About this page
Insider trades reported on SEC Form 4: when the people who run a company buy or sell its shares with their own money.
How to read it
- Form 4
- The form a company insider (officer, director or owner of more than 10%) must file with the SEC within two business days of buying or selling the company's shares.
- Buy (P) and Sell (S)
- Open-market purchases and sales. Gifts, option exercises and automatic tax withholding are left out because they say little about what the insider thinks.
- Value
- Shares times price, as reported on the filing.
- 10b5-1
- A trade made under a plan set up in advance. Planned sales are common and usually say less than an unplanned purchase.
- Late filing
- A Form 4 filed more than two business days after the trade.
- Vs. S&P 500
- How the stock did after the trade minus how the overall market did in the same weeks.
A real example
In January 2016, when bank stocks were falling, JPMorgan Chase CEO Jamie Dimon bought 500,000 JPMorgan shares with his own money, worth about $26 million. His Form 4 made the purchase public within days, and investors read it as a strong sign of confidence.
Explain it like I'm 13
If the coach of a team bets his own allowance that his team will win, that tells you something. A Form 4 is the note a company boss must hand in whenever he buys or sells his own company's shares, so everyone can see it.
Data from public SEC filings and congressional reports. Information, not investment advice. Check every number against the filing linked on the page.
APPLIED OPTOELECTRONICS, INC. (AAOI): Insider Trades and Fund Holdings
In the past 12 months, APPLIED OPTOELECTRONICS, INC. insiders reported 0 open-market purchases worth $0 and 5 sales worth $5.99M; 4 of the sales were reported as made under a 10b5-1 trading plan.
Timeline: news and trades
Company filings (8-K), insider trades, notices of planned sales (Form 144) and fund moves in the past year, newest first.
- Oct 13, 2026Planned saleMurry Stefan J. (officer) filed notice to sell about $411,486 around Oct 12, 2026
- Oct 12, 2026Insider saleCFO Stefan J. Murry sold $411,480 under a 10b5-1 plan
- Oct 5, 2026Insider sale*** See Remarks Shu-Hua (joshua) Yeh sold $720,180 under a 10b5-1 plan
- Oct 5, 2026Planned saleYeh Shu-Hua (Joshua) (officer) filed notice to sell about $720,155 around Oct 5, 2026
- Sep 15, 2026NewsCompany reported: Signed a material agreement
- Sep 10, 2026NewsCompany reported: Signed a material agreement
- Sep 10, 2026Insider saleCFO Stefan J. Murry sold $421,320 under a 10b5-1 plan (0 days after: signed a material agreement)
- Sep 10, 2026Planned saleMurry Stefan J. (officer) filed notice to sell about $421,314 around Sep 10, 2026
- Sep 9, 2026Planned saleChang Hung-Lun (Fred) (officer) filed notice to sell about $3.5 million around Sep 8, 2026
- Sep 8, 2026Insider sale*** See Remarks Hung-Lun (fred) Chang sold $3.5 million (7 days after: signed a material agreement)
- Sep 1, 2026NewsCompany reported: Signed a material agreement
- Aug 24, 2026NewsCompany reported: Signed a material agreement; Executive or director change
- Aug 21, 2026NewsCompany reported: Signed a material agreement
- Aug 18, 2026Insider sale*** See Remarks Shu-Hua (joshua) Yeh sold $886,380 under a 10b5-1 plan
- Aug 18, 2026Planned saleYeh Shu-Hua (Joshua) (officer) filed notice to sell about $886,396 around Aug 18, 2026
- Jun 30, 2026FundBridgewater Associates sold out in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundRenaissance Technologies sold out in Q2 2026 (13F filed Aug 13, 2026)
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 14, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Oct 14 | Stefan J. MurryCFO | ▼ SELL10b5-1 | $411K |
| Oct 7 | Shu-Hua (joshua) Yeh*** See Remarks | ▼ SELL10b5-1 | $720K |
| Sep 10 | Hung-Lun (fred) Chang*** See Remarks | ▼ SELL | $3.55M |
| Sep 10 | Stefan J. MurryCFO | ▼ SELL10b5-1 | $421K |
| Aug 20 | Shu-Hua (joshua) Yeh*** See Remarks | ▼ SELL10b5-1 | $886K |
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Stefan J. Murry | CFO | 0 | $0 | 2 | $833K |
| Shu-Hua (joshua) Yeh | *** See Remarks | 0 | $0 | 2 | $1.61M |
| Hung-Lun (fred) Chang | *** See Remarks | 0 | $0 | 1 | $3.55M |
Buybacks and executive pay
| Year | CEO pay reported | CEO pay "actually paid" | Value of $100 invested |
|---|---|---|---|
| 2025 | $4.77M | −$3.23M | n/a |
| 2024 | $3.70M | $33.3M | n/a |
| 2023 | $6.05M | $38.4M | n/a |
From the company's XBRL data filed with the SEC. "Actually paid" is the SEC's pay-versus-performance measure, which counts changes in the value of stock awards. "Value of $100 invested" is the company's cumulative shareholder return as reported, usually measured from five years earlier. See all buybacks and CEO pay across companies.
Tracked funds that report AAOI
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Bridgewater Associates | 0 | $0 | ▼ Sold out |
| Renaissance Technologies | 0 | $0 | ▼ Sold out |
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →