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Global Self Storage, Inc.

SELF Net buying
CIK 0001031235 #4603 in the set updated 17 Sep 2026
Bought (12 mo)
$940.67K
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$0.00
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$0.00
0 of 0 sales
Net
+$940.67K
+$940.67K against sales at will

By person

9 insiders · 37 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
WINMILL & CO. INC entity
See "Explanation of Responses"
$804.01K (26)
—
+$804.01K
228,512
2.00%
$1.18M
+468.7%
WINMILL MARK CAMPBELL
President and CEO
$125.94K (9)
—
+$125.94K
372,582
3.26%
$1.92M
+29.6%
BURKE RUSSELL E III
Director
$8.46K (1)
—
+$8.46K
40,002
0.3502%
$206.41K
+35.9%
Klimoski Donald II
General Counsel
$2.25K (1)
—
+$2.25K
97,554
0.8541%
$503.38K
+30.1%
TUXIS CORP entity
See "Explanation of Responses"
—
—
—
303,758
2.66%
$1.57M
+6.8%
OMalley Thomas
Chief Financial Officer
—
—
—
91,694
0.8028%
$473.14K
+31.8%
Zachary William Chester
Director
—
—
—
18,296
0.1602%
$94.41K
+150.6%
Kamerman Russell
Assistant General Counsel
—
—
—
5,925
0.0519%
$30.57K
+20.3%
Carroll Sally Coonrad
Director
—
—
—
3,776
0.0331%
$19.48K
+88.8%

Individual transactions

37
Insider
Date
Role
Action
Shares
Price
Amount
WINMILL MARK CAMPBELL
10 Sep 2026
President and CEO
Buy
292
$5.16
$1.51K
WINMILL MARK CAMPBELL
10 Sep 2026
President and CEO
Buy
50
$5.16
$258.00
WINMILL MARK CAMPBELL
9 Sep 2026
President and CEO
Buy
2,058
$5.16
$10.62K
WINMILL MARK CAMPBELL
9 Sep 2026
President and CEO
Buy
1,600
$5.16
$8.26K
WINMILL & CO. INC
26 Aug 2026
See "Explanation of Responses"
Buy
7,761
$5.64
$43.76K
WINMILL & CO. INC
25 Aug 2026
See "Explanation of Responses"
Buy
7,547
$5.66
$42.69K
WINMILL & CO. INC
24 Aug 2026
See "Explanation of Responses"
Buy
8,022
$5.62
$45.05K
WINMILL & CO. INC
21 Aug 2026
See "Explanation of Responses"
Buy
7,117
$5.45
$38.81K
WINMILL & CO. INC
20 Aug 2026
See "Explanation of Responses"
Buy
6,901
$5.42
$37.42K
WINMILL & CO. INC
19 Aug 2026
See "Explanation of Responses"
Buy
6,877
$5.40
$37.16K
WINMILL & CO. INC
18 Aug 2026
See "Explanation of Responses"
Buy
5,736
$5.32
$30.51K
WINMILL & CO. INC
17 Aug 2026
See "Explanation of Responses"
Buy
7,117
$5.33
$37.94K
WINMILL & CO. INC
14 Aug 2026
See "Explanation of Responses"
Buy
6,029
$5.23
$31.51K
WINMILL & CO. INC
13 Aug 2026
See "Explanation of Responses"
Buy
5,629
$5.20
$29.28K
BURKE RUSSELL E III
13 Aug 2026
Director
Buy
1,625
$5.21
$8.46K
WINMILL & CO. INC
12 Aug 2026
See "Explanation of Responses"
Buy
6,248
$5.15
$32.19K
WINMILL & CO. INC
11 Aug 2026
See "Explanation of Responses"
Buy
5,887
$5.17
$30.41K
WINMILL MARK CAMPBELL
14 May 2026
President and CEO
Buy
4,000
$5.33
$21.32K
WINMILL MARK CAMPBELL
5 Dec 2025
President and CEO
Buy
3,600
$5.09
$18.32K
WINMILL MARK CAMPBELL
5 Dec 2025
President and CEO
Buy
800
$5.05
$4.04K
WINMILL MARK CAMPBELL
4 Dec 2025
President and CEO
Buy
6,000
$5.14
$30.85K
WINMILL MARK CAMPBELL
3 Dec 2025
President and CEO
Buy
6,000
$5.13
$30.77K
Klimoski Donald II
2 Dec 2025
General Counsel
Buy
446
$5.05
$2.25K
WINMILL & CO. INC
1 Dec 2025
See "Explanation of Responses"
Buy
3,062
$5.18
$15.85K
WINMILL & CO. INC
28 Nov 2025
See "Explanation of Responses"
Buy
3,342
$5.16
$17.23K
WINMILL & CO. INC
26 Nov 2025
See "Explanation of Responses"
Buy
4,873
$5.17
$25.17K
WINMILL & CO. INC
25 Nov 2025
See "Explanation of Responses"
Buy
4,547
$5.18
$23.57K
WINMILL & CO. INC
24 Nov 2025
See "Explanation of Responses"
Buy
4,064
$5.14
$20.90K
WINMILL & CO. INC
21 Nov 2025
See "Explanation of Responses"
Buy
6,226
$5.09
$31.67K
WINMILL & CO. INC
20 Nov 2025
See "Explanation of Responses"
Buy
5,870
$5.08
$29.84K
WINMILL & CO. INC
19 Nov 2025
See "Explanation of Responses"
Buy
6,226
$5.13
$31.97K
WINMILL & CO. INC
18 Nov 2025
See "Explanation of Responses"
Buy
5,618
$5.16
$28.98K
WINMILL & CO. INC
17 Nov 2025
See "Explanation of Responses"
Buy
6,226
$5.12
$31.91K
WINMILL & CO. INC
14 Nov 2025
See "Explanation of Responses"
Buy
7,035
$5.09
$35.84K
WINMILL & CO. INC
13 Nov 2025
See "Explanation of Responses"
Buy
6,694
$5.03
$33.65K
WINMILL & CO. INC
12 Nov 2025
See "Explanation of Responses"
Buy
6,055
$5.03
$30.44K
WINMILL & CO. INC
11 Nov 2025
See "Explanation of Responses"
Buy
2,069
$4.97
$10.28K

What was left out

Form 4 filings counted 30
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 0
Transactions with no price 0
Shares from compensation/vesting 56,842
History held since 21 Nov 2016