SEC CIK 1008159
KU TZU SHENG
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| TAITview stock → | 688,265 | 2023-10-09 |
Position History — TAIT
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — TAIT
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2024-06-25 | Grant / award (derivative) | 5,000 | $0.00 | 5,000 |
| 2023-10-09 | Option exercise (derivative) | 1,667 | $0.00 | 0 |
| 2023-10-09 | Option exercise | 1,667 | $2.43 | 688,265 |
| 2023-08-10 | Option exercise (derivative) | 3,333 | $0.00 | 1,667 |
| 2023-08-10 | Option exercise (derivative) | 15,000 | $0.00 | 0 |
| 2023-08-10 | Option exercise | 3,333 | $2.43 | 686,598 |
| 2023-08-10 | Option exercise | 5,000 | $2.95 | 683,265 |
| 2023-08-10 | Option exercise | 15,000 | $1.78 | 678,265 |
| 2022-05-26 | Grant / award (derivative) | 5,000 | $0.00 | 5,000 |
| 2020-06-19 | Option exercise (derivative) | 5,000 | $0.00 | 0 |
| 2020-06-19 | Option exercise | 5,000 | $1.09 | 663,265 |
| 2019-09-03 | Grant / award (derivative) | 5,000 | $0.00 | 5,000 |
| 2019-05-29 | Option exercise (derivative) | 5,000 | $0.00 | 0 |
| 2019-05-29 | Option exercise | 5,000 | $1.05 | 658,265 |
| 2015-12-31 | Open-market buy | 3,000 | $1.00 | 414,164 |
| 2015-12-09 | Open-market buy | 13,600 | $0.97 | 411,164 |
| 2015-12-09 | Open-market buy | 3,400 | $0.96 | 397,564 |
| 2015-11-05 | Open-market buy | 1,000 | $1.00 | 394,164 |
| 2015-11-04 | Open-market buy | 4,000 | $1.00 | 393,164 |
| 2015-11-03 | Open-market buy | 300 | $0.99 | 389,164 |
| 2015-10-30 | Open-market buy | 200 | $0.99 | 388,864 |
| 2015-10-27 | Open-market buy | 2,000 | $0.97 | 388,664 |
| 2015-10-23 | Open-market buy | 1,200 | $0.96 | 386,664 |
| 2015-10-09 | Open-market buy | 2,000 | $0.98 | 385,464 |
| 2015-09-02 | Open-market buy | 6,650 | $0.99 | 383,464 |
| 2015-09-01 | Open-market buy | 5,030 | $1.00 | 376,814 |
| 2015-08-31 | Open-market buy | 14,725 | $1.00 | 371,784 |
| 2015-08-28 | Open-market buy | 4,600 | $0.95 | 357,059 |
| 2015-08-07 | Open-market buy | 4,000 | $0.98 | 352,459 |
| 2015-08-06 | Open-market buy | 2,000 | $0.98 | 348,459 |
| 2015-08-03 | Open-market buy | 1,900 | $0.99 | 346,459 |
| 2015-07-31 | Open-market buy | 100 | $0.99 | 344,559 |
| 2015-07-20 | Open-market buy | 3,000 | $0.99 | 344,459 |
| 2015-05-28 | Open-market buy | 500 | $1.00 | 341,459 |
| 2015-05-28 | Open-market buy | 2,000 | $0.98 | 340,959 |
| 2015-05-28 | Open-market buy | 2,000 | $0.97 | 338,959 |
| 2015-05-20 | Open-market buy | 2,000 | $0.99 | 336,959 |
| 2015-05-19 | Open-market buy | 2,000 | $0.99 | 334,959 |
| 2015-05-04 | Open-market buy | 845 | $1.00 | 332,959 |
| 2015-05-01 | Open-market buy | 1,155 | $1.00 | 332,114 |
| 2015-04-24 | Open-market buy | 500 | $1.00 | 330,959 |
| 2015-04-24 | Open-market buy | 801 | $0.99 | 330,459 |
| 2015-04-21 | Open-market buy | 755 | $1.00 | 329,658 |
| 2015-04-21 | Open-market buy | 3,000 | $0.99 | 326,403 |
| 2015-04-21 | Open-market buy | 500 | $1.00 | 328,903 |
| 2015-04-21 | Open-market buy | 2,000 | $1.00 | 328,403 |
| 2015-04-06 | Open-market buy | 2,000 | $0.97 | 323,403 |
| 2015-03-25 | Open-market buy | 2,000 | $1.00 | 321,403 |
| 2015-03-25 | Open-market buy | 683 | $1.00 | 315,086 |
| 2015-03-25 | Open-market buy | 2,317 | $1.00 | 317,403 |
| 2015-03-25 | Open-market buy | 2,000 | $1.00 | 319,403 |
| 2015-03-25 | Open-market buy | 1,583 | $1.00 | 314,403 |
| 2014-06-30 | Open-market buy | 256 | $1.00 | 312,720 |
| 2014-06-27 | Open-market buy | 4,500 | $1.00 | 311,720 |
| 2014-06-27 | Open-market buy | 744 | $0.99 | 312,464 |
| 2014-06-23 | Open-market buy | 200 | $0.96 | 303,220 |
| 2014-06-23 | Open-market buy | 2,500 | $0.96 | 303,020 |
| 2014-06-23 | Open-market buy | 4,000 | $0.97 | 307,220 |
| 2014-06-20 | Open-market buy | 1,000 | $0.99 | 300,520 |
| 2014-06-17 | Open-market buy | 1,000 | $0.98 | 299,520 |
| 2014-06-16 | Open-market buy | 2,500 | $0.95 | 298,520 |
| 2014-05-30 | Open-market buy | 1,000 | $0.99 | 296,020 |
| 2014-05-12 | Open-market buy | 600 | $1.00 | 295,020 |
| 2014-04-14 | Open-market buy | 3,000 | $0.97 | 294,420 |
| 2014-04-09 | Open-market buy | 1,500 | $0.99 | 289,420 |
| 2014-04-09 | Open-market buy | 2,000 | $0.98 | 291,420 |
| 2014-04-08 | Open-market buy | 2,000 | $1.00 | 287,920 |
| 2014-04-07 | Open-market buy | 400 | $1.00 | 285,320 |
| 2014-04-07 | Open-market buy | 2,000 | $0.99 | 284,920 |
| 2014-04-07 | Open-market buy | 600 | $1.00 | 285,920 |
| 2013-09-03 | Open-market buy | 347 | $1.00 | 282,920 |
| 2013-08-20 | Open-market buy | 253 | $1.00 | 282,573 |
| 2013-07-09 | Open-market buy | 400 | $1.00 | 282,320 |
| 2013-07-08 | Open-market buy | 1,100 | $1.02 | 281,920 |
| 2013-07-08 | Open-market buy | 2,000 | $0.98 | 274,820 |
| 2013-07-08 | Open-market buy | 6,000 | $1.00 | 280,820 |
| 2013-06-24 | Open-market buy | 1,000 | $0.96 | 272,820 |
| 2013-06-21 | Open-market buy | 1,500 | $0.96 | 271,820 |
| 2013-06-18 | Open-market buy | 500 | $0.93 | 270,320 |
| 2013-06-10 | Open-market buy | 1,000 | $0.99 | 269,820 |
| 2013-04-04 | Open-market buy | 2,000 | $0.99 | 268,820 |
| 2013-03-28 | Open-market buy | 969 | $1.00 | 266,820 |
| 2013-03-27 | Open-market buy | 63 | $1.00 | 265,851 |
| 2013-03-26 | Open-market buy | 7 | $1.00 | 265,788 |
| 2013-03-22 | Open-market buy | 323 | $1.00 | 265,781 |
| 2013-03-07 | Open-market buy | 102 | $1.00 | 265,465 |
| 2013-03-06 | Open-market buy | 536 | $1.00 | 265,356 |
| 2013-02-22 | Open-market buy | 487 | $1.01 | 264,820 |
| 2013-02-20 | Open-market buy | 1,513 | $1.01 | 264,333 |
| 2013-02-20 | Open-market buy | 244 | $1.02 | 262,820 |
| 2013-02-06 | Open-market buy | 11 | $1.02 | 262,567 |
| 2013-02-05 | Open-market buy | 745 | $1.02 | 262,565 |
| 2013-01-31 | Open-market buy | 1,000 | $1.02 | 261,820 |
| 2012-12-28 | Open-market buy | 2,572 | $0.99 | 260,820 |
| 2012-12-27 | Open-market buy | 1,428 | $1.00 | 258,248 |
| 2012-12-26 | Open-market buy | 2,000 | $1.00 | 256,820 |
| 2012-12-20 | Open-market buy | 50 | $0.98 | 254,820 |
| 2012-12-06 | Open-market buy | 122 | $1.00 | 254,770 |
| 2012-12-04 | Open-market buy | 14 | $1.00 | 254,648 |
| 2012-11-28 | Open-market buy | 200 | $1.00 | 254,634 |
| 2012-11-26 | Open-market buy | 1,664 | $1.00 | 254,434 |
| 2012-11-16 | Open-market buy | 2,976 | $1.01 | 252,770 |
| 2012-11-15 | Open-market buy | 1,543 | $1.02 | 249,794 |
| 2012-11-14 | Open-market buy | 3,925 | $1.02 | 247,770 |
| 2012-11-14 | Open-market buy | 420 | $1.01 | 248,190 |
| 2012-11-14 | Open-market buy | 61 | $1.01 | 248,251 |
| 2012-11-13 | Open-market buy | 1,075 | $1.02 | 243,845 |
| 2012-11-09 | Open-market buy | 1,000 | $1.02 | 242,770 |
| 2012-11-06 | Open-market buy | 1,600 | $1.02 | 239,970 |
| 2012-11-06 | Open-market buy | 1,800 | $1.01 | 241,770 |
| 2012-11-05 | Open-market buy | 285 | $0.99 | 237,970 |
| 2012-11-05 | Open-market buy | 400 | $1.02 | 238,370 |
| 2012-11-05 | Open-market buy | 2,000 | $1.00 | 237,685 |
| 2012-10-23 | Open-market buy | 800 | $0.97 | 235,685 |
| 2012-10-17 | Open-market buy | 500 | $0.95 | 234,885 |
| 2012-10-12 | Open-market buy | 105 | $0.95 | 234,385 |
| 2012-10-01 | Open-market buy | 9 | $0.93 | 234,280 |
| 2012-09-28 | Open-market buy | 150 | $0.91 | 234,271 |
| 2012-09-24 | Open-market buy | 2,000 | $0.91 | 234,121 |
| 2012-09-21 | Open-market buy | 2,000 | $0.92 | 232,121 |
| 2012-08-17 | Open-market buy | 2,000 | $0.92 | 230,121 |
| 2012-08-16 | Open-market buy | 2,000 | $0.92 | 228,121 |
| 2012-08-15 | Open-market buy | 899 | $0.93 | 226,121 |
| 2012-07-30 | Open-market buy | 101 | $0.93 | 225,222 |
| 2012-07-26 | Open-market buy | 6,000 | $0.93 | 225,121 |
| 2012-07-25 | Open-market buy | 1,000 | $0.96 | 219,121 |
| 2012-07-25 | Open-market buy | 2,000 | $0.95 | 218,121 |
| 2012-07-23 | Open-market buy | 1,000 | $0.99 | 216,121 |
| 2012-07-23 | Open-market buy | 504 | $0.97 | 215,121 |
| 2012-06-14 | Open-market buy | 900 | $0.97 | 210,121 |
| 2012-06-13 | Open-market buy | 1,100 | $0.97 | 209,221 |
| 2012-06-01 | Open-market buy | 3,654 | $0.99 | 208,121 |
| 2012-05-30 | Open-market buy | 356 | $0.99 | 204,467 |
| 2012-05-25 | Open-market buy | 2,900 | $1.00 | 204,121 |
| 2012-05-17 | Open-market buy | 1,100 | $1.00 | 201,221 |
| 2012-05-08 | Open-market buy | 608 | $1.00 | 200,121 |
| 2012-05-04 | Open-market buy | 1,392 | $1.00 | 199,513 |
| 2012-05-02 | Open-market buy | 2,000 | $1.01 | 198,121 |
| 2012-04-24 | Open-market buy | 2,000 | $1.00 | 193,121 |
| 2012-04-24 | Open-market buy | 2,000 | $1.03 | 195,121 |
| 2012-04-24 | Open-market buy | 1,000 | $1.05 | 196,121 |
| 2012-04-16 | Open-market buy | 2,000 | $0.96 | 191,121 |
| 2012-04-11 | Open-market buy | 2,000 | $0.97 | 189,121 |
| 2012-04-02 | Open-market buy | 2,000 | $1.00 | 187,121 |
| 2012-02-23 | Open-market buy | 506 | $1.00 | 185,121 |
| 2012-02-22 | Open-market buy | 625 | $1.00 | 184,615 |
| 2012-02-21 | Open-market buy | 869 | $1.00 | 183,990 |
| 2012-02-06 | Open-market buy | 1,700 | $1.01 | 183,121 |
| 2012-02-02 | Open-market buy | 300 | $1.01 | 181,421 |
| 2012-01-11 | Open-market buy | 1,195 | $1.01 | 181,121 |
| 2012-01-11 | Open-market buy | 2,000 | $1.04 | 175,926 |
| 2012-01-11 | Open-market buy | 3,500 | $1.02 | 179,926 |
| 2012-01-10 | Open-market buy | 500 | $1.03 | 176,426 |
| 2012-01-03 | Open-market buy | 1,265 | $1.05 | 173,926 |
| 2011-12-29 | Open-market buy | 1,835 | $1.05 | 172,661 |
| 2011-12-27 | Open-market buy | 900 | $1.06 | 170,826 |
| 2011-12-22 | Open-market buy | 1,701 | $1.02 | 167,926 |
| 2011-12-22 | Open-market buy | 2,000 | $1.03 | 169,926 |
| 2011-12-21 | Open-market buy | 299 | $1.02 | 166,225 |
| 2011-12-19 | Open-market buy | 100 | $1.01 | 165,926 |
| 2011-12-16 | Open-market buy | 5,000 | $1.02 | 165,826 |
| 2011-12-16 | Open-market buy | 705 | $1.01 | 160,826 |
| 2011-12-15 | Open-market buy | 2,800 | $1.00 | 160,121 |
| 2011-12-14 | Open-market buy | 2,249 | $1.01 | 156,121 |
| 2011-12-14 | Open-market buy | 5,751 | $1.02 | 153,872 |
| 2011-12-14 | Open-market buy | 1,200 | $1.00 | 157,321 |
| 2011-12-13 | Open-market buy | 2,000 | $1.02 | 148,121 |
| 2011-12-13 | Open-market buy | 1,000 | $0.99 | 146,121 |
| 2011-12-12 | Open-market buy | 2,230 | $0.99 | 145,121 |
| 2011-12-12 | Open-market buy | 20 | $0.95 | 142,891 |
| 2011-12-09 | Open-market buy | 1,300 | $0.91 | 140,573 |
| 2011-12-09 | Open-market buy | 2,298 | $0.93 | 142,871 |
| 2011-12-06 | Open-market buy | 1,000 | $0.91 | 139,273 |
| 2011-12-05 | Open-market buy | 2,000 | $0.88 | 138,273 |
| 2011-12-05 | Open-market buy | 2,000 | $0.87 | 134,273 |
| 2011-12-02 | Open-market buy | 2,000 | $0.88 | 132,273 |
| 2011-12-01 | Open-market buy | 3,900 | $0.89 | 130,273 |
| 2011-11-22 | Open-market buy | 2,500 | $0.89 | 117,661 |
| 2011-11-15 | Open-market buy | 2,500 | $0.90 | 115,161 |
| 2011-11-14 | Open-market buy | 3,500 | $0.92 | 112,661 |
| 2010-07-26 | Open-market buy | 9,800 | $1.00 | 109,161 |
| 2009-09-09 | Open-market buy | 1,300 | $0.99 | 95,561 |
| 2009-09-09 | Open-market buy | 200 | $0.99 | 94,261 |
| 2009-09-09 | Open-market buy | 2,000 | $1.01 | 99,361 |
| 2009-09-09 | Open-market buy | 800 | $1.00 | 97,361 |
| 2009-09-09 | Open-market buy | 1,000 | $0.99 | 96,561 |
| 2009-09-08 | Open-market buy | 1,000 | $0.97 | 94,061 |
| 2009-09-08 | Open-market buy | 1,000 | $0.94 | 91,061 |
| 2009-09-08 | Open-market buy | 2,000 | $0.95 | 93,061 |
| 2009-09-04 | Open-market buy | 200 | $0.93 | 89,061 |
| 2009-09-04 | Open-market buy | 1,000 | $0.94 | 90,061 |
| 2009-09-02 | Open-market buy | 1,000 | $0.93 | 87,861 |
| 2009-09-02 | Open-market buy | 1,000 | $0.94 | 88,861 |
| 2009-08-28 | Open-market buy | 500 | $0.92 | 85,861 |
| 2009-08-28 | Open-market buy | 500 | $0.90 | 85,361 |
| 2009-08-27 | Open-market buy | 800 | $0.89 | 84,861 |
| 2009-08-26 | Open-market buy | 2,000 | $0.89 | 84,061 |
| 2009-08-18 | Open-market buy | 2,900 | $0.82 | 81,386 |
| 2009-08-18 | Open-market buy | 675 | $0.81 | 82,061 |
| 2009-08-18 | Open-market buy | 100 | $0.82 | 78,486 |
| 2009-06-02 | Open-market buy | 1,000 | $0.85 | 78,836 |
| 2009-05-04 | Open-market buy | 900 | $0.84 | 77,386 |
| 2009-05-04 | Open-market buy | 1,000 | $0.88 | 75,486 |
| 2009-05-04 | Open-market buy | 1,000 | $0.86 | 76,486 |
| 2009-04-09 | Open-market buy | 100 | $0.84 | 74,486 |
| 2009-04-02 | Open-market buy | 1,000 | $0.84 | 74,386 |
| 2009-03-09 | Open-market buy | 1,000 | $0.90 | 73,386 |
| 2009-03-02 | Open-market buy | 1,000 | $0.97 | 72,386 |
| 2009-03-02 | Open-market buy | 911 | $0.98 | 71,386 |
| 2009-02-27 | Open-market buy | 300 | $0.99 | 70,201 |
| 2009-02-27 | Open-market buy | 274 | $0.98 | 70,475 |
| 2009-02-24 | Open-market buy | 200 | $0.99 | 69,901 |
| 2009-02-20 | Open-market buy | 500 | $0.99 | 69,701 |
| 2009-02-20 | Open-market buy | 1,000 | $1.00 | 69,201 |
| 2009-02-20 | Open-market buy | 1,000 | $1.01 | 68,201 |
| 2009-02-19 | Open-market buy | 2,000 | $1.00 | 67,201 |
| 2009-02-19 | Open-market buy | 1,000 | $1.01 | 65,201 |
| 2009-02-18 | Open-market buy | 1,000 | $1.01 | 61,956 |
| 2009-02-18 | Open-market buy | 800 | $0.99 | 62,756 |
| 2009-02-18 | Open-market buy | 1,000 | $1.03 | 59,956 |
| 2009-02-18 | Open-market buy | 645 | $0.98 | 64,201 |
| 2009-02-18 | Open-market buy | 800 | $1.00 | 63,556 |
| 2009-02-18 | Open-market buy | 1,000 | $1.02 | 60,956 |
| 2009-02-17 | Open-market buy | 1,000 | $1.02 | 58,956 |
| 2009-02-12 | Open-market buy | 300 | $1.01 | 54,056 |
| 2009-02-12 | Open-market buy | 1,200 | $1.00 | 55,256 |
| 2009-02-12 | Open-market buy | 2,000 | $1.01 | 57,256 |
| 2009-02-12 | Open-market buy | 500 | $1.04 | 57,756 |
| 2009-02-12 | Open-market buy | 200 | $1.04 | 57,956 |
| 2009-02-11 | Open-market buy | 1,000 | $1.02 | 53,756 |
| 2009-02-09 | Open-market buy | 1,000 | $1.01 | 51,756 |
| 2009-02-09 | Open-market buy | 1,000 | $1.02 | 52,756 |
| 2009-02-06 | Open-market buy | 1,000 | $1.00 | 50,756 |
| 2009-02-05 | Open-market buy | 6,170 | $0.98 | 49,556 |
| 2009-02-05 | Open-market buy | 200 | $0.99 | 49,756 |
| 2009-02-05 | Open-market buy | 1,000 | $0.97 | 43,386 |
| 2009-01-29 | Open-market buy | 683 | $0.94 | 42,386 |
| 2009-01-29 | Open-market buy | 100 | $0.93 | 41,703 |
| 2009-01-26 | Open-market buy | 1,000 | $0.94 | 41,603 |
| 2009-01-23 | Open-market buy | 50 | $0.92 | 40,603 |
| 2009-01-16 | Open-market buy | 66 | $0.88 | 40,553 |
| 2009-01-14 | Open-market buy | 200 | $0.87 | 40,487 |
| 2009-01-12 | Open-market buy | 1,000 | $0.86 | 40,287 |
| 2009-01-09 | Open-market buy | 250 | $0.86 | 39,287 |
| 2009-01-09 | Open-market buy | 500 | $0.87 | 39,037 |
| 2009-01-08 | Open-market buy | 500 | $0.87 | 38,537 |
| 2009-01-08 | Open-market buy | 965 | $0.86 | 38,037 |
| 2009-01-06 | Open-market buy | 500 | $0.83 | 37,072 |
| 2009-01-05 | Open-market buy | 1,000 | $0.84 | 35,572 |
| 2009-01-05 | Open-market buy | 500 | $0.82 | 36,072 |
| 2009-01-05 | Open-market buy | 400 | $0.85 | 36,472 |
| 2009-01-05 | Open-market buy | 100 | $0.86 | 36,572 |
| 2009-01-02 | Open-market buy | 2,000 | $0.84 | 34,572 |
| 2009-01-02 | Open-market buy | 1,000 | $0.82 | 32,572 |
| 2008-12-31 | Open-market buy | 700 | $0.85 | 26,272 |
| 2008-12-31 | Open-market buy | 100 | $0.82 | 26,672 |
| 2008-12-31 | Open-market buy | 300 | $0.84 | 26,572 |
| 2008-12-31 | Open-market buy | 5,000 | $0.84 | 31,672 |
| 2008-12-31 | Open-market buy | 1,000 | $0.78 | 25,572 |
| 2008-12-31 | Open-market buy | 1,000 | $0.80 | 24,572 |
| 2008-12-30 | Open-market buy | 1,000 | $0.78 | 22,916 |
| 2008-12-30 | Open-market buy | 156 | $0.75 | 23,072 |
| 2008-12-30 | Open-market buy | 500 | $0.85 | 23,572 |
| 2008-12-30 | Open-market buy | 1,000 | $0.80 | 21,916 |
| 2008-12-30 | Open-market buy | 1,000 | $0.83 | 20,916 |
| 2008-12-29 | Open-market buy | 400 | $0.75 | 19,916 |
| 2008-12-22 | Open-market buy | 1,000 | $0.80 | 19,516 |
| 2008-12-19 | Open-market buy | 950 | $0.83 | 18,234 |
| 2008-12-19 | Open-market buy | 282 | $0.75 | 18,516 |
| 2008-12-17 | Open-market buy | 457 | $0.83 | 17,284 |
| 2008-12-17 | Open-market buy | 2,000 | $0.75 | 16,284 |
| 2008-12-17 | Open-market buy | 443 | $0.75 | 16,827 |
| 2008-12-17 | Open-market buy | 100 | $0.84 | 16,384 |
| 2008-03-20 | Grant / award (derivative) | 5,000 | $0.00 | 42,500 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.