CHANG DAVID C
Director · AXTI
As of 2026-09-17, CHANG DAVID C has 12 Form 4 transactions on record across 1 company — 10 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-15 | AXTI | Sale | 8,333 @ $111.17 | $926K | −11.3% of holding | 65,165 | Form 4 |
| 2026-03-10 | AXTI | Sale | 20,000 @ $46.00 | $920K | −21.6% of holding | 72,744 | Form 4 |
| 2026-03-05 | AXTI | Sale | 20,000 @ $38.42 | $768K | −17.7% of holding | 92,744 | Form 4 |
| 2026-03-04 | AXTI | Sale | 20,000 @ $38.53 | $771K | −15.1% of holding | 112,744 | Form 4 |
| 2025-12-09 | AXTI | Sale | 25,000 @ $14.84 | $371K | −15.8% of holding | 132,744 | Form 4 |
| 2025-12-02 | AXTI | Sale | 25,000 @ $12.33 | $308K | −13.7% of holding | 157,744 | Form 4 |
| 2025-11-28 | AXTI | Sale | 25,000 @ $10.72 | $268K | −12.0% of holding | 182,744 | Form 4 |
| 2025-11-05 | AXTI | Sale | 100,000 @ $8.94 | $894K | −32.5% of holding | 207,744 | Form 4 |
4 award / exercise / gift records — not counted as purchases
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.