Markell Jack A. — SEC Form 4 Insider Trading Activity
Summary
Updated Jul 16, 2026
Markell Jack A. has filed 2 SEC Form 4 filings across 2 companies in the last 90 days.
Profile
Markell Jack A. appears in SEC filings as a director of Graham Holdings Co and Rush Street Interactive, Inc. as of 2026-04-02. The filings indicate governance roles with two public companies. Additional verified biographical details are not provided within the SEC context here. Graham Holdings Co is a diversified holding company with media and education assets; Rush Street Interactive, Inc. operates online sports betting and gaming platforms. Based on the SEC filings, he serves in board roles and would be involved in oversight of corporate governance and strategy for these entities.
Markell Jack A. appears in SEC filings as a director of Graham Holdings Co and Rush Street Interactive, Inc. as of 2026-04-02. The filings indicate governance roles with two public companies. Additional verified biographical details are not provided within the SEC context here. Graham Holdings Co is a diversified holding company with media and education assets; Rush Street Inte…
How many SEC Form 4 filings has Markell Jack A. submitted recently?
2 primary Form 4 filings in the last 90 days, covering 2 companies.
Where can I see all of Markell Jack A.'s SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
