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Company

Global Self Storage, Inc.

SELF · CIK 0001031235

SEC FORM 4
$258.00

Global Self Storage, Inc. (SELF)

Purchase of 50 shares at $5.16 per share.

Reporting Person WINMILL MARK CAMPBELL · Officer Title President and CEO · Transaction Code P

Traded Sep 10, 2026 · Disclosed Sep 11, 2026

Source: SEC Form 4 · 0001628873-26-000095 · filed 2026-09-11 · View filing →

SEC FORM 4
$1,506.72

Global Self Storage, Inc. (SELF)

Purchase of 292 shares at $5.16 per share.

Reporting Person WINMILL MARK CAMPBELL · Officer Title President and CEO · Transaction Code P

Traded Sep 10, 2026 · Disclosed Sep 11, 2026

Source: SEC Form 4 · 0001628873-26-000095 · filed 2026-09-11 · View filing →

SEC FORM 4
$8,256.00

Global Self Storage, Inc. (SELF)

Purchase of 1,600 shares at $5.16 per share.

Reporting Person WINMILL MARK CAMPBELL · Officer Title President and CEO · Transaction Code P

Traded Sep 9, 2026 · Disclosed Sep 11, 2026

Source: SEC Form 4 · 0001628873-26-000095 · filed 2026-09-11 · View filing →

SEC FORM 4
$10,619.28

Global Self Storage, Inc. (SELF)

Purchase of 2,058 shares at $5.16 per share.

Reporting Person WINMILL MARK CAMPBELL · Officer Title President and CEO · Transaction Code P

Traded Sep 9, 2026 · Disclosed Sep 11, 2026

Source: SEC Form 4 · 0001628873-26-000095 · filed 2026-09-11 · View filing →

SEC FORM 4
$43,757.29

Global Self Storage, Inc. (SELF)

Purchase of 7,761 shares at $5.6381 per share.

Reporting Person WINMILL & CO. INC · Transaction Code P

Traded Aug 26, 2026 · Disclosed Aug 26, 2026

Source: SEC Form 4 · 0001628873-26-000085 · filed 2026-08-26 · View filing →

SEC FORM 4
$42,694.89

Global Self Storage, Inc. (SELF)

Purchase of 7,547 shares at $5.6572 per share.

Reporting Person WINMILL & CO. INC · Transaction Code P

Traded Aug 25, 2026 · Disclosed Aug 26, 2026

Source: SEC Form 4 · 0001628873-26-000085 · filed 2026-08-26 · View filing →

SEC FORM 4
$45,045.94

Global Self Storage, Inc. (SELF)

Purchase of 8,022 shares at $5.6153 per share.

Reporting Person WINMILL & CO. INC · Transaction Code P

Traded Aug 24, 2026 · Disclosed Aug 24, 2026

Source: SEC Form 4 · 0001628873-26-000079 · filed 2026-08-24 · View filing →

SEC FORM 4
$38,805.44

Global Self Storage, Inc. (SELF)

Purchase of 7,117 shares at $5.4525 per share.

Reporting Person WINMILL & CO. INC · Transaction Code P

Traded Aug 21, 2026 · Disclosed Aug 24, 2026

Source: SEC Form 4 · 0001628873-26-000079 · filed 2026-08-24 · View filing →

SEC FORM 4
$37,416.53

Global Self Storage, Inc. (SELF)

Purchase of 6,901 shares at $5.4219 per share.

Reporting Person WINMILL & CO. INC · Transaction Code P

Traded Aug 20, 2026 · Disclosed Aug 20, 2026

Source: SEC Form 4 · 0001628873-26-000077 · filed 2026-08-20 · View filing →

SEC FORM 4
$37,162.62

Global Self Storage, Inc. (SELF)

Purchase of 6,877 shares at $5.4039 per share.

Reporting Person WINMILL & CO. INC · Transaction Code P

Traded Aug 19, 2026 · Disclosed Aug 20, 2026

Source: SEC Form 4 · 0001628873-26-000077 · filed 2026-08-20 · View filing →

SEC FORM 4
$30,506.92

Global Self Storage, Inc. (SELF)

Purchase of 5,736 shares at $5.3185 per share.

Reporting Person WINMILL & CO. INC · Transaction Code P

Traded Aug 18, 2026 · Disclosed Aug 18, 2026

Source: SEC Form 4 · 0001628873-26-000074 · filed 2026-08-18 · View filing →

SEC FORM 4CLUSTER · 2 INSIDERS
$169,783.75

Global Self Storage, Inc. (SELF)

Purchase of 32,535 shares across 2 reporting persons.

Transaction Code P · Reporting Persons 2

  • WINMILL & CO. INCPurchase of 5,887 shares at $5.1655 per share.$30,409.30
  • WINMILL & CO. INCPurchase of 6,248 shares at $5.1524 per share.$32,192.20
  • WINMILL & CO. INCPurchase of 5,629 shares at $5.2011 per share.$29,276.99
  • BURKE RUSSELL E IIIPurchase of 1,625 shares at $5.2055 per share.$8,458.94
  • WINMILL & CO. INCPurchase of 6,029 shares at $5.2265 per share.$31,510.57
  • WINMILL & CO. INCPurchase of 7,117 shares at $5.3303 per share.$37,935.75

Surfaced by rule: 2 distinct insiders, open-market purchases, 7-day window — a deterministic filter, not a recommendation.

Traded Aug 11, 2026 · Disclosed Aug 18, 2026FILED +7 DAYS

Source: SEC Form 4 · 0001628873-26-000064 · filed 2026-08-12 · View filing →

Source: SEC Form 4 · 0001628873-26-000070 · filed 2026-08-14 · View filing →

Source: SEC Form 4 · 0001628873-26-000072 · filed 2026-08-14 · View filing →

Source: SEC Form 4 · 0001628873-26-000074 · filed 2026-08-18 · View filing →

SEC FORM 4
$999.60

Global Self Storage, Inc. (SELF)

Acquisition (code A) of 196 shares at $5.10 per share.

Reporting Person BURKE RUSSELL E III · Transaction Code A

Traded Aug 11, 2026 · Disclosed Aug 13, 2026

Source: SEC Form 4 · 0001628873-26-000066 · filed 2026-08-13 · View filing →

SEC FORM 4
$999.60

Global Self Storage, Inc. (SELF)

Acquisition (code A) of 196 shares at $5.10 per share.

Reporting Person Zachary William Chester · Transaction Code A

Traded Aug 11, 2026 · Disclosed Aug 13, 2026

Source: SEC Form 4 · 0001628873-26-000068 · filed 2026-08-13 · View filing →