Chih-Hsiang (Thompson) Lin insider trades: Applied Optoelectronics (AAOI) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Chih-Hsiang reports to the SEC
Open-market buys and sales
29 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 12, 2026 | AAOI | ↓ Sell | 59,000 | $166.53 | $9.8M | Direct | Jun 16, 2026 (4d) |
| May 19, 2026 | AAOI | ↓ Sell | 58,000 | $173.26 | $10.0M | Direct | May 19, 2026 (0d) |
| Aug 14, 2025 | AAOI | ↑ Buy | 5,750 | $21.62 | $124K | By 401(k) | Aug 15, 2025 (1d) |
| Aug 14, 2025 | AAOI | ↑ Buy | 2,325 | $21.39 | $50K | Direct | Aug 15, 2025 (1d) |
| Aug 13, 2025 | AAOI | ↑ Buy | 9,750 | $22.98 | $224K | by 401(k) | Aug 14, 2025 (1d) |
| Aug 13, 2025 | AAOI | ↑ Buy | 8,850 | $22.53 | $199K | Direct | Aug 14, 2025 (1d) |
| May 13, 2025 | AAOI | ↑ Buy | 21,200 | $18.22 | $386K | Direct | May 14, 2025 (1d) |
| Mar 18, 2024 | AAOI | ↑ Buy | 11,780 | $12.66 | $149K | Direct | Mar 18, 2024 (0d) |
| Sep 14, 2023 | AAOI | ↑ Buy | 15,000 | $9.79 | $147K | Direct | Sep 14, 2023 (0d) |
| Sep 6, 2023 | AAOI | ↑ Buy | 5,964 | $12.44 | $74K | Direct | Sep 6, 2023 (0d) |
| Aug 18, 2023 | AAOI | ↑ Buy | 20,000 | $12.38 | $248K | Direct | Aug 18, 2023 (0d) |
| Aug 11, 2023 | AAOI | ↑ Buy | 15,802 | $12.60 | $199K | Direct | Aug 14, 2023 (3d) |
| Nov 8, 2022 | AAOI | ↑ Buy | 44,443 | $2.20 | $98K | Direct | Nov 8, 2022 (0d) |
| Feb 4, 2021 | AAOI | ↓ Sell10b5-1 | 5,281 | $11.20 | $59K | Direct | Feb 8, 2021 (4d) |
| Feb 1, 2021 | AAOI | ↓ Sell10b5-1 | 2,507 | $11.20 | $28K | Direct | Feb 3, 2021 (2d) |
| Jan 27, 2021 | AAOI | ↓ Sell10b5-1 | 23,364 | $11.31 | $264K | Direct | Jan 29, 2021 (2d) |
| Oct 1, 2020 | AAOI | ↓ Sell10b5-1 | 7,788 | $11.22 | $87K | Direct | Oct 5, 2020 (4d) |
| Sep 1, 2020 | AAOI | ↓ Sell10b5-1 | 7,788 | $11.46 | $89K | Direct | Sep 4, 2020 (3d) |
| Aug 3, 2020 | AAOI | ↓ Sell10b5-1 | 7,788 | $14.65 | $114K | Direct | Aug 3, 2020 (0d) |
| Jul 6, 2020 | AAOI | ↓ Sell10b5-1 | 15,576 | $11.21 | $175K | Direct | Jul 8, 2020 (2d) |
| May 7, 2020 | AAOI | ↓ Sell10b5-1 | 7,788 | $11.20 | $87K | Direct | May 8, 2020 (1d) |
| Apr 30, 2020 | AAOI | ↓ Sell10b5-1 | 15,577 | $11.25 | $175K | Direct | May 1, 2020 (1d) |
| Nov 20, 2017 | AAOI | ↓ Sell | 3,600 | $45.24 | $163K | Direct | Nov 20, 2017 (0d) |
| May 12, 2017 | AAOI | ↓ Sell | 8,586 | $66.00 | $567K | Direct | May 15, 2017 (3d) |
| Nov 17, 2016 | AAOI | ↓ Sell | 19,737 | $25.74 | $508K | Direct | Nov 18, 2016 (1d) |
| Aug 5, 2016 | AAOI | ↓ Sell10b5-1 | 5,425 | $13.73 | $74K | Direct | Aug 9, 2016 (4d) |
| Mar 4, 2016 | AAOI | ↓ Sell | 5,643 | $18.63 | $105K | Direct | Mar 8, 2016 (4d) |
| Feb 1, 2016 | AAOI | ↓ Sell10b5-1 | 2,792 | $15.90 | $44K | Direct | Feb 3, 2016 (2d) |
| Mar 25, 2014 | AAOI | ↓ Sell | 11,531 | $24.25 | $280K | Direct | Apr 2, 2014 (8d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other AAOI insiders
Open-market trades in the last 12 months
About Chih-Hsiang (Thompson) Lin's insider trades
Chih-Hsiang (Thompson) Lin is President and CEO at Applied Optoelectronics (AAOI). Since Mar 25, 2014, Chih-Hsiang has reported 11 open-market purchases worth $1.9M and 18 sales worth $22.7M on SEC Form 4. In the last 12 months: 2 sales ($19.9M).
11 sales (5% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include shares withheld for taxes (78 filings), option exercises (24 filings), grants and awards (19 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every AAOI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.