9 insiders reported 69 Form 4 transactions for Global Self Storage, Inc. (SELF) over the past 18 months (most recent 2026-08-20). Recent activity: WINMILL & CO. INC (Insider) Buy 6,901 shares, WINMILL & CO. INC (Insider) Buy 6,877 shares, WINMILL & CO. INC (Insider) Buy 7,117 shares, WINMILL & CO. INC (Insider) Buy 5,736 shares, BURKE RUSSELL E III (Director) Buy 1,625 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | WINMILL & CO. INC | Insider | Buy | 6,901 | $37,417 |
| 2026-08-20 | WINMILL & CO. INC | Insider | Buy | 6,877 | $37,163 |
| 2026-08-18 | WINMILL & CO. INC | Insider | Buy | 7,117 | $37,936 |
| 2026-08-18 | WINMILL & CO. INC | Insider | Buy | 5,736 | $30,507 |
| 2026-08-14 | BURKE RUSSELL E III | Director | Buy | 1,625 | $8,459 |
| 2026-08-14 | WINMILL & CO. INC | Insider | Buy | 5,629 | $29,277 |
| 2026-08-14 | WINMILL & CO. INC | Insider | Buy | 6,029 | $31,511 |
| 2026-08-13 | BURKE RUSSELL E III | Director | Buy | 196 | $1,000 |
| 2026-08-13 | Zachary William Chester | Director | Buy | 196 | $1,000 |
| 2026-08-12 | WINMILL & CO. INC | Insider | Buy | 5,887 | $30,409 |
| 2026-08-12 | WINMILL & CO. INC | Insider | Buy | 6,248 | $32,192 |
| 2026-05-15 | WINMILL MARK CAMPBELL | President and CEO | Buy | 4,000 | $21,320 |
| 2026-05-14 | Zachary William Chester | Director | Buy | 94 | $499 |
| 2026-05-14 | BURKE RUSSELL E III | Director | Buy | 94 | $499 |
| 2026-03-25 | WINMILL MARK CAMPBELL | President and CEO | Buy | 12,672 | $64,374 |
| 2026-03-25 | WINMILL MARK CAMPBELL | President and CEO | Buy | 12,672 | $64,627 |
| 2026-03-25 | OMalley Thomas | Chief Financial Officer | Buy | 5,527 | $28,077 |
| 2026-03-25 | OMalley Thomas | Chief Financial Officer | Buy | 5,527 | $28,188 |
| 2026-03-25 | Klimoski Donald II | General Counsel | Buy | 5,527 | $28,077 |
| 2026-03-25 | Kamerman Russell | Assistant General Counsel | Buy | 500 | $2,550 |
| 2026-03-25 | Klimoski Donald II | General Counsel | Buy | 5,527 | $28,188 |
| 2025-12-05 | WINMILL MARK CAMPBELL | President and CEO | Buy | 3,600 | $18,324 |
| 2025-12-05 | WINMILL MARK CAMPBELL | President and CEO | Buy | 6,000 | $30,780 |
| 2025-12-05 | WINMILL MARK CAMPBELL | President and CEO | Buy | 6,000 | $30,840 |
| 2025-12-05 | WINMILL MARK CAMPBELL | President and CEO | Buy | 800 | $4,040 |
Source: SEC Form 4 filings · as of 2026-08-20