WINMILL MARK CAMPBELL — SEC Form 4 filings
SEC reporting owner CIK 1019264. 8 Form 4 filings on record with FilingPulse; latest filed 2026-09-11.
Transaction summary — filings shown
Covers all 8 filings on record, filed 2024-03-26 to 2026-09-11. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 15 legs across 5 filings — 57,299 shares, $296,226 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 7.
- Largest priced transaction: purchase of 20,000 shares @ $4.97 ($99,374) in Global Self Storage, Inc., filed 2024-05-30.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Global Self Storage, Inc. (SELF) | President and CEO, Director | 8 | 15 legs · 57,299 sh · $296,226 | — | 7 |
Form 4 filings — WINMILL MARK CAMPBELL
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-11 | 4 | Global Self Storage, Inc. (SELF) | Purchase (P): 1,600 @ $5.16 · Purchase (P): 2,058 @ $5.16 · Purchase (P): 50 @ $5.16 · Purchase (P): 292 @ $5.16 | EDGAR |
| 2026-05-15 | 4 | Global Self Storage, Inc. (SELF) | Purchase (P): 4,000 @ $5.33 | EDGAR |
| 2026-03-25 | 4 | Global Self Storage, Inc. (SELF) | Grant/award (A): 12,672 @ $5.08 · Grant/award (A): 12,672 @ $5.10 | EDGAR |
| 2025-12-05 | 4 | Global Self Storage, Inc. (SELF) | Purchase (P): 6,000 @ $5.13 · Purchase (P): 6,000 @ $5.14 · Purchase (P): 800 @ $5.05 · Purchase (P): 3,600 @ $5.09 | EDGAR |
| 2025-05-20 | 4 | Global Self Storage, Inc. (SELF) | Purchase (P): 10,000 @ $5.67 | EDGAR |
| 2025-03-26 | 4 | Global Self Storage, Inc. (SELF) | Grant/award (A): 12,672 @ $5.08 · Grant/award (A): 12,672 @ $4.32 | EDGAR |
| 2024-05-30 | 4 | Global Self Storage, Inc. (SELF) | Purchase (P): 2,400 @ $4.90 · Purchase (P): 24 @ $4.91 · Purchase (P): 375 @ $4.91 · Purchase (P): 100 @ $4.90 · Purchase (P): 20,000 @ $4.97 | EDGAR |
| 2024-03-26 | 4 | Global Self Storage, Inc. (SELF) | Grant/award (A): 12,672 @ $4.32 · Grant/award (A): 3,467 @ $4.32 · Grant/award (A): 38,054 @ $4.32 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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