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United States Residential & Commercial REITs

Global Self Storage Inc (SELF)

Track

Over the last 90 days, insider trading activity at Global Self Storage Inc. has been characterized by a net buy of $21,320.00, solely from executive transactions. A total of 1 insider transaction was recorded, with President and CEO Mark Campbell making a purchase. The company's stock has seen a modest 2.2% increase over the past 90 days.
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Ticker: SELF Exchange: NAS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
WINMILL MARK CAMPBELL
President and CEO
1 purchase — total 21,320 USD
Buy 14 May 2026
Value US$4,590,274.55 | Price 264.01 | Shares 47,441
Buy 5 Dec 2025
Value US$4,365,671.83 | Price 324.19 | Shares 53,826
Buy 5 Dec 2025
Value US$1,435,459.89 | Price 261.67 | Shares 4,697
Buy 4 Dec 2025
Value US$30,849.00 | Price 5.14 | Shares 6,000
Buy 3 Dec 2025
Value US$30,770.40 | Price 5.13 | Shares 6,000
Buy 2 Dec 2025
Value US$2,252.30 | Price 5.05 | Shares 446
Buy 1 Dec 2025
Value US$15,853.20 | Price 5.18 | Shares 3,062
Buy 28 Nov 2025
Value US$17,228.68 | Price 5.16 | Shares 3,342
Buy 26 Nov 2025
Value US$25,174.89 | Price 5.17 | Shares 4,873
Buy 25 Nov 2025
Value US$23,566.65 | Price 5.18 | Shares 4,547
Buy 24 Nov 2025
Value US$20,904.00 | Price 5.14 | Shares 4,064
Buy 21 Nov 2025
Value US$31,672.91 | Price 5.09 | Shares 6,226
Buy 20 Nov 2025
Value US$29,841.91 | Price 5.08 | Shares 5,870
Buy 19 Nov 2025
Value US$31,969.89 | Price 5.13 | Shares 6,226
Buy 18 Nov 2025
Value US$28,976.52 | Price 5.16 | Shares 5,618
Buy 17 Nov 2025
Value US$31,905.76 | Price 5.12 | Shares 6,226
Buy 14 Nov 2025
Value US$35,838.40 | Price 5.09 | Shares 7,035
Buy 13 Nov 2025
Value US$33,645.38 | Price 5.03 | Shares 6,694
Buy 12 Nov 2025
Value US$30,438.48 | Price 5.03 | Shares 6,055
Buy 11 Nov 2025
Value US$10,282.52 | Price 4.97 | Shares 2,069
Buy 29 Aug 2025
Value US$25,150.38 | Price 5.48 | Shares 4,592
Buy 28 Aug 2025
Value US$39,092.97 | Price 5.42 | Shares 7,209
Buy 27 Aug 2025
Value US$29,344.67 | Price 5.36 | Shares 5,477
Buy 26 Aug 2025
Value US$40,973.45 | Price 5.26 | Shares 7,788
Buy 25 Aug 2025
Value US$550.72 | Price 5.25 | Shares 105
Buy 25 Aug 2025
Value US$40,834.50 | Price 5.22 | Shares 7,823
Buy 22 Aug 2025
Value US$11,122.49 | Price 5.15 | Shares 2,160
Buy 21 Aug 2025
Value US$2,570.24 | Price 5.12 | Shares 502
Buy 21 May 2025
Value US$9,998.70 | Price 5.63 | Shares 1,776
Buy 19 May 2025
Value US$56,700.00 | Price 5.67 | Shares 10,000
Buy 16 May 2025
Value US$50,158.08 | Price 5.22 | Shares 9,600
Buy 15 May 2025
Value US$50,413.44 | Price 5.21 | Shares 9,680
Buy 21 Nov 2024
Value US$882.84 | Price 5.26 | Shares 168
Buy 30 Aug 2024
Value US$9,572.35 | Price 5.21 | Shares 1,836
Buy 29 Aug 2024
Value US$4,184.00 | Price 5.23 | Shares 800
Buy 27 Aug 2024
Value US$691.60 | Price 5.20 | Shares 133
Buy 27 Aug 2024
Value US$15,392.65 | Price 5.19 | Shares 2,966
Buy 26 Aug 2024
Value US$8,424.38 | Price 5.16 | Shares 1,632
Buy 23 Aug 2024
Value US$9,050.31 | Price 5.19 | Shares 1,744
Buy 22 Aug 2024
Value US$36,179.43 | Price 5.20 | Shares 6,962
Buy 21 Aug 2024
Value US$12,923.38 | Price 5.12 | Shares 2,524
Buy 20 Aug 2024
Value US$24,453.51 | Price 5.09 | Shares 4,803
Buy 19 Aug 2024
Value US$21,038.76 | Price 5.02 | Shares 4,195
Buy 16 Aug 2024
Value US$16,800.77 | Price 5.09 | Shares 3,301
Buy 15 Aug 2024
Value US$11,462.97 | Price 4.98 | Shares 2,300
Buy 14 Aug 2024
Value US$9,424.00 | Price 4.96 | Shares 1,900
Buy 30 May 2024
Value US$1,010.94 | Price 4.98 | Shares 203
Buy 30 May 2024
Value US$99,374.00 | Price 4.97 | Shares 20,000
Buy 28 May 2024
Value US$490.00 | Price 4.90 | Shares 100
Buy 28 May 2024
Value US$1,841.25 | Price 4.91 | Shares 375
Buy 28 May 2024
Value US$117.84 | Price 4.91 | Shares 24
Buy 28 May 2024
Value US$11,759.76 | Price 4.90 | Shares 2,400
Buy 24 May 2024
Value US$2,594.74 | Price 4.91 | Shares 529
Buy 24 May 2024
Value US$48.60 | Price 4.86 | Shares 10
Sale 30 Nov 2023
Value US$34,341.75 | Price 4.58 | Shares 7,500
Sale 29 Nov 2023
Value US$34,655.25 | Price 4.62 | Shares 7,500
Buy 17 Nov 2023
Value US$4,800.00 | Price 4.80 | Shares 1,000
Buy 16 Nov 2023
Value US$4,835.20 | Price 4.84 | Shares 1,000
Buy 16 Nov 2023
Value US$4,810.00 | Price 4.81 | Shares 1,000
Buy 16 Nov 2023
Value US$9,734.20 | Price 4.87 | Shares 2,000
Buy 16 Nov 2023
Value US$7,267.91 | Price 4.81 | Shares 1,511
Buy 16 Nov 2023
Value US$2,352.09 | Price 4.81 | Shares 489
Buy 16 Nov 2023
Value US$5,788.32 | Price 4.82 | Shares 1,200
Buy 17 Aug 2023
Value US$10,139.80 | Price 5.07 | Shares 2,000
Buy 17 Aug 2023
Value US$5,070.00 | Price 5.07 | Shares 1,000
Buy 15 May 2023
Value US$9,231.12 | Price 5.13 | Shares 1,800
Buy 15 May 2023
Value US$7,650.00 | Price 5.10 | Shares 1,500
Buy 15 May 2023
Value US$6,695.00 | Price 5.15 | Shares 1,300
Buy 15 May 2023
Value US$1,026.00 | Price 5.13 | Shares 200
Buy 15 May 2023
Value US$3,373.25 | Price 5.15 | Shares 655
Buy 15 May 2023
Value US$513.00 | Price 5.13 | Shares 100
Buy 15 May 2023
Value US$3,799.50 | Price 5.10 | Shares 745
Buy 15 May 2023
Value US$7,650.00 | Price 5.10 | Shares 1,500
Buy 15 May 2023
Value US$2,336.80 | Price 5.08 | Shares 460
Buy 12 May 2023
Value US$508.00 | Price 5.08 | Shares 100
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-15 2026-05-14 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
47,441 +43.0%
264.01
US$4,590,275 		47,441 +43.0% 264.01 US$4,590,275
2025-12-05 2025-12-05 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
53,826 +11.5%
324.19
US$4,365,672 		53,826 +11.5% 324.19 US$4,365,672
2025-12-05 2025-12-05 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
4,697 +12.8%
261.67
US$1,435,460 		4,697 +12.8% 261.67 US$1,435,460
2025-12-05 2025-12-04 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
6,000 +1.8%
5.14
US$30,849 		6,000 +1.8% 5.14 US$30,849
2025-12-05 2025-12-03 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
6,000 +1.9%
5.13
US$30,770 		6,000 +1.9% 5.13 US$30,770
2025-12-02 2025-12-02 B Purchase
3.6
Klimoski Donald II

General Counsel

Officer
446 +0.5%
5.05
US$2,252 		446 +0.5% 5.05 US$2,252
2025-12-01 2025-12-01 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
3,062 +2.1%
5.18
US$15,853 		3,062 +2.1% 5.18 US$15,853
2025-12-01 2025-11-28 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
3,342 +2.4%
5.16
US$17,229 		3,342 +2.4% 5.16 US$17,229
2025-11-26 2025-11-26 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
4,873 +3.6%
5.17
US$25,175 		4,873 +3.6% 5.17 US$25,175
2025-11-26 2025-11-25 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
4,547 +3.4%
5.18
US$23,567 		4,547 +3.4% 5.18 US$23,567
2025-11-24 2025-11-24 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
4,064 +3.2%
5.14
US$20,904 		4,064 +3.2% 5.14 US$20,904
2025-11-24 2025-11-21 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
6,226 +5.1%
5.09
US$31,673 		6,226 +5.1% 5.09 US$31,673
2025-11-20 2025-11-20 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
5,870 +5.1%
5.08
US$29,842 		5,870 +5.1% 5.08 US$29,842
2025-11-20 2025-11-19 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
6,226 +5.7%
5.13
US$31,970 		6,226 +5.7% 5.13 US$31,970
2025-11-18 2025-11-18 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
5,618 +5.4%
5.16
US$28,977 		5,618 +5.4% 5.16 US$28,977
2025-11-18 2025-11-17 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
6,226 +6.4%
5.12
US$31,906 		6,226 +6.4% 5.12 US$31,906
2025-11-14 2025-11-14 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
7,035 +7.8%
5.09
US$35,838 		7,035 +7.8% 5.09 US$35,838
2025-11-14 2025-11-13 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
6,694 +8.0%
5.03
US$33,645 		6,694 +8.0% 5.03 US$33,645
2025-11-12 2025-11-12 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
6,055 +7.8%
5.03
US$30,438 		6,055 +7.8% 5.03 US$30,438
2025-11-12 2025-11-11 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
2,069 +2.7%
4.97
US$10,283 		2,069 +2.7% 4.97 US$10,283
2025-08-29 2025-08-29 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
4,592 +6.5%
5.48
US$25,150 		4,592 +6.5% 5.48 US$25,150
2025-08-28 2025-08-28 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
7,209 +11.3%
5.42
US$39,093 		7,209 +11.3% 5.42 US$39,093
2025-08-28 2025-08-27 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
5,477 +9.4%
5.36
US$29,345 		5,477 +9.4% 5.36 US$29,345
2025-08-26 2025-08-26 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
7,788 +15.4%
5.26
US$40,973 		7,788 +15.4% 5.26 US$40,973
2025-08-26 2025-08-25 B Purchase
2.6
BURKE RUSSELL E III
Non-Executive Director
105 +0.3%
5.25
US$551 		105 +0.3% 5.25 US$551
2025-08-26 2025-08-25 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
7,823 +18.3%
5.22
US$40,834 		7,823 +18.3% 5.22 US$40,834
2025-08-22 2025-08-22 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
2,160 +5.3%
5.15
US$11,122 		2,160 +5.3% 5.15 US$11,122
2025-08-22 2025-08-21 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
502 +1.2%
5.12
US$2,570 		502 +1.2% 5.12 US$2,570
2025-05-22 2025-05-21 B Purchase
1.8
Carroll Sally Coonrad
Non-Executive Director
1,776 +88.8%
5.63
US$9,999 		1,776 +88.8% 5.63 US$9,999
2025-05-20 2025-05-19 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
10,000 +3.2%
5.67
US$56,700 		10,000 +3.2% 5.67 US$56,700
2025-05-19 2025-05-16 B Purchase
2.8
TUXIS CORP

See "Explanation of Responses"
9,600 +3.3%
5.22
US$50,158 		9,600 +3.3% 5.22 US$50,158
2025-05-19 2025-05-15 B Purchase
2.8
TUXIS CORP

See "Explanation of Responses"
9,680 +3.4%
5.21
US$50,413 		9,680 +3.4% 5.21 US$50,413
2024-11-22 2024-11-21 B Purchase
2.6
BURKE RUSSELL E III
Non-Executive Director
168 +0.5%
5.26
US$883 		168 +0.5% 5.26 US$883
2024-08-30 2024-08-30 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
1,836 +4.8%
5.21
US$9,572 		1,836 +4.8% 5.21 US$9,572
2024-08-30 2024-08-29 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
800 +2.1%
5.23
US$4,184 		800 +2.1% 5.23 US$4,184
2024-08-27 2024-08-27 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
133 +0.4%
5.20
US$692 		133 +0.4% 5.20 US$692
2024-08-27 2024-08-27 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
2,966 +8.6%
5.19
US$15,393 		2,966 +8.6% 5.19 US$15,393
2024-08-27 2024-08-26 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
1,632 +5.0%
5.16
US$8,424 		1,632 +5.0% 5.16 US$8,424
2024-08-23 2024-08-23 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
1,744 +5.6%
5.19
US$9,050 		1,744 +5.6% 5.19 US$9,050
2024-08-23 2024-08-22 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
6,962 +28.9%
5.20
US$36,179 		6,962 +28.9% 5.20 US$36,179
2024-08-21 2024-08-21 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
2,524 +11.7%
5.12
US$12,923 		2,524 +11.7% 5.12 US$12,923
2024-08-21 2024-08-20 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
4,803 +28.6%
5.09
US$24,454 		4,803 +28.6% 5.09 US$24,454
2024-08-19 2024-08-19 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
4,195 +33.3%
5.02
US$21,039 		4,195 +33.3% 5.02 US$21,039
2024-08-19 2024-08-16 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
3,301 +35.5%
5.09
US$16,801 		3,301 +35.5% 5.09 US$16,801
2024-08-15 2024-08-15 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
2,300 +32.9%
4.98
US$11,463 		2,300 +32.9% 4.98 US$11,463
2024-08-15 2024-08-14 B Purchase
3.3
WINMILL & CO. INC

See "Explanation of Responses"
1,900 +37.4%
4.96
US$9,424 		1,900 +37.4% 4.96 US$9,424
2024-05-31 2024-05-30 B Purchase
2.6
BURKE RUSSELL E III
Non-Executive Director
203 +0.7%
4.98
US$1,011 		203 +0.7% 4.98 US$1,011
2024-05-30 2024-05-30 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
20,000 +7.5%
4.97
US$99,374 		20,000 +7.5% 4.97 US$99,374
2024-05-30 2024-05-28 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
100 +0.0%
4.90
US$490 		100 +0.0% 4.90 US$490
2024-05-30 2024-05-28 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
375 +0.1%
4.91
US$1,841 		375 +0.1% 4.91 US$1,841
2024-05-30 2024-05-28 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
24 +0.0%
4.91
US$118 		24 +0.0% 4.91 US$118
2024-05-30 2024-05-28 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
2,400 +0.9%
4.90
US$11,760 		2,400 +0.9% 4.90 US$11,760
2024-05-24 2024-05-24 B Purchase
3.6
Klimoski Donald II

General Counsel

Officer
529 +0.7%
4.91
US$2,595 		529 +0.7% 4.91 US$2,595
2024-05-24 2024-05-24 B Purchase
3.6
Klimoski Donald II

General Counsel

Officer
10 +0.0%
4.86
US$49 		10 +0.0% 4.86 US$49
2023-12-01 2023-11-30 S Sale
2.8
TUXIS CORP

See "Explanation of Responses"
7,500 -2.6%
4.58
US$34,342 		7,500 -2.6% 4.58 US$34,342
2023-12-01 2023-11-29 S Sale
2.8
TUXIS CORP

See "Explanation of Responses"
7,500 -2.5%
4.62
US$34,655 		7,500 -2.5% 4.62 US$34,655
2023-11-17 2023-11-17 B Purchase
3.6
Klimoski Donald II

General Counsel

Officer
1,000 +2.0%
4.80
US$4,800 		1,000 +2.0% 4.80 US$4,800
2023-11-17 2023-11-16 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
1,000 +0.5%
4.84
US$4,835 		1,000 +0.5% 4.84 US$4,835
2023-11-17 2023-11-16 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
1,000 +0.5%
4.81
US$4,810 		1,000 +0.5% 4.81 US$4,810
2023-11-17 2023-11-16 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
2,000 +1.0%
4.87
US$9,734 		2,000 +1.0% 4.87 US$9,734
2023-11-17 2023-11-16 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
1,511 +0.7%
4.81
US$7,268 		1,511 +0.7% 4.81 US$7,268
2023-11-17 2023-11-16 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
489 +0.2%
4.81
US$2,352 		489 +0.2% 4.81 US$2,352
2023-11-17 2023-11-16 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
1,200 +0.6%
4.82
US$5,788 		1,200 +0.6% 4.82 US$5,788
2023-08-18 2023-08-17 B Purchase
1.8
Carroll Sally Coonrad
Non-Executive Director
2,000 +inf%
5.07
US$10,140 		2,000 +inf% 5.07 US$10,140
2023-08-18 2023-08-17 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
1,000 +0.5%
5.07
US$5,070 		1,000 +0.5% 5.07 US$5,070
2023-05-16 2023-05-15 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
1,800 +0.9%
5.13
US$9,231 		1,800 +0.9% 5.13 US$9,231
2023-05-16 2023-05-15 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
1,500 +0.8%
5.10
US$7,650 		1,500 +0.8% 5.10 US$7,650
2023-05-16 2023-05-15 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
1,300 +0.7%
5.15
US$6,695 		1,300 +0.7% 5.15 US$6,695
2023-05-16 2023-05-15 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
200 +0.1%
5.13
US$1,026 		200 +0.1% 5.13 US$1,026
2023-05-16 2023-05-15 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
655 +0.3%
5.15
US$3,373 		655 +0.3% 5.15 US$3,373
2023-05-16 2023-05-15 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
100 +0.1%
5.13
US$513 		100 +0.1% 5.13 US$513
2023-05-16 2023-05-15 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
745 +0.4%
5.10
US$3,800 		745 +0.4% 5.10 US$3,800
2023-05-16 2023-05-15 B Purchase
3.3
WINMILL MARK CAMPBELL

President and CEO

Executive Director
1,500 +0.8%
5.10
US$7,650 		1,500 +0.8% 5.10 US$7,650
2023-05-15 2023-05-15 B Purchase
3.6
Klimoski Donald II

General Counsel

Officer
460 +0.9%
5.08
US$2,337 		460 +0.9% 5.08 US$2,337
2023-05-15 2023-05-12 B Purchase
3.6
Klimoski Donald II

General Counsel

Officer
100 +0.2%
5.08
US$508 		100 +0.2% 5.08 US$508
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