David C. Chang serves as Executive at AXT INC, where they oversee executive responsibilities. Since joining the company, David C. Chang has executed 44 insider transactions totaling $1.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 9, 2025 involved selling 25,000 shares valued at $371.0K.
David C. Chang currently holds 132,744 shares of AXT INC (AXTI), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, David C. Chang has been a net seller of AXTI stock. They have purchased $63.7K and sold $1.6M worth of shares.
David C. Chang's most recent insider trade was on Dec 9, 2025, when they sold 25,000 shares at $14.84 per share.
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| $12.33 |
| Discretionary |
| Nov 28, 2025 | AXTI | $268.0K | Sale | 25,000 | $10.72 | Discretionary |
| May 16, 2024 | AXTI | $0 | Award | 23,323 | $N/A | Discretionary |
| May 18, 2023 | AXTI | $0 | Award | 23,323 | $N/A | Discretionary |
| May 19, 2022 | AXTI | $0 | Award | 15,238 | $N/A | Discretionary |
| May 20, 2021 | AXTI | $0 | Award | 6,726 | $N/A | Discretionary |
| May 28, 2020 | AXTI | $70.1K | Sale | 12,800 | $5.48 | Discretionary |
| May 21, 2020 | AXTI | $0 | Award | 10,909 | $N/A | Discretionary |
| May 24, 2018 | AXTI | $0 | Award | 7,594 | $N/A | Discretionary |
| May 23, 2018 | AXTI | $0 | Award | 13,452 | $N/A | Discretionary |
| Aug 1, 2017 | AXTI | $79.2K | Sale | 9,000 | $8.80 | Discretionary |
| May 27, 2017 | AXTI | $0 | Award | 8,823 | $N/A | Discretionary |
| May 26, 2016 | AXTI | $0 | Award | 16,260 | $N/A | Discretionary |
| May 18, 2016 | TWC | $0 | Disposition | 4,678 | $N/A | Discretionary |
| Jan 8, 2016 | TWC | $0 | Option Exercise | 603 | $N/A | Discretionary |
| Nov 2, 2015 | AXTI | $0 | Award | 13,761 | $N/A | Discretionary |
| Jul 8, 2015 | TWC | $0 | Option Exercise | 722 | $N/A | Discretionary |
| May 27, 2015 | AXTI | $0 | Award | 11,952 | $N/A | Discretionary |
| Feb 13, 2015 | TWC | $0 | Option Exercise | 910 | $N/A | Discretionary |
| May 13, 2014 | AXTI | $0 | Award | 13,761 | $N/A | Discretionary |
| Feb 14, 2014 | TWC | $0 | Option Exercise | 919 | $N/A | Discretionary |
| May 14, 2013 | AXTI | $0 | Award | 10,909 | $N/A | Discretionary |
| Feb 12, 2013 | TWC | $0 | Option Exercise | 1,296 | $N/A | Discretionary |
| May 15, 2012 | AXTI | $0 | Award | 7,692 | $N/A | Discretionary |
| May 23, 2011 | AXTI | $0 | Award | 4,137 | $N/A | Discretionary |
| Nov 23, 2010 | AXTI | $11.5K | Sale | 1,400 | $8.20 | Discretionary |
| Nov 23, 2010 | AXTI | $461.3K | Sale | 56,600 | $8.15 | Discretionary |
| Aug 31, 2010 | AXTI | $15.4K | Purchase | 3,000 | $5.15 | Discretionary |
| Aug 23, 2010 | AXTI | $16.5K | Purchase | 3,000 | $5.49 | Discretionary |