George Stalk JR
CIK 1415944 · View on SEC EDGAR ↗
Insider
First SEC filing: April 24, 2017 · Latest: April 24, 2017
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 38 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
38 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 3, 2016 | ISRG | S | 2,125 | $618.70 | $1,314,738 | 814 Direct | -72.30% | Disposed | 443.5% (price as of 2026-08-21) |
| May 3, 2016 | ISRG | S | 1,063 | $618.70 | $657,678 | 814 Direct | -56.63% | Disposed | 443.5% (price as of 2026-08-21) |
| May 3, 2016 | ISRG | S | 744 | $618.70 | $460,313 | 814 Direct | -47.75% | Disposed | 443.5% (price as of 2026-08-21) |
| May 3, 2016 | ISRG | S | 2,500 | $618.70 | $1,546,750 | 814 Direct | -75.44% | Disposed | 443.5% (price as of 2026-08-21) |
| May 3, 2016 | ISRG | S | 1,212 | $618.70 | $749,864 | 814 Direct | -59.82% | Disposed | 443.5% (price as of 2026-08-21) |
| Aug. 18, 2015 | ISRG | S | 3,188 | $532.03 | $1,696,112 | 354 Direct | -90.01% | Disposed | 532.0% (price as of 2026-08-21) |
| Aug. 18, 2015 | ISRG | S | 1,538 | $532.03 | $818,262 | 354 Direct | -81.29% | Disposed | 532.0% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 200 | $331.49 | $66,298 | 3,134 Direct | -6.00% | Disposed | 914.3% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 981 | $331.60 | $325,300 | 6,403 Direct | -13.29% | Disposed | 914.0% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 928 | $331.70 | $307,818 | 5,475 Direct | -14.49% | Disposed | 913.7% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $331.80 | $33,180 | 5,375 Direct | -1.83% | Disposed | 913.4% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $331.88 | $33,188 | 5,275 Direct | -1.86% | Disposed | 913.2% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $331.97 | $33,197 | 5,175 Direct | -1.90% | Disposed | 912.9% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $331.98 | $33,198 | 5,075 Direct | -1.93% | Disposed | 912.8% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 1,232 | $332.00 | $409,024 | 3,843 Direct | -24.28% | Disposed | 912.8% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $332.02 | $33,202 | 3,743 Direct | -2.60% | Disposed | 912.7% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 815 | $332.05 | $270,621 | 2,928 Direct | -21.77% | Disposed | 912.6% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 15 | $332.09 | $4,981 | 2,913 Direct | -0.51% | Disposed | 912.5% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 15 | $332.10 | $4,982 | 2,898 Direct | -0.51% | Disposed | 912.5% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $332.16 | $33,216 | 2,798 Direct | -3.45% | Disposed | 912.3% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $332.19 | $33,219 | 2,698 Direct | -3.57% | Disposed | 912.2% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 15 | $332.22 | $4,983 | 2,683 Direct | -0.56% | Disposed | 912.1% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 22 | $332.23 | $7,309 | 2,661 Direct | -0.82% | Disposed | 912.1% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 200 | $332.29 | $66,458 | 2,461 Direct | -7.52% | Disposed | 911.9% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 200 | $332.30 | $66,460 | 2,261 Direct | -8.13% | Disposed | 911.9% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 15 | $332.33 | $4,985 | 2,246 Direct | -0.66% | Disposed | 911.8% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 50 | $332.36 | $16,618 | 2,196 Direct | -2.23% | Disposed | 911.7% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $332.37 | $33,237 | 2,096 Direct | -4.55% | Disposed | 911.7% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $332.38 | $33,238 | 1,996 Direct | -4.77% | Disposed | 911.6% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 510 | $332.39 | $169,519 | 1,486 Direct | -25.55% | Disposed | 911.6% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 200 | $332.40 | $66,480 | 1,286 Direct | -13.46% | Disposed | 911.6% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 3 | $332.43 | $997 | 1,283 Direct | -0.23% | Disposed | 911.5% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 3 | $332.44 | $997 | 1,280 Direct | -0.23% | Disposed | 911.4% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 3 | $332.45 | $997 | 1,277 Direct | -0.23% | Disposed | 911.4% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 2 | $332.46 | $665 | 1,275 Direct | -0.16% | Disposed | 911.4% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $332.47 | $33,247 | 1,175 Direct | -7.84% | Disposed | 911.4% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 386 | $332.52 | $128,353 | 789 Direct | -32.85% | Disposed | 911.2% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $332.53 | $33,253 | 689 Direct | -12.67% | Disposed | 911.2% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $332.54 | $33,254 | 589 Direct | -14.51% | Disposed | 911.1% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 100 | $332.55 | $33,255 | 489 Direct | -16.98% | Disposed | 911.1% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 2 | $332.58 | $665 | 487 Direct | -0.41% | Disposed | 911.0% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 28 | $332.61 | $9,313 | 459 Direct | -5.75% | Disposed | 910.9% (price as of 2026-08-21) |
| March 9, 2011 | ISRG | S | 459 | $332.90 | $152,801 | 0 Direct | -100.00% | Disposed | 910.0% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 44 | $346.17 | $15,231 | 11,622 Direct | -0.38% | Disposed | 871.3% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 661 | $346.20 | $228,838 | 15,961 Direct | -3.98% | Disposed | 871.2% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 16 | $346.18 | $5,539 | 15,945 Direct | -0.10% | Disposed | 871.3% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 88 | $346.50 | $30,492 | 15,857 Direct | -0.55% | Disposed | 870.4% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 40 | $346.13 | $13,845 | 15,817 Direct | -0.25% | Disposed | 871.4% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 3,686 | $346.22 | $1,276,167 | 12,131 Direct | -23.30% | Disposed | 871.2% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 135 | $346.30 | $46,750 | 11,996 Direct | -1.11% | Disposed | 871.0% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 544 | $346.26 | $188,365 | 11,452 Direct | -4.53% | Disposed | 871.1% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 77 | $346.53 | $26,683 | 11,375 Direct | -0.67% | Disposed | 870.3% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 3,256 | $346.28 | $1,127,488 | 8,119 Direct | -28.62% | Disposed | 871.0% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 200 | $346.70 | $69,340 | 7,919 Direct | -2.46% | Disposed | 869.8% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 300 | $346.15 | $103,845 | 7,619 Direct | -3.79% | Disposed | 871.4% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 100 | $346.71 | $34,671 | 7,519 Direct | -1.31% | Disposed | 869.8% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 200 | $346.23 | $69,246 | 7,319 Direct | -2.66% | Disposed | 871.2% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 100 | $346.68 | $34,668 | 7,219 Direct | -1.37% | Disposed | 869.9% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 827 | $346.21 | $286,316 | 6,392 Direct | -11.46% | Disposed | 871.2% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 100 | $346.12 | $34,612 | 6,292 Direct | -1.56% | Disposed | 871.5% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 200 | $346.29 | $69,258 | 6,092 Direct | -3.18% | Disposed | 871.0% (price as of 2026-08-21) |
| Feb. 26, 2010 | ISRG | S | 300 | $346.11 | $103,833 | 5,792 Direct | -4.92% | Disposed | 871.5% (price as of 2026-08-21) |
Showing latest 100 of 112 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| April 20, 2017 | ISRG | Restricted Stock Units | Common Stock (327) | $0.00 | April 21, 2020 | 327 | Disposed |
| May 3, 2016 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (2,500) | $579.24 | April 19, 2022 | 2,500 | Disposed |
| May 3, 2016 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (744) | $512.77 | April 23, 2025 | 744 | Disposed |
| May 3, 2016 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (2,125) | $483.80 | April 25, 2023 | 2,125 | Disposed |
| May 3, 2016 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (1,063) | $371.32 | April 24, 2024 | 1,063 | Disposed |
| May 3, 2016 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (1,212) | $357.19 | April 21, 2021 | 1,212 | Disposed |
| April 21, 2016 | ISRG | Restricted Stock Units | Common Stock (327) | $0.00 | April 21, 2020 | 327 | Acquired |
| April 21, 2016 | ISRG | Restricted Stock Units | Common Stock (460) | $0.00 | April 23, 2019 | 460 | Disposed |
| April 21, 2016 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (327) | $641.91 | April 21, 2026 | 327 | Acquired |
| April 21, 2016 | ISRG | Restricted Stock Units | Common Stock (327) | $0.00 | April 21, 2020 | 327 | Acquired |
| April 21, 2016 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (327) | $641.91 | April 21, 2026 | 327 | Acquired |
| Aug. 18, 2015 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (3,188) | $365.98 | April 22, 2020 | 3,188 | Disposed |
| Aug. 18, 2015 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (1,538) | $357.19 | April 21, 2021 | 1,538 | Disposed |
| April 24, 2015 | ISRG | Restricted Stock Units | Common Stock (354) | $0.00 | April 25, 2018 | 354 | Disposed |
| April 23, 2015 | ISRG | Restricted Stock Units | Common Stock (460) | $0.00 | April 23, 2019 | 460 | Acquired |
| April 23, 2015 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (744) | $512.77 | April 23, 2025 | 744 | Acquired |
| April 24, 2014 | ISRG | Restricted Stock Units | Common Stock (354) | $0.00 | April 25, 2018 | 354 | Acquired |
| April 24, 2014 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (1,063) | $371.32 | April 24, 2024 | 1,063 | Acquired |
| April 25, 2013 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (2,125) | $483.80 | April 25, 2023 | 2,125 | Acquired |
| April 19, 2012 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (2,500) | $579.24 | April 19, 2022 | 2,500 | Acquired |
| April 21, 2011 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (2,750) | $357.19 | April 21, 2021 | 2,750 | Acquired |
| March 9, 2011 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (4,250) | $135.39 | April 23, 2019 | 4,250 | Disposed |
| March 9, 2011 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (3,334) | $269.34 | Oct. 19, 2017 | 3,334 | Disposed |
| April 22, 2010 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (3,188) | $365.98 | April 22, 2020 | 3,188 | Acquired |
| Feb. 26, 2010 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (11,666) | $269.34 | Oct. 19, 2017 | 11,666 | Disposed |
| Feb. 26, 2010 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $288.50 | April 21, 2018 | 5,000 | Disposed |
| April 23, 2009 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (4,250) | $135.39 | April 23, 2019 | 4,250 | Acquired |
| April 21, 2008 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $288.50 | April 21, 2018 | 5,000 | Acquired |
| Oct. 19, 2007 | ISRG | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $269.34 | Oct. 19, 2017 | 15,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).