Insider · CIK 0001188184
David C Chang
Files at: AXTI, SPECTRUM MANAGEMENT HOLDING COMPANY, LLC. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 15, 2026 SForm 4 → | Jun 17, 11:52 am EDT | AXT INCAXTI | 8,333 | $111.17 | $926,392 | 65,165 | −11.3% | |
| Jun 4, 2026 AForm 4 → | Jun 5, 2:45 pm EDT | AXT INCAXTI | 754 | — | — | 73,498 | — | |
| May 24, 2018 AForm 4 → | May 24, 8:39 pm EDT | AXT INCAXTI | 7,594 | — | — | 172,401 | — | plan? |
| Aug 1, 2017 SForm 4 → | Aug 2, 7:09 pm EDT | AXT INCAXTI | 9,000 | $8.80 | $79,200 | 164,807 | −5.18% | plan? |
| May 27, 2017 AForm 4 → | May 26, 8:35 pm EDT | AXT INCAXTI | 8,823 | — | — | 173,807 | — | plan? |
| May 26, 2016 AForm 4 → | May 31, 4:42 pm EDT | AXT INCAXTI | 16,260 | — | — | 164,984 | — | plan? |
| May 18, 2016 DForm 4 → | May 20, 7:54 pm EDT | TIME WARNER CABLE INC.TWC | 4,678 | — | — | 0 | — | plan? |
| Jan 8, 2016 MForm 4 → | Jan 11, 5:27 pm EST | TIME WARNER CABLE INC.TWC | 603 | — | — | 4,678 | — | plan? |
| Nov 2, 2015 AForm 4 → | Dec 7, 2:07 pm EST | AXT INCAXTI | 13,761 | — | — | 148,724 | — | plan? late |
| Jul 8, 2015 MForm 4 → | Jul 9, 4:59 pm EDT | TIME WARNER CABLE INC.TWC | 722 | — | — | 4,075 | — | plan? |
| May 27, 2015 AForm 4 → | May 29, 1:55 pm EDT | AXT INCAXTI | 11,952 | — | — | 134,963 | — | plan? |
| Feb 13, 2015 MForm 4 → | Feb 18, 4:39 pm EST | TIME WARNER CABLE INC.TWC | 910 | — | — | 3,353 | — | plan? |
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| May 18, 2016 DForm 4 → | May 20, 7:54 pm EDT | TIME WARNER CABLE INC.TWC | 23,041 | — | — | 0 | — | |
| Feb 10, 2016 AForm 4 → | Feb 11, 6:03 pm EST | TIME WARNER CABLE INC.TWC | 830 | — | — | 17,534 | — | |
| Jan 8, 2016 MForm 4 → | Jan 11, 5:27 pm EST | TIME WARNER CABLE INC.TWC | 603 | — | — | 5,507 | — | |
| Jul 8, 2015 MForm 4 → | Jul 9, 4:59 pm EDT | TIME WARNER CABLE INC.TWC | 722 | — | — | 6,110 | — | |
| Feb 13, 2015 MForm 4 → | Feb 18, 4:39 pm EST | TIME WARNER CABLE INC.TWC | 910 | — | — | 16,704 | — | |
| Feb 11, 2015 AForm 4 → | Feb 13, 4:15 pm EST | TIME WARNER CABLE INC.TWC | 1,058 | — | — | 17,614 | — |