Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in GATX held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | STATE FARM MUTUAL AUTOMOBILE INSURANCE CO | 5.4M | $926.7M | 0.0% | 15.287% | 0.73% |
| 2 | BlackRock, Inc. | 4.5M | $767.2M | +3.1% | 12.657% | 0.01% |
| 3 | EARNEST PARTNERS LLC | 2.6M | $446.5M | -3.3% | 7.366% | 1.84% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.0M | $344.1M | β | 5.677% | 0.02% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 1.6M | $269.7M | β | 4.449% | 0.01% |
| 6 | DIMENSIONAL FUND ADVISORS LP | 1.5M | $251.1M | -0.8% | 4.142% | 0.05% |
| 7 | STATE STREET CORP | 1.3M | $225.4M | +2.7% | 3.718% | 0.01% |
| 8 | AMERICAN CENTURY COMPANIES INC | 1.3M | $215.4M | -1.3% | 3.553% | 0.11% |
| 9 | GAMCO INVESTORS, INC. ET AL | 1.1M | $188.0M | -8.1% | 3.101% | 1.85% |
| 10 | BANK OF AMERICA CORP /DE/ | 1.0M | $171.7M | +0.8% | 2.832% | 0.01% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 915K | $156.3M | +3.4% | 2.578% | 0.01% |
| 12 | GABELLI FUNDS LLC | 845K | $144.4M | -7.5% | 2.381% | 0.98% |
| 13 | WELLINGTON MANAGEMENT GROUP LLP | 843K | $143.9M | -16.7% | 2.374% | 0.03% |
| 14 | SEI INVESTMENTS CO | 764K | $130.5M | -0.7% | 2.152% | 0.12% |
| 15 | NORTHERN TRUST CORP | 609K | $104.0M | +1.7% | 1.715% | 0.01% |
| 16 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | 598K | $102.0M | +23.1% | 1.683% | 1.02% |
| 17 | ALLIANCEBERNSTEIN L.P. | 580K | $98.4M | -5.2% | 1.634% | 0.03% |
| 18 | FMR LLC | 548K | $93.5M | +60.1% | 1.543% | 0.01% |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 425K | $72.5M | -0.9% | 1.196% | 0.01% |
| 20 | MORGAN STANLEY | 316K | $53.9M | +2.9% | 0.890% | 0.00% |
| 21 | Ensign Peak Advisors, Inc | 312K | $53.3M | -22.3% | 0.879% | 0.10% |
| 22 | Bank of New York Mellon Corp | 298K | $50.9M | -1.1% | 0.840% | 0.01% |
| 23 | VANGUARD FIDUCIARY TRUST CO | 233K | $39.7M | β | 0.656% | 0.01% |
| 24 | AMERIPRISE FINANCIAL INC | 223K | $38.1M | -1.5% | 0.628% | 0.01% |
| 25 | GOLDMAN SACHS GROUP INC | 207K | $35.3M | -17.2% | 0.583% | 0.00% |
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 GATX β a direct measure of their conviction.
Filings activity in GATX during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new GATX position in Q1 2026
Institutions that fully closed their GATX position in Q1 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 |
|---|---|---|---|---|---|---|
| Q1 2026 | 384 | 0.3% | 95.45% | 0.82 pp | $5.92B | 0.9% |
| Q4 2025 | 385 | +2.9% | 96.27% | 3.10 pp | $5.97B | 3.1% |
| Q3 2025 | 374 | +5.6% | 99.37% | +11.29 pp | $6.16B | +13% |
| Q2 2025 | 354 | 1.7% | 88.08% | +1.47 pp | $5.46B | +1.7% |
| Q1 2025 | 360 | +4.3% | 86.61% | 1.55 pp | $5.37B | 1.8% |
| Q4 2024 | 345 | +9.2% | 88.16% | +15.09 pp | $5.46B | +21% |
| Q3 2024 | 316 | +3.6% | 73.07% | 16.27 pp | $4.53B | 18% |
| Q2 2024 | 305 | β | 89.34% | β | $5.54B | 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 GATX stock.
Based on Q1 2026 13F filings, institutional ownership of GATX Corporation stands at 95.5%, held across 384 reporting institutions.
STATE FARM MUTUAL AUTOMOBILE INSURANCE CO is the largest reported institutional holder of GATX, with approximately 5,427,338 shares worth $0.93B as of Q1 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of GATX.
Our composite Smart Money Score for GATX is 28 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
51 institutions opened new positions in GATX during Q1 2026, while 52 fully exited. 227 added to existing positions and 105 trimmed.
GATX institutional ownership fell by 0.82 percentage points quarter-over-quarter, with a net change of -1 holders.
The top 10 institutions account for 64.3% of all reported 13F value in GATX, and the top 25 account for 86.6%.
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.
GATX Corporation (GATX) Institutional Ownership