CHANG DAVID C — SEC Form 4 filings
SEC reporting owner CIK 1188184. 9 Form 4 filings on record with FilingPulse; latest filed 2026-06-17.
Transaction summary — filings shown
Covers all 9 filings on record, filed 2024-05-20 to 2026-06-17. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 8 legs across 6 filings — 243,333 shares, $5,226,739 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 3.
- Largest priced transaction: sale of 8,333 shares @ $111.17 ($926,392) in AXT INC, filed 2026-06-17.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| AXT INC (AXTI) | Director | 9 | — | 8 legs · 243,333 sh · $5,226,739 | 3 |
Form 4 filings — CHANG DAVID C
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-17 | 4 | AXT INC (AXTI) | Sale (S): 8,333 @ $111.17 | EDGAR |
| 2026-06-05 | 4 | AXT INC (AXTI) | Grant/award (A): 754 | EDGAR |
| 2026-03-12 | 4 | AXT INC (AXTI) | Sale (S): 20,000 @ $46.00 | EDGAR |
| 2026-03-05 | 4 | AXT INC (AXTI) | Sale (S): 20,000 @ $38.53 · Sale (S): 20,000 @ $38.42 | EDGAR |
| 2025-12-10 | 4 | AXT INC (AXTI) | Sale (S): 25,000 @ $14.84 | EDGAR |
| 2025-12-02 | 4 | AXT INC (AXTI) | Sale (S): 25,000 @ $10.72 · Sale (S): 25,000 @ $12.33 | EDGAR |
| 2025-11-06 | 4 | AXT INC (AXTI) | Sale (S): 100,000 @ $8.94 | EDGAR |
| 2025-05-16 | 4 | AXT INC (AXTI) | Grant/award (A): 55,172 | EDGAR |
| 2024-05-20 | 4 | AXT INC (AXTI) | Grant/award (A): 23,323 @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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