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Gatx stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+21.3% to $182.74
Gatx (GATX) stock rose 21% over the last 252 sessions, to $182.74. On the way it reported 4 quarters, its insiders filed 11 open-market trades and 9 Form 144 notices of planned sales, and the company filed 5 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Nov 6, 2026 | Form 144 | Form 144: Anne L Arvia plans to sell $174K | −2.0% (−2.3% vs SPY) | — | — |
| Nov 4, 2026 | Form 144 | Form 144: Kevin J Hillesland plans to sell $356K | +2.6% (+1.0% vs SPY) | — | — |
| Nov 4, 2026 | Form 144 | Form 144: Kim K Nero plans to sell $4.5M | +2.6% (+1.0% vs SPY) | — | — |
| Nov 4, 2026 | Insider sale | Hillesland Kevin sold $262K | +2.6% (+1.0% vs SPY) | — | — |
| Nov 3, 2026 | Form 144 | Form 144: Robert C Lyons plans to sell $2.3M | −1.5% (−1.8% vs SPY) | — | — |
| Nov 3, 2026 | Insider sale | Lyons Robert C sold $897K | −1.5% (−1.8% vs SPY) | — | — |
| Oct 29, 2026 | Earnings | Earnings: beat the EPS estimate by 18.7% | +6.6% (+7.0% vs SPY) | +12.2% (+12.9% vs SPY) | — |
| Sep 11, 2026 | Form 144 | Form 144: Geoffrey D Phillips plans to sell $444K | +0.9% (+0.1% vs SPY) | +2.3% (+1.7% vs SPY) | −6.7% (−9.6% vs SPY) |
| Sep 11, 2026 | Insider sale | Phillips Geoffrey sold $444K | +0.9% (+0.1% vs SPY) | +2.3% (+1.7% vs SPY) | −6.7% (−9.6% vs SPY) |
| Aug 26, 2026 | Form 144 | Form 144: Eren Doygun plans to sell $180K | −0.4% (−0.4% vs SPY) | −3.2% (−2.7% vs SPY) | +2.7% (+2.3% vs SPY) |
| Aug 26, 2026 | Insider sale | Doygun Eren sold $180K | −0.4% (−0.4% vs SPY) | −3.2% (−2.7% vs SPY) | +2.7% (+2.3% vs SPY) |
| Aug 14, 2026 | Form 144 | Form 144: John M. Sbragia plans to sell $343K | +0.8% (+1.0% vs SPY) | −1.4% (+0.5% vs SPY) | −1.8% (+0.5% vs SPY) |
| Aug 14, 2026 | Insider sale | Sbragia John sold $343K | +0.8% (+1.0% vs SPY) | −1.4% (+0.5% vs SPY) | −1.8% (+0.5% vs SPY) |
| Aug 5, 2026 | Form 144 | Form 144: Thomas A Ellman plans to sell $3.3M | −1.3% (−1.1% vs SPY) | −2.4% (−2.3% vs SPY) | −3.4% (−2.6% vs SPY) |
| Aug 5, 2026 | Insider sale | Ellman Thomas A. sold $3.3M | −1.3% (−1.1% vs SPY) | −2.4% (−2.3% vs SPY) | −3.4% (−2.6% vs SPY) |
| Aug 3, 2026 | Form 144 | Form 144: Jennifer van Aken plans to sell $307K | +0.8% (−0.6% vs SPY) | −0.7% (−4.1% vs SPY) | −2.2% (−4.9% vs SPY) |
| Aug 3, 2026 | Insider sale | Van Aken Jennifer sold $307K | +0.8% (−0.6% vs SPY) | −0.7% (−4.1% vs SPY) | −2.2% (−4.9% vs SPY) |
| Jul 30, 2026 | Earnings | Earnings: beat the EPS estimate by 15.5% | 0.0% (−1.6% vs SPY) | −1.2% (−6.6% vs SPY) | −1.8% (−7.3% vs SPY) |
| May 21, 2026 | 8-K | Material definitive agreement | −1.9% (−2.3% vs SPY) | −2.2% (−4.1% vs SPY) | +3.3% (+4.2% vs SPY) |
| May 7, 2026 | Earnings | Earnings: beat the EPS estimate by 3.3% | −8.7% (−8.3% vs SPY) | −10.5% (−11.6% vs SPY) | −15.4% (−15.9% vs SPY) |
| Apr 28, 2026 | 8-K | Directors and officers: departures, appointments, pay | −1.9% (−1.8% vs SPY) | −1.2% (−2.9% vs SPY) | −14.7% (−20.5% vs SPY) |
| Mar 16, 2026 | 8-K | Material definitive agreement | −0.7% (−1.7% vs SPY) | −2.3% (−0.4% vs SPY) | +15.2% (+10.2% vs SPY) |
| Mar 3, 2026 | 8-K | Completed acquisition or disposition | −0.7% (+0.2% vs SPY) | −3.8% (−2.6% vs SPY) | −8.3% (−3.1% vs SPY) |
| Feb 20, 2026 | Insider sale | Zmudka Robert sold $1.0M | +4.9% (+4.2% vs SPY) | −0.8% (−1.5% vs SPY) | −13.4% (−8.3% vs SPY) |
| Feb 20, 2026 | Insider sale | Young Jeffery R. sold $509K | +4.9% (+4.2% vs SPY) | −0.8% (−1.5% vs SPY) | −13.4% (−8.3% vs SPY) |
| Feb 20, 2026 | Insider sale | Glassberg Brian L sold $397K | +4.9% (+4.2% vs SPY) | −0.8% (−1.5% vs SPY) | −13.4% (−8.3% vs SPY) |
| Feb 19, 2026 | Earnings | Earnings: beat the EPS estimate by 0.7% | −0.6% (−0.4% vs SPY) | −0.8% (−1.8% vs SPY) | −13.7% (−9.7% vs SPY) |
| Jan 5, 2026 | 8-K | Material definitive agreement | +1.1% (+0.4% vs SPY) | +2.9% (+1.3% vs SPY) | +7.7% (+6.8% vs SPY) |
| Dec 10, 2025 | Insider sale | Van Aken Jennifer sold $295K | +1.5% (+0.8% vs SPY) | +3.4% (+4.0% vs SPY) | +6.9% (+5.0% vs SPY) |
Insiders’ record here
In the year on the chart, Gatx's insiders reported 0 open-market buys ($0) and 11 sales ($7.9M). Of the 6 old enough to score, 3 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale +0.7%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±1.4% |
| 2.01 Completed acquisition or disposition | 2,671 | +0.1% | 52% | +1.2% | ±1.6% |
| 2.03 New debt or off-balance-sheet obligation | 13,268 | 0.0% | 50% | +1.2% | ±1.3% |
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Report card: every quarter against the estimate → Gatx: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.