Clearsign Technologies CORP Schedule 13G passive stakes

Filed when an investor crosses five percent without intending to seek control — the passive counterpart to a 13D.

NASDAQ
John M. Pasquesi and Otter Capital LLC report beneficial ownership of 19.99% of ClearSign Technologies Corp. common stock.
NASDAQ
Otter Capital LLC and its managing member, John M. Pasquesi, have disclosed a 19.99% beneficial ownership stake in ClearSign Technologies Corporation, including common stock and exercisable private warrants.