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Waters stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+23.3% to $457.60
Waters (WAT) stock rose 23% over the last 252 sessions, to $457.60. On the way it reported 4 quarters, its insiders filed 1 open-market trade and 1 Form 144 notice of planned sales, and the company filed 3 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 3, 2026 | Earnings | Earnings: beat the EPS estimate by 2.6% | +2.3% (+2.0% vs SPY) | — | — |
| Aug 21, 2026 | 8-K | Directors and officers: departures, appointments, pay | +1.5% (+1.1% vs SPY) | +4.0% (+2.9% vs SPY) | +4.6% (+3.0% vs SPY) |
| Aug 6, 2026 | Form 144 | Form 144: Christopher A Kuebler plans to sell $1.4M | −0.1% (+0.1% vs SPY) | +4.0% (+3.6% vs SPY) | +3.3% (+2.9% vs SPY) |
| Aug 6, 2026 | Insider sale | Kuebler Christopher A sold $1.4M | −0.1% (+0.1% vs SPY) | +4.0% (+3.6% vs SPY) | +3.3% (+2.9% vs SPY) |
| Aug 4, 2026 | Earnings | Earnings: beat the EPS estimate by 1.4% | +5.5% (+3.7% vs SPY) | +9.4% (+7.4% vs SPY) | +8.0% (+7.4% vs SPY) |
| May 5, 2026 | Earnings | Earnings: beat the EPS estimate by 17.0% | +12.7% (+11.9% vs SPY) | +14.2% (+11.3% vs SPY) | +23.0% (+18.0% vs SPY) |
| Mar 23, 2026 | 8-K | Material definitive agreement | 0.0% (+0.4% vs SPY) | −2.8% (+0.8% vs SPY) | +10.3% (+2.1% vs SPY) |
| Feb 9, 2026 | 8-K | Material definitive agreement | −0.3% (−0.1% vs SPY) | −2.1% (−0.5% vs SPY) | −9.8% (−7.2% vs SPY) |
| Feb 9, 2026 | Earnings | Earnings: beat the EPS estimate by 0.5% | −15.0% (−15.5% vs SPY) | −16.5% (−15.2% vs SPY) | −24.1% (−22.1% vs SPY) |
Insiders’ record here
In the year on the chart, Waters' insiders reported 0 open-market buys ($0) and 1 sale ($1.4M).
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 → Waters: 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.