Donald E Schrock
Insider
First SEC filing: Nov. 19, 2014 · Latest: Nov. 19, 2014
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 |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 5, 2021 | MXL | S | 18,943 | $51.46 | $974,807 | 12,039 Direct | -61.14% | Disposed | 105.8% (price as of 2026-10-02) |
| Aug. 5, 2021 | MXL | S | 1,057 | $52.04 | $55,006 | 10,982 Direct | -8.78% | Disposed | 103.6% (price as of 2026-10-02) |
| June 2, 2021 | MXL | S | 10,857 | $38.34 | $416,257 | 30,982 Direct | -25.95% | Disposed | 176.3% (price as of 2026-10-02) |
| May 12, 2021 | MXL | A | 5,944 | · | · | 5,944 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 17, 2020 | MXL | S | 10,721 | $27.26 | $292,254 | 41,839 Direct | -20.40% | Disposed | 288.6% (price as of 2026-10-02) |
| Sept. 10, 2020 | MXL | A | 1,165 | · | · | 1,165 Direct | · | Acquired | (price as of 2026-10-02) |
| June 8, 2020 | MXL | A | 7,890 | · | · | 7,890 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2020 | MXL | M | 10,857 | $14.00 | $151,998 | 52,560 Direct | +26.03% | Acquired | 656.6% (price as of 2026-10-02) |
| Feb. 13, 2020 | MXL | M | 10,857 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 9, 2019 | MXL | A | 6,545 | · | · | 6,545 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 28, 2019 | MXL | M | 34,575 | $7.45 | $257,584 | 76,278 Direct | +82.91% | Acquired | 1321.9% (price as of 2026-10-02) |
| Feb. 28, 2019 | MXL | S | 34,575 | $25.36 | $876,822 | 41,703 Direct | -45.33% | Disposed | 317.7% (price as of 2026-10-02) |
| Feb. 28, 2019 | MXL | M | 34,575 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Jan. 10, 2019 | MXL | M | 6,217 | · | · | 41,703 Direct | +17.52% | Acquired | (price as of 2026-10-02) |
| Jan. 10, 2019 | MXL | M | 6,217 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 25, 2018 | MXL | A | 8,748 | · | · | 8,748 Direct | · | Acquired | (price as of 2026-10-02) |
| May 25, 2017 | MXL | M | 21,149 | $9.10 | $192,456 | 56,635 Direct | +59.60% | Acquired | 1064.1% (price as of 2026-10-02) |
| May 25, 2017 | MXL | S | 21,149 | $31.23 | $660,483 | 35,486 Direct | -37.34% | Disposed | 239.2% (price as of 2026-10-02) |
| May 25, 2017 | MXL | M | 21,149 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 24, 2017 | MXL | A | 4,138 | · | · | 4,138 Direct | · | Acquired | (price as of 2026-10-02) |
| May 18, 2017 | MXL | S | 30,766 | $30.92 | $951,285 | 35,486 Direct | -46.44% | Disposed | 242.6% (price as of 2026-10-02) |
| March 29, 2017 | MXL | J | 21,149 | · | · | 21,149 Direct | · | Acquired | (price as of 2026-10-02) |
| March 29, 2017 | MXL | J | 21,149 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 29, 2017 | MXL | J | 10,857 | · | · | 10,857 Direct | · | Acquired | (price as of 2026-10-02) |
| March 29, 2017 | MXL | J | 10,857 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 29, 2017 | MXL | J | 34,575 | · | · | 34,575 Direct | · | Acquired | (price as of 2026-10-02) |
| March 29, 2017 | MXL | J | 34,575 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 29, 2017 | MXL | J | 6,217 | · | · | 6,217 Direct | · | Acquired | (price as of 2026-10-02) |
| March 29, 2017 | MXL | J | 6,217 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 29, 2017 | MXL | C | 66,252 | · | · | 66,252 Direct | · | Acquired | (price as of 2026-10-02) |
| March 29, 2017 | MXL | C | 66,252 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 1, 2016 | MXL | A | 6,217 | · | · | 6,217 Direct | · | Acquired | (price as of 2026-10-02) |
| May 19, 2015 | MXL | A | 10,721 | · | · | 66,252 Direct | +19.31% | Acquired | (price as of 2026-10-02) |
| Nov. 17, 2014 | 703361 | A | 6,784 | · | · | 40,977 Direct | +19.84% | Acquired | |
| May 20, 2014 | MXL | A | 13,221 | · | · | 55,531 Direct | +31.25% | Acquired | (price as of 2026-10-02) |
| Nov. 15, 2013 | 703361 | A | 11,941 | · | · | 34,193 Direct | +53.66% | Acquired | |
| May 14, 2013 | MXL | A | 11,544 | · | · | 42,310 Direct | +37.52% | Acquired | (price as of 2026-10-02) |
| Nov. 15, 2012 | 703361 | A | 12,000 | · | · | 12,000 Direct | · | Acquired | |
| Nov. 15, 2012 | 703361 | A | 8,834 | · | · | 22,252 Direct | +65.84% | Acquired | |
| Aug. 10, 2012 | MXL | A | 14,134 | · | · | 30,766 Direct | +84.98% | Acquired | (price as of 2026-10-02) |
| May 10, 2012 | MXL | A | 16,632 | · | · | 16,632 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 15, 2011 | 703361 | A | 12,000 | · | · | 12,000 Direct | · | Acquired | |
| Nov. 15, 2011 | 703361 | A | 8,418 | · | · | 13,418 Direct | +168.36% | Acquired | |
| May 6, 2011 | MXL | A | 21,149 | · | · | 21,149 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 15, 2010 | 703361 | A | 10,000 | · | · | 10,000 Direct | · | Acquired | |
| Nov. 15, 2010 | 703361 | A | 5,000 | · | · | 5,000 Direct | · | Acquired | |
| March 29, 2010 | MXL | J | 34,575 | · | · | 34,575 Direct | · | Acquired | (price as of 2026-10-02) |
| March 29, 2010 | MXL | J | 34,575 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 23, 2010 | MXL | A | 10,857 | · | · | 10,857 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 16, 2009 | 703361 | A | 40,000 | · | · | 40,000 Direct | · | Acquired | |
| July 28, 2003 | QCOM | M | 160,000 | $7.02 | $1,123,200 | 327,723 Direct | +95.40% | Acquired | 5167.0% (price as of 2026-10-02) |
| July 28, 2003 | QCOM | D | 160,000 | $38.43 | $6,148,800 | 167,723 Direct | -48.82% | Disposed | 862.1% (price as of 2026-10-02) |
| July 28, 2003 | QCOM | D | 160,000 | $38.33 | $6,132,800 | 7,723 Direct | -95.40% | Disposed | 864.6% (price as of 2026-10-02) |
| July 28, 2003 | QCOM | M | 160,000 | · | · | 0 Direct | -100.00% | Disposed | (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 |
|---|---|---|---|---|---|---|---|
| May 12, 2021 | MXL | Restricted Stock Units | Common Stock | · | · | 5,944 | Acquired |
| Sept. 10, 2020 | MXL | Restricted Stock Units | Common Stock | · | · | 1,165 | Acquired |
| June 8, 2020 | MXL | Restricted Stock Units | Common Stock | · | · | 7,890 | Acquired |
| Feb. 13, 2020 | MXL | Stock Option (right to buy) | Common Stock | $14.00 | March 23, 2020 | 10,857 | Disposed |
| May 9, 2019 | MXL | Restricted Stock Units | Common Stock | · | · | 6,545 | Acquired |
| Feb. 28, 2019 | MXL | Stock Option (right to buy) | Common Stock | $7.45 | Oct. 26, 2019 | 34,575 | Disposed |
| Jan. 10, 2019 | MXL | Restricted Stock Units | Common Stock | · | · | 6,217 | Disposed |
| May 25, 2018 | MXL | Restricted Stock Units | Common Stock | · | · | 8,748 | Acquired |
| May 25, 2017 | MXL | Stock Option (Right to Buy) | Common Stock | $9.10 | May 6, 2018 | 21,149 | Disposed |
| May 24, 2017 | MXL | Restricted Stock Units | Common Stock | · | · | 4,138 | Acquired |
| March 29, 2017 | MXL | Stock Option (Right to Buy) | Common Stock | $9.10 | May 6, 2018 | 21,149 | Acquired |
| March 29, 2017 | MXL | Stock Option (Right to Buy) | Class A Common Stock | $9.10 | May 6, 2018 | 21,149 | Disposed |
| March 29, 2017 | MXL | Stock Option (Right to Buy) | Common Stock | $14.00 | March 23, 2020 | 10,857 | Acquired |
| March 29, 2017 | MXL | Stock Option (Right to Buy) | Class A Common Stock | $14.00 | March 23, 2020 | 10,857 | Disposed |
| March 29, 2017 | MXL | Stock Option (Right to Buy) | Common Stock | $7.45 | Oct. 26, 2019 | 34,575 | Acquired |
| March 29, 2017 | MXL | Stock Option (Right to Buy) | Class B Common Stock | $7.45 | Oct. 26, 2019 | 34,575 | Disposed |
| March 29, 2017 | MXL | Restricted Stock Units | Common Stock | · | · | 6,217 | Acquired |
| March 29, 2017 | MXL | Restricted Stock Units | Class A Common Stock | · | · | 6,217 | Disposed |
| June 1, 2016 | MXL | Restricted Stock Units | Class A Common Stock (par value $0.0001) | · | · | 6,217 | Acquired |
| Nov. 15, 2012 | 703361 | Non-Qualified Stock Option (right to buy) | Common Stock | $5.66 | Nov. 15, 2019 | 12,000 | Acquired |
| Nov. 15, 2011 | 703361 | Non-Qualified Stock Option (right to buy) | Common Stock | $5.94 | Nov. 15, 2018 | 12,000 | Acquired |
| May 6, 2011 | MXL | Stock Option (Right to Buy) | Class A Common Stock (par value $0.0001) | $9.10 | May 6, 2018 | 21,149 | Acquired |
| Nov. 15, 2010 | 703361 | Non-Qualified Stock Option (right to buy) | Common Stock | $6.14 | Nov. 15, 2017 | 10,000 | Acquired |
| March 29, 2010 | MXL | Stock Option (right to buy) | Class B Common Stock [F3] | $7.45 | Oct. 27, 2019 | 34,575 | Acquired |
| March 29, 2010 | MXL | Stock Option (right to buy) | Common Stock | $7.45 | Oct. 27, 2019 | 34,575 | Disposed |
| March 23, 2010 | MXL | Stock Option (right to buy) | Class A Common Stock ($0.0001 par value) | $14.00 | March 23, 2020 | 10,857 | Acquired |
| Nov. 16, 2009 | 703361 | Non-Qualified Stock Option (right to buy) | Common Stock | $6.00 | Nov. 16, 2016 | 40,000 | Acquired |
| July 28, 2003 | QCOM | Non-Qualified Stock Option (right to buy) | Common Stock | $7.02 | July 16, 2008 | 160,000 | Disposed |
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 |
|---|---|---|---|---|
| March 23, 2010 | MXL | Stock Option (right to buy) | 34,575 | Direct |