Gary S Guthart Insider Trading Activity
Gary S Guthart has been net-selling over the last 12 months with 0 purchases and 8 sales across 1 company.
ISRG is the most-traded position with 8 trades. The largest single transaction was a sale of ISRG for $15.8M on Oct 24, 2025.
Performance Scorecard
Forward stock performance after each transaction by Gary S Guthart. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | +2.4% | 75% | 8 |
| 90 days | — | +0.0% | 63% | 8 |
| 120 days | — | +3.4% | 63% | 8 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersISRG · INTUITIVE SURGICAL INC
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Jan 27, 2026 | ISRG | Sell | 24,500 | $530.10 | $13.0M | −86.9% | Director | |
Jan 27, 2026 | ISRG | Sell | 1,400 | $531.53 | $744K | −8.2% | Director | |
Dec 1, 2025 | ISRG | Sell | 22,806 | $570.89 | $13.0M | −89.4% | Executive Chair of the Board o | |
Oct 24, 2025 | ISRG | Sell | 28,800 | $547.56 | $15.8M | −51.6% | Executive Chair of the Board o | |
Oct 24, 2025 | ISRG | Sell | 1,400 | $546.35 | $765K | −7.6% | Executive Chair of the Board o | |
Aug 29, 2025 | ISRG | Sell | 29,360 | $472.49 | $13.9M | −59.7% | Executive Chair of the Board o | |
Jul 28, 2025 | ISRG | Sell | 7,893 | $498.64 | $3.9M | −37.4% | Executive Chair of the Board o | |
Jul 28, 2025 | ISRG | Sell | 1,400 | $495.23 | $693K | −7.0% | Executive Chair of the Board o |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| ISRG | INTUITIVE SURGICAL INC | 8 | $61.8M |
Other insiders at INTUITIVE SURGICAL INC
5 other tracked filers at ISRG.