SEC CIK 1377232
Williams Michael J PhD
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| IDXXview stock → | 59,113 | 2016-08-11 |
Position History — IDXX
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — IDXX
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2016-08-11 | Option exercise (derivative) | 2,576 | — | 0 |
| 2016-08-11 | Option exercise | 2,576 | $38.80 | 59,113 |
| 2016-08-08 | Option exercise (derivative) | 42,698 | — | 0 |
| 2016-08-08 | Open-market sale | 28,128 | $108.96 | 56,537 |
| 2016-08-08 | Option exercise | 21,432 | $38.80 | 63,399 |
| 2016-08-08 | Option exercise | 42,698 | $38.49 | 84,665 |
| 2016-08-08 | Open-market sale | 21,432 | $108.92 | 41,967 |
| 2016-06-01 | Option exercise (derivative) | 2,598 | — | 11,267 |
| 2016-06-01 | Tax withholding | 805 | $88.18 | 41,891 |
| 2016-06-01 | Option exercise | 2,598 | $0.00 | 42,696 |
| 2016-02-24 | Open-market sale | 2,000 | $71.93 | 40,011 |
| 2016-02-14 | Option exercise (derivative) | 403 | — | 14,337 |
| 2016-02-14 | Option exercise (derivative) | 472 | — | 13,865 |
| 2016-02-14 | Grant / award (derivative) | 13,424 | — | 13,424 |
| 2016-02-14 | Grant / award (derivative) | 1,476 | — | 1,476 |
| 2016-02-14 | Option exercise (derivative) | 545 | — | 14,740 |
| 2016-02-14 | Option exercise (derivative) | 514 | — | 15,285 |
| 2016-02-14 | Option exercise (derivative) | 514 | — | 15,799 |
| 2016-02-14 | Grant / award (derivative) | 3,685 | — | 16,313 |
| 2016-02-14 | Option exercise | 545 | $0.00 | 41,915 |
| 2016-02-14 | Option exercise | 514 | $0.00 | 41,370 |
| 2016-02-14 | Option exercise | 403 | $0.00 | 42,318 |
| 2016-02-14 | Option exercise | 472 | $0.00 | 42,790 |
| 2016-02-14 | Tax withholding | 779 | $67.85 | 42,011 |
| 2016-02-14 | Option exercise | 514 | $0.00 | 40,856 |
| 2016-02-14 | Option exercise (derivative) | 545 | — | 14,740 |
| 2016-02-14 | Grant / award (derivative) | 41,259 | — | 41,259 |
| 2016-02-14 | Grant / award (derivative) | 1,476 | — | 1,476 |
| 2016-02-14 | Grant / award (derivative) | 3,685 | — | 16,313 |
| 2016-02-14 | Option exercise (derivative) | 514 | — | 15,799 |
| 2016-02-14 | Option exercise (derivative) | 514 | — | 15,285 |
| 2016-02-14 | Option exercise (derivative) | 403 | — | 14,337 |
| 2016-02-14 | Option exercise (derivative) | 472 | — | 13,865 |
| 2016-02-14 | Option exercise | 545 | $0.00 | 41,915 |
| 2016-02-14 | Option exercise | 514 | $0.00 | 41,370 |
| 2016-02-14 | Tax withholding | 779 | $67.85 | 42,011 |
| 2016-02-14 | Option exercise | 403 | $0.00 | 42,318 |
| 2016-02-14 | Option exercise | 472 | $0.00 | 42,790 |
| 2016-02-14 | Option exercise | 514 | $0.00 | 40,856 |
| 2015-12-05 | Option exercise (derivative) | 962 | — | 12,628 |
| 2015-12-05 | Option exercise | 962 | $0.00 | 40,695 |
| 2015-12-05 | Tax withholding | 437 | $70.40 | 40,258 |
| 2015-08-18 | Option exercise (derivative) | 3,750 | $0.00 | 0 |
| 2015-08-18 | Option exercise (derivative) | 6,586 | $0.00 | 0 |
| 2015-08-18 | Option exercise | 6,586 | $26.66 | 36,672 |
| 2015-08-18 | Option exercise | 5,818 | $17.19 | 39,654 |
| 2015-08-18 | Option exercise | 3,750 | $26.66 | 33,836 |
| 2015-08-18 | Open-market sale | 6,586 | $78.34 | 30,086 |
| 2015-08-10 | Option exercise (derivative) | 5,000 | $0.00 | 6,586 |
| 2015-08-10 | Option exercise (derivative) | 2,482 | $0.00 | 0 |
| 2015-08-10 | Open-market sale | 6,532 | $77.93 | 31,036 |
| 2015-08-10 | Open-market sale | 3,194 | $77.96 | 30,086 |
| 2015-08-10 | Option exercise | 5,000 | $26.66 | 35,086 |
| 2015-08-10 | Option exercise | 2,482 | $17.19 | 37,568 |
| 2015-06-01 | Option exercise (derivative) | 1,299 | $0.00 | 6,795 |
| 2015-06-01 | Tax withholding | 86 | $135.53 | 16,599 |
| 2015-06-01 | Option exercise | 1,299 | $0.00 | 16,685 |
| 2015-02-14 | Option exercise (derivative) | 202 | $0.00 | 9,280 |
| 2015-02-14 | Option exercise (derivative) | 258 | $0.00 | 8,492 |
| 2015-02-14 | Option exercise (derivative) | 257 | $0.00 | 8,750 |
| 2015-02-14 | Option exercise (derivative) | 273 | $0.00 | 9,007 |
| 2015-02-14 | Option exercise (derivative) | 398 | $0.00 | 8,094 |
| 2015-02-14 | Grant / award (derivative) | 1,179 | $0.00 | 9,482 |
| 2015-02-14 | Grant / award (derivative) | 628 | $0.00 | 628 |
| 2015-02-14 | Grant / award (derivative) | 13,424 | $0.00 | 13,424 |
| 2015-02-14 | Option exercise | 202 | $0.00 | 14,279 |
| 2015-02-14 | Option exercise | 398 | $0.00 | 15,465 |
| 2015-02-14 | Option exercise | 258 | $0.00 | 15,067 |
| 2015-02-14 | Tax withholding | 121 | $159.08 | 15,344 |
| 2015-02-14 | Option exercise | 273 | $0.00 | 14,552 |
| 2015-02-14 | Option exercise | 257 | $0.00 | 14,809 |
| 2014-12-05 | Option exercise (derivative) | 481 | $0.00 | 8,303 |
| 2014-12-05 | Tax withholding | 155 | $148.62 | 14,033 |
| 2014-12-05 | Option exercise | 481 | $0.00 | 14,188 |
| 2014-06-01 | Option exercise (derivative) | 1,299 | $0.00 | 8,784 |
| 2014-06-01 | Option exercise | 1,299 | $0.00 | 14,033 |
| 2014-06-01 | Tax withholding | 420 | $128.48 | 13,613 |
| 2014-02-14 | Option exercise (derivative) | 273 | $0.00 | 11,397 |
| 2014-02-14 | Option exercise (derivative) | 398 | $0.00 | 10,483 |
| 2014-02-14 | Option exercise (derivative) | 258 | $0.00 | 10,881 |
| 2014-02-14 | Option exercise (derivative) | 258 | $0.00 | 11,139 |
| 2014-02-14 | Option exercise (derivative) | 400 | $0.00 | 10,083 |
| 2014-02-14 | Grant / award (derivative) | 1,008 | $0.00 | 11,670 |
| 2014-02-14 | Grant / award (derivative) | 806 | $0.00 | 806 |
| 2014-02-14 | Grant / award (derivative) | 9,499 | $0.00 | 9,499 |
| 2014-02-14 | Option exercise | 258 | $0.00 | 12,157 |
| 2014-02-14 | Option exercise | 273 | $0.00 | 11,899 |
| 2014-02-14 | Option exercise | 258 | $0.00 | 12,415 |
| 2014-02-14 | Option exercise | 398 | $0.00 | 12,813 |
| 2014-02-14 | Option exercise | 400 | $0.00 | 13,213 |
| 2014-02-14 | Tax withholding | 538 | $124.00 | 12,675 |
| 2013-12-05 | Grant / award (derivative) | 2,404 | $0.00 | 10,662 |
| 2013-12-05 | Grant / award (derivative) | 24,501 | $0.00 | 24,501 |
| 2013-11-04 | Option exercise (derivative) | 2 | $0.00 | 2,909 |
| 2013-11-04 | Option exercise (derivative) | 3,834 | $0.00 | 5,793 |
| 2013-11-04 | Option exercise (derivative) | 2,186 | $0.00 | 0 |
| 2013-11-04 | Option exercise (derivative) | 1,756 | $0.00 | 0 |
| 2013-11-04 | Open-market sale | 6,020 | $108.19 | 11,566 |
| 2013-11-04 | Option exercise | 3,834 | $53.31 | 13,642 |
| 2013-11-04 | Option exercise | 3,942 | $56.95 | 17,584 |
| 2013-11-04 | Option exercise | 2 | $34.37 | 17,586 |
| 2013-09-05 | Option exercise (derivative) | 4,149 | $0.00 | 1,241 |
| 2013-09-05 | Open-market sale | 5,162 | $95.58 | 9,754 |
| 2013-09-05 | Option exercise | 4,149 | $34.37 | 14,916 |
| 2013-06-01 | Option exercise (derivative) | 1,299 | $0.00 | 8,258 |
| 2013-06-01 | Option exercise | 1,299 | $0.00 | 11,354 |
| 2013-06-01 | Tax withholding | 655 | $82.44 | 10,699 |
| 2013-02-14 | Option exercise (derivative) | 258 | $0.00 | 10,699 |
| 2013-02-14 | Option exercise (derivative) | 258 | $0.00 | 10,957 |
| 2013-02-14 | Option exercise (derivative) | 399 | $0.00 | 10,300 |
| 2013-02-14 | Grant / award (derivative) | 1,363 | $0.00 | 11,215 |
| 2013-02-14 | Grant / award (derivative) | 1,090 | $0.00 | 1,090 |
| 2013-02-14 | Grant / award (derivative) | 13,018 | $0.00 | 13,018 |
| 2013-02-14 | Option exercise (derivative) | 343 | $0.00 | 9,557 |
| 2013-02-14 | Option exercise (derivative) | 400 | $0.00 | 9,900 |
| 2013-02-14 | Option exercise | 399 | $0.00 | 10,081 |
| 2013-02-14 | Tax withholding | 835 | $91.68 | 9,989 |
| 2013-02-14 | Option exercise | 258 | $0.00 | 9,424 |
| 2013-02-14 | Option exercise | 400 | $0.00 | 10,481 |
| 2013-02-14 | Option exercise | 343 | $0.00 | 10,824 |
| 2013-02-14 | Option exercise | 258 | $0.00 | 9,682 |
| 2013-02-01 | Option exercise (derivative) | 15,764 | $0.00 | 2,186 |
| 2013-02-01 | Option exercise (derivative) | 7,668 | $0.00 | 9,627 |
| 2013-02-01 | Open-market sale | 862 | $94.96 | 9,166 |
| 2013-02-01 | Option exercise | 7,668 | $53.31 | 17,696 |
| 2013-02-01 | Open-market sale | 23,432 | $94.68 | 10,028 |
| 2013-02-01 | Option exercise | 15,764 | $56.95 | 33,460 |
| 2012-11-12 | Option exercise (derivative) | 1,294 | $0.00 | 0 |
| 2012-11-12 | Option exercise (derivative) | 12,449 | $0.00 | 5,390 |
| 2012-11-12 | Option exercise (derivative) | 2,500 | $0.00 | 1,294 |
| 2012-11-12 | Open-market sale | 1,294 | $89.16 | 9,965 |
| 2012-11-12 | Open-market sale | 12,449 | $89.13 | 11,259 |
| 2012-11-12 | Option exercise | 2,500 | $28.66 | 22,414 |
| 2012-11-12 | Option exercise | 12,449 | $34.37 | 19,914 |
| 2012-11-12 | Option exercise | 1,294 | $28.66 | 23,708 |
| 2012-11-01 | Option exercise (derivative) | 2,806 | $0.00 | 0 |
| 2012-11-01 | Open-market sale | 2,806 | $96.02 | 7,596 |
| 2012-11-01 | Open-market sale | 131 | $96.00 | 7,465 |
| 2012-11-01 | Option exercise | 2,806 | $28.66 | 10,402 |
| 2012-06-01 | Option exercise (derivative) | 1,299 | $0.00 | 9,852 |
| 2012-06-01 | Tax withholding | 583 | $81.92 | 7,488 |
| 2012-06-01 | Option exercise | 1,299 | $0.00 | 8,071 |
| 2012-05-07 | Option exercise (derivative) | 3,758 | $0.00 | 0 |
| 2012-05-07 | Option exercise (derivative) | 16,682 | $0.00 | 0 |
| 2012-05-07 | Open-market sale | 24,352 | $88.19 | 6,772 |
| 2012-05-07 | Option exercise | 20,440 | $41.94 | 31,124 |
| 2012-02-14 | Option exercise (derivative) | 400 | $0.00 | 11,970 |
| 2012-02-14 | Option exercise (derivative) | 258 | $0.00 | 12,769 |
| 2012-02-14 | Option exercise (derivative) | 476 | $0.00 | 11,151 |
| 2012-02-14 | Grant / award (derivative) | 11,662 | $0.00 | 11,662 |
| 2012-02-14 | Option exercise (derivative) | 399 | $0.00 | 12,370 |
| 2012-02-14 | Option exercise (derivative) | 343 | $0.00 | 11,627 |
| 2012-02-14 | Grant / award (derivative) | 1,287 | $0.00 | 13,027 |
| 2012-02-14 | Grant / award (derivative) | 1,143 | $0.00 | 1,143 |
| 2012-02-14 | Option exercise | 258 | $0.00 | 9,610 |
| 2012-02-14 | Option exercise | 399 | $0.00 | 10,009 |
| 2012-02-14 | Option exercise | 400 | $0.00 | 10,409 |
| 2012-02-14 | Option exercise | 343 | $0.00 | 10,752 |
| 2012-02-14 | Option exercise | 476 | $0.00 | 11,228 |
| 2012-02-14 | Tax withholding | 623 | $87.42 | 10,605 |
| 2011-06-01 | Grant / award (derivative) | 21,349 | $0.00 | 21,349 |
| 2011-06-01 | Grant / award (derivative) | 6,495 | $0.00 | 11,740 |
| 2011-04-28 | Option exercise (derivative) | 1,678 | $0.00 | 0 |
| 2011-04-28 | Option exercise (derivative) | 3,844 | $0.00 | 0 |
| 2011-04-28 | Option exercise (derivative) | 7,000 | $0.00 | 2,806 |
| 2011-04-28 | Option exercise | 1,678 | $38.34 | 21,676 |
| 2011-04-28 | Open-market sale | 12,522 | $80.90 | 9,154 |
| 2011-04-28 | Option exercise | 3,844 | $38.34 | 19,998 |
| 2011-04-28 | Option exercise | 7,000 | $28.66 | 16,154 |
| 2011-02-16 | Option exercise (derivative) | 2,472 | $0.00 | 0 |
| 2011-02-16 | Option exercise (derivative) | 8,128 | $0.00 | 0 |
| 2011-02-16 | Option exercise | 8,128 | $25.45 | 19,665 |
| 2011-02-16 | Open-market sale | 1,260 | $78.21 | 9,144 |
| 2011-02-16 | Option exercise | 2,472 | $25.45 | 11,537 |
| 2011-02-16 | Open-market sale | 10,600 | $78.13 | 9,065 |
| 2011-02-14 | Option exercise (derivative) | 476 | $0.00 | 6,387 |
| 2011-02-14 | Grant / award (derivative) | 10,716 | $0.00 | 10,716 |
| 2011-02-14 | Option exercise (derivative) | 399 | $0.00 | 5,245 |
| 2011-02-14 | Option exercise (derivative) | 400 | $0.00 | 5,644 |
| 2011-02-14 | Option exercise (derivative) | 343 | $0.00 | 6,044 |
| 2011-02-14 | Option exercise (derivative) | 274 | $0.00 | 6,863 |
| 2011-02-14 | Grant / award (derivative) | 1,289 | $0.00 | 7,137 |
| 2011-02-14 | Grant / award (derivative) | 1,288 | $0.00 | 1,288 |
| 2011-02-14 | Option exercise | 400 | $0.00 | 10,637 |
| 2011-02-14 | Tax withholding | 632 | $77.59 | 10,404 |
| 2011-02-14 | Option exercise | 274 | $0.00 | 9,418 |
| 2011-02-14 | Option exercise | 476 | $0.00 | 9,894 |
| 2011-02-14 | Option exercise | 399 | $0.00 | 11,036 |
| 2011-02-14 | Option exercise | 343 | $0.00 | 10,237 |
| 2010-11-24 | Open-market sale | 2,661 | $65.16 | 9,078 |
| 2010-06-14 | Option exercise (derivative) | 10,500 | $0.00 | 0 |
| 2010-06-14 | Option exercise | 10,500 | $16.39 | 20,289 |
| 2010-06-14 | Open-market sale | 439 | $64.66 | 11,600 |
| 2010-06-14 | Open-market sale | 8,250 | $64.41 | 12,039 |
| 2010-03-03 | Open-market sale | 1,623 | $56.10 | 9,674 |
| 2010-02-14 | Option exercise (derivative) | 400 | $0.00 | 5,848 |
| 2010-02-14 | Option exercise (derivative) | 344 | $0.00 | 6,248 |
| 2010-02-14 | Option exercise (derivative) | 476 | $0.00 | 6,592 |
| 2010-02-14 | Option exercise (derivative) | 274 | $0.00 | 7,068 |
| 2010-02-14 | Grant / award (derivative) | 1,993 | $0.00 | 7,342 |
| 2010-02-14 | Grant / award (derivative) | 17,295 | $0.00 | 17,295 |
| 2010-02-14 | Grant / award (derivative) | 1,875 | $0.00 | 1,875 |
| 2010-02-14 | Option exercise | 274 | $0.00 | 10,635 |
| 2010-02-14 | Option exercise | 344 | $0.00 | 11,455 |
| 2010-02-14 | Tax withholding | 558 | $53.31 | 11,297 |
| 2010-02-14 | Option exercise | 400 | $0.00 | 11,855 |
| 2010-02-14 | Option exercise | 476 | $0.00 | 11,111 |
| 2009-09-15 | Option exercise (derivative) | 2,500 | $0.00 | 11,500 |
| 2009-09-15 | Option exercise | 2,500 | $16.39 | 10,198 |
| 2009-09-14 | Option exercise (derivative) | 2,738 | $0.00 | 13,000 |
| 2009-09-14 | Option exercise (derivative) | 3,000 | $0.00 | 2,472 |
| 2009-09-14 | Option exercise | 2,738 | $16.39 | 10,436 |
| 2009-09-14 | Option exercise | 3,000 | $25.45 | 10,698 |
| 2009-09-14 | Open-market sale | 2,738 | $52.25 | 7,698 |
| 2009-09-11 | Option exercise (derivative) | 112 | $0.00 | 19,888 |
| 2009-09-11 | Option exercise (derivative) | 4,150 | $0.00 | 15,738 |
| 2009-09-11 | Option exercise | 112 | $16.39 | 7,810 |
| 2009-09-11 | Open-market sale | 4,150 | $52.28 | 7,698 |
| 2009-09-11 | Option exercise | 4,150 | $16.39 | 11,848 |
| 2009-02-14 | Option exercise (derivative) | 344 | $0.00 | 3,349 |
| 2009-02-14 | Grant / award (derivative) | 2,911 | $0.00 | 2,911 |
| 2009-02-14 | Grant / award (derivative) | 17,839 | $0.00 | 17,839 |
| 2009-02-14 | Option exercise (derivative) | 276 | $0.00 | 4,171 |
| 2009-02-14 | Grant / award (derivative) | 2,000 | $0.00 | 5,349 |
| 2009-02-14 | Option exercise (derivative) | 478 | $0.00 | 3,693 |
| 2009-02-14 | Option exercise | 344 | $0.00 | 7,682 |
| 2009-02-14 | Tax withholding | 411 | $34.37 | 7,271 |
| 2009-02-14 | Option exercise | 276 | $0.00 | 6,860 |
| 2009-02-14 | Option exercise | 478 | $0.00 | 7,338 |
| 2008-08-13 | Open-market sale | 480 | $56.96 | 6,495 |
| 2008-08-13 | Open-market sale | 646 | $57.01 | 6,975 |
| 2008-02-14 | Option exercise (derivative) | 276 | $0.00 | 3,208 |
| 2008-02-14 | Grant / award (derivative) | 1,756 | $56.95 | 1,756 |
| 2008-02-14 | Grant / award (derivative) | 1,717 | $0.00 | 4,447 |
| 2008-02-14 | Option exercise (derivative) | 478 | $0.00 | 2,730 |
| 2008-02-14 | Grant / award (derivative) | 17,950 | $56.95 | 17,950 |
| 2008-02-14 | Option exercise | 478 | $0.00 | 7,539 |
| 2008-02-14 | Grant / award | 1,537 | $56.95 | 6,785 |
| 2008-02-14 | Option exercise | 276 | $0.00 | 7,061 |
| 2008-02-14 | Tax withholding | 282 | $56.95 | 7,257 |
| 2007-09-11 | Open-market sale | 300 | $115.40 | 2,566 |
| 2007-09-11 | Open-market sale | 432 | $115.34 | 2,866 |
| 2007-02-14 | Grant / award (derivative) | 1,879 | $83.87 | 1,879 |
| 2007-02-14 | Grant / award (derivative) | 8,341 | $83.87 | 8,341 |
| 2007-02-14 | Grant / award (derivative) | 1,192 | — | 1,742 |
| 2007-02-14 | Option exercise (derivative) | 138 | — | 550 |
| 2007-02-14 | Option exercise | 138 | $0.00 | 2,448 |
| 2007-02-14 | Grant / award | 745 | $83.87 | 3,142 |
| 2007-02-14 | Tax withholding | 51 | $83.87 | 2,397 |
| 2006-09-27 | — | — | — | 2,238 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.