Lin Shih-Yao David
SEC Form 4 insider trading activity
Lin Shih-Yao David has filed 3 SEC Form 4 filings (90 transaction rows) across 1 company, with disclosures dating back to 2026. 3 of those filings fall inside the rolling window. Most recent filing: Oct 7, 2026.
On the most recent filing, Lin Shih-Yao David is listed as 10% Owner at IRIDEX CORP. Inside the rolling window, Lin Shih-Yao David reported 90 open-market purchases totaling $1.3M in IRIX and no open-market sales. The largest disclosed transaction in the window is a purchase of 80,000 IRIX shares on May 23, 2025, worth $80K.
Companies traded
Other insiders at IRIX
Insider Buying
$1.3M
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| IRIX | 10% Owner | Purchase | 244 | $227 | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 10,260 | $10K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 20,000 | $19K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 18,892 | $18K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 20,000 | $19K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 11,404 | $11K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 7,675 | $8K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 14,202 | $14K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 4,031 | $4K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 7,009 | $8K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 1,330 | $2K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 20,000 | $24K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 30,000 | $44K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 33,013 | $49K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 4,050 | $6K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 637 | $949 | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 19,324 | $27K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 40,535 | $59K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 129 | $188 | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 15,703 | $22K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 100 | $138 | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 14,943 | $21K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 1,424 | $2K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 752 | $1K | Oct 7 | SEC ↗ | |
| IRIX | 10% Owner | Purchase | 967 | $1K | Oct 7 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has Lin Shih-Yao David made?
Lin Shih-Yao David has filed 3 SEC Form 4 filings (90 transaction rows) across 1 company since 2026.
Which companies does Lin Shih-Yao David trade?
Lin Shih-Yao David has filed SEC Form 4 disclosures for 1 company, including IRIX.
When was Lin Shih-Yao David's most recent SEC Form 4 filing?
Lin Shih-Yao David's most recent SEC Form 4 filing on Tracefour is dated Oct 7, 2026.
What is Lin Shih-Yao David's total buy and sell value in the current window?
Inside the rolling retention window, Lin Shih-Yao David bought $1.3M and sold $0 based on SEC Form 4 filings.
What was Lin Shih-Yao David's largest disclosed transaction?
The largest disclosed transaction in the current window is a purchase of 80,000 IRIX shares on 2025-05-23, worth $80K, per SEC Form 4 filings.