049 0 0.00 420 30.43 0.0645
2020-11-10 2020-09-30 13F GATX Com 361448103 5,049 229 4.75 322 9.52 0.0602
2020-08-10 2020-06-30 13F GATX Com 361448103 4,820 383 8.63 294 5.76 0.0578
2020-05-08 2020-03-31 13F GATX Com 361448103 4,437 0 0.00 278 -24.46 0.0664
2020-02-07 2019-12-31 13F GATX Com 361448103 4,437 0 0.00 368 6.98 0.0631
2019-11-12 2019-09-30 13F GATX Com 361448103 4,437 112 2.59 344 0.29 0.0620
2019-08-06 2019-06-30 13F GATX Com 361448103 4,325 -152 -3.40 343 0.29 0.0630
2019-05-07 2019-03-31 13F GATX Com 361448103 4,477 137 3.16 342 11.40 0.0664
2019-02-12 2018-12-31 13F GATX Com 361448103 4,340 0 0.00 307 -18.35 0.0679
2018-11-06 2018-09-30 13F GATX Com 361448103 4,340 0 0.00 376 16.77 0.0722
2018-08-07 2018-06-30 13F GATX Com 361448103 4,340 37 0.86 322 9.15 0.0653
2018-05-08 2018-03-31 13F GATX Com 361448103 4,303 -651 -13.14 295 -4.22 0.0580
2018-02-07 2017-12-31 13F GATX Com 361448103 4,954 0 0.00 308 0.98 0.0599
2017-11-03 2017-09-30 13F GATX Com 361448103 4,954 0 0.00 305 -4.09 0.0624
2017-08-01 2017-06-30 13F GATX Com 361448103 4,954 0 0.00 318 5.30 0.0696
2017-05-04 2017-03-31 13F GATX Com 361448103 4,954 -589 -10.63 302 -11.44 0.0681
2017-02-08 2016-12-31 13F GATX Com 361448103 5,543 -708 -11.33 341 22.66 0.0783
2016-11-08 2016-09-30 13F GATX Com 361448103 6,251 0 0.00 278 1.09 0.0663
2016-08-04 2016-06-30 13F GATX Com 361448103 6,251 0 0.00 275 -7.41 0.0768
2016-05-09 2016-03-31 13F GATX Com 361448103 6,251 0 0.00 297 11.65 0.0822
2016-02-11 2015-12-31 13F GATX Com 361448103 6,251 6,251 0.00 266 0.0765
2015-11-12 2015-09-30 13F GATX Com 361448103 0 -4,928 -100.00 0 -100.00
2015-08-05 2015-06-30 13F GATX Com 361448103 4,928 70 1.44 262 -7.09 0.0700
2015-04-30 2015-03-31 13F GATX Com 361448103 4,858 0 0.00 282 0.71 0.0721
2015-02-10 2014-12-31 13F GATX Com 361448103 4,858 -170 -3.38 280 -4.44 0.0754
2014-11-12 2014-09-30 13F GATX Com 361448103 5,028 -20 -0.40 293 -13.31 0.0769
2014-07-22 2014-06-30 13F GATX Com 361448103 5,048 -340 -6.31 338 -7.65 0.0872
2014-05-06 2014-03-31 13F GATX Com 361448103 5,388 -370 -6.43 366 22.00 0.0995
2014-01-13 2013-12-31 13F GATX Com 361448103 5,758 -3,100 -35.00 300 -28.74 0.0813
2013-10-24 2013-09-30 13F GATX Com 361448103 8,858 -260 -2.85 421 -2.55 0.1185
2013-07-23 2013-06-30 13F GATX Com 361448103 9,118 9,118 432 0.1232
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.