Stephen Chunping Chang
CIK 1722000 · View on SEC EDGAR ↗
Insider
First SEC filing: Sept. 26, 2019 · Latest: May 26, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 34 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 21, 2026 | AOSL | G | 2,000 | — | — | 634,070 Direct | -0.31% | Disposed | (price as of 2026-08-20) |
| Jan. 2, 2026 | AOSL | F | 12,002 | $20.66 | $247,961 | 564,862 Direct | -2.08% | Disposed | 29.7% (price as of 2026-08-20) |
| March 17, 2025 | AOSL | A | 67,500 | — | — | 552,187 Direct | +13.93% | Acquired | (price as of 2026-08-20) |
| March 17, 2025 | AOSL | F | 19,996 | $27.61 | $552,090 | 532,191 Direct | -3.62% | Disposed | -2.9% (price as of 2026-08-20) |
| March 17, 2025 | AOSL | F | 11,013 | $27.61 | $304,069 | 521,178 Direct | -2.07% | Disposed | -2.9% (price as of 2026-08-20) |
| March 17, 2025 | AOSL | A | 57,500 | — | — | 578,678 Direct | +11.03% | Acquired | (price as of 2026-08-20) |
| Jan. 2, 2025 | AOSL | F | 11,224 | $36.54 | $410,125 | 484,687 Direct | -2.26% | Disposed | -26.7% (price as of 2026-08-20) |
| Nov. 8, 2024 | AOSL | G | 2,000 | — | — | 495,784 Direct | -0.40% | Disposed | (price as of 2026-08-20) |
| March 15, 2024 | AOSL | A | 57,500 | — | — | 516,929 Direct | +12.52% | Acquired | (price as of 2026-08-20) |
| March 15, 2024 | AOSL | F | 13,940 | $21.55 | $300,407 | 502,989 Direct | -2.70% | Disposed | 24.4% (price as of 2026-08-20) |
| March 15, 2024 | AOSL | F | 6,080 | $21.55 | $131,024 | 496,909 Direct | -1.21% | Disposed | 24.4% (price as of 2026-08-20) |
| Jan. 2, 2024 | AOSL | A | 90,000 | — | — | 467,637 Direct | +23.83% | Acquired | (price as of 2026-08-20) |
| Jan. 2, 2024 | AOSL | F | 8,208 | $27.38 | $224,735 | 459,429 Direct | -1.76% | Disposed | -2.1% (price as of 2026-08-20) |
| March 15, 2023 | AOSL | A | 57,500 | — | — | 369,588 Direct | +18.42% | Acquired | (price as of 2026-08-20) |
| March 15, 2023 | AOSL | F | 6,762 | $25.45 | $172,093 | 362,826 Direct | -1.83% | Disposed | 5.3% (price as of 2026-08-20) |
| March 15, 2023 | AOSL | F | 5,201 | $25.45 | $132,365 | 357,625 Direct | -1.43% | Disposed | 5.3% (price as of 2026-08-20) |
| March 15, 2023 | AOSL | A | 19,350 | — | — | 376,975 Direct | +5.41% | Acquired | (price as of 2026-08-20) |
| March 15, 2022 | AOSL | A | 25,000 | — | — | 297,434 Direct | +9.18% | Acquired | (price as of 2026-08-20) |
| March 15, 2022 | AOSL | F | 4,368 | $48.65 | $212,503 | 293,066 Direct | -1.47% | Disposed | -44.9% (price as of 2026-08-20) |
| March 15, 2022 | AOSL | F | 3,748 | $48.65 | $182,340 | 289,318 Direct | -1.28% | Disposed | -44.9% (price as of 2026-08-20) |
| March 15, 2022 | AOSL | A | 3,750 | — | — | 293,068 Direct | +1.30% | Acquired | (price as of 2026-08-20) |
| March 15, 2022 | AOSL | A | 17,500 | — | — | 310,568 Direct | +5.97% | Acquired | (price as of 2026-08-20) |
| March 18, 2021 | AOSL | G | 1,000 | — | — | 272,759 Direct | -0.37% | Disposed | (price as of 2026-08-20) |
| March 15, 2021 | AOSL | A | 17,500 | — | — | 261,662 Direct | +7.17% | Acquired | (price as of 2026-08-20) |
| March 15, 2021 | AOSL | F | 3,159 | $36.27 | $114,577 | 258,503 Direct | -1.21% | Disposed | -26.1% (price as of 2026-08-20) |
| March 15, 2021 | AOSL | F | 2,843 | $36.27 | $103,116 | 255,660 Direct | -1.10% | Disposed | -26.1% (price as of 2026-08-20) |
| March 15, 2021 | AOSL | A | 1,687 | — | — | 257,347 Direct | +0.66% | Acquired | (price as of 2026-08-20) |
| March 15, 2021 | AOSL | A | 3,750 | — | — | 261,097 Direct | +1.46% | Acquired | (price as of 2026-08-20) |
| Feb. 25, 2021 | AOSL | A | 12,000 | — | — | 273,097 Direct | +4.60% | Acquired | (price as of 2026-08-20) |
| March 16, 2020 | AOSL | A | 1,687 | — | — | 239,042 Direct | +0.71% | Acquired | (price as of 2026-08-20) |
| March 16, 2020 | AOSL | A | 3,750 | — | — | 242,792 Direct | +1.57% | Acquired | (price as of 2026-08-20) |
| March 16, 2020 | AOSL | F | 2,223 | $7.36 | $16,361 | 228,984 Direct | -0.96% | Disposed | 264.1% (price as of 2026-08-20) |
| March 16, 2020 | AOSL | F | 3,629 | $7.36 | $26,709 | 225,355 Direct | -1.58% | Disposed | 264.1% (price as of 2026-08-20) |
| March 16, 2020 | AOSL | A | 12,000 | — | — | 237,355 Direct | +5.32% | Acquired | (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Sept. 26, 2019 | AOSL | Common Share | — | Direct |