Significant Ownership of Mark Campbell Winmill

Large-stake snapshot 1 signal
Large-stake filing summary
  • Recent SEC Schedule 13D/G filings for Mark Campbell Winmill focus on large-stake beneficial ownership disclosures and amendments.
  • Use this view to spot new large holders, amended positions, and activist-style ownership evidence.
Manager Names, identifiers, and filing context for this profile. 2 identity fields
Manager signature
/s/ Mark C. Winmill - Mark Campbell Winmill
Manager location
Millbrook, NY

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Significant Ownership of Mark Campbell Winmill

Sym Company Class Ownership Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
SELF GLOBAL SELF STORAGE, INC. Common Stock, $0.01 par value per share 8.4% $4,605,994 +$601,950 947,735 +15% Mark Campbell Winmill 03 Dec 2025

Schedules 13D/G Reported by Mark Campbell Winmill:

Sym Target Class Ownership Change Current shares Change Value Reporting name Form Report period Filing date
Schedule rows are parsed from SEC 13D/G filings. Open the linked filing or target page to verify the reported ownership and shares.
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