WAB
Westinghouse Air Brake Technologies Corporation · Industrials · Railroads
Momentum inputs (comparable managers):
holder breadth -10.0% ·
share flow +2.6% ·
net new positions -11.1%
· formula
Concentrated accumulation: rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | 0 | 287.56K | $81.69M | n/a | n/a |
| Q2 2026 | 159 | -3 | 122.29M | $32.96B | +4 | −8 |
| Q1 2026 | 166 | +3 | 123.42M | $30.77B | +6 | −4 |
| Q4 2025 | 162 | -1 | 131.09M | $27.98B | +1 | −1 |
| Q3 2025 | 24 | -1 | 79.07M | $15.85B | n/a | −2 |
| Q2 2025 | 23 | +1 | 73.36M | $15.35B | +1 | n/a |
| Q1 2025 | 19 | +1 | 26.16M | $4.74B | +1 | n/a |
| Q4 2024 | 18 | -2 | 27.71M | $5.25B | n/a | −2 |
| Q3 2024 | 19 | +1 | 19.50M | $3.54B | +1 | n/a |
| Q2 2024 | 18 | n/a | 23.81M | $3.76B | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | T. Rowe Price ✦ | 7.92M | +24.9% | $1.50B | 0.2% | ▲ Add | 3 | SEC ↗ ×2 |
| 2 | State Street Global Advisors ✦ (passive) | 7.49M | n/a | $1.42B | 0.1% | n/c | 1 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 4.12M | +0.8% | $778.48M | 0.1% | ▲ Add | 3 | SEC ↗ ×2 |
| 4 | Wellington Management ✦ | 3.14M | -17.1% | $595.36M | 0.1% | ▼ Trim | 3 | SEC ↗ ×7 |
| 5 | Norges Bank ✦ (passive) | 1.90M | +0.6% | $361.17M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | AQR Capital Management ✦ | 923.28K | +28.8% | $175.04M | 0.2% | ▲ Add | 3 | SEC ↗ ×5 |
| 7 | Arrowstreet Capital ✦ | 571.32K | -3.8% | $108.32M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 8 | Millennium Management ✦ | 380.42K | +133.6% | $72.12M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 9 | Duquesne Family Office ✦ | 280.06K | +55.9% | $53.10M | 1.5% | ▲ Add | 3 | SEC ↗ |
| 10 | Two Sigma Investments ✦ | 237.73K | -64.7% | $45.07M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 11 | Renaissance Technologies ✦ | 215.40K | -44.5% | $40.84M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 12 | Baillie Gifford ✦ | 152.78K | -5.9% | $28.97M | 0.0% | ▼ Trim | 3 | SEC ↗ ×3 |
| 13 | D. E. Shaw & Co. ✦ | 135.33K | -18.9% | $25.66M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 14 | Point72 Asset Management ✦ | 131.70K | -24.3% | $24.97M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 15 | Citadel Advisors ✦ | 71.08K | +210.4% | $13.48M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 16 | Bridgewater Associates ✦ | 19.62K | +883.4% | $3.72M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 17 | Gotham Asset Management ✦ | 19.32K | +183.9% | $3.66M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | Fisher Asset Management ✦ | 2.00K | -63.6% | $379,819 | 0.0% | ▼ Trim | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Marshall Wace | $17.18M | was 0.0% |
| Adage Capital Partners | $9.52M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,145 holders, 154.94M shares, $35.41B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer, Director · 345 sh · $100,855
Officer, Director · 259 sh · $75,465
Officer, Director · 222 sh · $65,303
Officer, Director · 261 sh · $76,562
Officer, Director · 614 sh · $179,511
Officer, Director · 84 sh · $24,611
Officer, Director · 278 sh · $81,042
Officer, Director · 42 sh · $12,064
Officer, Director · 36 sh · $10,373
Officer, Director · 33 sh · $9,569
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology