GATX
GATX Corporation · Industrials · Rental & Leasing Services
Momentum inputs (comparable managers):
holder breadth +18.2% ·
share flow +3.5% ·
net new positions +15.4%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | 0 | 12.86K | $507,360 | n/a | −1 |
| Q2 2026 | 110 | -3 | 27.60M | $4.89B | +4 | −8 |
| Q1 2026 | 117 | -1 | 26.95M | $4.60B | +3 | −5 |
| Q4 2025 | 118 | -2 | 29.48M | $5.00B | +1 | −2 |
| Q3 2025 | 19 | 0 | 13.96M | $2.44B | +1 | −2 |
| Q2 2025 | 17 | +1 | 13.66M | $2.10B | +1 | n/a |
| Q1 2025 | 13 | +2 | 5.18M | $805.04M | +2 | n/a |
| Q4 2024 | 11 | -2 | 5.01M | $775.92M | n/a | −2 |
| Q3 2024 | 12 | +2 | 3.69M | $488.77M | +2 | n/a |
| Q2 2024 | 10 | n/a | 3.74M | $494.68M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 1.34M | -0.1% | $208.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | GAMCO Investors ✦ | 1.30M | -1.6% | $201.93M | 2.2% | ▼ Trim | 4 | SEC ↗ |
| 3 | Wellington Management ✦ | 1.02M | -0.6% | $157.75M | 0.0% | ▼ Trim | 4 | SEC ↗ ×3 |
| 4 | Geode Capital Management ✦ (passive) | 872.53K | +3.3% | $135.51M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 5 | Norges Bank ✦ (passive) | 413.95K | +15.6% | $64.27M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | Millennium Management ✦ | 58.01K | +54.9% | $9.01M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | Citadel Advisors ✦ | 56.75K | New | $8.81M | 0.0% | New | 1 | SEC ↗ ×2 |
| 8 | Marshall Wace ✦ | 41.98K | New | $6.52M | 0.0% | New | 1 | SEC ↗ ×3 |
| 9 | T. Rowe Price ✦ | 29.79K | +12.6% | $4.63M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 10 | D. E. Shaw & Co. ✦ | 21.66K | +38.8% | $3.36M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | Two Sigma Investments ✦ | 21.08K | -28.2% | $3.27M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 12 | AQR Capital Management ✦ | 7.72K | +21.3% | $1.20M | 0.0% | ▲ Add | 4 | SEC ↗ ×5 |
| 13 | Gotham Asset Management ✦ | 2.02K | -0.8% | $314,111 | 0.0% | ▼ Trim | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Citadel Advisors | $8.81M | 0.0% |
| Marshall Wace | $6.52M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 391 holders, 35.20M shares, $5.91B 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 · 300 sh · $53,852
Officer · 500 sh · $89,032
Officer · 1.70K sh · $301,107
Officer · 1.00K sh · $179,519
Officer · 1.90K sh · $342,759
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology