Westinghouse AIR Brake Technologies Corp. 13F holders
Of the 44 funds followed here, 9 reported a position in Westinghouse AIR Brake Technologies Corp. in a 13F for the quarter ended 30 June 2026. The largest: FMR LLC, 21.4 million shares worth $5.77 billion, 0.3% of its reported book. New this quarter: Bridgewater Associates. Sold out: Renaissance Technologies, Baillie Gifford.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| FMR LLC | 21,383,543 | $5.77 billion | 0.3% | +1,661,114 | added | 30 June 2026 | 13F |
| Geode Capital Management | 4,522,854 | $1.21 billion | 0.1% | -34,520 | trimmed | 30 June 2026 | 13F |
| Norges Bank | 1,896,763 | $511.4 million | 0.1% | held | 30 June 2026 | 13F | |
| Alyeska | 367,726 | $99.1 million | 0.3% | -252,252 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 136,818 | $36.9 million | 0.0% | +61,295 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 112,538 | $30.3 million | 0.0% | -201,368 | trimmed | 30 June 2026 | 13F |
| Millennium Management | 95,343 | $25.7 million | 0.0% | +4,766 | added | 30 June 2026 | 13F |
| Duquesne Family Office | 56,595 | $15.3 million | 0.3% | -38,300 | trimmed | 30 June 2026 | 13F |
| Bridgewater Associates | 11,749 | $3.2 million | 0.0% | +11,749 | new | 30 June 2026 | 13F |
| Renaissance Technologies | 0 | $0 | 0.0% | -116,095 | exited | 30 June 2026 | 13F |
| Baillie Gifford | 0 | $0 | 0.0% | -54,000 | exited | 30 June 2026 | 13F |
Value is what the fund reported. Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.
Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 6 August 2026 | 13G/A | Fmr Llc and 3 others | 21.6 million | 12.7% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 6 May 2026 | 13G/A | Fmr Llc and 3 others | 19.7 million | 11.6% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 30 April 2026 | 13G | Vanguard Capital Management and 1 other | 12.8 million | 7.5% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 27 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 7 November 2025 | 13G/A | Fmr Llc and 3 others | 17.4 million | 10.2% | 31 October 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 5 November 2025 | 13G/A | Fmr Llc and 3 others | 16.3 million | 9.5% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder. Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.
Fails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 28 August 2026 | 118 | $297.28 | SEC |
| 20 August 2026 | 1,710 | $292.23 | SEC |
| 18 August 2026 | 198 | $300.65 | SEC |
| 7 August 2026 | 624 | $295.23 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period. Largest in the window: 1,710 on 20 August 2026. A fail is an operational fact about settlement, not a position.
Source
Each fund's 13F-HR on EDGAR, linked per row; positions matched to WAB by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.
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