StockCIK 1031235

Global Self Storage, Inc. (SELF): Insider Trades and Fund Holdings

In the past 12 months, Global Self Storage, Inc. insiders reported 13 open-market purchases worth $403K and 0 sales worth $0.

13Insider buys, 12 months

$403KBought by insiders, 12 months

$0Sold by insiders, 12 months

1Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Sep 11, 2026.

Recent SELF insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Sep 11	Sep 9	Mark Campbell WinmillCEO	CEO	▲ BUY	3,658	5.16	$19K	+1.0%	Form 4 ↗
Sep 11	Sep 10	Mark Campbell WinmillCEO	CEO	▲ BUY	342	5.16	$2K	+0.1%	Form 4 ↗
Aug 26	Aug 26	Winmill & Co. IncOther	Other	▲ BUY	7,761	5.64	$44K	+3.5%	Form 4 ↗
Aug 26	Aug 25	Winmill & Co. IncOther	Other	▲ BUY	7,547	5.66	$43K	+3.5%	Form 4 ↗
Aug 24	Aug 24	Winmill & Co. IncOther	Other	▲ BUY	8,022	5.62	$45K	+3.9%	Form 4 ↗
Aug 24	Aug 21	Winmill & Co. IncOther	Other	▲ BUY	7,117	5.45	$39K	+3.6%	Form 4 ↗
Aug 20	Aug 20	Winmill & Co. IncOther	Other	▲ BUY	6,901	5.42	$37K	+3.6%	Form 4 ↗
Aug 20	Aug 19	Winmill & Co. IncOther	Other	▲ BUY	6,877	5.40	$37K	+3.7%	Form 4 ↗
Aug 18	Aug 17	Winmill & Co. IncOther	Other	▲ BUY	7,117	5.33	$38K	+4.2%	Form 4 ↗
Aug 18	Aug 18	Winmill & Co. IncOther	Other	▲ BUY	5,736	5.32	$31K	+3.2%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

All 13 SELF insider trades →

Insiders who traded in the past year

Insider	Role	Buys	Bought	Sold	Latest
Mark Campbell Winmill	CEO	2	$21K	$0	Sep 11, 2026
Winmill & Co. Inc	Other	10	$374K	$0	Aug 26, 2026
Russell E. Burke III	Director	1	$8K	$0	Aug 14, 2026

Tracked funds that report SELF

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

Fund	Quarter	Shares	Value	% of portfolio	Change
Renaissance Technologies	Q2 2026	198,075	$1.04M	0.00%	▼ −8.4%

Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →