Westinghouse Air Brake Technologies Corporation
MX ˙ BMV ˙ US9297401088
SecurityMX:WAB / Westinghouse Air Brake Technologies Corporation
InstitutionAdage Capital Partners Gp, L.l.c.
ManagerPhil Gross, Robert Atchinson
Latest Disclosed Ownership129,621 shares
Latest Disclosed Value $ 32,393,584
Adage Capital Partners Gp, L.l.c. reports 81.07% increase in ownership of WAB / Westinghouse Air Brake Technologies Corporation

On May 15, 2026 - Adage Capital Partners Gp, L.l.c. filed a 13F-HR form disclosing ownership of 129,621 shares of Westinghouse Air Brake Technologies Corporation (MX:WAB) valued at $32,393,584 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 71,586 shares of Westinghouse Air Brake Technologies Corporation. This represents a change in shares of 81.07% 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)
2026-05-15 2026-03-31 13F WABTEC COM 929740108 129,621 58,035 81.07 32,394 112.00 0.0500
2026-02-17 2025-12-31 13F WABTEC COM 929740108 71,586 -34,300 -32.39 15,280 -28.01 0.0231
2025-11-14 2025-09-30 13F WABTEC COM 929740108 105,886 -17,100 -13.90 21,227 -17.56 0.0336
2025-08-14 2025-06-30 13F WABTEC COM 929740108 122,986 61,065 98.62 25,747 129.29 0.0434
2025-05-15 2025-03-31 13F WABTEC COM 929740108 61,921 61,921 11,229 0.0208
2025-02-14 2024-12-31 13F WABTEC COM 929740108 0 -52,354 -100.00 0 -100.00
2024-11-14 2024-09-30 13F WABTEC COM 929740108 52,354 -5,100 -8.88 9,516 4.80 0.0168
2024-08-14 2024-06-30 13F WABTEC COM 929740108 57,454 30,614 114.06 9,081 132.23 0.0168
2024-05-15 2024-03-31 13F WABTEC COM 929740108 26,840 26,840 3,910 0.0074
2024-02-14 2023-12-31 13F WABTEC COM 929740108 0 -15,021 -100.00 0 -100.00
2023-11-14 2023-09-30 13F WABTEC COM 929740108 15,021 15,021 1,596 0.0036
2023-08-14 2023-06-30 13F WABTEC COM 929740108 0 -38,421 -100.00 0 -100.00
2023-05-15 2023-03-31 13F WABTEC COM 929740108 38,421 -89,900 -70.06 3,883 -69.69 0.0087
2023-02-14 2022-12-31 13F WABTEC COM 929740108 128,321 24,700 23.84 12,808 51.92 0.0306
2022-11-14 2022-09-30 13F WABTEC COM 929740108 103,621 103,621 8,430 0.0209
2022-08-15 2022-06-30 13F WABTEC COM 929740108 0 -43,421 -100.00 0 -100.00
2022-05-16 2022-03-31 13F WABTEC COM 929740108 43,421 -134,000 -75.53 4,176 -74.45 0.0079
2022-02-14 2021-12-31 13F WABTEC COM 929740108 177,421 100,800 131.56 16,342 147.42 0.0294
2021-11-15 2021-09-30 13F WABTEC COM 929740108 76,621 12,100 18.75 6,605 24.39 0.0130
2021-08-16 2021-06-30 13F WABTEC COM 929740108 64,521 -2,682 -3.99 5,310 -0.19 0.0104
2021-05-17 2021-03-31 13F WABTEC COM 929740108 67,203 -73,432 -52.21 5,320 -48.32 0.0109
2021-02-16 2020-12-31 13F WABTEC COM 929740108 140,635 -62,600 -30.80 10,294 -18.15 0.0224
2020-11-16 2020-09-30 13F WABTEC COM 929740108 203,235 -6,865 -3.27 12,576 3.98 0.0315
2020-08-14 2020-06-30 13F WABTEC COM 929740108 210,100 56,783 37.04 12,095 63.91 0.0310
2020-05-15 2020-03-31 13F WABTEC COM 929740108 153,317 -59,176 -27.85 7,379 -55.37 0.0220
2020-02-14 2019-12-31 13F WABTEC COM 929740108 212,493 20,147 10.47 16,532 19.61 0.0406
2019-11-14 2019-09-30 13F WABTEC COM 929740108 192,346 192,346 13,822 0.0339
2019-02-14 2018-12-31 13F WABTEC COM 929740108 0 -600,000 -100.00 0 -100.00
2018-11-14 2018-09-30 13F WABTEC COM 929740108 600,000 600,000 62,928 0.1404
2017-02-14 2016-12-31 13F WABTEC COM 929740108 0 -93,372 -100.00 0 -100.00
2016-11-14 2016-09-30 13F WABTEC COM 929740108 93,372 93,372 -32.63 7,624 2.96 0.0210
2013-11-14 2013-09-30 13F WABTEC COM 929740108 0 -138,600 -100.00 0 -100.00
2013-08-14 2013-06-30 13F WABTEC COM 929740108 138,600 138,600 7,405 0.0228
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.