David E Sharbutt
Insider
First SEC filing: March 14, 2023 · Latest: March 14, 2023
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 23, 2026 | BMNP | A | 7,082 | · | · | 17,082 Direct | +70.82% | Acquired | (price as of 2026-10-02) |
| Jan. 23, 2026 | BMNP | A | 26,000 | · | · | 43,082 Direct | +152.21% | Acquired | (price as of 2026-10-02) |
| Jan. 23, 2026 | BMNP | A | 57,000 | · | · | 57,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 9, 2025 | BMNP | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 10, 2023 | AMT | A | 1,072 | · | · | 2,858 Direct | +60.02% | Acquired | (price as of 2026-10-02) |
| March 10, 2022 | AMT | A | 881 | · | · | 1,786 Direct | +97.35% | Acquired | (price as of 2026-10-02) |
| Sept. 3, 2021 | AMT | S | 739 | $300.71 | $222,225 | 905 Direct | -44.95% | Disposed | -46.1% (price as of 2026-10-02) |
| Aug. 23, 2021 | AMT | M | 2,400 | · | · | 454 Direct | -84.09% | Disposed | (price as of 2026-10-02) |
| Aug. 23, 2021 | AMT | S | 2,400 | $290.00 | $696,000 | 1,644 Direct | -59.35% | Disposed | -44.1% (price as of 2026-10-02) |
| Aug. 23, 2021 | AMT | M | 2,400 | $81.18 | $194,832 | 4,044 Direct | +145.99% | Acquired | 99.8% (price as of 2026-10-02) |
| March 10, 2021 | AMT | A | 881 | · | · | 1,644 Direct | +115.47% | Acquired | (price as of 2026-10-02) |
| Sept. 14, 2020 | AMT | S | 973 | $255.27 | $248,378 | 763 Direct | -56.05% | Disposed | -36.5% (price as of 2026-10-02) |
| June 15, 2020 | AMT | S | 900 | $258.92 | $233,028 | 1,736 Direct | -34.14% | Disposed | -37.4% (price as of 2026-10-02) |
| March 10, 2020 | AMT | A | 739 | · | · | 2,636 Direct | +38.96% | Acquired | (price as of 2026-10-02) |
| Feb. 27, 2020 | AMT | M | 2,200 | $81.18 | $178,596 | 4,097 Direct | +115.97% | Acquired | 99.8% (price as of 2026-10-02) |
| Feb. 27, 2020 | AMT | S | 2,200 | $243.60 | $535,920 | 1,897 Direct | -53.70% | Disposed | -33.4% (price as of 2026-10-02) |
| Feb. 27, 2020 | AMT | M | 2,200 | · | · | 2,854 Direct | -43.53% | Disposed | (price as of 2026-10-02) |
| Aug. 8, 2019 | AMT | M | 2,039 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 8, 2019 | AMT | S | 2,039 | $217.59 | $443,666 | 1,897 Direct | -51.80% | Disposed | -25.5% (price as of 2026-10-02) |
| Aug. 8, 2019 | AMT | M | 2,039 | $76.90 | $156,799 | 3,936 Direct | +107.49% | Acquired | 110.9% (price as of 2026-10-02) |
| May 16, 2019 | AMT | M | 1,200 | $76.90 | $92,280 | 3,097 Direct | +63.26% | Acquired | 110.9% (price as of 2026-10-02) |
| May 16, 2019 | AMT | S | 1,200 | $202.46 | $242,952 | 1,897 Direct | -38.75% | Disposed | -19.9% (price as of 2026-10-02) |
| May 16, 2019 | AMT | M | 1,200 | · | · | 2,039 Direct | -37.05% | Disposed | (price as of 2026-10-02) |
| May 8, 2019 | AMT | S | 2,035 | $192.15 | $391,025 | 1,897 Direct | -51.75% | Disposed | -15.6% (price as of 2026-10-02) |
| March 11, 2019 | AMT | A | 973 | · | · | 3,932 Direct | +32.88% | Acquired | (price as of 2026-10-02) |
| March 1, 2019 | AMT | S | 1,009 | $174.49 | $176,060 | 2,959 Direct | -25.43% | Disposed | -7.0% (price as of 2026-10-02) |
| Nov. 14, 2018 | AMT | S | 813 | $160.88 | $130,795 | 3,968 Direct | -17.00% | Disposed | 0.8% (price as of 2026-10-02) |
| Nov. 7, 2018 | AMT | M | 3,590 | $62.00 | $222,580 | 8,371 Direct | +75.09% | Acquired | 161.6% (price as of 2026-10-02) |
| Nov. 7, 2018 | AMT | S | 3,590 | $157.06 | $563,845 | 4,781 Direct | -42.89% | Disposed | 3.3% (price as of 2026-10-02) |
| Nov. 7, 2018 | AMT | M | 3,590 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 3, 2018 | AMT | S | 1,321 | $150.48 | $198,784 | 4,781 Direct | -21.65% | Disposed | 7.8% (price as of 2026-10-02) |
| March 12, 2018 | AMT | A | 1,241 | · | · | 6,102 Direct | +25.53% | Acquired | (price as of 2026-10-02) |
| Dec. 13, 2017 | AMT | S | 1,584 | $144.44 | $228,793 | 4,861 Direct | -24.58% | Disposed | 12.3% (price as of 2026-10-02) |
| May 18, 2017 | AMT | M | 3,653 | $50.78 | $185,499 | 10,098 Direct | +56.68% | Acquired | 219.4% (price as of 2026-10-02) |
| May 18, 2017 | AMT | S | 3,653 | $128.61 | $469,812 | 6,445 Direct | -36.18% | Disposed | 26.1% (price as of 2026-10-02) |
| May 18, 2017 | AMT | M | 3,653 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 5, 2017 | AMT | M | 4,167 | $43.11 | $179,639 | 10,612 Direct | +64.65% | Acquired | 276.2% (price as of 2026-10-02) |
| May 5, 2017 | AMT | S | 4,167 | $127.77 | $532,418 | 6,445 Direct | -39.27% | Disposed | 26.9% (price as of 2026-10-02) |
| May 5, 2017 | AMT | M | 4,167 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 10, 2017 | AMT | A | 1,321 | · | · | 6,445 Direct | +25.78% | Acquired | (price as of 2026-10-02) |
| June 7, 2016 | AMT | M | 5,000 | $37.70 | $188,500 | 10,124 Direct | +97.58% | Acquired | 330.2% (price as of 2026-10-02) |
| June 7, 2016 | AMT | S | 5,000 | $108.14 | $540,700 | 5,124 Direct | -49.39% | Disposed | 50.0% (price as of 2026-10-02) |
| June 7, 2016 | AMT | M | 5,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 23, 2016 | AMT | M | 10,000 | $37.52 | $375,200 | 15,124 Direct | +195.16% | Acquired | 332.3% (price as of 2026-10-02) |
| May 23, 2016 | AMT | S | 10,000 | $104.35 | $1,043,500 | 5,124 Direct | -66.12% | Disposed | 55.4% (price as of 2026-10-02) |
| May 23, 2016 | AMT | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2016 | AMT | M | 12,500 | $35.72 | $446,500 | 17,624 Direct | +243.95% | Acquired | 354.1% (price as of 2026-10-02) |
| March 11, 2016 | AMT | S | 12,500 | $95.78 | $1,197,250 | 5,124 Direct | -70.93% | Disposed | 69.3% (price as of 2026-10-02) |
| March 11, 2016 | AMT | M | 12,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 10, 2016 | AMT | A | 1,584 | · | · | 5,124 Direct | +44.75% | Acquired | (price as of 2026-10-02) |
| March 10, 2015 | AMT | A | 794 | · | · | 3,540 Direct | +28.91% | Acquired | (price as of 2026-10-02) |
| March 10, 2015 | AMT | A | 4,971 | · | · | 4,971 Direct | · | Acquired | (price as of 2026-10-02) |
| March 10, 2014 | AMT | A | 924 | · | · | 2,746 Direct | +50.71% | Acquired | (price as of 2026-10-02) |
| March 10, 2014 | AMT | A | 5,054 | · | · | 5,054 Direct | · | Acquired | (price as of 2026-10-02) |
| March 11, 2013 | AMT | A | 813 | · | · | 1,822 Direct | +80.57% | Acquired | (price as of 2026-10-02) |
| March 11, 2013 | AMT | A | 3,239 | · | · | 3,239 Direct | · | Acquired | (price as of 2026-10-02) |
| March 12, 2012 | AMT | M | 12,500 | $35.72 | $446,500 | 18,813 Direct | +198.00% | Acquired | 354.1% (price as of 2026-10-02) |
| March 12, 2012 | AMT | M | 7,152 | $28.39 | $203,045 | 25,965 Direct | +38.02% | Acquired | 471.3% (price as of 2026-10-02) |
| March 12, 2012 | AMT | S | 19,652 | $62.05 | $1,219,407 | 6,313 Direct | -75.69% | Disposed | 161.4% (price as of 2026-10-02) |
| March 12, 2012 | AMT | S | 6,313 | $62.12 | $392,164 | 0 Direct | -100.00% | Disposed | 161.1% (price as of 2026-10-02) |
| March 12, 2012 | AMT | A | 1,009 | · | · | 1,099 Direct | +1121.11% | Acquired | (price as of 2026-10-02) |
| March 12, 2012 | AMT | M | 12,500 | · | · | 12,500 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| March 12, 2012 | AMT | M | 7,152 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 12, 2012 | AMT | A | 3,590 | · | · | 3,590 Direct | · | Acquired | (price as of 2026-10-02) |
| March 10, 2011 | AMT | A | 1,231 | · | · | 6,313 Direct | +24.22% | Acquired | (price as of 2026-10-02) |
| March 10, 2011 | AMT | A | 3,653 | · | · | 3,653 Direct | · | Acquired | (price as of 2026-10-02) |
| March 10, 2010 | AMT | A | 1,450 | · | · | 5,082 Direct | +39.92% | Acquired | (price as of 2026-10-02) |
| March 10, 2010 | AMT | A | 4,167 | · | · | 4,167 Direct | · | Acquired | (price as of 2026-10-02) |
| March 10, 2009 | AMT | A | 2,202 | · | · | 3,632 Direct | +153.99% | Acquired | (price as of 2026-10-02) |
| March 10, 2009 | AMT | A | 7,152 | · | · | 7,152 Direct | · | Acquired | (price as of 2026-10-02) |
| March 17, 2008 | AMT | A | 1,430 | · | · | 1,430 Direct | · | Acquired | (price as of 2026-10-02) |
| March 17, 2008 | AMT | A | 5,000 | · | · | 5,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 15, 2007 | AMT | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 1, 2006 | AMT | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| Jan. 23, 2026 | BMNP | Stock Options | Common Stock | $29.80 | Jan. 23, 2036 | 57,000 | Acquired |
| Aug. 23, 2021 | AMT | Option to Purchase Common Stock [F1] | Common Stock | $81.18 | March 10, 2024 | 2,400 | Disposed |
| Feb. 27, 2020 | AMT | Option to Purchase Common Stock [F2] | Common Stock | $81.18 | March 10, 2024 | 2,200 | Disposed |
| Aug. 8, 2019 | AMT | Option to Purchase Common Stock [F1] | Common Stock | $76.90 | March 11, 2023 | 2,039 | Disposed |
| May 16, 2019 | AMT | Option to Purchase Common Stock [F1] | Common Stock | $76.90 | March 11, 2023 | 1,200 | Disposed |
| Nov. 7, 2018 | AMT | Option to Purchase Common Stock [F1] | Common Stock | $62.00 | March 12, 2022 | 3,590 | Disposed |
| May 18, 2017 | AMT | Option to Purchase Common Stock [F2] | Common Stock | $50.78 | March 10, 2021 | 3,653 | Disposed |
| May 5, 2017 | AMT | Option to Purchase Common Stock [F2] | Common Stock | $43.11 | March 10, 2020 | 4,167 | Disposed |
| June 7, 2016 | AMT | Option to purchase common stock | Common Stock | $37.70 | March 17, 2018 | 5,000 | Disposed |
| May 23, 2016 | AMT | Option to Purchase Common Stock | Common Stock | $37.52 | March 15, 2017 | 10,000 | Disposed |
| March 11, 2016 | AMT | Option to Purchase Common Stock | Common Stock | $35.72 | Sept. 1, 2016 | 12,500 | Disposed |
| March 10, 2015 | AMT | Option to Purchase Common Stock [F2] | Common Stock | $94.57 | March 10, 2025 | 4,971 | Acquired |
| March 10, 2014 | AMT | Option to Purchase Common Stock [F2] | Common Stock | $81.18 | March 10, 2024 | 5,054 | Acquired |
| March 11, 2013 | AMT | Option to Purchase Common Stock [F2] | Common Stock | $76.90 | March 11, 2023 | 3,239 | Acquired |
| March 12, 2012 | AMT | Option to Purchase Common Stock | Common Stock | $35.72 | Sept. 1, 2016 | 12,500 | Disposed |
| March 12, 2012 | AMT | Option to Purchase Common Stock | Common Stock | $28.39 | March 10, 2019 | 7,152 | Disposed |
| March 12, 2012 | AMT | Option to Purchase Common Stock [F4] | Common Stock | $62.00 | March 12, 2022 | 3,590 | Acquired |
| March 10, 2011 | AMT | Option to Purchase Class A Common Stock [F2] | Class A Common Stock | $50.78 | March 10, 2021 | 3,653 | Acquired |
| March 10, 2010 | AMT | Option to Purchase Class A Common Stock [F2] | Class A Common Stock | $43.11 | March 10, 2020 | 4,167 | Acquired |
| March 10, 2009 | AMT | Option to Purchase Class A Common Stock [F2] | Class A Common Stock | $28.39 | March 10, 2019 | 7,152 | Acquired |
| March 17, 2008 | AMT | Option to purchase Class A Common Stock [F2] | Class A Common Stock | $37.70 | March 17, 2018 | 5,000 | Acquired |
| March 15, 2007 | AMT | Option to Purchase Class A Common Stock [F1] | Class A Common Stock | $37.52 | March 15, 2017 | 10,000 | Acquired |
| Sept. 1, 2006 | AMT | Option to purchase Class A Common Stock [F1] | Class A Common Stock | $35.72 | Sept. 1, 2016 | 25,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).