Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in WAB held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | 21.4M | $5.77B | +8.4% | 12.660% | 0.25% |
| 2 | BlackRock, Inc. | 13.9M | $3.74B | +1.0% | 8.215% | 0.06% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 11.1M | $2.99B | +0.0% | 6.562% | 0.06% |
| 4 | STATE STREET CORP | 7.9M | $2.13B | +2.1% | 4.680% | 0.03% |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 7.2M | $1.93B | +0.2% | 4.245% | 0.09% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 4.5M | $1.21B | -0.8% | 2.678% | 0.06% |
| 7 | FIL Ltd | 3.5M | $950.8M | +0.7% | 2.088% | 0.68% |
| 8 | NORDEA INVESTMENT MANAGEMENT AB | 3.1M | $835.5M | -13.0% | 1.831% | 0.68% |
| 9 | Invesco Ltd. | 2.8M | $753.5M | +31.1% | 1.655% | 0.06% |
| 10 | MORGAN STANLEY | 2.5M | $671.6M | +1.1% | 1.475% | 0.04% |
| 11 | Select Equity Group, L.P. | 2.4M | $652.9M | -17.2% | 1.434% | 3.23% |
| 12 | Boston Partners | 2.0M | $543.5M | +3.2% | 1.195% | 0.48% |
| 13 | NORGES BANK | 1.9M | $511.4M | β | 1.123% | 0.05% |
| 14 | NORTHERN TRUST CORP | 1.7M | $466.7M | +0.4% | 1.025% | 0.05% |
| 15 | DIMENSIONAL FUND ADVISORS LP | 1.7M | $462.2M | -0.6% | 1.015% | 0.08% |
| 16 | WELLINGTON MANAGEMENT GROUP LLP | 1.7M | $450.4M | -33.4% | 0.989% | 0.08% |
| 17 | Amundi | 1.6M | $426.2M | +43.9% | 0.936% | 0.10% |
| 18 | JPMORGAN CHASE & CO | 1.5M | $407.8M | +10.0% | 0.900% | 0.02% |
| 19 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.4M | $390.5M | -11.6% | 0.846% | 0.12% |
| 20 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | 1.4M | $384.2M | +2.4% | 0.844% | 0.07% |
| 21 | AQR CAPITAL MANAGEMENT LLC | 1.4M | $369.6M | +2.0% | 0.812% | 0.13% |
| 22 | Vontobel Holding Ltd. | 1.2M | $330.9M | +531.5% | 0.727% | 1.05% |
| 23 | GOLDMAN SACHS GROUP INC | 1.2M | $326.1M | +1.9% | 0.716% | 0.03% |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.1M | $298.6M | -1.1% | 0.656% | 0.04% |
| 25 | AMERICAN CENTURY COMPANIES INC | 1.1M | $287.3M | -13.0% | 0.631% | 0.13% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in WAB β a direct measure of their conviction.
Filings activity in WAB during Q2 2026, grouped by how each filer changed its position.
Institutions that opened a new WAB position in Q2 2026
Institutions that fully closed their WAB position in Q2 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 1,196 | +3.4% | 92.95% | +0.78 pp | $39.23B | +9.7% |
| Q1 2026 | 1,157 | +5.3% | 92.17% | +0.05 pp | $35.77B | +16% |
| Q4 2025 | 1,099 | +3.1% | 92.12% | +0.79 pp | $30.83B | +6.9% |
| Q3 2025 | 1,066 | 3.4% | 91.33% | 0.84 pp | $28.85B | 4.6% |
| Q2 2025 | 1,103 | +9.5% | 92.17% | +0.75 pp | $30.22B | +17% |
| Q1 2025 | 1,007 | 2.1% | 91.42% | +21.86 pp | $25.93B | 5.7% |
| Q4 2024 | 1,029 | +8.7% | 69.56% | +2.10 pp | $27.50B | +7.5% |
| Q3 2024 | 947 | β | 67.46% | β | $25.58B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying WAB stock.
Based on Q2 2026 13F filings, institutional ownership of Westinghouse Air Brake Technologies Corporation stands at 93.0%, held across 1,196 reporting institutions.
FMR LLC is the largest reported institutional holder of WAB, with approximately 21,383,543 shares worth $5.77B as of Q2 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of WAB.
Our composite Smart Money Score for WAB is 49 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
105 institutions opened new positions in WAB during Q2 2026, while 80 fully exited. 842 added to existing positions and 200 trimmed.
WAB institutional ownership rose by 0.78 percentage points quarter-over-quarter, with a net change of +39 holders.
The top 10 institutions account for 53.5% of all reported 13F value in WAB, and the top 25 account for 69.6%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Westinghouse Air Brake Technologies Corporation (WAB) Institutional Ownership