Westinghouse Air Brake Technologies Corporation
Westinghouse Air Brake Technologies Corporation (WAB) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · WAB · as of Sep 30, 2024
Ownership Breakdown
1,013
Institutional Holders
▲ 2 vs Q2
$28.21B
Total Inst. Value
▲ $2.97B vs Q2
169.68M
Shares Outstanding
freeFloat 98.76%
155.38M
13F Shares Held
▼ 4.34M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
WAB largest shareholders · institutional ownership
Q3 2024 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC railroad equipment | 19.67M | 11.34% | 11.34% | $3.57T | Nov 13, 2024 | ▲ 32.9K |
BLACKROCK, INC. railroad equipment | 15.48M | 8.93% | 8.93% | $2.81T | Nov 13, 2024 | NEW |
STATE STREET CORP railroad equipment | 7.22M | 4.17% | 4.17% | $1.31T | Nov 14, 2024 | ▲ 51.3K |
FMR LLC railroad equipment | 6.93M | 3.99% | 3.99% | $1.26T | Nov 13, 2024 | ▲ 4.30M |
PRICE T ROWE ASSOCIATES INC /MD/ railroad equipment | 6.34M | 3.65% | 3.65% | $1.15T | Nov 14, 2024 | ▼ 2.07M |
SELECT EQUITY GROUP, L.P. railroad equipment | 5.68M | 3.28% | 3.28% | $1.03T | Nov 14, 2024 | ▲ 20.1K |
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ railroad equipment | 4.69M | 2.71% | 2.71% | $852.91B | Nov 12, 2024 | ▲ 278.3K |
INVESCO LTD. railroad equipment | 4.49M | 2.59% | 2.59% | $816.01B | Nov 12, 2024 | ▲ 727.1K |
GEODE CAPITAL MANAGEMENT, LLC railroad equipment | 4.08M | 2.36% | 2.36% | $739.84B | Nov 12, 2024 | ▲ 19.8K |
WELLINGTON MANAGEMENT GROUP LLP railroad equipment | 3.79M | 2.18% | 2.18% | $688.18B | Nov 14, 2024 | ▼ 1.42M |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2024 vs prior quarter
Q3 2024
26
Increased
+7.04M shares1
New Positions
first time holders22
Decreased
−7.14M shares0
Sold Out
fully exitedNet shares change (top 50)
98.2K
+7.04M / −7.14M
Net new holders
+5
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
WAB insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
8
Buy transactions
16
Sell transactions
0.50
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Babcock Beverley A director | May 13, 2026 | Award | 765 | — | — | 4.7K | Form 4 ↗ |
Perez Juan R. director | May 13, 2026 | Award | 765 | — | — | 2.0K | Form 4 ↗ |
Klee Ann R. director | May 13, 2026 | Award | 765 | — | — | 12.6K | Form 4 ↗ |
Hehir Brian director | May 13, 2026 | Award | 765 | — | — | 21.4K | Form 4 ↗ |
Harty Linda S director | May 13, 2026 | Award | 765 | — | — | 12.5K | Form 4 ↗ |
Foster Byron S. director | May 13, 2026 | Award | 765 | — | — | 8.2K | Form 4 ↗ |
BANKS LEE C director | May 13, 2026 | Award | 765 | — | — | 13.6K | Form 4 ↗ |
DeNinno David L Exec VP, General Counsel, Sec. | May 5, 2026 | Sale | 2,500 | $265.48 | $663.7K | 58.1K | Form 4 ↗ |
Sbrocco Gregory EVP Operations | May 5, 2026 | X-InTheMoney | 3,727 | $263.44 | $981.8K | 25.7K | Form 4 ↗ |
Sbrocco Gregory EVP Operations | May 5, 2026 | J-Other | 3,727 | $263.44 | $981.8K | 22.0K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Westinghouse Air Brake Technologies Corporation (WAB) is primarily owned by institutional investors, who hold approximately 91.6% of total shares outstanding. Company insiders own approximately 1.24%, while retail and public investors account for the remaining 7.19%.
The largest institutional shareholder of Westinghouse Air Brake Technologies Corporation is VANGUARD GROUP INC, holding approximately 19.67 million shares — equal to 11.34% of outstanding shares — as of September 30, 2024.
A total of 1,013 institutional investors currently hold WAB stock, with a combined institutional value of approximately $28.21 billion as of the most recent 13F filing period.
Frequently asked questions
WAB ownershipWestinghouse Air Brake Technologies Corporation (WAB) is primarily owned by institutional investors, who hold approximately 91.6% of shares. The largest shareholder is VANGUARD GROUP INC with a 11.34% stake. Company insiders hold 1.24%. Data sourced from SEC Form 13F as of September 30, 2024.