GATX Corporation
US ˙ ARCX ˙ US3614481030

SecurityGMT / GATX Corporation
InstitutionOppenheimer & Co Inc
Latest Disclosed Ownership1,349 shares
Latest Disclosed Value $ 230,328
Oppenheimer & Co Inc ownership in GMT / GATX Corporation

On April 23, 2026 - Oppenheimer & Co Inc filed a 13F-HR form disclosing ownership of 1,349 shares of GATX Corporation (US:GMT) valued at $230,328 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 8, 2023 disclosing 0 shares of GATX Corporation.

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)
2026-04-23 2026-03-31 13F GATX COM 361448103 1,349 1,349 230 0.0028
2023-02-08 2022-12-31 13F GATX COM 361448103 0 -4,096 -100.00 0 -100.00
2022-11-14 2022-09-30 13F GATX COM 361448103 4,096 -5,197 -55.92 349 -60.11 0.0082
2022-08-08 2022-06-30 13F GATX COM 361448103 9,293 -1,400 -13.09 875 -33.66 0.0188
2022-05-12 2022-03-31 13F GATX COM 361448103 10,693 0 0.00 1,319 18.40 0.0238
2022-02-02 2021-12-31 13F GATX COM 361448103 10,693 -1,350 -11.21 1,114 3.24 0.0195
2021-11-12 2021-09-30 13F GATX COM 361448103 12,043 -1,600 -11.73 1,079 -10.60 0.0202
2021-08-03 2021-06-30 13F GATX COM 361448103 13,643 0 0.00 1,207 -4.58 0.0216
2021-05-10 2021-03-31 13F GATX COM 361448103 13,643 500 3.80 1,265 15.74 0.0252
2021-02-11 2020-12-31 13F GATX COM 361448103 13,143 -400 -2.95 1,093 26.65 0.0231
2020-11-13 2020-09-30 13F GATX COM 361448103 13,543 -2,512 -15.65 863 -11.85 0.0216
2020-08-11 2020-06-30 13F GATX COM 361448103 16,055 -648 -3.88 979 -6.32 0.0253
2020-05-08 2020-03-31 13F GATX COM 361448103 16,703 -698 -4.01 1,045 -27.53 0.0317
2020-02-07 2019-12-31 13F GATX COM 361448103 17,401 -299 -1.69 1,442 5.10 0.0357
2019-10-31 2019-09-30 13F GATX COM 361448103 17,700 -998 -5.34 1,372 -7.48 0.0374
2019-08-09 2019-06-30 13F GATX COM 361448103 18,698 -74 -0.39 1,483 3.42 0.0403
2019-04-24 2019-03-31 13F GATX COM 361448103 18,772 -500 -2.59 1,434 5.05 0.0383
2019-01-29 2018-12-31 13F GATX COM 361448103 19,272 1,795 10.27 1,365 -9.78 0.0427
2018-10-26 2018-09-30 13F GATX COM 361448103 17,477 -2,292 -11.59 1,513 3.14 0.0385
2018-08-10 2018-06-30 13F GATX COM 361448103 19,769 1 0.01 1,467 8.35 0.0398
2018-05-01 2018-03-31 13F GATX COM 361448103 19,768 0 0.00 1,354 10.17 0.0348
2018-02-07 2017-12-31 13F GATX COM 361448103 19,768 0 0.00 1,229 0.99 0.0316
2017-11-09 2017-09-30 13F GATX COM 361448103 19,768 0 0.00 1,217 -4.17 0.0326
2017-08-09 2017-06-30 13F GATX COM 361448103 19,768 0 0.00 1,270 5.39 0.0350
2017-05-15 2017-03-31 13F GATX COM 361448103 19,768 0 0.00 1,205 -0.99 0.0341
2017-02-01 2016-12-31 13F GATX COM 361448103 19,768 0 0.00 1,217 38.14 0.0354
2016-11-07 2016-09-30 13F GATX COM 361448103 19,768 -300 -1.49 881 -0.11 0.0257
2016-08-08 2016-06-30 13F GATX COM 361448103 20,068 7,150 55.35 882 43.65 0.0263
2016-04-26 2016-03-31 13F GATX COM 361448103 12,918 -10,307 -44.38 614 -37.85 0.0186
2016-02-03 2015-12-31 13F GATX COM 361448103 23,225 -103 -0.44 988 -4.08 0.0294
2015-11-13 2015-09-30 13F GATX COM 361448103 23,328 -1,835 -7.29 1,030 -22.96 0.0313
2015-08-12 2015-06-30 13F GATX COM 361448103 25,163 -199 -0.78 1,337 -9.05 0.0372
2015-05-08 2015-03-31 13F GATX COM 361448103 25,362 1,241 5.14 1,470 5.91 0.0400
2015-02-10 2014-12-31 13F GATX COM 361448103 24,121 -503 -2.04 1,388 -3.48 0.0398
2014-11-12 2014-09-30 13F GATX COM 361448103 24,624 -315 -1.26 1,438 -13.89 0.0428
2014-08-14 2014-06-30 13F GATX COM 361448103 24,939 360 1.46 1,670 0.12 0.0502
2014-05-09 2014-03-31 13F GATX COM 361448103 24,579 24,579 1,668 0.0500
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.