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Merck stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+76.1% to $146.73
Merck (MRK) stock rose 76% over the last 252 sessions, to $146.73. On the way it reported 4 quarters, its insiders filed no open-market trades (10b5-1 plan sales aside) and 10 Form 144 notices of planned sales, and the company filed 1 material 8-K. 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 2, 2026 | Form 144 | Form 144: David M Williams plans to sell $3.2M | −0.8% (−0.3% vs SPY) | −1.9% (+0.9% vs SPY) | — |
| Oct 29, 2026 | Earnings | Earnings: beat the EPS estimate by 19.6% | +3.8% (+4.1% vs SPY) | +6.5% (+7.2% vs SPY) | — |
| Oct 13, 2026 | 8-K | Paul J. Diaz Elected to Merck & Co., Inc., Rahway, N.J., USA Board of Directors | −2.4% (−2.4% vs SPY) | −1.2% (+0.3% vs SPY) | — |
| Aug 13, 2026 | Form 144 | Form 144: Chirfi Guindo plans to sell $1.4M | +2.0% (+1.3% vs SPY) | +13.6% (+14.0% vs SPY) | +8.0% (+9.0% vs SPY) |
| Aug 12, 2026 | Form 144 | Form 144: Jennifer L Zachary plans to sell $10.7M | +1.9% (+1.7% vs SPY) | +3.6% (+4.0% vs SPY) | +10.4% (+12.1% vs SPY) |
| Aug 12, 2026 | Form 144 | Form 144: Richard Robert Deluca Jr. plans to sell $1.5M | +1.9% (+1.7% vs SPY) | +3.6% (+4.0% vs SPY) | +10.4% (+12.1% vs SPY) |
| Aug 11, 2026 | Form 144 | Form 144: Richard Robert Deluca Jr. plans to sell $1.7M | −0.4% (−0.1% vs SPY) | +3.8% (+3.8% vs SPY) | +11.9% (+13.3% vs SPY) |
| Aug 10, 2026 | Form 144 | Form 144: Richard Robert Deluca Jr. plans to sell $2.7M | +1.8% (+1.8% vs SPY) | +5.5% (+5.1% vs SPY) | +14.4% (+15.3% vs SPY) |
| Aug 6, 2026 | Form 144 | Form 144: Richard Robert Deluca Jr. plans to sell $789K | 0.0% (+0.2% vs SPY) | +3.5% (+3.2% vs SPY) | +17.1% (+16.7% vs SPY) |
| Aug 6, 2026 | Form 144 | Form 144: Chirfi Guindo plans to sell $2.0M | 0.0% (+0.2% vs SPY) | +3.5% (+3.2% vs SPY) | +17.1% (+16.7% vs SPY) |
| Aug 5, 2026 | Form 144 | Form 144: David Maraldo plans to sell $2.4M | +0.3% (+0.5% vs SPY) | +1.9% (+2.0% vs SPY) | +17.0% (+17.7% vs SPY) |
| Aug 5, 2026 | Form 144 | Form 144: David M Williams plans to sell $6.8M | +0.3% (+0.5% vs SPY) | +1.9% (+2.0% vs SPY) | +17.0% (+17.7% vs SPY) |
| Aug 4, 2026 | Earnings | Earnings: beat the EPS estimate by 49.4% | +0.2% (−1.6% vs SPY) | +2.4% (+0.4% vs SPY) | +16.0% (+15.4% vs SPY) |
| Apr 30, 2026 | Earnings | Earnings: beat the EPS estimate by 13.2% | −1.6% (−2.6% vs SPY) | +2.3% (−0.8% vs SPY) | +6.8% (+0.6% vs SPY) |
| Feb 3, 2026 | Earnings | Earnings: beat the EPS estimate by 1.5% | +2.2% (+3.0% vs SPY) | +3.7% (+3.9% vs SPY) | +5.9% (+7.4% vs SPY) |
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 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 → Merck: 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.