The meme stock rally continues, and one big shareholder cashed out.

Shares of Opendoor Technologies ( OPEN 15.89% ) have resumed their rally after a brief pause last month. The stock jumped as much as 12.3% this morning and remained higher by 4.8% as of 12:05 p.m. ET. Opendoor has become the latest meme stock as retail investors continue to push it higher.

That jump comes despite a recent Securities and Exchange Commission (SEC) filing showing that one large shareholder is cashing in on the rally.

A meme stock bonanza

Opendoor's business has been struggling. The online real estate company has been a victim of a sluggish housing market . Its stock bottomed out in June at $0.51 per share. Then retail investors stepped in and sparked a huge rally. Short-covering accelerated it

See Full Page