William H. Yeh

William H. Yeh is a declared insider of Applied Optoelectronics, Inc. (board member), with filings sourced from SEC (Form 4). The record holds 40 filings, for trades running from 1 October 2013 to 9 June 2026.

The open-market side counts 9 purchases for €847k alongside 7 sales for €5.5M. Taken together, the sales exceed the purchases by €4.7M. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Outside the open market, there are 14 share grants and 5 option exercises. So far in 2026, the count stands at no purchases and 1 sale.

In size, the median ticket on the buying side is €80k. 6 out of 9 purchases came within 30 days of a purchase by at least one other insider of the same company. Purchases made close together by different insiders form what is called a cluster. For 9 purchases whose 90-day window has closed, the share price was higher on day 90 than the day after publication in 33% of cases, with a median move of -6.5%. They describe history only and say nothing certain about the share price ahead.

Most recently, on 11 June 2026, the filings show a share grant in Applied Optoelectronics, Inc. The clock since the last published purchase (14 August 2025) now reads 451 days. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. US insiders must file a Form 4 within two business days of a trade. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.