Mark Brosius insider trades: Intuitive Surgical (ISRG) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Mark reports to the SEC
Open-market buys and sales
32 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Oct 30, 2026 | ISRG | ↓ Sell | 124 | $450.77 | $56K | Direct | Nov 2, 2026 (3d) |
| Oct 28, 2026 | ISRG | ↓ Sell | 183 | $448.33 | $82K | Direct | Oct 28, 2026 (0d) |
| Sep 11, 2026 | ISRG | ↓ Sell | 48 | $357.10 | $17K | Direct | Sep 11, 2026 (0d) |
| Aug 21, 2026 | ISRG | ↓ Sell | 154 | $385.97 | $59K | Direct | Aug 21, 2026 (0d) |
| Aug 19, 2026 | ISRG | ↓ Sell | 231 | $392.98 | $91K | Direct | Aug 19, 2026 (0d) |
| Jul 31, 2026 | ISRG | ↓ Sell | 56 | $348.91 | $20K | Direct | Jul 31, 2026 (0d) |
| Jul 29, 2026 | ISRG | ↓ Sell | 84 | $356.60 | $30K | Direct | Jul 29, 2026 (0d) |
| Jun 12, 2026 | ISRG | ↓ Sell | 48 | $413.19 | $20K | Direct | Jun 12, 2026 (0d) |
| Jun 10, 2026 | ISRG | ↓ Sell | 69 | $421.80 | $29K | Direct | Jun 10, 2026 (0d) |
| May 22, 2026 | ISRG | ↓ Sell | 36 | $442.92 | $16K | Direct | May 22, 2026 (0d) |
| May 20, 2026 | ISRG | ↓ Sell | 54 | $434.52 | $23K | Direct | May 20, 2026 (0d) |
| Mar 9, 2026 | ISRG | ↓ Sell | 1,293 | $487.61 | $630K | Direct | Mar 10, 2026 (1d) |
| Mar 5, 2026 | ISRG | ↓ Sell | 3,658 | $496.19 | $1.8M | Direct | Mar 5, 2026 (0d) |
| Dec 15, 2025 | ISRG | ↓ Sell | 464 | $548.49 | $254K | Direct | Dec 17, 2025 (2d) |
| Dec 15, 2025 | ISRG | ↓ Sell | 4,964 | $547.47 | $2.7M | Direct | Dec 15, 2025 (0d) |
| Jun 6, 2025 | ISRG | ↓ Sell | 431 | $561.91 | $242K | Direct | Jun 6, 2025 (0d) |
| Jun 4, 2025 | ISRG | ↓ Sell | 645 | $550.60 | $355K | Direct | Jun 4, 2025 (0d) |
| May 16, 2025 | ISRG | ↓ Sell | 42 | $561.81 | $24K | Direct | May 16, 2025 (0d) |
| May 14, 2025 | ISRG | ↓ Sell | 66 | $558.88 | $37K | Direct | May 14, 2025 (0d) |
| Mar 7, 2025 | ISRG | ↓ Sell | 489 | $533.18 | $261K | Direct | Mar 7, 2025 (0d) |
| Mar 6, 2025 | ISRG | ↓ Sell | 1,476 | $558.94 | $825K | Direct | Mar 6, 2025 (0d) |
| Mar 3, 2025 | ISRG | ↓ Sell | 492 | $573.78 | $282K | Direct | Mar 3, 2025 (0d) |
| Oct 28, 2024 | ISRG | ↓ Sell | 44 | $513.83 | $23K | Direct | Oct 28, 2024 (0d) |
| Oct 24, 2024 | ISRG | ↓ Sell | 2,172 | $514.95 | $1.1M | Direct | Oct 24, 2024 (0d) |
| Sep 12, 2024 | ISGR | ↓ Sell | 2,115 | $491.91 | $1.0M | Direct | Sep 16, 2024 (4d) |
| May 17, 2024 | ISRG | ↓ Sell | 238 | $397.73 | $95K | Direct | May 17, 2024 (0d) |
| May 15, 2024 | ISRG | ↓ Sell | 525 | $385.74 | $203K | Direct | May 15, 2024 (0d) |
| Mar 11, 2024 | ISRG | ↓ Sell | 392 | $391.09 | $153K | Direct | Mar 11, 2024 (0d) |
| Mar 7, 2024 | ISRG | ↓ Sell | 588 | $393.35 | $231K | Direct | Mar 7, 2024 (0d) |
| Feb 16, 2024 | ISRG | ↓ Sell | 92 | $380.10 | $35K | Direct | Feb 16, 2024 (0d) |
| Feb 13, 2024 | ISRG | ↓ Sell | 60 | $380.80 | $23K | Direct | Feb 13, 2024 (0d) |
| Feb 1, 2024 | ISRG | ↓ Sell | 39 | $378.41 | $15K | Direct | Feb 5, 2024 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other ISRG insiders
Open-market trades in the last 12 months
About Mark Brosius's insider trades
Mark Brosius is EVP & Chief Mfg and Supply Cha at Intuitive Surgical (ISRG). Since Feb 1, 2024, Mark has reported no open-market purchases and 32 sales worth $10.8M on SEC Form 4. In the last 12 months: 15 sales ($5.9M).
Their filings also include option exercises (12 filings), shares withheld for taxes (9 filings), grants and awards (5 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ISRG insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.