Michael E Stillabower
Insider
First SEC filing: Aug. 6, 2019 · Latest: Aug. 6, 2019
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. 2, 2019 | MMSI | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 2, 2019 | MMSI | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 2, 2019 | MMSI | M | 20,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 2, 2019 | MMSI | M | 25,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 2, 2019 | MMSI | M | 25,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 2, 2019 | MMSI | S | 40,750 | $40.05 | $1,632,038 | 107,868 Direct | -27.42% | Disposed | 113.2% (price as of 2026-10-02) |
| Aug. 2, 2019 | MMSI | M | 10,000 | $34.40 | $344,000 | 148,618 Direct | +7.21% | Acquired | 148.2% (price as of 2026-10-02) |
| Aug. 2, 2019 | MMSI | M | 15,000 | $18.80 | $282,000 | 138,618 Direct | +12.13% | Acquired | 354.1% (price as of 2026-10-02) |
| Aug. 2, 2019 | MMSI | M | 20,000 | $20.27 | $405,400 | 123,618 Direct | +19.30% | Acquired | 321.2% (price as of 2026-10-02) |
| Aug. 2, 2019 | MMSI | M | 25,000 | $13.99 | $349,750 | 103,618 Direct | +31.80% | Acquired | 510.2% (price as of 2026-10-02) |
| Aug. 2, 2019 | MMSI | M | 25,000 | $9.95 | $248,750 | 78,618 Direct | +46.63% | Acquired | 758.0% (price as of 2026-10-02) |
| March 4, 2019 | MMSI | S | 10,000 | $58.05 | $580,500 | 53,618 Direct | -15.72% | Disposed | 47.1% (price as of 2026-10-02) |
| March 4, 2019 | MMSI | M | 20,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 4, 2019 | MMSI | M | 20,000 | $12.91 | $258,200 | 63,618 Direct | +45.85% | Acquired | 561.3% (price as of 2026-10-02) |
| June 7, 2018 | MMSI | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 6, 2018 | MMSI | M | 20,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 6, 2018 | MMSI | S | 12,050 | $50.50 | $608,525 | 43,618 Direct | -21.65% | Disposed | 69.0% (price as of 2026-10-02) |
| June 6, 2018 | MMSI | M | 20,000 | $13.75 | $275,000 | 55,668 Direct | +56.07% | Acquired | 520.9% (price as of 2026-10-02) |
| May 24, 2017 | MMSI | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 19, 2017 | MMSI | M | 25,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 19, 2017 | MMSI | S | 17,110 | $33.71 | $576,778 | 35,668 Direct | -32.42% | Disposed | 153.2% (price as of 2026-10-02) |
| May 19, 2017 | MMSI | M | 25,000 | $13.16 | $329,000 | 52,778 Direct | +90.00% | Acquired | 548.7% (price as of 2026-10-02) |
| Aug. 15, 2016 | MMSI | M | 25,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 15, 2016 | MMSI | S | 25,000 | $24.29 | $607,250 | 27,778 Direct | -47.37% | Disposed | 251.5% (price as of 2026-10-02) |
| Aug. 15, 2016 | MMSI | M | 25,000 | $12.91 | $322,750 | 52,778 Direct | +90.00% | Acquired | 561.3% (price as of 2026-10-02) |
| May 26, 2016 | MMSI | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 22, 2015 | MMSI | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 13, 2015 | MMSI | M | 18,750 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 13, 2015 | MMSI | M | 18,750 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 13, 2015 | MMSI | S | 37,500 | $19.40 | $727,500 | 27,778 Direct | -57.45% | Disposed | 340.1% (price as of 2026-10-02) |
| March 13, 2015 | MMSI | M | 18,750 | $11.41 | $213,938 | 65,278 Direct | +40.30% | Acquired | 648.2% (price as of 2026-10-02) |
| March 13, 2015 | MMSI | M | 18,750 | $11.53 | $216,188 | 46,528 Direct | +67.50% | Acquired | 640.4% (price as of 2026-10-02) |
| June 11, 2014 | MMSI | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 29, 2013 | MMSI | M | 5,527 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Oct. 29, 2013 | MMSI | M | 18,750 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Oct. 29, 2013 | MMSI | S | 24,277 | $16.42 | $398,628 | 27,778 Direct | -46.64% | Disposed | 419.9% (price as of 2026-10-02) |
| Oct. 29, 2013 | MMSI | M | 5,527 | $9.70 | $53,612 | 52,055 Direct | +11.88% | Acquired | 780.1% (price as of 2026-10-02) |
| Oct. 29, 2013 | MMSI | M | 18,750 | $11.05 | $207,188 | 46,528 Direct | +67.50% | Acquired | 672.6% (price as of 2026-10-02) |
| Oct. 28, 2013 | MMSI | M | 13,223 | · | · | 5,527 Direct | -70.52% | Disposed | (price as of 2026-10-02) |
| Oct. 28, 2013 | MMSI | S | 13,223 | $16.41 | $216,989 | 27,778 Direct | -32.25% | Disposed | 420.2% (price as of 2026-10-02) |
| Oct. 28, 2013 | MMSI | M | 13,223 | $9.70 | $128,263 | 41,001 Direct | +47.60% | Acquired | 780.1% (price as of 2026-10-02) |
| May 22, 2013 | MMSI | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 24, 2012 | MMSI | M | 18,750 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 24, 2012 | MMSI | M | 33,334 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Aug. 24, 2012 | MMSI | S | 52,084 | $14.19 | $739,072 | 27,778 Direct | -65.22% | Disposed | 501.6% (price as of 2026-10-02) |
| Aug. 24, 2012 | MMSI | M | 18,750 | $9.22 | $172,875 | 79,862 Direct | +30.68% | Acquired | 825.9% (price as of 2026-10-02) |
| Aug. 24, 2012 | MMSI | M | 33,334 | $8.38 | $279,339 | 61,112 Direct | +120.00% | Acquired | 918.7% (price as of 2026-10-02) |
| May 23, 2012 | MMSI | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 15, 2012 | MMSI | M | 1,926 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 15, 2012 | MMSI | S | 1,926 | $12.43 | $23,940 | 27,778 Direct | -6.48% | Disposed | 586.8% (price as of 2026-10-02) |
| March 15, 2012 | MMSI | M | 1,926 | $7.65 | $14,734 | 29,704 Direct | +6.93% | Acquired | 1015.9% (price as of 2026-10-02) |
| Dec. 13, 2011 | MMSI | M | 1,082 | · | · | 1,926 Direct | -35.97% | Disposed | (price as of 2026-10-02) |
| Dec. 13, 2011 | MMSI | S | 1,082 | $13.65 | $14,769 | 27,778 Direct | -3.75% | Disposed | 525.4% (price as of 2026-10-02) |
| Dec. 13, 2011 | MMSI | M | 1,082 | $7.65 | $8,277 | 28,860 Direct | +3.90% | Acquired | 1015.9% (price as of 2026-10-02) |
| Dec. 2, 2011 | MMSI | M | 19,213 | · | · | 3,008 Direct | -86.46% | Disposed | (price as of 2026-10-02) |
| Dec. 2, 2011 | MMSI | S | 19,213 | $13.68 | $262,834 | 27,778 Direct | -40.89% | Disposed | 524.0% (price as of 2026-10-02) |
| Dec. 2, 2011 | MMSI | M | 19,213 | $7.65 | $146,979 | 46,991 Direct | +69.17% | Acquired | 1015.9% (price as of 2026-10-02) |
| Aug. 11, 2011 | MMSI | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 25, 2010 | MMSI | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 26, 2009 | MMSI | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-02) |
| July 29, 2008 | MMSI | M | 27,777 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| July 29, 2008 | MMSI | S | 13,777 | $20.50 | $282,428 | 22,222 Direct | -38.27% | Disposed | 420.5% (price as of 2026-10-02) |
| July 29, 2008 | MMSI | S | 2,562 | $20.48 | $52,470 | 35,999 Direct | -6.64% | Disposed | 421.1% (price as of 2026-10-02) |
| July 29, 2008 | MMSI | S | 11,438 | $20.28 | $231,963 | 38,561 Direct | -22.88% | Disposed | 426.2% (price as of 2026-10-02) |
| July 29, 2008 | MMSI | M | 27,777 | $2.85 | $79,164 | 49,999 Direct | +125.00% | Acquired | 3644.3% (price as of 2026-10-02) |
| May 21, 2008 | MMSI | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 27, 2007 | MMSI | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 25, 2006 | MMSI | A | 15,000 | $11.52 | $172,800 | 15,000 Direct | · | Acquired | 826.3% (price as of 2026-10-02) |
| May 25, 2005 | MMSI | A | 15,000 | $14.26 | $213,900 | 15,000 Direct | · | Acquired | 648.3% (price as of 2026-10-02) |
| June 10, 2004 | MMSI | A | 15,000 | $13.81 | $207,150 | 15,000 Direct | · | Acquired | 672.7% (price as of 2026-10-02) |
| March 12, 2004 | MMSI | M | 20,833 | $1.62 | $33,749 | 0 Direct | -100.00% | Disposed | 6487.2% (price as of 2026-10-02) |
| March 12, 2004 | MMSI | S | 20,833 | $22.58 | $470,409 | 22,222 Direct | +1499.86% | Acquired | 372.6% (price as of 2026-10-02) |
| March 12, 2004 | MMSI | M | 20,833 | $1.62 | $33,749 | 43,055 Direct | +93.75% | Acquired | 6487.2% (price as of 2026-10-02) |
| Dec. 13, 2003 | MMSI | A | 15,000 | $21.67 | $325,050 | 15,000 Direct | · | Acquired | 392.4% (price as of 2026-10-02) |
| July 25, 2003 | MMSI | M | 11,719 | $3.76 | $44,063 | 0 Direct | · | Acquired | 4945.5% (price as of 2026-10-02) |
| July 25, 2003 | MMSI | S | 11,719 | $25.60 | $300,006 | 12,500 Direct | +1500.51% | Acquired | 641.1% (price as of 2026-10-02) |
| July 25, 2003 | MMSI | A | 11,719 | $3.76 | $44,063 | 24,219 Direct | +93.75% | Acquired | 4945.5% (price as of 2026-10-02) |
| Aug. 8, 1988 | MMSI | M | 15,000 | $21.67 | $325,050 | 15,000 Direct | · | Acquired | 1951.8% (price as of 2026-10-02) |
| Aug. 8, 1988 | MMSI | M | 26,667 | $10.47 | $279,203 | 26,667 Direct | · | Acquired | 4146.8% (price as of 2026-10-02) |
| Aug. 8, 1988 | MMSI | M | 17,777 | $2.85 | $50,664 | 17,777 Direct | · | Acquired | 15501.2% (price as of 2026-10-02) |
| Aug. 8, 1988 | MMSI | M | 27,777 | $2.85 | $79,164 | 27,777 Direct | · | Acquired | 15501.2% (price as of 2026-10-02) |
| Aug. 8, 1988 | MMSI | M | 26,667 | $10.47 | $279,203 | 26,667 Direct | · | Acquired | 4146.8% (price as of 2026-10-02) |
| Aug. 8, 1988 | MMSI | M | 17,777 | $9.56 | $169,948 | 17,777 Direct | · | Acquired | 4551.0% (price as of 2026-10-02) |
| Aug. 8, 1988 | MMSI | M | 27,777 | $2.85 | $79,164 | 27,777 Direct | · | Acquired | 15501.2% (price as of 2026-10-02) |
| Aug. 8, 1988 | MMSI | M | 20,833 | $1.62 | $33,749 | 20,833 Direct | · | Acquired | 27346.6% (price as of 2026-10-02) |
| Aug. 8, 1988 | MMSI | M | 22,222 | · | · | 22,222 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 |
|---|---|---|---|---|---|---|---|
| Aug. 2, 2019 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $34.40 | May 24, 2024 | 10,000 | Disposed |
| Aug. 2, 2019 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $18.80 | May 26, 2023 | 15,000 | Disposed |
| Aug. 2, 2019 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $20.27 | May 22, 2022 | 20,000 | Disposed |
| Aug. 2, 2019 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $13.99 | June 11, 2021 | 25,000 | Disposed |
| Aug. 2, 2019 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $9.95 | May 22, 2020 | 25,000 | Disposed |
| March 4, 2019 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $12.91 | May 23, 2019 | 20,000 | Disposed |
| June 7, 2018 | MMSI | Common Stock | Common Stock | $50.50 | June 7, 2025 | 25,000 | Acquired |
| June 6, 2018 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $13.75 | Aug. 11, 2018 | 20,000 | Disposed |
| May 24, 2017 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $34.40 | May 24, 2024 | 25,000 | Acquired |
| May 19, 2017 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $13.16 | June 25, 2017 | 25,000 | Disposed |
| Aug. 15, 2016 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $13.82 | Sept. 26, 2016 | 25,000 | Disposed |
| May 26, 2016 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $18.80 | May 26, 2023 | 25,000 | Acquired |
| May 22, 2015 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $20.27 | May 22, 2022 | 25,000 | Acquired |
| March 13, 2015 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $11.53 | May 21, 2015 | 18,750 | Disposed |
| March 13, 2015 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $11.41 | May 25, 2015 | 18,750 | Disposed |
| June 11, 2014 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $13.99 | June 11, 2021 | 25,000 | Acquired |
| Oct. 29, 2013 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $9.70 | June 27, 2014 | 5,527 | Disposed |
| Oct. 29, 2013 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $11.05 | June 10, 2014 | 18,750 | Disposed |
| Oct. 28, 2013 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $9.70 | June 27, 2014 | 13,223 | Disposed |
| May 22, 2013 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $9.95 | May 22, 2020 | 25,000 | Acquired |
| Aug. 24, 2012 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $9.22 | May 25, 2013 | 18,750 | Disposed |
| Aug. 24, 2012 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $8.38 | May 22, 2013 | 33,334 | Disposed |
| May 23, 2012 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $12.91 | May 23, 2019 | 20,000 | Acquired |
| March 15, 2012 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $7.65 | May 23, 2012 | 1,926 | Disposed |
| Dec. 13, 2011 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $7.65 | May 23, 2012 | 1,082 | Disposed |
| Dec. 2, 2011 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $7.65 | May 23, 2012 | 19,213 | Disposed |
| Aug. 11, 2011 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $13.75 | Aug. 11, 2018 | 20,000 | Acquired |
| June 25, 2010 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $16.45 | June 25, 2017 | 20,000 | Acquired |
| Sept. 26, 2009 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $17.28 | Sept. 26, 2016 | 20,000 | Acquired |
| July 29, 2008 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $2.85 | May 23, 2011 | 27,777 | Disposed |
| May 21, 2008 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $14.41 | May 21, 2015 | 15,000 | Acquired |
| June 27, 2007 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $12.13 | June 27, 2014 | 15,000 | Acquired |
| May 25, 2006 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $11.52 | May 25, 2013 | 15,000 | Acquired |
| May 25, 2005 | MMSI | Non-qualified stock options (right to buy) | Common Stock | $14.26 | May 25, 2015 | 15,000 | Acquired |
| June 10, 2004 | MMSI | Non-qualified stock Options (right to buy) | Common Stock | $13.81 | June 10, 2014 | 15,000 | Acquired |
| March 12, 2004 | MMSI | Nonqualified Stock Options (right to buy) | Common Stock | $1.62 | May 24, 2005 | 20,833 | Disposed |
| Dec. 13, 2003 | MMSI | Non-qualified Stock Option (right to buy) | Common Stock | $21.67 | Dec. 13, 2013 | 15,000 | Acquired |
| July 25, 2003 | MMSI | Non-qualified Stock Option (right to buy) | Common Stock | $3.76 | May 26, 2004 | 11,719 | Acquired |
| Aug. 8, 1988 | MMSI | Nonqualified Stock Options (right to buy) | Common Stock | $21.67 | Dec. 13, 2013 | 15,000 | Acquired |
| Aug. 8, 1988 | MMSI | Nonqualified Stock Options (right to buy) | Common Stock | $10.47 | May 22, 2013 | 26,667 | Acquired |
| Aug. 8, 1988 | MMSI | Nonqualified Stock Options (right to buy) | Common Stock | $9.56 | May 23, 2012 | 17,777 | Acquired |
| Aug. 8, 1988 | MMSI | Nonqualified Stock Options (right to buy) | Common Stock | $2.85 | May 23, 2011 | 27,777 | Acquired |
| Aug. 8, 1988 | MMSI | Non-qualified Stock Option (right to buy) | Common Stock | · | May 22, 2013 | 26,667 | Acquired |
| Aug. 8, 1988 | MMSI | Non-qualified Stock Option (right to buy) | Common Stock | · | May 23, 2012 | 17,777 | Acquired |
| Aug. 8, 1988 | MMSI | Non-qualified Stock Option (right to buy) | Common Stock | · | May 23, 2011 | 27,777 | Acquired |
| Aug. 8, 1988 | MMSI | Non-qualified Stock Option (right to buy) | Common Stock | · | May 24, 2005 | 20,833 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).