GATX Corporation
US ˙ ARCX ˙ US3614481030

SecurityGMT / GATX Corporation
InstitutionSquarepoint Ops LLC
Latest Disclosed Ownership22,523 shares
Latest Disclosed Value $ 3,845,577
Squarepoint Ops LLC reports 86.32% decrease in ownership of GMT / GATX Corporation

On May 15, 2026 - Squarepoint Ops LLC filed a 13F-HR form disclosing ownership of 22,523 shares of GATX Corporation (US:GMT) valued at $3,845,577 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 164,689 shares of GATX Corporation. This represents a change in shares of -86.32% during the quarter.

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.

Upgrade to unlock premium data and export to Excel .

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 22,523 -142,166 -86.32 3,846 -86.23 0.0045
2026-02-13 2025-12-31 13F GATX COM 361448103 164,689 2,367 1.46 27,931 -1.56 0.0297
2025-11-14 2025-09-30 13F GATX COM 361448103 162,322 -25,513 -13.58 28,374 -1.63 0.0285
2025-08-27 2025-06-30 13F/A-1 GATX COM 361448103 187,835 152,361 429.50 28,844 423.66 0.0300
2025-08-14 2025-06-30 13F GATX COM 361448103 187,835 152,361 28,844 0.0300
2025-08-27 2025-03-31 13F/A-1 GATX COM 361448103 35,474 35,474 5,508 0.0067
2025-05-15 2025-03-31 13F GATX COM 361448103 35,474 35,474 5,508 0.0067
2025-02-14 2024-12-31 13F GATX COM 361448103 0 -24,755 -100.00 0 -100.00
2024-11-14 2024-09-30 13F GATX COM 361448103 24,755 11,408 85.47 3,279 85.62 0.0051
2024-08-14 2024-06-30 13F GATX COM 361448103 13,347 13,347 1,767 0.0029
2024-05-15 2024-03-31 13F GATX COM 361448103 0 -17,941 -100.00 0 -100.00
2024-02-14 2023-12-31 13F GATX COM 361448103 17,941 -4,439 -19.83 2,157 -11.46 0.0041
2023-11-14 2023-09-30 13F GATX COM 361448103 22,380 13,392 149.00 2,436 110.46 0.0060
2023-08-14 2023-06-30 13F GATX COM 361448103 8,988 8,988 1,157 0.0035
2023-02-14 2022-12-31 13F GATX COM 361448103 0 -51,836 -100.00 0 -100.00
2022-11-14 2022-09-30 13F GATX COM 361448103 51,836 -160 -0.31 4,414 -9.84 0.0223
2022-08-15 2022-06-30 13F GATX COM 361448103 51,996 31,698 156.16 4,896 95.61 0.0272
2022-05-16 2022-03-31 13F GATX COM 361448103 20,298 16,338 412.58 2,503 506.05 0.0107
2022-02-14 2021-12-31 13F GATX COM 361448103 3,960 1,615 68.87 413 96.67 0.0011
2021-11-15 2021-09-30 13F GATX COM 361448103 2,345 -8,065 -77.47 210 -77.20 0.0006
2021-08-16 2021-06-30 13F GATX COM 361448103 10,410 7,538 262.47 921 246.24 0.0035
2021-05-17 2021-03-31 13F GATX COM 361448103 2,872 2,872 266 0.0016
2020-11-16 2020-09-30 13F GATX COM 361448103 0 -23,312 -100.00 0 -100.00
2020-08-14 2020-06-30 13F GATX COM 361448103 23,312 19,881 579.45 1,422 561.40 0.0230
2020-05-15 2020-03-31 13F GATX COM 361448103 3,431 -17,318 -83.46 215 -87.49 0.0055
2020-02-14 2019-12-31 13F GATX COM 361448103 20,749 9,608 86.24 1,719 98.96 0.0102
2019-11-14 2019-09-30 13F GATX COM 361448103 11,141 8,180 276.26 864 267.66 0.0077
2019-08-14 2019-06-30 13F GATX COM 361448103 2,961 2,961 235 0.0023
2018-11-14 2018-09-30 13F GATX COM 361448103 0 -6,119 -100.00 0 -100.00
2018-08-14 2018-06-30 13F GATX COM 361448103 6,119 -13,910 -69.45 454 -66.91 0.0060
2018-05-15 2018-03-31 13F GATX COM 361448103 20,029 14,736 278.41 1,372 317.02 0.0218
2018-02-14 2017-12-31 13F GATX COM 361448103 5,293 5,293 329 0.0057
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.