MARK WINMILL

Holdings History for Global Self Storage, Inc. - Common Stock, $0.01 par value per share (SELF)

Symbol: SELF on Nasdaq
Investment type: Equity / Common Stock, $0.01 par value per share
Latest Disclosed Shares Owned: 947,735 shares
Security Ownership %: 8.4%

Mark Campbell Winmill ownership in Global Self Storage, Inc. Common Stock, $0.01 par value per share (SELF)

05 Dec 2025 - Mark Campbell Winmill has filed an SCHEDULE 13D/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 947,735 shares of Global Self Storage, Inc. Common Stock, $0.01 par value per share (SELF). This represents 8.4% ownership of the company. In their previous filing dated 21 May 2025, WINMILL MARK CAMPBELL had reported owning 823,877 shares, indicating an increase of +15%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
Mark Campbell Winmill	8.4%	+16%	$4,605,994	947,735	+123,858	+15%	$4.86	13D/A	03 Dec 2025	05 Dec 2025, 16:26
Mark Campbell Winmill	7.3%		$4,251,207	823,877			$5.16	13D/A	21 May 2025	21 May 2025, 16:01