BLAIR WILLIAM & CO/IL
Position in WAB — Westinghouse Air Brake Technologies Corp
CIK 902367
CHICAGO, IL
Position in WAB
as of Mar 31, 2026
· filed May 8, 2026
Position Value
$70,939,202
+$7,981,912 QoQ
Shares Held
283,859
-3.8% QoQ
Ownership
0.167%
of shares outstanding
% of Portfolio
0.25%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 61.94082956971444.ToString("F0")%
Shared 0.ToString("F0")%
None 38.05917043028557.ToString("F0")%
Common Shares in WAB Over Time
Shares Held
Position Value (USD)
Position in Railroads
Industrials · as of Mar 31, 2026BLAIR WILLIAM & CO/IL holds $222,305,260 across 6 Railroads names. WAB ranks #2 (31.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | UNP |
Union Pacific Corp
|
514,829 | $124,907,811 | |
| 2 | WAB |
Westinghouse Air Brake Technologies Corp
This page
|
283,859 | $70,939,202 | |
| 3 | NSC |
Norfolk Southern Corp
|
42,505 | $12,198,935 | |
| 4 | CP |
Canadian Pacific Kansas City Ltd/Cn
|
70,406 | $5,538,135 | |
| 5 | CSX |
Csx Corp
|
134,788 | $5,533,047 | |
| 6 | CNI |
Canadian National Railway Co
|
31,022 | $3,188,130 |
All Filings in WAB
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $70,939,202 | 283,859 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $62,957,290 | 294,951 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $62,594,151 | 312,237 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $73,763,425 | 352,345 | Shares | Sole | 2025-07-24 | |
| 2025-03-31 | $67,577,901 | 372,638 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $76,578,813 | 403,918 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $78,422,121 | 431,436 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $72,161,362 | 456,573 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $69,020,561 | 473,782 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $61,171,891 | 482,048 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $53,923,204 | 507,417 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $56,509,331 | 515,267 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $54,483,669 | 539,122 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $52,513,135 | 526,131 | Shares | Sole | 2023-02-10 | |
| 2022-09-30 | $40,363,185 | 496,167 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $37,776,909 | 460,245 | Shares | Sole | 2022-08-10 | |
| 2022-03-31 | $41,513,703 | 431,670 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $38,959,582 | 422,968 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $36,862,016 | 427,584 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $31,726,979 | 385,504 | Shares | Sole | 2021-08-12 | |
| 2021-03-31 | $6,711,501 | 84,784 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $2,539,527 | 34,693 | Shares | Sole | 2021-02-09 | |
| 2020-09-30 | $2,460,967 | 39,770 | Shares | Sole | 2020-11-06 | |
| 2020-06-30 | $2,286,277 | 39,713 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $3,183,221 | 66,138 | Shares | Sole | 2020-05-11 | |
| No filing history on record for this holder in this stock. | ||||||