Westinghouse Air Brake Technologies Corporation
MX ˙ BMV ˙ US9297401088
SecurityMX:WAB / Westinghouse Air Brake Technologies Corporation
InstitutionCHICAGO TRUST Co NA
Latest Disclosed Ownership10,671 shares
Latest Disclosed Value $ 2,666,788
CHICAGO TRUST Co NA reports 3.01% decrease in ownership of WAB / Westinghouse Air Brake Technologies Corporation

On April 24, 2026 - CHICAGO TRUST Co NA filed a 13F-HR form disclosing ownership of 10,671 shares of Westinghouse Air Brake Technologies Corporation (MX:WAB) valued at $2,666,788 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 11,002 shares of Westinghouse Air Brake Technologies Corporation. This represents a change in shares of -3.01% 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.

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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)
2026-04-24 2026-03-31 13F WABTEC COM 929740108 10,671 -331 -3.01 2,667 13.54 0.2659
2026-02-17 2025-12-31 13F WABTEC COM 929740108 0 -100.00 0
2026-02-17 2025-12-31 13F WABTEC COM 929740108 11,002 82 0.75 2,348 7.26 0.2328
2025-10-10 2025-09-30 13F WABTEC COM 929740108 10,920 -918 -7.75 2,189 -11.66 0.3039
2025-07-14 2025-06-30 13F WABTEC COM 929740108 11,838 645 5.76 2,478 22.13 0.3483
2025-04-14 2025-03-31 13F WABTEC COM 929740108 11,193 470 4.38 2,030 -0.15 0.3600
2025-01-13 2024-12-31 13F WABTEC COM 929740108 10,723 -417 -3.74 2,033 0.40 0.3598
2024-10-10 2024-09-30 13F WABTEC COM 929740108 11,140 745 7.17 2,025 23.26 0.3491
2024-07-11 2024-06-30 13F WABTEC COM 929740108 10,395 1,602 18.22 1,643 28.28 0.3333
2024-04-12 2024-03-31 13F WABTEC COM 929740108 8,793 342 4.05 1,281 19.40 0.2650
2024-01-16 2023-12-31 13F WABTEC COM 929740108 8,451 561 7.11 1,072 27.92 0.2384
2023-10-27 2023-09-30 13F WABTEC COM 929740108 7,890 394 5.26 838 1.95 0.2106
2023-07-19 2023-06-30 13F WABTEC COM 929740108 7,496 560 8.07 822 17.43 0.1971
2023-04-11 2023-03-31 13F WABTEC COM 929740108 6,936 -449 -6.08 701 0.1759
2023-01-12 2022-12-31 13F WABTEC COM 929740108 7,385 165 2.29 1 -100.00 0.1839
2022-10-13 2022-09-30 13F WABTEC COM 929740108 7,220 -596 -7.63 588 -8.41 0.1525
2022-08-03 2022-06-30 13F WABTEC COM 929740108 7,816 -6,433 -45.15 642 -53.10 0.1618
2022-04-12 2022-03-31 13F WABTEC COM 929740108 14,249 -1,174 -7.61 1,369 -3.59 0.2164
2022-01-18 2021-12-31 13F WABTEC COM 929740108 15,423 -24 -0.16 1,420 6.69 0.2827
2021-10-13 2021-09-30 13F WABTEC COM 929740108 15,447 1,441 10.29 1,331 15.54 0.2923
2021-07-21 2021-06-30 13F WABTEC COM 929740108 14,006 -842 -5.67 1,152 -2.04 0.2726
2021-04-12 2021-03-31 13F WABTEC COM 929740108 14,848 168 1.14 1,176 9.50 0.4039
2021-01-28 2020-12-31 13F WABTEC COM 929740108 14,680 134 0.92 1,074 19.33 0.3692
2020-10-08 2020-09-30 13F WABTEC COM 929740108 14,546 1,546 11.89 900 20.32 0.3753
2020-07-13 2020-06-30 13F WABTEC COM 929740108 13,000 171 1.33 748 21.04 0.3310
2020-04-07 2020-03-31 13F WABTEC COM 929740108 12,829 2,787 27.75 618 -20.97 0.3126
2020-01-13 2019-12-31 13F WABTEC COM 929740108 10,042 211 2.15 782 10.76 0.3181
2019-10-09 2019-09-30 13F WABTEC COM 929740108 9,831 1,144 13.17 706 13.32 0.2979
2019-07-23 2019-06-30 13F WABTEC COM 929740108 8,687 8,687 623 0.2655
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.