David C. Chang
CIK: 0001188184
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)8 (80.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)2 (20.0%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
AXTI
AXT INC
Director
Discretionary Trading P&L
Holdings
Transaction History (10 total)
- Jun 15, 2026AXTI
AXT INC
Sale(S)Direct8.3K shares at avg. $111.17$926K - Jun 4, 2026AXTI
AXT INC
Award(A)Direct754 shares- - Mar 10, 2026AXTI
AXT INC
Sale(S)Direct20K shares at avg. $46.00$920K - Mar 5, 2026AXTI
AXT INC
Sale(S)Direct20K shares at avg. $38.42$768K - Mar 4, 2026AXTI
AXT INC
Sale(S)Direct20K shares at avg. $38.53$771K - Dec 9, 2025AXTI
AXT INC
Sale(S)Indirect25K shares at avg. $14.84$371K - Dec 2, 2025AXTI
AXT INC
Sale(S)Indirect25K shares at avg. $12.33$308K - Nov 28, 2025AXTI
AXT INC
Sale(S)Indirect25K shares at avg. $10.72$268K - Nov 5, 2025AXTI
AXT INC
Sale(S)Direct100K shares at avg. $8.94$894K - May 15, 2025AXTI
AXT INC
Award(A)Direct55.2K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 15, 2026 | AXTI AXT INC | Sale(S) | 8,333 | $111.17 | $926,392 | Direct |
| Jun 4, 2026 | AXTI AXT INC | Award(A) | 754 | - | $0 | Direct |
| Mar 10, 2026 | AXTI AXT INC | Sale(S) | 20,000 | $46.00 | $919,918 | Direct |
| Mar 5, 2026 | AXTI AXT INC | Sale(S) | 20,000 | $38.42 | $768,476 | Direct |
| Mar 4, 2026 | AXTI AXT INC | Sale(S) | 20,000 | $38.53 | $770,638 | Direct |
| Dec 9, 2025 | AXTI AXT INC | Sale(S) | 25,000 | $14.84 | $371,025 | Indirect |
| Dec 2, 2025 | AXTI AXT INC | Sale(S) | 25,000 | $12.33 | $308,250 | Indirect |
| Nov 28, 2025 | AXTI AXT INC | Sale(S) | 25,000 | $10.72 | $268,000 | Indirect |
| Nov 5, 2025 | AXTI AXT INC | Sale(S) | 100,000 | $8.94 | $894,040 | Direct |
| May 15, 2025 | AXTI AXT INC | Award(A) | 55,172 | - | - | Direct |
1-10 of 10 transactions
About CHANG DAVID C
CHANG DAVID C (SEC CIK 0001188184) files insider reports with the SEC as Director of AXT INC (AXTI).
Signal8 holds 8 ownership filings by CHANG DAVID C, all Form 4s, filed between May 16, 2025 and Jun 17, 2026. Those filings report 10 transactions, from May 15, 2025 to Jun 15, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on CHANG DAVID C's filings is in FREMONT, CA.
Recent filings by CHANG DAVID C
- Jun 15, 2026: Open-market sale of AXTI shares (Form 4, code S).
- Jun 4, 2026: Grant or award of AXTI shares (Form 4, code A).
- Mar 10, 2026: Open-market sale of AXTI shares (Form 4, code S).
- Mar 5, 2026: Open-market sale of AXTI shares (Form 4, code S).
- Mar 4, 2026: Open-market sale of AXTI shares (Form 4, code S).
Other insiders filing for AXT INC (AXTI)
- YOUNG MORRIS S, CEO
- FISCHER GARY L, CFO
- LEBLANC LEONARD J, Director
- Duh Jia-bin, Director
- Liu Tracy, Director
- CHEN JESSE, Director