SEC CIK 1210707
PORCELAIN MICHAEL
Reported ownership across 2 companies, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| CMTLview stock → | 173,748 | 2022-08-09 |
| AIRIview stock → | 81,274 | 2026-08-27 |
Position History — CMTL
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — CMTL
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2022-08-09 | Option exercise (derivative) | 2,822 | $0.00 | 65,714 |
| 2022-08-09 | Option exercise | 2,822 | — | 173,748 |
| 2022-08-09 | Tax withholding | 1,441 | $10.95 | 172,307 |
| 2022-08-09 | Option exercise (derivative) | 2,446 | $0.00 | 68,536 |
| 2022-08-09 | Option exercise | 2,446 | — | 172,175 |
| 2022-08-09 | Tax withholding | 1,249 | $10.95 | 170,926 |
| 2022-08-09 | Tax withholding | 2,471 | $10.95 | 202,003 |
| 2022-08-09 | Option exercise (derivative) | 65,714 | $0.00 | 0 |
| 2022-08-09 | Option exercise | 65,714 | — | 238,021 |
| 2022-08-09 | Tax withholding | 33,547 | $10.95 | 204,474 |
| 2022-08-08 | Option exercise (derivative) | 1,370 | $0.00 | 70,982 |
| 2022-08-08 | Tax withholding | 700 | $11.86 | 169,729 |
| 2022-08-08 | Option exercise | 1,370 | — | 170,429 |
| 2022-08-04 | Option exercise (derivative) | 4,721 | $0.00 | 72,352 |
| 2022-08-04 | Option exercise | 4,721 | — | 171,470 |
| 2022-08-04 | Tax withholding | 2,411 | $11.64 | 169,059 |
| 2022-07-31 | Option exercise (derivative) | 34,708 | — | 77,236 |
| 2022-07-31 | Option exercise | 34,708 | — | 183,652 |
| 2022-07-31 | Tax withholding | 16,903 | $11.62 | 166,749 |
| 2022-07-28 | Option exercise (derivative) | 3,708 | — | 111,944 |
| 2022-07-28 | Grant / award (derivative) | 80,944 | — | 115,652 |
| 2022-07-28 | Tax withholding | 3,708 | $11.42 | 148,944 |
| 2022-07-28 | Option exercise | 3,708 | — | 152,652 |
| 2022-07-21 | Open-market buy | 2,380 | $10.52 | 148,944 |
| 2022-07-18 | Open-market buy | 5,500 | $9.53 | 145,814 |
| 2022-07-18 | Open-market buy | 750 | $9.52 | 146,564 |
| 2022-01-03 | Grant / award (derivative) | 14,608 | $0.00 | 64,270 |
| 2022-01-03 | Grant / award (derivative) | 12,803 | $0.00 | 77,073 |
| 2021-10-04 | Option exercise (derivative) | 800 | $0.00 | 49,662 |
| 2021-10-04 | Tax withholding | 426 | $25.38 | 140,314 |
| 2021-10-04 | Option exercise | 800 | — | 140,740 |
| 2021-09-27 | Grant / award | 6,761 | — | 141,682 |
| 2021-09-27 | Tax withholding | 3,593 | $26.09 | 138,089 |
| 2021-09-27 | Tax withholding | 2,100 | $26.09 | 139,940 |
| 2021-09-27 | Grant / award | 3,951 | — | 142,040 |
| 2021-08-10 | Grant / award (derivative) | 15,519 | $0.00 | 50,462 |
| 2021-08-09 | Tax withholding | 1,513 | $26.11 | 132,453 |
| 2021-08-09 | Option exercise (derivative) | 2,445 | $0.00 | 37,766 |
| 2021-08-09 | Tax withholding | 1,300 | $26.11 | 133,598 |
| 2021-08-09 | Option exercise | 2,445 | — | 134,898 |
| 2021-08-09 | Option exercise (derivative) | 2,823 | $0.00 | 34,943 |
| 2021-08-09 | Tax withholding | 1,500 | $26.11 | 134,921 |
| 2021-08-09 | Option exercise | 2,823 | — | 136,421 |
| 2021-08-08 | Option exercise (derivative) | 1,370 | $0.00 | 40,211 |
| 2021-08-08 | Option exercise | 1,370 | — | 134,694 |
| 2021-08-08 | Tax withholding | 728 | $26.27 | 133,966 |
| 2021-08-04 | Option exercise (derivative) | 4,721 | $0.00 | 41,581 |
| 2021-08-04 | Tax withholding | 2,509 | $24.72 | 133,324 |
| 2021-08-04 | Option exercise | 4,721 | — | 135,833 |
| 2021-07-31 | Grant / award (derivative) | 36,449 | — | 36,449 |
| 2021-07-31 | Option exercise (derivative) | 1,741 | — | 34,708 |
| 2021-07-31 | Option exercise | 1,741 | — | 132,853 |
| 2021-07-31 | Tax withholding | 1,741 | $24.97 | 131,112 |
| 2021-07-31 | Option exercise (derivative) | 27,458 | — | 0 |
| 2021-07-31 | Option exercise | 27,458 | — | 145,056 |
| 2021-07-31 | Tax withholding | 13,944 | $24.97 | 131,112 |
| 2020-10-04 | Option exercise (derivative) | 801 | $0.00 | 46,302 |
| 2020-10-04 | Option exercise | 801 | — | 117,991 |
| 2020-10-04 | Tax withholding | 393 | $13.97 | 117,598 |
| 2020-09-22 | Tax withholding | 6,300 | $14.61 | 117,190 |
| 2020-09-22 | Grant / award | 12,863 | — | 123,490 |
| 2020-08-09 | Option exercise (derivative) | 2,822 | $0.00 | 47,103 |
| 2020-08-09 | Tax withholding | 1,382 | $17.56 | 110,627 |
| 2020-08-09 | Option exercise | 2,822 | — | 112,009 |
| 2020-08-09 | Tax withholding | 1,394 | $17.56 | 107,940 |
| 2020-08-09 | Option exercise (derivative) | 2,445 | $0.00 | 49,925 |
| 2020-08-09 | Tax withholding | 1,198 | $17.56 | 109,187 |
| 2020-08-09 | Option exercise | 2,445 | — | 110,385 |
| 2020-08-08 | Option exercise (derivative) | 1,370 | $0.00 | 52,370 |
| 2020-08-08 | Option exercise | 1,370 | — | 110,005 |
| 2020-08-08 | Tax withholding | 671 | $17.56 | 109,334 |
| 2020-08-04 | Grant / award (derivative) | 23,607 | $0.00 | 53,740 |
| 2020-07-31 | Option exercise (derivative) | 1,265 | — | 27,458 |
| 2020-07-31 | Grant / award (derivative) | 28,723 | — | 28,723 |
| 2020-07-31 | Option exercise | 1,265 | — | 109,900 |
| 2020-07-31 | Tax withholding | 1,265 | $16.42 | 108,635 |
| 2020-07-31 | Option exercise (derivative) | 28,625 | — | 0 |
| 2020-07-31 | Tax withholding | 13,345 | $16.42 | 108,635 |
| 2020-07-31 | Option exercise | 28,625 | — | 121,980 |
| 2020-05-28 | Grant / award (derivative) | 14,000 | $0.00 | 258,000 |
| 2020-05-28 | Grant / award (derivative) | 14,000 | $0.00 | 272,000 |
| 2020-05-28 | Grant / award (derivative) | 14,000 | $0.00 | 244,000 |
| 2020-05-28 | Grant / award (derivative) | 14,000 | $0.00 | 216,000 |
| 2020-05-28 | Grant / award (derivative) | 14,000 | $0.00 | 230,000 |
| 2019-11-04 | Option exercise (derivative) | 43,750 | $0.00 | 202,000 |
| 2019-11-04 | Tax withholding | 39,691 | $35.25 | 94,799 |
| 2019-11-04 | J | 1,444 | $0.00 | 93,355 |
| 2019-11-04 | Option exercise | 43,750 | $28.84 | 134,490 |
| 2019-10-04 | Option exercise (derivative) | 800 | $0.00 | 30,133 |
| 2019-10-04 | Tax withholding | 392 | $31.11 | 90,740 |
| 2019-10-04 | Option exercise | 800 | — | 91,132 |
| 2019-09-24 | Grant / award | 15,056 | — | 97,705 |
| 2019-09-24 | Tax withholding | 7,373 | $29.82 | 90,332 |
| 2019-08-09 | Grant / award (derivative) | 14,113 | $0.00 | 30,933 |
| 2019-08-09 | Tax withholding | 1,394 | $27.90 | 81,402 |
| 2019-08-09 | Option exercise (derivative) | 2,445 | $0.00 | 16,820 |
| 2019-08-09 | Tax withholding | 1,198 | $27.90 | 82,649 |
| 2019-08-09 | Option exercise | 2,445 | — | 83,847 |
| 2019-08-08 | Option exercise (derivative) | 1,370 | $0.00 | 19,265 |
| 2019-08-08 | Option exercise | 1,370 | — | 83,467 |
| 2019-08-08 | Tax withholding | 671 | $28.64 | 82,796 |
| 2019-07-31 | Option exercise (derivative) | 14,225 | — | 0 |
| 2019-07-31 | Tax withholding | 6,632 | $29.76 | 82,097 |
| 2019-07-31 | Option exercise | 14,225 | — | 88,729 |
| 2019-07-31 | Grant / award (derivative) | 29,944 | — | 29,944 |
| 2019-07-31 | Option exercise (derivative) | 1,319 | — | 28,625 |
| 2019-07-31 | Option exercise | 1,319 | — | 83,416 |
| 2019-07-31 | Tax withholding | 1,319 | $29.76 | 82,097 |
| 2018-10-04 | Grant / award (derivative) | 4,003 | $0.00 | 20,635 |
| 2018-09-25 | Tax withholding | 4,429 | $34.73 | 74,504 |
| 2018-09-25 | Grant / award | 9,043 | — | 78,933 |
| 2018-09-23 | Option exercise (derivative) | 899 | $0.00 | 0 |
| 2018-09-23 | Tax withholding | 441 | $33.32 | 69,890 |
| 2018-09-23 | Option exercise | 899 | — | 70,331 |
| 2018-08-09 | Option exercise (derivative) | 2,445 | $0.00 | 16,632 |
| 2018-08-09 | Tax withholding | 1,198 | $34.55 | 69,432 |
| 2018-08-09 | Option exercise | 2,445 | — | 70,630 |
| 2018-08-09 | Tax withholding | 1,394 | $34.55 | 68,185 |
| 2018-08-08 | Grant / award (derivative) | 6,851 | $0.00 | 19,077 |
| 2018-07-31 | Option exercise (derivative) | 23,297 | — | 0 |
| 2018-07-31 | Option exercise | 23,297 | — | 80,441 |
| 2018-07-31 | Tax withholding | 10,862 | $33.60 | 69,579 |
| 2018-07-31 | Grant / award (derivative) | 14,881 | — | 14,881 |
| 2018-07-31 | Option exercise (derivative) | 656 | — | 14,225 |
| 2018-07-31 | Tax withholding | 656 | $33.60 | 69,579 |
| 2018-07-31 | Option exercise | 656 | — | 70,235 |
| 2017-12-13 | Open-market sale | 14,524 | $21.93 | 57,144 |
| 2017-12-12 | Open-market sale | 15,476 | $20.92 | 71,668 |
| 2017-10-02 | Option exercise (derivative) | 995 | $0.00 | 899 |
| 2017-10-02 | Tax withholding | 514 | $19.47 | 87,144 |
| 2017-10-02 | Option exercise | 995 | — | 87,658 |
| 2017-09-26 | Tax withholding | 3,230 | $20.35 | 86,663 |
| 2017-09-26 | Grant / award | 6,263 | — | 89,893 |
| 2017-09-23 | Option exercise (derivative) | 898 | $0.00 | 1,894 |
| 2017-09-23 | Option exercise | 898 | — | 84,094 |
| 2017-09-23 | Tax withholding | 464 | $20.59 | 83,630 |
| 2017-08-09 | Tax withholding | 1,468 | $18.24 | 83,196 |
| 2017-08-09 | Grant / award (derivative) | 12,226 | $0.00 | 12,226 |
| 2017-07-31 | Option exercise (derivative) | 869 | — | 23,297 |
| 2017-07-31 | Grant / award (derivative) | 24,166 | — | 24,166 |
| 2017-07-31 | Tax withholding | 869 | $18.00 | 84,664 |
| 2017-07-31 | Option exercise | 869 | — | 85,533 |
| 2016-10-05 | Option exercise (derivative) | 899 | $0.00 | 3,787 |
| 2016-10-05 | Option exercise (derivative) | 995 | $0.00 | 2,792 |
| 2016-10-05 | Grant / award | 6,185 | — | 85,758 |
| 2016-10-05 | Tax withholding | 368 | $12.63 | 84,664 |
| 2016-10-05 | Option exercise | 995 | — | 85,032 |
| 2016-10-05 | Tax withholding | 333 | $12.63 | 84,037 |
| 2016-10-05 | Option exercise | 899 | — | 84,370 |
| 2016-10-05 | Tax withholding | 2,287 | $12.63 | 83,471 |
| 2016-08-09 | Grant / award | 14,231 | $0.00 | 79,573 |
| 2015-10-02 | Option exercise (derivative) | 995 | $0.00 | 4,686 |
| 2015-10-02 | Tax withholding | 368 | $21.51 | 65,342 |
| 2015-10-02 | Option exercise | 995 | — | 65,710 |
| 2015-09-23 | Option exercise (derivative) | 898 | $0.00 | 5,681 |
| 2015-09-23 | Option exercise | 898 | — | 65,047 |
| 2015-09-23 | Tax withholding | 332 | $26.11 | 64,715 |
| 2015-08-04 | Grant / award (derivative) | 6,000 | $0.00 | 245,750 |
| 2015-08-04 | Grant / award (derivative) | 6,000 | $0.00 | 239,750 |
| 2015-08-04 | Grant / award (derivative) | 6,000 | $0.00 | 233,750 |
| 2015-08-04 | Grant / award (derivative) | 6,000 | $0.00 | 227,750 |
| 2015-08-04 | Grant / award (derivative) | 6,000 | $0.00 | 221,750 |
| 2014-10-02 | Option exercise (derivative) | 995 | $0.00 | 6,579 |
| 2014-10-02 | Option exercise | 995 | — | 64,874 |
| 2014-09-23 | Option exercise (derivative) | 898 | $0.00 | 7,574 |
| 2014-09-23 | Option exercise | 898 | — | 63,879 |
| 2014-08-04 | Grant / award (derivative) | 6,000 | $0.00 | 209,750 |
| 2014-08-04 | Grant / award (derivative) | 6,000 | $0.00 | 215,750 |
| 2014-08-04 | Grant / award (derivative) | 6,000 | $0.00 | 191,750 |
| 2014-08-04 | Grant / award (derivative) | 6,000 | $0.00 | 197,750 |
| 2014-08-04 | Grant / award (derivative) | 6,000 | $0.00 | 203,750 |
| 2014-08-01 | Option exercise (derivative) | 25,000 | $0.00 | 185,750 |
| 2014-08-01 | Option exercise (derivative) | 8,313 | $0.00 | 210,750 |
| 2014-08-01 | Option exercise | 25,000 | $26.90 | 86,184 |
| 2014-08-01 | Tax withholding | 23,203 | $33.71 | 62,981 |
| 2014-08-01 | Option exercise | 8,313 | $13.19 | 61,184 |
| 2014-06-04 | Option exercise (derivative) | 34,760 | $0.00 | 219,063 |
| 2014-06-02 | Tax withholding | 31,955 | $32.21 | 52,871 |
| 2014-06-02 | Option exercise | 34,760 | $29.61 | 84,826 |
| 2013-12-19 | Option exercise (derivative) | 150 | $0.00 | 253,823 |
| 2013-12-19 | Option exercise | 150 | $29.61 | 50,066 |
| 2013-10-16 | Grant / award | 5,072 | $27.40 | 49,916 |
| 2013-10-02 | Option exercise (derivative) | 994 | $0.00 | 8,472 |
| 2013-10-02 | Option exercise | 994 | — | 44,844 |
| 2013-08-01 | Grant / award (derivative) | 5,400 | $0.00 | 267,373 |
| 2013-08-01 | Grant / award (derivative) | 5,400 | $0.00 | 283,573 |
| 2013-08-01 | Grant / award (derivative) | 5,400 | $0.00 | 272,773 |
| 2013-08-01 | Grant / award (derivative) | 5,400 | $0.00 | 278,173 |
| 2013-08-01 | Grant / award (derivative) | 5,400 | $0.00 | 288,973 |
| 2013-06-05 | Grant / award (derivative) | 5,000 | $0.00 | 246,973 |
| 2013-06-05 | Grant / award (derivative) | 5,000 | $0.00 | 256,973 |
| 2013-06-05 | Grant / award (derivative) | 5,000 | $0.00 | 251,973 |
| 2013-06-05 | Grant / award (derivative) | 5,000 | $0.00 | 261,973 |
| 2013-06-05 | Grant / award (derivative) | 5,000 | $0.00 | 241,973 |
| 2013-06-05 | Grant / award (derivative) | 4,492 | $0.00 | 9,466 |
| 2013-05-14 | Option exercise (derivative) | 1,455 | $0.00 | 236,973 |
| 2013-05-14 | Option exercise | 1,455 | $11.67 | 43,850 |
| 2012-06-06 | Grant / award (derivative) | 4,974 | $0.00 | 4,974 |
| 2012-06-06 | Grant / award (derivative) | 4,000 | $0.00 | 267,928 |
| 2012-06-06 | Grant / award (derivative) | 4,000 | $0.00 | 271,928 |
| 2012-06-06 | Grant / award (derivative) | 4,000 | $0.00 | 275,928 |
| 2012-06-06 | Grant / award (derivative) | 4,000 | $0.00 | 279,928 |
| 2012-06-06 | Grant / award (derivative) | 4,000 | $0.00 | 283,928 |
| 2012-03-09 | Option exercise (derivative) | 45 | $0.00 | 263,928 |
| 2012-03-09 | Option exercise | 45 | $29.61 | 42,395 |
| 2012-02-17 | Option exercise (derivative) | 45 | $0.00 | 263,973 |
| 2012-02-17 | Option exercise | 45 | $29.61 | 42,350 |
| 2011-10-21 | Open-market buy | 3,200 | $32.07 | 42,305 |
| 2011-10-07 | Option exercise (derivative) | 3,685 | $0.00 | 264,018 |
| 2011-10-07 | Option exercise | 3,685 | $13.19 | 39,105 |
| 2011-10-03 | Grant / award (derivative) | 5,000 | $0.00 | 267,703 |
| 2011-10-03 | Grant / award (derivative) | 5,000 | $0.00 | 252,703 |
| 2011-10-03 | Grant / award (derivative) | 5,000 | $0.00 | 257,703 |
| 2011-10-03 | Grant / award (derivative) | 5,000 | $0.00 | 247,703 |
| 2011-10-03 | Grant / award (derivative) | 5,000 | $0.00 | 262,703 |
| 2011-06-14 | Option exercise (derivative) | 90 | $0.00 | 253,203 |
| 2011-06-14 | Option exercise | 90 | $13.19 | 32,495 |
| 2011-06-14 | Open-market buy | 725 | $23.91 | 35,420 |
| 2011-06-14 | Open-market buy | 2,200 | $23.91 | 34,695 |
| 2011-06-02 | Grant / award (derivative) | 9,000 | $0.00 | 253,293 |
| 2011-06-02 | Grant / award (derivative) | 9,000 | $0.00 | 217,293 |
| 2011-06-02 | Grant / award (derivative) | 9,000 | $0.00 | 226,293 |
| 2011-06-02 | Grant / award (derivative) | 9,000 | $0.00 | 244,293 |
| 2011-06-02 | Grant / award (derivative) | 9,000 | $0.00 | 235,293 |
| 2011-04-01 | Open-market buy | 1,100 | $27.42 | 32,405 |
| 2011-03-30 | Option exercise (derivative) | 5,000 | $0.00 | 208,293 |
| 2011-03-30 | Option exercise | 5,000 | $13.19 | 31,305 |
| 2010-10-08 | Open-market buy | 150 | $29.38 | 26,305 |
| 2010-10-06 | Option exercise (derivative) | 7,545 | $0.00 | 213,293 |
| 2010-10-06 | Option exercise | 7,545 | $11.67 | 25,430 |
| 2010-10-06 | Open-market buy | 725 | $28.15 | 26,155 |
| 2010-07-30 | Disposition to issuer (derivative) | 25,000 | $0.00 | 195,838 |
| 2010-07-30 | Grant / award (derivative) | 25,000 | $0.00 | 220,838 |
| 2010-06-02 | Grant / award (derivative) | 8,750 | $0.00 | 185,838 |
| 2010-06-02 | Grant / award (derivative) | 8,750 | $0.00 | 203,338 |
| 2010-06-02 | Grant / award (derivative) | 8,750 | $0.00 | 194,588 |
| 2010-06-02 | Grant / award (derivative) | 8,750 | $0.00 | 220,838 |
| 2010-06-02 | Grant / award (derivative) | 8,750 | $0.00 | 212,088 |
| 2010-04-29 | Grant / award (derivative) | 10,500 | $0.00 | 177,088 |
| 2010-04-29 | Grant / award (derivative) | 10,500 | $0.00 | 166,588 |
| 2010-04-29 | Disposition to issuer (derivative) | 21,000 | $0.00 | 156,088 |
| 2009-06-02 | Grant / award (derivative) | 17,500 | $0.00 | 177,088 |
| 2009-06-02 | Grant / award (derivative) | 8,750 | $0.00 | 150,838 |
| 2009-06-02 | Grant / award (derivative) | 8,750 | $0.00 | 159,588 |
| 2009-03-19 | Open-market buy | 1,440 | $23.07 | 17,885 |
| 2009-03-13 | Option exercise (derivative) | 3,045 | $11.67 | 142,088 |
| 2009-03-13 | Option exercise | 3,045 | $11.67 | 16,445 |
| 2008-08-14 | Option exercise (derivative) | 5,597 | $5.73 | 145,133 |
| 2008-08-14 | Option exercise | 5,597 | $5.73 | 13,400 |
| 2008-08-05 | Grant / award (derivative) | 8,750 | $46.69 | 124,480 |
| 2008-08-05 | Grant / award (derivative) | 8,750 | $46.69 | 133,230 |
| 2008-08-05 | Grant / award (derivative) | 17,500 | $46.69 | 150,730 |
| 2007-12-18 | Option exercise (derivative) | 2,600 | $5.73 | 115,730 |
| 2007-12-18 | Option exercise | 2,600 | $5.73 | 7,803 |
| 2007-10-03 | Option exercise (derivative) | 1,000 | $5.73 | 118,330 |
| 2007-10-03 | Option exercise | 1,000 | $5.73 | 5,203 |
| 2007-08-07 | Grant / award (derivative) | 17,500 | $42.47 | 119,330 |
| 2007-08-07 | Grant / award (derivative) | 8,750 | $42.47 | 93,080 |
| 2007-08-07 | Grant / award (derivative) | 8,750 | $42.47 | 101,830 |
| 2007-06-13 | Option exercise (derivative) | 2,910 | $11.67 | 93,117 |
| 2007-06-13 | Option exercise (derivative) | 8,787 | $13.19 | 84,330 |
| 2007-06-13 | Option exercise (derivative) | 13,303 | $5.73 | 96,027 |
| 2007-06-13 | Option exercise | 8,787 | $13.19 | 29,203 |
| 2007-06-13 | Option exercise | 2,910 | $11.67 | 20,416 |
| 2007-06-13 | Option exercise | 13,303 | $5.73 | 17,506 |
| 2007-06-13 | Open-market sale | 25,000 | $41.75 | 4,203 |
| 2006-08-01 | Grant / award (derivative) | 12,500 | $26.90 | 109,330 |
| 2006-08-01 | Grant / award (derivative) | 6,250 | $26.90 | 96,830 |
| 2006-08-01 | Grant / award (derivative) | 6,250 | $26.90 | 90,580 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.