SEC CIK 1202358
DURCAN DERMOT MARK
Reported ownership across 2 companies, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| MUview stock → | 1,929,300 | 2016-10-19 |
| CORview stock → | 31,767 | 2026-06-18 |
Position History — MU
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — MU
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2016-10-19 | Grant / award (derivative) | 261,121 | $0.00 | 261,121 |
| 2016-10-19 | Grant / award (derivative) | 113,174 | $0.00 | 113,174 |
| 2016-10-19 | Grant / award | 206,778 | $0.00 | 1,929,300 |
| 2016-10-16 | Tax withholding | 48,487 | $17.13 | 1,748,468 |
| 2016-10-16 | Tax withholding | 1,271 | $17.13 | 1,722,522 |
| 2016-10-16 | Tax withholding | 24,675 | $17.13 | 1,723,793 |
| 2016-10-14 | Tax withholding | 15,269 | $16.85 | 1,796,955 |
| 2016-10-11 | Option exercise (derivative) | 391,000 | $0.00 | 0 |
| 2016-10-11 | Tax withholding | 270,509 | $17.50 | 1,812,224 |
| 2016-10-11 | Option exercise | 391,000 | $7.59 | 2,082,733 |
| 2016-07-18 | Open-market sale | 1,803 | $13.28 | 1,298 |
| 2015-10-20 | Tax withholding | 15,369 | $19.16 | 1,691,733 |
| 2015-10-16 | Tax withholding | 74,352 | $18.66 | 1,707,102 |
| 2015-10-14 | Grant / award (derivative) | 72,793 | $0.00 | 72,793 |
| 2015-10-14 | Grant / award (derivative) | 155,268 | $0.00 | 155,268 |
| 2015-10-14 | Grant / award | 123,762 | $0.00 | 1,781,454 |
| 2015-10-12 | Tax withholding | 18,939 | $18.16 | 1,657,692 |
| 2014-12-31 | Gift | 30,000 | $0.00 | 1,676,631 |
| 2014-10-20 | Grant / award (derivative) | 154,100 | $0.00 | 154,100 |
| 2014-10-20 | Grant / award (derivative) | 75,300 | $0.00 | 75,300 |
| 2014-10-20 | Grant / award | 125,200 | $0.00 | 1,706,631 |
| 2014-10-20 | Tax withholding | 69,042 | $28.77 | 1,581,431 |
| 2014-10-16 | Tax withholding | 74,433 | $27.54 | 1,650,473 |
| 2014-10-13 | Tax withholding | 39,111 | $27.79 | 1,724,906 |
| 2014-06-12 | Grant / award (derivative) | 13,300 | $0.00 | 13,300 |
| 2014-06-12 | Grant / award | 10,300 | $0.00 | 1,757,117 |
| 2014-06-12 | Grant / award | 6,900 | $0.00 | 1,764,017 |
| 2014-06-02 | Open-market sale | 200,000 | $28.42 | 1,746,817 |
| 2014-04-15 | Open-market sale | 200,000 | $21.90 | 1,946,817 |
| 2014-02-18 | Gift | 7,500 | $0.00 | 2,146,817 |
| 2014-02-12 | Option exercise (derivative) | 125,000 | $0.00 | 0 |
| 2014-02-12 | Option exercise | 379,000 | $7.46 | 2,399,306 |
| 2014-02-12 | Tax withholding | 443,679 | $24.71 | 2,020,306 |
| 2014-02-12 | Tax withholding | 96,513 | $24.71 | 1,705,985 |
| 2014-02-12 | Option exercise | 125,000 | $15.91 | 1,802,498 |
| 2014-02-12 | Tax withholding | 244,989 | $24.71 | 2,154,317 |
| 2014-02-12 | Option exercise | 758,000 | $4.48 | 2,463,985 |
| 2013-10-16 | Grant / award (derivative) | 222,000 | $0.00 | 222,000 |
| 2013-10-16 | Tax withholding | 134,726 | $16.92 | 1,806,795 |
| 2013-10-16 | Tax withholding | 129,297 | $16.92 | 1,677,498 |
| 2013-10-16 | Tax withholding | 48,487 | $16.92 | 1,732,521 |
| 2013-10-16 | Grant / award | 200,000 | $0.00 | 1,932,521 |
| 2013-10-16 | Disposition to issuer | 124,000 | $0.00 | 1,941,521 |
| 2013-10-16 | Grant / award | 133,000 | $0.00 | 2,065,521 |
| 2013-10-11 | Tax withholding | 37,736 | $18.44 | 1,781,008 |
| 2013-10-07 | Tax withholding | 8,775 | $18.47 | 1,818,744 |
| 2013-09-23 | Option exercise (derivative) | 125,000 | $0.00 | 0 |
| 2013-09-23 | Tax withholding | 111,501 | $17.23 | 1,827,519 |
| 2013-09-23 | Option exercise | 125,000 | $14.35 | 1,939,020 |
| 2013-09-23 | Option exercise (derivative) | 125,000 | $0.00 | 0 |
| 2013-09-23 | Option exercise | 125,000 | $14.35 | 1,939,020 |
| 2013-09-23 | Tax withholding | 111,501 | $17.23 | 1,827,519 |
| 2012-10-16 | J (derivative) | 755,000 | $5.72 | 755,000 |
| 2012-10-16 | Grant / award | 393,000 | $0.00 | 1,552,020 |
| 2012-10-16 | Grant / award | 262,000 | $0.00 | 1,814,020 |
| 2012-10-11 | Tax withholding | 32,878 | $5.76 | 1,159,020 |
| 2012-10-05 | Tax withholding | 8,548 | $5.87 | 1,191,898 |
| 2012-10-03 | Tax withholding | 14,133 | $5.84 | 1,200,446 |
| 2011-10-11 | J (derivative) | 777,000 | $5.16 | 777,000 |
| 2011-10-11 | Tax withholding | 8,477 | $5.16 | 748,579 |
| 2011-10-11 | Grant / award | 273,000 | $0.00 | 1,239,579 |
| 2011-10-11 | Grant / award | 218,000 | $0.00 | 966,579 |
| 2011-10-08 | Tax withholding | 11,893 | $4.95 | 757,056 |
| 2011-10-05 | Tax withholding | 8,649 | $4.52 | 768,949 |
| 2011-10-03 | Tax withholding | 14,300 | $5.04 | 777,598 |
| 2011-08-27 | Tax withholding | 3,854 | $5.66 | 791,898 |
| 2010-10-11 | J (derivative) | 391,000 | $7.59 | 391,111 |
| 2010-10-11 | Tax withholding | 55,755 | $7.59 | 795,752 |
| 2010-10-11 | Grant / award | 124,000 | $0.00 | 851,507 |
| 2010-10-11 | Grant / award | 99,000 | $0.00 | 727,507 |
| 2010-10-08 | Tax withholding | 15,365 | $7.11 | 628,507 |
| 2010-10-05 | Tax withholding | 11,174 | $6.99 | 643,872 |
| 2010-10-03 | Tax withholding | 18,475 | $7.29 | 655,046 |
| 2010-09-26 | Tax withholding | 9,625 | $7.20 | 673,521 |
| 2010-08-27 | Tax withholding | 4,979 | $6.78 | 683,146 |
| 2010-07-01 | Tax withholding | 159,912 | $8.49 | 688,125 |
| 2009-10-08 | Gift | 22,829 | $8.22 | 848,037 |
| 2009-10-08 | Tax withholding | 11,893 | $8.22 | 870,866 |
| 2009-10-08 | J | 22,829 | $8.22 | 284,653 |
| 2009-10-05 | Tax withholding | 14,300 | $7.46 | 792,009 |
| 2009-10-05 | J | 27,450 | $7.46 | 261,824 |
| 2009-10-05 | Gift | 27,450 | $7.46 | 764,559 |
| 2009-10-05 | J (derivative) | 379,000 | $7.46 | 379,000 |
| 2009-10-05 | Disposition to issuer | 108,800 | $0.00 | 655,759 |
| 2009-10-05 | Grant / award | 126,000 | $0.00 | 882,759 |
| 2009-10-05 | Grant / award | 101,000 | $0.00 | 756,759 |
| 2009-09-28 | J | 14,300 | $8.10 | 234,374 |
| 2009-09-28 | Gift | 14,300 | $8.10 | 806,309 |
| 2009-09-28 | Tax withholding | 7,450 | $8.10 | 820,609 |
| 2009-08-27 | Tax withholding | 3,854 | $7.25 | 835,455 |
| 2009-08-27 | J | 7,396 | $7.25 | 220,074 |
| 2009-08-27 | Gift | 7,396 | $7.25 | 828,059 |
| 2009-02-13 | Gift | 10,362 | $3.94 | 839,309 |
| 2009-02-13 | Tax withholding | 6,305 | $3.94 | 849,671 |
| 2009-02-13 | J | 10,362 | $3.94 | 212,678 |
| 2008-10-08 | J | 22,829 | $3.91 | 202,316 |
| 2008-10-08 | Gift | 22,829 | $3.91 | 855,976 |
| 2008-10-08 | Tax withholding | 11,893 | $3.91 | 878,805 |
| 2008-10-03 | J (derivative) | 758,000 | $4.48 | 758,000 |
| 2008-10-03 | Grant / award | 208,000 | $0.00 | 890,698 |
| 2008-10-03 | Grant / award | 167,000 | $0.00 | 682,698 |
| 2008-10-01 | Disposition to issuer | 45,000 | $0.00 | 515,698 |
| 2008-09-30 | Gift | 10,958 | $4.03 | 179,487 |
| 2008-09-30 | Tax withholding | 5,709 | $4.03 | 571,656 |
| 2008-09-30 | J | 10,958 | $4.03 | 560,698 |
| 2008-09-26 | J | 14,300 | $4.67 | 168,529 |
| 2008-09-26 | Gift | 14,300 | $4.67 | 577,365 |
| 2008-09-26 | Tax withholding | 7,450 | $4.67 | 591,665 |
| 2008-08-27 | Tax withholding | 3,854 | $4.24 | 617,381 |
| 2008-08-27 | J | 7,396 | $4.24 | 154,229 |
| 2008-08-27 | Gift | 7,396 | $4.24 | 609,985 |
| 2008-02-13 | Tax withholding | 5,796 | $7.02 | 628,907 |
| 2008-02-13 | J | 10,870 | $7.02 | 146,833 |
| 2008-02-13 | Gift | 10,870 | $7.02 | 618,037 |
| 2008-02-13 | Gift | 10,870 | $7.02 | 610,365 |
| 2008-02-13 | J | 10,870 | $7.02 | 146,833 |
| 2008-02-13 | Tax withholding | 5,796 | $7.02 | 621,235 |
| 2007-11-19 | J | 7,672 | — | 135,963 |
| 2007-11-19 | Gift | 7,672 | — | 627,031 |
| 2007-11-19 | Tax withholding | 3,995 | $9.15 | 634,703 |
| 2007-10-08 | Grant / award | 312,501 | $0.00 | 638,698 |
| 2007-09-30 | Tax withholding | 5,708 | $11.10 | 337,155 |
| 2007-09-30 | Gift | 10,958 | — | 326,197 |
| 2007-09-30 | J | 10,958 | — | 128,291 |
| 2007-09-26 | Tax withholding | 7,449 | $10.41 | 357,164 |
| 2007-09-26 | Gift | 14,301 | — | 342,863 |
| 2007-09-26 | J | 14,301 | — | 117,333 |
| 2007-08-27 | Grant / award | 45,000 | — | 364,613 |
| 2007-02-13 | Tax withholding | 5,813 | $12.27 | 316,512 |
| 2007-02-13 | Gift | 10,854 | — | 103,032 |
| 2007-02-13 | Tax withholding | 5,813 | $12.27 | 319,613 |
| 2007-02-13 | Gift | 10,854 | — | 103,032 |
| 2006-11-19 | Gift | 7,671 | — | 92,178 |
| 2006-11-19 | Tax withholding | 3,995 | $14.57 | 333,179 |
| 2006-11-19 | Gift | 7,671 | — | 92,178 |
| 2006-11-19 | Tax withholding | 3,995 | $14.57 | 336,280 |
| 2006-09-30 | Gift | 10,959 | — | 84,507 |
| 2006-09-30 | Tax withholding | 5,708 | $17.40 | 347,946 |
| 2006-09-30 | Gift | 10,959 | — | 84,507 |
| 2006-09-30 | Tax withholding | 5,708 | $17.40 | 344,845 |
| 2006-09-26 | Grant / award | 195,800 | — | 364,613 |
| 2006-02-13 | Grant / award | 50,000 | — | 168,813 |
| 2006-02-13 | Grant / award | 50,000 | — | 168,813 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.