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Reporting owner

WINMILL MARK CAMPBELL

Reporting owner CIK 0001019264 · President and CEO · Director

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These transactions appear in filings associated with this reporting owner. Jointly reported quantities and amounts are unallocated; they are not this owner's individual purchases or total holdings. Names and roles reflect the relevant filing, and a reporting owner may be a person or an organization.

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Transaction timeline

Who reported an acquisition, and when the transaction occurred.

Reported acquisitions by transaction dateEach row is a reporting owner. Select a marker to open its transaction details. Jointly reported transactions appear for each associated reporting owner, without dividing quantities or amounts.WINMILL MARK CAMPBELLWINMILL MARK CAMPBELLWINMILL MARK CAMPBELL · December 5, 2025 · Purchase · Common StockWINMILL MARK CAMPBELL · December 5, 2025 · Purchase · Common StockWINMILL MARK CAMPBELL · December 4, 2025 · Purchase · Common StockWINMILL MARK CAMPBELL · December 3, 2025 · Purchase · Common StockDec 3, 2025Dec 5, 2025
PurchaseStock awardGift receivedExercise / conversionConversionOther acquisition

4 dated transactions · 1 of 1 reporting owners shown. Select one owner to focus the chart.

View timeline as a table
Transaction dateCompany / securityReporting ownersAcquisition type
Dec 5, 2025Global Self Storage, Inc.Common StockWINMILL MARK CAMPBELLPurchase
Dec 5, 2025Global Self Storage, Inc.Common StockWINMILL MARK CAMPBELLPurchase
Dec 4, 2025Global Self Storage, Inc.Common StockWINMILL MARK CAMPBELLPurchase
Dec 3, 2025Global Self Storage, Inc.Common StockWINMILL MARK CAMPBELLPurchase

Only transactions on this page are shown. Date windows end on the latest transaction date in this sample. Joint filings may appear on more than one row. Sales are not included. Share-price charts use a separate data source.

Transactions in associated filings

Reported insider acquisitions, ordered by filing date, newest first. Currency is shown only when reported.
Filed / transactedCompanyReporting ownersType / securityQuantityPrice / reference valueDetails
Trade: Global Self Storage, Inc.SELF · company listings
WINMILL MARK CAMPBELLPresident and CEO · Director
PurchaseCommon StockNon-derivative security · Code P3,6005.09Value: 18,324Currency not specifiedView ↗
Trade: Global Self Storage, Inc.SELF · company listings
WINMILL MARK CAMPBELLPresident and CEO · Director
PurchaseCommon StockNon-derivative security · Code P8005.05Value: 4,040Currency not specifiedView ↗
Trade: Global Self Storage, Inc.SELF · company listings
WINMILL MARK CAMPBELLPresident and CEO · Director
PurchaseCommon StockNon-derivative security · Code P6,0005.1415Value: 30,849Currency not specifiedView ↗
Trade: Global Self Storage, Inc.SELF · company listings
WINMILL MARK CAMPBELLPresident and CEO · Director
PurchaseCommon StockNon-derivative security · Code P6,0005.1284Value: 30,770.4Currency not specifiedView ↗