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Intuitive Surgical stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions−17.3% to $452.80
Intuitive Surgical (ISRG) stock fell 17% over the last 252 sessions, to $452.80. On the way it reported 0 quarters, its insiders filed no open-market trades (10b5-1 plan sales aside) and 11 Form 144 notices of planned sales, and the company filed 4 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 4, 2026 | Form 144 | Form 144: Craig H. Barratt plans to sell $507K | +9.0% (+7.3% vs SPY) | — | — |
| Nov 2, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.9% (+0.6% vs SPY) | — | — |
| Oct 30, 2026 | Form 144 | Form 144: Fredrik Widman plans to sell $2.0M | −3.8% (−2.0% vs SPY) | +4.3% (+9.1% vs SPY) | — |
| Oct 23, 2026 | Form 144 | Form 144: Patricia Wadors plans to sell $478K | +1.9% (+2.4% vs SPY) | +1.1% (+0.4% vs SPY) | — |
| Oct 23, 2026 | Form 144 | Form 144: Craig H. Barratt plans to sell $510K | +1.9% (+2.4% vs SPY) | +1.1% (+0.4% vs SPY) | — |
| Oct 23, 2026 | Form 144 | Form 144: Guthart Family Trust plans to sell $12.0M | +1.9% (+2.4% vs SPY) | +1.1% (+0.4% vs SPY) | — |
| Oct 23, 2026 | Form 144 | Form 144: Fredrik Widman plans to sell $2.3M | +1.9% (+2.4% vs SPY) | +1.1% (+0.4% vs SPY) | — |
| Sep 15, 2026 | Form 144 | Form 144: Fredrik Widman plans to sell $823K | −0.2% (+0.2% vs SPY) | +6.1% (+4.2% vs SPY) | +11.0% (+8.6% vs SPY) |
| Sep 8, 2026 | Form 144 | Form 144: Mark Brosius plans to sell $254K | −4.6% (−4.1% vs SPY) | +3.0% (+4.2% vs SPY) | +9.9% (+8.5% vs SPY) |
| Aug 11, 2026 | Form 144 | Form 144: Guthart Family Trust plans to sell $7.9M | +2.0% (+2.3% vs SPY) | −0.8% (−0.7% vs SPY) | −10.7% (−9.3% vs SPY) |
| Aug 10, 2026 | Form 144 | Form 144: Gary Loeb plans to sell $152K | +3.8% (+3.8% vs SPY) | +4.1% (+3.7% vs SPY) | −7.8% (−6.9% vs SPY) |
| Aug 10, 2026 | Form 144 | Form 144: Amy L Ladd plans to sell $179K | +3.8% (+3.8% vs SPY) | +4.1% (+3.7% vs SPY) | −7.8% (−6.9% vs SPY) |
| May 28, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.2% (0.0% vs SPY) | −1.2% (−1.5% vs SPY) | −4.3% (−2.7% vs SPY) |
| May 4, 2026 | 8-K | Directors and officers: departures, appointments, pay | −0.2% (−1.0% vs SPY) | −7.4% (−10.3% vs SPY) | −10.5% (−15.4% vs SPY) |
| Dec 18, 2025 | 8-K | Directors and officers: departures, appointments, pay | +1.9% (+1.0% vs SPY) | +2.8% (+0.5% vs SPY) | −7.0% (−8.6% vs SPY) |
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 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 →
Intuitive Surgical: 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.