5 transactions on file, per SEC Form 4 filings.
Cheng Marvin
VP-Manufacturing, Secy · 2026-09-08
Sold
$97K
Cheng Marvin
VP-Manufacturing, Secy · 2026-09-04
Sold
$194K
Cheng Marvin
VP-Manufacturing, Secy · 2026-09-01
Sold
$96K
Cheng Marvin
VP-Manufacturing, Secy · 2026-08-20
Sold
$213K
Guo Jian
Chief Financial Officer · 2026-08-13
Option exercise
$78K
Each row links to the underlying SEC filing. Sells are shown for transparency, not as a signal — see the insider trading article for why.
Following an insider into a stock isn't a strategy on its own. Run your own margin-of-safety analysis, free.
Analyze KRT