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Teradata stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+12.5% to $31.80
Teradata (TDC) stock rose 12% over the last 252 sessions, to $31.80. On the way it reported 4 quarters, its insiders filed 5 open-market trades and 2 Form 144 notices of planned sales, and the company filed 6 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 5, 2026 | Earnings | Earnings: beat the EPS estimate by 21.0% | −5.6% (−1.1% vs SPY) | — | — |
| Sep 15, 2026 | Form 144 | Form 144: Stephen McMillan plans to sell $294K | +0.1% (+0.5% vs SPY) | 0.0% (−1.9% vs SPY) | +3.7% (+1.2% vs SPY) |
| Sep 15, 2026 | Form 144 | Form 144: Michael D Hutchinson plans to sell $1.4M | +0.1% (+0.5% vs SPY) | 0.0% (−1.9% vs SPY) | +3.7% (+1.2% vs SPY) |
| Aug 17, 2026 | 8-K | Material definitive agreement | +3.4% (+4.0% vs SPY) | 0.0% (+1.1% vs SPY) | +5.8% (+8.2% vs SPY) |
| Aug 4, 2026 | Earnings | Earnings: beat the EPS estimate by 23.1% | +6.9% (+5.1% vs SPY) | −14.8% (−16.8% vs SPY) | −11.3% (−11.9% vs SPY) |
| Aug 3, 2026 | 8-K | Directors and officers: departures, appointments, pay | +3.5% (+2.1% vs SPY) | −12.3% (−15.8% vs SPY) | −6.6% (−9.3% vs SPY) |
| Jun 24, 2026 | 8-K | Material definitive agreement | −1.7% (−1.8% vs SPY) | +8.4% (+6.7% vs SPY) | −10.5% (−11.3% vs SPY) |
| May 22, 2026 | Insider sale | McElhatton Todd sold $502K | +2.0% (+1.6% vs SPY) | +3.8% (+2.0% vs SPY) | −5.1% (−4.1% vs SPY) |
| May 19, 2026 | 8-K | Directors and officers: departures, appointments, pay | +1.4% (+0.3% vs SPY) | −1.3% (−3.6% vs SPY) | −5.6% (−7.6% vs SPY) |
| May 12, 2026 | Insider sale | McMillan Stephen sold $634K | −1.8% (−1.6% vs SPY) | +1.4% (+1.5% vs SPY) | +2.3% (+4.2% vs SPY) |
| May 5, 2026 | Earnings | Earnings: beat the EPS estimate by 14.2% | +2.6% (+1.8% vs SPY) | +9.7% (+6.8% vs SPY) | +17.6% (+12.7% vs SPY) |
| Mar 2, 2026 | 8-K | Directors and officers: departures, appointments, pay | −3.5% (−3.5% vs SPY) | −11.7% (−9.7% vs SPY) | −24.1% (−16.1% vs SPY) |
| Feb 26, 2026 | Insider sale | McMillan Stephen sold $1.5M | +1.8% (+2.4% vs SPY) | −5.7% (−4.5% vs SPY) | −14.8% (−7.8% vs SPY) |
| Feb 24, 2026 | Insider sale | Gianoni Michael P sold $749K | +6.5% (+5.8% vs SPY) | +7.8% (+7.2% vs SPY) | −7.4% (−3.3% vs SPY) |
| Feb 11, 2026 | 8-K | Material definitive agreement | −12.2% (−10.6% vs SPY) | −16.5% (−15.4% vs SPY) | −35.4% (−31.0% vs SPY) |
| Feb 11, 2026 | Insider sale | Lynrock Lake LP sold $2.5M | +25.9% (+25.9% vs SPY) | +11.5% (+12.4% vs SPY) | −8.8% (−5.0% vs SPY) |
| Feb 10, 2026 | Earnings | Earnings: beat the EPS estimate by 33.1% | +3.3% (+3.5% vs SPY) | +14.2% (+15.8% vs SPY) | −3.6% (−1.0% vs SPY) |
Insiders’ record here
In the year on the chart, Teradata's insiders reported 0 open-market buys ($0) and 5 sales ($5.9M). Of the 5 old enough to score, 4 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 −20.1%.
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% |
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
| 1.02 Termination of a material agreement | 2,368 | 0.0% | 51% | +1.1% | ±1.5% |
| 2.03 New debt or off-balance-sheet obligation | 13,268 | 0.0% | 50% | +1.2% | ±1.3% |
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 → Teradata: 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.