Westinghouse Air Brake Technologies Corporation
MX ˙ BMV ˙ US9297401088
SecurityMX:WAB / Westinghouse Air Brake Technologies Corporation
InstitutionRhumbline Advisers
Latest Disclosed Ownership321,235 shares
Latest Disclosed Value $ 80,279,723
Rhumbline Advisers reports 1.37% decrease in ownership of WAB / Westinghouse Air Brake Technologies Corporation

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 321,235 shares of Westinghouse Air Brake Technologies Corporation (MX:WAB) valued at $80,279,723 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 325,688 shares of Westinghouse Air Brake Technologies Corporation. This represents a change in shares of -1.37% 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)
2026-05-12 2026-03-31 13F WABTEC CORP COM COM 929740108 321,235 -4,453 -1.37 80,280 15.48 0.0687
2026-02-13 2025-12-31 13F WABTEC CORP COM COM 929740108 325,688 -5,250 -1.59 69,518 4.78 0.0562
2025-11-06 2025-09-30 13F WABTEC CORP COM COM 929740108 330,938 11,469 3.59 66,343 -0.80 0.0533
2025-08-12 2025-06-30 13F WABTEC CORP COM COM 929740108 319,469 6,010 1.92 66,881 17.65 0.0573
2025-05-29 2025-03-31 13F/A-1 WABTEC CORP COM COM 929740108 313,459 9,041 2.97 56,846 -1.51 0.0532
2025-04-08 2025-03-31 13F WABTEC CORP COM COM 929740108 313,459 9,041 56,846 0.0532
2025-05-29 2024-12-31 13F/A-1 WABTEC CORP COM COM 929740108 304,418 -9,928 -3.16 57,714 1.01 0.0516
2025-01-30 2024-12-31 13F WABTEC CORP COM COM 929740108 304,418 -9,928 57,714 0.0516
2024-11-12 2024-09-30 13F WABTEC CORP COM COM 929740108 314,346 -21,137 -6.30 57,139 7.76 0.0515
2024-08-01 2024-06-30 13F WABTEC CORP COM COM 929740108 335,483 7,012 2.13 53,023 10.81 0.0498
2024-05-09 2024-03-31 13F WABTEC CORP COM COM 929740108 328,471 -3,576 -1.08 47,852 13.56 0.0460
2024-02-08 2023-12-31 13F WABTEC CORP COM COM 929740108 332,047 -1,727 -0.52 42,137 18.79 0.0442
2023-11-09 2023-09-30 13F WABTEC CORP COM COM 929740108 333,774 -1,647 -0.49 35,470 -3.57 0.0412
2023-08-08 2023-06-30 13F WABTEC CORP COM COM 929740108 335,421 -5,373 -1.58 36,786 108,091.18 0.0412
2023-05-11 2023-03-31 13F WABTEC CORP COM COM 929740108 340,794 -707 -0.21 34 -99.90 0.0425
2023-02-14 2022-12-31 13F WABTEC CORP COM COM 929740108 341,501 15,305 4.69 34,085 28.45 0.0458
2022-11-10 2022-09-30 13F WABTEC CORP COM COM 929740108 326,196 9,620 3.04 26,536 2.12 0.0395
2022-08-11 2022-06-30 13F WABTEC CORP COM COM 929740108 316,576 34,084 12.07 25,985 -4.35 0.0379
2022-05-12 2022-03-31 13F WABTEC CORP COM COM 929740108 282,492 6,529 2.37 27,167 6.88 0.0350
2022-02-10 2021-12-31 13F WABTEC CORP COM COM 929740108 275,963 5,152 1.90 25,419 8.87 0.0312
2021-11-12 2021-09-30 13F WABTEC CORP COM COM 929740108 270,811 -10,060 -3.58 23,347 1.00 0.0316
2021-08-05 2021-06-30 13F WABTEC CORP COM COM 929740108 280,871 -2,712 -0.96 23,116 2.98 0.0303
2021-05-06 2021-03-31 13F WABTEC CORP COM COM 929740108 283,583 -14,556 -4.88 22,448 2.86 0.0305
2021-02-10 2020-12-31 13F WABTEC CORP COM COM 929740108 298,139 7,482 2.57 21,824 21.34 0.0301
2020-11-12 2020-09-30 13F WABTEC CORP COM COM 929740108 290,657 -6,272 -2.11 17,986 5.22 0.0282
2020-08-13 2020-06-30 13F WABTEC CORP COM COM 929740108 296,929 -25,922 -8.03 17,094 10.01 0.0285
2020-05-06 2020-03-31 13F WABTEC CORP COM COM 929740108 322,851 26,614 8.98 15,539 -32.58 0.0326
2020-02-05 2019-12-31 13F WABTEC CORP COM COM 929740108 296,237 11,070 3.88 23,047 12.47 0.0385
2019-10-23 2019-09-30 13F WABTEC CORP COM COM 929740108 285,167 35,657 14.29 20,492 14.45 0.0374
2019-08-14 2019-06-30 13F WABTEC CORP COM COM 929740108 249,510 48,536 24.15 17,905 20.85 0.0336
2019-05-01 2019-03-31 13F WABTEC CORP COM COM 929740108 200,974 -23,651 -10.53 14,816 -6.11 0.0287
2019-01-31 2018-12-31 13F WABTEC CORP COM COM 929740108 224,625 68,390 43.77 15,780 -3.70 0.0343
2018-11-07 2018-09-30 13F WABTEC CORP COM COM 929740108 156,235 -3,048 -1.91 16,386 4.36 0.0316
2018-08-06 2018-06-30 13F WABTEC CORP COM COM 929740108 159,283 -5,051 -3.07 15,702 17.38 0.0317
2018-05-02 2018-03-31 13F WABTEC CORP COM COM 929740108 164,334 -8,328 -4.82 13,377 -4.86 0.0279
2018-02-09 2017-12-31 13F WABTEC CORP COM COM 929740108 172,662 -7,111 -3.96 14,060 3.25 0.0286
2017-11-06 2017-09-30 13F WABTEC CORP COM COM 929740108 179,773 14,582 8.83 13,618 -9.90 0.0296
2017-08-02 2017-06-30 13F WABTEC CORP COM COM 929740108 165,191 -11,529 -6.52 15,115 9.66 0.0345
2017-05-02 2017-03-31 13F WABTEC CORP COM COM 929740108 176,720 -15,692 -8.16 13,784 -13.71 0.0322
2017-01-27 2016-12-31 13F WABTEC CORP COM COM 929740108 192,412 8,149 4.42 15,974 6.17 0.0405
2016-11-08 2016-09-30 13F WABTEC CORP COM COM 929740108 184,263 7,489 4.24 15,045 21.18 0.0415
2016-08-11 2016-06-30 13F WABTEC CORP COM COM 929740108 176,774 -4,828 -2.66 12,415 -13.78 0.0368
2016-05-02 2016-03-31 13F WABTEC CORP USD.0 COM 929740108 181,602 14,880 8.93 14,399 21.44 0.0447
2016-02-03 2015-12-31 13F WABTEC CORP USD.0 COM 929740108 166,722 39 0.02 11,857 -19.21 0.0382
2015-11-04 2015-09-30 13F WABTEC CORP USD.0 COM 929740108 166,683 6,006 3.74 14,676 -3.08 0.0499
2015-08-04 2015-06-30 13F WABTEC CORP USD.0 COM 929740108 160,677 7,058 4.59 15,142 3.75 0.0483
2015-05-12 2015-03-31 13F WABTEC CORP USD.0 COM 929740108 153,619 13,488 9.63 14,595 19.87 0.0421
2015-02-06 2014-12-31 13F WABTEC CORP USD.0 COM 929740108 140,131 150 0.11 12,176 7.33 0.0354
2014-11-12 2014-09-30 13F WABTEC CORP USD.0 COM 929740108 139,981 -21,103 -13.10 11,344 -14.73 0.0341
2014-08-06 2014-06-30 13F WABTEC CORP USD.0 COM 929740108 161,084 -15,457 -8.76 13,304 -2.76 0.0390
2014-05-06 2014-03-31 13F WABTEC CORP USD.0 COM 929740108 176,541 -10,184 -5.45 13,682 -1.34 0.0406
2014-02-03 2013-12-31 13F WABTEC CORP USD.0 COM 929740108 186,725 -14,993 -7.43 13,868 9.35 0.0409
2013-11-05 2013-09-30 13F WABTEC CORP USD.0 COM 929740108 201,718 4,564 2.31 12,682 20.39 0.0393
2013-08-07 2013-06-30 13F WABTEC CORP USD.0 COM 929740108 197,154 197,154 10,534 0.0338
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.