Westinghouse Air Brake Technologies Corporation
AT ˙ WBAG ˙ US9297401088
€ 226,10 ↓ -3,50 (-1,52%)
2026-06-04
AKTIENPREIS
SecurityAT:WAB / Westinghouse Air Brake Technologies Corporation
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership117,596 shares
Latest Disclosed Value $ 29,388,416
Asset Management One Co., Ltd. reports 8.44% decrease in ownership of WAB / Westinghouse Air Brake Technologies Corporation

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 117,596 shares of Westinghouse Air Brake Technologies Corporation (AT:WAB) valued at $24,836,275 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 128,439 shares of Westinghouse Air Brake Technologies Corporation. This represents a change in shares of -8.44% during the quarter. The current value of the position is $26,588,456 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)
2026-05-08 2026-03-31 13F WABTEC COM 929740108 117,596 -10,843 -8.44 29,388 5.39 0.0867
2026-01-27 2025-12-31 13F WABTEC COM 929740108 128,439 -980 -0.76 27,886 7.48 0.0775
2025-10-22 2025-09-30 13F WABTEC COM 929740108 129,419 1,497 1.17 25,945 -3.12 0.0752
2025-07-31 2025-06-30 13F WABTEC COM 929740108 127,922 -623 -0.48 26,780 14.88 0.0840
2025-04-23 2025-03-31 13F WABTEC COM 929740108 128,545 5,399 4.38 23,312 -1.41 0.0806
2025-01-30 2024-12-31 13F WABTEC COM 929740108 123,146 1,172 0.96 23,644 6.64 0.0812
2024-10-30 2024-09-30 13F WABTEC COM 929740108 121,974 -273 -0.22 22,171 14.75 0.0789
2024-07-18 2024-06-30 13F WABTEC COM 929740108 122,247 -10,205 -7.70 19,321 0.13 0.0739
2024-05-02 2024-03-31 13F WABTEC COM 929740108 132,452 -2,257 -1.68 19,296 12.82 0.0744
2024-01-24 2023-12-31 13F WABTEC COM 929740108 134,709 -1,287 -0.95 17,103 18.34 0.0688
2023-10-19 2023-09-30 13F WABTEC COM 929740108 135,996 -5,937 -4.18 14,452 -7.15 0.0643
2023-07-31 2023-06-30 13F WABTEC COM 929740108 141,933 -5,631 -3.82 15,566 4.38 0.0659
2023-04-25 2023-03-31 13F WABTEC COM 929740108 147,564 -18,035 -10.89 14,913 -10.27 0.0676
2023-02-06 2022-12-31 13F WABTEC COM 929740108 165,599 -5,210 -3.05 16,620 19.60 0.0810
2022-11-04 2022-09-30 13F WABTEC COM 929740108 170,809 -16,491 -8.80 13,895 -9.61 0.0707
2022-07-29 2022-06-30 13F WABTEC COM 929740108 187,300 -1,805 -0.95 15,373 -15.47 0.0722
2022-05-13 2022-03-31 13F WABTEC COM 929740108 189,105 -1,012 -0.53 18,186 4.04 0.0710
2022-02-09 2021-12-31 13F WABTEC COM 929740108 190,117 17,208 9.95 17,479 17.26 0.0609
2021-11-02 2021-09-30 13F WABTEC COM 929740108 172,909 13,102 8.20 14,906 13.34 0.0571
2021-08-03 2021-06-30 13F WABTEC COM 929740108 159,807 8,252 5.44 13,152 9.63 0.0489
2021-05-14 2021-03-31 13F WABTEC COM 929740108 151,555 4,554 3.10 11,997 13.05 0.0476
2021-02-12 2020-12-31 13F WABTEC COM 929740108 147,001 -8,575 -5.51 10,612 10.23 0.0437
2020-11-13 2020-09-30 13F WABTEC COM 929740108 155,576 21,491 16.03 9,627 24.65 0.0443
2020-08-14 2020-06-30 13F WABTEC COM 929740108 134,085 8,391 6.68 7,723 27.65 0.0380
2020-05-14 2020-03-31 13F WABTEC COM 929740108 125,694 1,588 1.28 6,050 -37.34 0.0353
2020-02-14 2019-12-31 13F WABTEC COM 929740108 124,106 -10,442 -7.76 9,655 -0.16 0.0435
2019-11-14 2019-09-30 13F WABTEC COM 929740108 134,548 15,804 13.31 9,670 13.48 0.0466
2019-08-14 2019-06-30 13F WABTEC COM 929740108 118,744 18,691 18.68 8,521 15.51 0.0419
2019-05-15 2019-03-31 13F WABTEC COM 929740108 100,053 -63,000 -38.64 7,377 -35.58 0.0399
2019-02-13 2018-12-31 13F WABTEC COM 929740108 163,053 6,203 3.95 11,452 -30.53 0.0273
2018-11-14 2018-09-30 13F WABTEC COM 929740108 156,850 17,518 12.57 16,486 20.05 0.0338
2018-08-14 2018-06-30 13F WABTEC COM 929740108 139,332 1,433 1.04 13,733 22.34 0.0300
2018-05-14 2018-03-31 13F WABTEC COM 929740108 137,899 1,510 1.11 11,225 1.07 0.0253
2018-02-14 2017-12-31 13F WABTEC COM 929740108 136,389 -2,008 -1.45 11,106 5.94 0.0245
2017-11-14 2017-09-30 13F WABTEC COM 929740108 138,397 732 0.53 10,483 -16.73 0.0246
2017-08-14 2017-06-30 13F WABTEC COM 929740108 137,665 -3,223 -2.29 12,589 14.62 0.0321
2017-05-11 2017-03-31 13F WABTEC COM 929740108 140,888 -12,884 -8.38 10,983 -14.02 0.0288
2017-05-02 2016-12-31 13F/A-1 WABTEC COM 929740108 153,772 126,320 460.15 12,774 487.58 0.0326
2017-02-13 2016-12-31 13F WABTEC COM 929740108 153,772 12,774
2016-11-07 2016-09-30 13F WABTEC Com 929740108 27,452 -298 -1.07 2,174 12.24 0.0323
2016-08-03 2016-06-30 13F WABTEC Com 929740108 27,750 4,670 20.23 1,937 5.96 0.0291
2016-05-05 2016-03-31 13F WABTEC Com 929740108 23,080 864 3.89 1,828 14.32 0.0267
2016-01-28 2015-12-31 13F WABTEC Com 929740108 22,216 -7,190 -24.45 1,599 -36.67 0.0239
2015-11-12 2015-09-30 13F WABTEC Com 929740108 29,406 -12,429 -29.71 2,525 -35.49 0.0384
2015-08-06 2015-06-30 13F WABTEC Com 929740108 41,835 -16,075 -27.76 3,914 -29.87 0.0542
2015-05-11 2015-03-31 13F WABTEC COM 929740108 57,910 -2,973 -4.88 5,581 3.05 0.0689
2015-02-09 2014-12-31 13F WABTEC COM 929740108 60,883 47,566 357.18 5,416 398.71 0.0703
2014-11-05 2014-09-30 13F WABTEC COM 929740108 13,317 3,405 34.35 1,086 42.33 0.0150
2014-05-05 2014-03-31 13F WABTEC COM 929740108 9,912 -3,265 -24.78 763 -21.90 0.0120
2014-02-05 2013-12-31 13F/A-1 WABTEC COM 929740108 13,177 1,436 12.23 977 32.93 0.0151
2014-01-29 2013-12-31 13F WABTEC COM 929740108 13,177 977
2014-02-05 2013-09-30 13F/A-1 WABTEC Com 929740108 11,741 -695 -5.59 735 10.86 0.0111
2013-11-06 2013-09-30 13F WABTEC Com 929740108 11,741 735
2014-02-12 2013-06-30 13F/A-1 WABTEC Com 929740108 12,436 12,436 663 0.0108
2013-08-05 2013-06-30 13F WABTEC Com 929740108 12,436 663
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.