Summary
Updated Aug 30, 2026
Mark Wilhelm Murski files SEC Form 4 reports at City Office REIT, Inc. (CIO). 3 SEC Form 4 filings on record going back to 2024, most recently on 9 January 2026.
Recent Transactions
1Every recent SEC Form 4 transaction Mark Wilhelm Murski has reported, most recent first.
Other Insiders Active in the Same Sector
No other insider has filed at Mark Wilhelm Murski's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Mark Kidd - $7.94M of IRM open-market activity in the last 12 months
- Eugene M. Noel - $7.87M of AMT open-market activity in the last 12 months
- Hamid Moghadam - $7.50M of PLD open-market activity in the last 12 months
- REDWOOD CAPITAL MANAGEMENT, LLC - $7.07M of OPI open-market activity in the last 12 months
- Rodney M. Smith - $6.60M of AMT open-market activity in the last 12 months
- Keith D. Taylor - $6.56M of EQIX open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Mark Wilhelm Murski?
Mark Wilhelm Murski is a corporate insider of City Office REIT, Inc. (CIO). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Mark Wilhelm Murski last file a Form 4?
The most recent primary Form 4 on record is dated 9 January 2026, one of 3 filings going back to 2024.
Where can I see all of Mark Wilhelm Murski'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.
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