William Charles Taylor
Insider
First SEC filing: Sept. 24, 2009 · Latest: Jan. 25, 2017
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 |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 27, 2018 | MDXG | M | 20,000 | $1.65 | $33,000 | 557,057 Direct | +3.72% | Acquired | 175.8% (price as of 2026-10-05) |
| Feb. 27, 2018 | MDXG | M | 20,000 | $1.65 | $33,000 | 269,394 Direct | -6.91% | Disposed | 175.8% (price as of 2026-10-05) |
| Feb. 25, 2018 | MDXG | F | 7,287 | $7.83 | $57,057 | 537,057 Direct | -1.34% | Disposed | -41.9% (price as of 2026-10-05) |
| Feb. 22, 2018 | MDXG | F | 8,805 | $8.88 | $78,188 | 468,619 Direct | -1.84% | Disposed | -48.8% (price as of 2026-10-05) |
| Feb. 22, 2018 | MDXG | F | 15,175 | $8.88 | $134,754 | 453,444 Direct | -3.24% | Disposed | -48.8% (price as of 2026-10-05) |
| Feb. 22, 2018 | MDXG | A | 90,900 | $8.88 | $807,192 | 544,344 Direct | +20.05% | Acquired | -48.8% (price as of 2026-10-05) |
| Oct. 26, 2017 | MDXG | A | 10,000 | · | · | 477,424 Direct | +2.14% | Acquired | (price as of 2026-10-05) |
| June 14, 2017 | MDXG | M | 13,812 | $7.24 | $99,999 | 547,424 Direct | +2.59% | Acquired | -37.2% (price as of 2026-10-05) |
| June 14, 2017 | MDXG | S 10b5-1 | 80,000 | $14.52 | $1,161,600 | 467,424 Direct | -14.61% | Disposed | -68.7% (price as of 2026-10-05) |
| June 14, 2017 | MDXG | M | 13,812 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 25, 2017 | MDXG | S 10b5-1 | 26,571 | $13.74 | $365,086 | 533,612 Direct | -4.74% | Disposed | -66.9% (price as of 2026-10-05) |
| May 10, 2017 | MDXG | M | 19,723 | $5.07 | $99,996 | 560,183 Direct | +3.65% | Acquired | -10.3% (price as of 2026-10-05) |
| May 10, 2017 | MDXG | M | 19,723 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| April 27, 2017 | MDXG | S 10b5-1 | 26,000 | $11.40 | $296,400 | 540,460 Direct | -4.59% | Disposed | -60.1% (price as of 2026-10-05) |
| March 6, 2017 | MDXG | S 10b5-1 | 26,000 | $8.18 | $212,680 | 566,460 Direct | -4.39% | Disposed | -44.4% (price as of 2026-10-05) |
| Feb. 25, 2017 | MDXG | F | 11,929 | · | · | 592,460 Direct | -1.97% | Disposed | (price as of 2026-10-05) |
| Feb. 22, 2017 | MDXG | A | 150,000 | · | · | 614,370 Direct | +32.30% | Acquired | (price as of 2026-10-05) |
| Feb. 22, 2017 | MDXG | F | 9,981 | · | · | 604,389 Direct | -1.62% | Disposed | (price as of 2026-10-05) |
| Sept. 6, 2016 | MDXG | S 10b5-1 | 20,400 | $7.55 | $154,020 | 566,566 Direct | -3.48% | Disposed | -39.7% (price as of 2026-10-05) |
| Aug. 1, 2016 | MDXG | S 10b5-1 | 25,000 | $7.55 | $188,750 | 586,966 Direct | -4.09% | Disposed | -39.7% (price as of 2026-10-05) |
| July 29, 2016 | MDXG | S 10b5-1 | 350 | $7.50 | $2,625 | 611,966 Direct | -0.06% | Disposed | -39.3% (price as of 2026-10-05) |
| July 28, 2016 | MDXG | S 10b5-1 | 3,762 | $7.53 | $28,328 | 612,316 Direct | -0.61% | Disposed | -39.6% (price as of 2026-10-05) |
| June 16, 2016 | MDXG | S 10b5-1 | 24,333 | $7.52 | $182,984 | 616,078 Direct | -3.80% | Disposed | -39.5% (price as of 2026-10-05) |
| March 6, 2016 | MDXG | F | 6,114 | · | · | 640,411 Direct | -0.95% | Disposed | (price as of 2026-10-05) |
| Feb. 25, 2016 | MDXG | F | 4,058 | · | · | 654,533 Direct | -0.62% | Disposed | (price as of 2026-10-05) |
| Feb. 25, 2016 | MDXG | F | 8,008 | · | · | 646,525 Direct | -1.22% | Disposed | (price as of 2026-10-05) |
| Feb. 22, 2016 | MDXG | A | 85,000 | · | · | 658,591 Direct | +14.82% | Acquired | (price as of 2026-10-05) |
| Oct. 30, 2015 | MDXG | M | 40,606 | $1.65 | $67,000 | 573,591 Direct | +7.62% | Acquired | 175.8% (price as of 2026-10-05) |
| Oct. 30, 2015 | MDXG | M | 40,606 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 19, 2015 | MDXG | M | 80,000 | $1.25 | $100,000 | 512,985 Direct | +18.48% | Acquired | 264.0% (price as of 2026-10-05) |
| May 19, 2015 | MDXG | M | 20,000 | $1.65 | $33,000 | 532,985 Direct | +3.90% | Acquired | 175.8% (price as of 2026-10-05) |
| May 19, 2015 | MDXG | M | 80,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 19, 2015 | MDXG | M | 20,000 | · | · | 40,606 Direct | -33.00% | Disposed | (price as of 2026-10-05) |
| May 18, 2015 | MDXG | S 10b5-1 | 120,526 | $10.01 | $1,206,465 | 432,985 Direct | -21.77% | Disposed | -54.5% (price as of 2026-10-05) |
| May 15, 2015 | MDXG | S 10b5-1 | 29,474 | $10.00 | $294,740 | 553,511 Direct | -5.06% | Disposed | -54.5% (price as of 2026-10-05) |
| March 9, 2015 | MDXG | S 10b5-1 | 5,989 | $10.02 | $60,010 | 582,985 Direct | -1.02% | Disposed | -54.6% (price as of 2026-10-05) |
| Feb. 25, 2015 | MDXG | A | 72,036 | · | · | 588,974 Direct | +13.94% | Acquired | (price as of 2026-10-05) |
| Jan. 5, 2015 | MDXG | M | 32,342 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Jan. 5, 2015 | MDXG | M | 25,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Jan. 5, 2015 | MDXG | M | 32,432 | $1.23 | $39,891 | 516,938 Direct | +6.69% | Acquired | 269.9% (price as of 2026-10-05) |
| Jan. 5, 2015 | MDXG | M | 25,000 | $1.35 | $33,750 | 484,506 Direct | +5.44% | Acquired | 237.0% (price as of 2026-10-05) |
| Oct. 31, 2014 | MDXG | M | 62,136 | · | · | 52,864 Direct | -54.03% | Disposed | (price as of 2026-10-05) |
| Oct. 31, 2014 | MDXG | M | 87,864 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Oct. 31, 2014 | MDXG | S 10b5-1 | 62,136 | $10.01 | $621,981 | 459,506 Direct | -11.91% | Disposed | -54.5% (price as of 2026-10-05) |
| Oct. 31, 2014 | MDXG | S 10b5-1 | 87,864 | $10.01 | $879,519 | 521,642 Direct | -14.42% | Disposed | -54.5% (price as of 2026-10-05) |
| Oct. 31, 2014 | MDXG | M | 62,136 | $1.10 | $68,350 | 609,506 Direct | +11.35% | Acquired | 313.6% (price as of 2026-10-05) |
| Oct. 31, 2014 | MDXG | M | 87,864 | $0.70 | $61,505 | 547,370 Direct | +19.12% | Acquired | 550.0% (price as of 2026-10-05) |
| July 2, 2014 | MDXG | M | 21,429 | · | · | 203,571 Direct | -9.52% | Disposed | (price as of 2026-10-05) |
| July 2, 2014 | MDXG | M | 21,429 | $1.23 | $26,358 | 459,506 Direct | +4.89% | Acquired | 269.9% (price as of 2026-10-05) |
| July 1, 2014 | MDXG | M | 78,571 | · | · | 87,864 Direct | -47.21% | Disposed | (price as of 2026-10-05) |
| July 1, 2014 | MDXG | M | 50,000 | · | · | 166,435 Direct | -23.10% | Disposed | (price as of 2026-10-05) |
| July 1, 2014 | MDXG | M | 78,571 | $0.70 | $55,000 | 438,077 Direct | +21.86% | Acquired | 550.0% (price as of 2026-10-05) |
| July 1, 2014 | MDXG | S 10b5-1 | 50,000 | $7.50 | $375,000 | 359,506 Direct | -12.21% | Disposed | -39.3% (price as of 2026-10-05) |
| July 1, 2014 | MDXG | M | 50,000 | $0.70 | $35,000 | 409,506 Direct | +13.91% | Acquired | 550.0% (price as of 2026-10-05) |
| July 1, 2014 | MDXG | S 10b5-1 | 98,000 | $7.50 | $735,000 | 359,506 Direct | -21.42% | Disposed | -39.3% (price as of 2026-10-05) |
| June 30, 2014 | MDXG | S 10b5-1 | 2,000 | $7.50 | $15,000 | 457,506 Direct | -0.44% | Disposed | -39.3% (price as of 2026-10-05) |
| Feb. 25, 2014 | MDXG | A | 113,359 | · | · | 2,109,794 Direct | +5.68% | Acquired | (price as of 2026-10-05) |
| Feb. 25, 2014 | MDXG | A | 36,506 | $7.24 | $264,303 | 459,506 Direct | +8.63% | Acquired | -37.2% (price as of 2026-10-05) |
| Oct. 29, 2013 | MDXG | A | 50,000 | · | · | 1,996,435 Direct | +2.57% | Acquired | (price as of 2026-10-05) |
| Oct. 29, 2013 | MDXG | A | 18,000 | $5.49 | $98,820 | 423,000 Direct | +4.44% | Acquired | -17.1% (price as of 2026-10-05) |
| Sept. 11, 2013 | MDXG | M | 50,000 | · | · | 1,946,435 Direct | -2.50% | Disposed | (price as of 2026-10-05) |
| Sept. 11, 2013 | MDXG | M | 50,000 | $0.70 | $35,000 | 405,000 Direct | +14.08% | Acquired | 550.0% (price as of 2026-10-05) |
| Aug. 28, 2013 | MDXG | M | 9,800 | · | · | 1,996,435 Direct | -0.49% | Disposed | (price as of 2026-10-05) |
| Aug. 28, 2013 | MDXG | S | 9,800 | $6.15 | $60,270 | 355,000 Direct | -2.69% | Disposed | -26.0% (price as of 2026-10-05) |
| Aug. 28, 2013 | MDXG | M | 9,800 | $0.70 | $6,860 | 364,800 Direct | +2.76% | Acquired | 550.0% (price as of 2026-10-05) |
| Aug. 8, 2013 | MDXG | M | 200,000 | · | · | 2,006,235 Direct | -9.07% | Disposed | (price as of 2026-10-05) |
| Aug. 8, 2013 | MDXG | M | 200,000 | $0.70 | $140,000 | 355,000 Direct | +129.03% | Acquired | 550.0% (price as of 2026-10-05) |
| Aug. 7, 2013 | MDXG | M | 83,765 | · | · | 2,206,235 Direct | -3.66% | Disposed | (price as of 2026-10-05) |
| Aug. 7, 2013 | MDXG | S | 83,765 | $6.06 | $507,616 | 155,000 Direct | -35.08% | Disposed | -24.9% (price as of 2026-10-05) |
| Aug. 7, 2013 | MDXG | M | 83,765 | $0.70 | $58,636 | 238,765 Direct | +54.04% | Acquired | 550.0% (price as of 2026-10-05) |
| Aug. 6, 2013 | MDXG | M | 90,000 | · | · | 2,290,000 Direct | -3.78% | Disposed | (price as of 2026-10-05) |
| Aug. 6, 2013 | MDXG | M | 10,000 | · | · | 2,380,000 Direct | -0.42% | Disposed | (price as of 2026-10-05) |
| Aug. 6, 2013 | MDXG | S | 90,000 | $6.34 | $570,600 | 155,000 Direct | -36.73% | Disposed | -28.2% (price as of 2026-10-05) |
| Aug. 6, 2013 | MDXG | M | 90,000 | $0.70 | $63,000 | 245,000 Direct | +58.06% | Acquired | 550.0% (price as of 2026-10-05) |
| Aug. 6, 2013 | MDXG | S | 10,000 | $6.34 | $63,400 | 155,000 Direct | -6.06% | Disposed | -28.2% (price as of 2026-10-05) |
| Aug. 6, 2013 | MDXG | M | 10,000 | $0.50 | $5,000 | 165,000 Direct | +6.45% | Acquired | 810.0% (price as of 2026-10-05) |
| March 6, 2013 | MDXG | A | 55,000 | $5.07 | $278,850 | 155,000 Direct | +55.00% | Acquired | -10.3% (price as of 2026-10-05) |
| March 6, 2013 | MDXG | A | 165,000 | $5.07 | $836,550 | 2,390,000 Direct | +7.42% | Acquired | -10.3% (price as of 2026-10-05) |
| Oct. 31, 2012 | MDXG | A | 75,000 | $2.94 | $220,500 | 2,225,000 Direct | +3.49% | Acquired | 54.8% (price as of 2026-10-05) |
| Aug. 7, 2012 | MDXG | X | 100,000 | $0.70 | $70,000 | 2,150,000 Direct | -4.44% | Disposed | 550.0% (price as of 2026-10-05) |
| Aug. 7, 2012 | MDXG | X | 100,000 | $0.70 | $70,000 | 100,000 Direct | · | Acquired | 550.0% (price as of 2026-10-05) |
| Aug. 7, 2012 | MDXG | S | 62,550 | $2.23 | $139,486 | 0 Direct | -100.00% | Disposed | 104.0% (price as of 2026-10-05) |
| Feb. 23, 2012 | MDXG | A | 600,000 | $1.25 | $750,000 | 2,250,000 Direct | +36.36% | Acquired | 264.0% (price as of 2026-10-05) |
| Dec. 14, 2011 | MDXG | A | 115,000 | $1.10 | $126,500 | 1,650,000 Direct | +7.49% | Acquired | 313.6% (price as of 2026-10-05) |
| Aug. 3, 2011 | MDXG | A | 125,000 | $1.18 | $147,500 | 1,535,000 Direct | +8.87% | Acquired | 285.6% (price as of 2026-10-05) |
| March 18, 2011 | MDXG | A | 225,000 | $1.23 | $276,750 | 1,410,000 Direct | +18.99% | Acquired | 269.9% (price as of 2026-10-05) |
| Jan. 5, 2011 | MDXG | A | 75,000 | · | · | 1,185,000 Direct | +6.76% | Acquired | (price as of 2026-10-05) |
| Feb. 23, 2010 | MDXG | A | 350,000 | · | · | 350,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 28, 2009 | MDXG | P | 20,850 | · | · | 20,850 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 28, 2009 | MDXG | P | 41,700 | $0.60 | $25,020 | 41,700 Direct | · | Acquired | 658.3% (price as of 2026-10-05) |
| Sept. 22, 2009 | MDXG | A | 750,000 | · | · | 760,000 Direct | +7500.00% | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| Feb. 27, 2018 | MDXG | Stock Option | Common Stock | $1.65 | Feb. 23, 2020 | 20,000 | Disposed |
| June 14, 2017 | MDXG | Stock Option | Common Stock | $7.24 | Feb. 24, 2024 | 13,812 | Disposed |
| May 10, 2017 | MDXG | Stock Options | Common Stock | $5.07 | March 6, 2023 | 19,723 | Disposed |
| Oct. 30, 2015 | MDXG | Stock Option | Common Stock | $1.65 | Feb. 23, 2020 | 40,606 | Disposed |
| May 19, 2015 | MDXG | Stock Option | Common Stock | $1.25 | Feb. 23, 2022 | 80,000 | Disposed |
| May 19, 2015 | MDXG | Stock Option | Common Stock | $1.65 | Feb. 23, 2020 | 20,000 | Disposed |
| Jan. 5, 2015 | MDXG | Stock Option | Common Stock | $1.23 | March 18, 2021 | 32,342 | Disposed |
| Jan. 5, 2015 | MDXG | Stock Option | Common Stock | $1.35 | Jan. 5, 2021 | 25,000 | Disposed |
| Oct. 31, 2014 | MDXG | Stock Option | Common Stock | $1.10 | Dec. 14, 2021 | 62,136 | Disposed |
| Oct. 31, 2014 | MDXG | Stock Option | Common Stock | $0.70 | Sept. 22, 2019 | 87,864 | Disposed |
| July 2, 2014 | MDXG | Stock Option | Common Stock | $1.23 | March 18, 2021 | 21,429 | Disposed |
| July 1, 2014 | MDXG | Stock Option | Common Stock | $0.70 | Sept. 22, 2019 | 78,571 | Disposed |
| July 1, 2014 | MDXG | Stock Option | Common Stock | $0.70 | Sept. 22, 2019 | 50,000 | Disposed |
| Feb. 25, 2014 | MDXG | Stock Option | Common Stock | $7.24 | Feb. 24, 2024 | 113,359 | Acquired |
| Oct. 29, 2013 | MDXG | Stock Option | Common Stock | $5.49 | Oct. 29, 2023 | 50,000 | Acquired |
| Sept. 11, 2013 | MDXG | Stock Option | Common Stock | $0.70 | Sept. 22, 2019 | 50,000 | Disposed |
| Aug. 28, 2013 | MDXG | Stock Option | Common Stock | $0.70 | Sept. 22, 2019 | 9,800 | Disposed |
| Aug. 8, 2013 | MDXG | Stock Option | Common Stock | $0.70 | Sept. 22, 2019 | 200,000 | Disposed |
| Aug. 7, 2013 | MDXG | Stock Option | Common Stock | $0.70 | Sept. 22, 2019 | 83,765 | Disposed |
| Aug. 6, 2013 | MDXG | Stock Option | Common Stock | $0.70 | Sept. 22, 2019 | 90,000 | Disposed |
| Aug. 6, 2013 | MDXG | Stock Option | Common Stock | $0.50 | July 31, 2019 | 10,000 | Disposed |
| March 6, 2013 | MDXG | Stock Option | Common Stock | $5.07 | March 6, 2023 | 165,000 | Acquired |
| Oct. 31, 2012 | MDXG | Stock Option | Common Stock | $2.94 | Oct. 30, 2022 | 75,000 | Acquired |
| Aug. 7, 2012 | MDXG | Stock Option | Common Stock | $0.70 | Sept. 21, 2019 | 100,000 | Disposed |
| Feb. 23, 2012 | MDXG | Stock Option | Common Stock | $1.25 | Feb. 23, 2022 | 600,000 | Acquired |
| Dec. 14, 2011 | MDXG | Stock Option | Common Stock | $1.10 | Dec. 14, 2021 | 115,000 | Acquired |
| Aug. 3, 2011 | MDXG | Stock Option | Common Stock | $1.18 | Aug. 3, 2021 | 125,000 | Acquired |
| March 18, 2011 | MDXG | Stock Option | Common Stock | $1.23 | March 18, 2021 | 225,000 | Acquired |
| Jan. 5, 2011 | MDXG | Stock Option | Common Stock | $1.35 | Jan. 4, 2021 | 75,000 | Acquired |
| Feb. 23, 2010 | MDXG | Stock Option | Common Stock | $1.65 | Feb. 23, 2020 | 350,000 | Acquired |
| Dec. 28, 2009 | MDXG | Common Stock Warrants (Right to Buy) | Common Stock | $1.50 | Dec. 28, 2014 | 20,850 | Acquired |
| Sept. 22, 2009 | MDXG | Stock Option | Common Stock | $0.70 | Sept. 22, 2019 | 750,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Sept. 24, 2009 | MDXG | Stock Option | 10,000 | Direct |