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Amgen stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+50.1% to $460.42
Amgen (AMGN) stock rose 50% over the last 252 sessions, to $460.42. On the way it reported 4 quarters, its insiders filed no open-market trades (10b5-1 plan sales aside) and 5 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 3, 2026 | Earnings | Earnings: beat the EPS estimate by 11.6% | −0.9% (−1.2% vs SPY) | — | — |
| Oct 27, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.9% (+0.5% vs SPY) | +2.9% (+4.9% vs SPY) | — |
| Aug 13, 2026 | Form 144 | Form 144: Rachna Khosla plans to sell $517K | +0.4% (−0.3% vs SPY) | +6.1% (+6.5% vs SPY) | −9.2% (−8.1% vs SPY) |
| Aug 11, 2026 | Form 144 | Form 144: Rachna Khosla plans to sell $828K | −0.7% (−0.4% vs SPY) | +0.5% (+0.6% vs SPY) | −5.8% (−4.4% vs SPY) |
| Aug 6, 2026 | Form 144 | Form 144: Derek Miller plans to sell $1.6M | −0.7% (−0.6% vs SPY) | +2.0% (+1.7% vs SPY) | +9.1% (+8.7% vs SPY) |
| Aug 6, 2026 | Form 144 | Form 144: Nancy A. Grygiel plans to sell $1.2M | −0.7% (−0.6% vs SPY) | +2.0% (+1.7% vs SPY) | +9.1% (+8.7% vs SPY) |
| Aug 6, 2026 | Form 144 | Form 144: Nancy A. Grygiel plans to sell $1.2M | −0.7% (−0.6% vs SPY) | +2.0% (+1.7% vs SPY) | +9.1% (+8.7% vs SPY) |
| Aug 4, 2026 | Earnings | Earnings: beat the EPS estimate by 12.0% | +2.9% (+1.1% vs SPY) | +9.6% (+7.6% vs SPY) | +15.1% (+14.6% vs SPY) |
| Jul 31, 2026 | 8-K | Material cybersecurity incident | −1.6% (−3.1% vs SPY) | +6.5% (+3.0% vs SPY) | +11.6% (+8.9% vs SPY) |
| May 19, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.3% (−0.8% vs SPY) | +1.6% (−0.6% vs SPY) | +2.1% (0.0% vs SPY) |
| Apr 30, 2026 | Earnings | Earnings: beat the EPS estimate by 8.0% | +2.4% (+1.4% vs SPY) | −2.1% (−5.1% vs SPY) | +0.4% (−5.7% vs SPY) |
| Apr 22, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.8% (+1.2% vs SPY) | −2.3% (−2.4% vs SPY) | −1.7% (−6.1% vs SPY) |
| Feb 19, 2026 | 8-K | Material definitive agreement | −0.2% (−0.9% vs SPY) | +1.0% (+0.3% vs SPY) | −7.7% (−2.5% vs SPY) |
| Feb 3, 2026 | Earnings | Earnings: beat the EPS estimate by 11.9% | −1.8% (−0.9% vs SPY) | +8.7% (+8.9% vs SPY) | +10.3% (+11.8% vs SPY) |
| Jan 30, 2026 | 8-K | Termination of a material agreement | −0.3% (0.0% vs SPY) | +7.0% (+9.4% vs SPY) | +12.4% (+13.6% vs SPY) |
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 1.02 Termination of a material agreement | 2,368 | 0.0% | 51% | +1.1% | ±1.5% |
| 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% |
| 1.05 Material cybersecurity incident | 42 | −0.6% | 33% | −0.2% | ±1.6% |
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 → Amgen: 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.