Who
Mark Campbell Winmill
President and CEO
Company insider
Files Form 4 as: President and CEO, Global Self Storage; 10% owner, Bexil; President, Tuxis.
In numbers
- Trades disclosed
- 115
- Buys
- 40
- Sells
- 3
- Bought
- $774K
- Sold
- $75K
- Companies
- 3
- Companies where not an officer
- 1
- First trade
- 17 Mar 2006
- Last trade
- 10 Sep 2026
- Last filed
- 11 Sep 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 10 Sep 2026filed 11 Sep 2026 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $25850 at $5.16 | filing |
| 10 Sep 2026filed 11 Sep 2026 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $1,507292 at $5.16 | filing |
| 10 Sep 2026filed 11 Sep 2026 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $25850 at $5.16 | filing |
| 10 Sep 2026filed 11 Sep 2026 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $1,507292 at $5.16 | filing |
| 9 Sep 2026filed 11 Sep 2026 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $8,2561,600 at $5.16 | filing |
| 9 Sep 2026filed 11 Sep 2026 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $11K2,058 at $5.16 | filing |
| 9 Sep 2026filed 11 Sep 2026 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $8,2561,600 at $5.16 | filing |
| 9 Sep 2026filed 11 Sep 2026 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $11K2,058 at $5.16 | filing |
| 14 May 2026filed 15 May 2026 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $21K4,000 at $5.33 | filing |
| 14 May 2026filed 15 May 2026 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $21K4,000 at $5.33 | filing |
| 24 Mar 2026filed 25 Mar 2026 | SELF Global Self StorageREITs | SEC FORM 4 Code A | $64K12,672 at $5.08 | filing |
| 24 Mar 2026filed 25 Mar 2026 | SELF Global Self StorageREITs | SEC FORM 4 Code A | $65K12,672 at $5.10 | filing |
| 24 Mar 2026filed 25 Mar 2026 | SELF Global Self StorageREITs | SEC FORM 4 Code A | $64K12,672 at $5.08 | filing |
| 24 Mar 2026filed 25 Mar 2026 | SELF Global Self StorageREITs | SEC FORM 4 Code A | $65K12,672 at $5.10 | filing |
| 5 Dec 2025filed 5 Dec 2025 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $4,040800 at $5.05 | filing |
| 5 Dec 2025filed 5 Dec 2025 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $18K3,600 at $5.09 | filing |
| 4 Dec 2025filed 5 Dec 2025 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $31K6,000 at $5.14 | filing |
| 3 Dec 2025filed 5 Dec 2025 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $31K6,000 at $5.13 | filing |
| 19 May 2025filed 20 May 2025 | SELF Global Self StorageREITs | SEC FORM 4 Bought | $57K10,000 at $5.67 | filing |
| 25 Mar 2025filed 26 Mar 2025 | SELF Global Self StorageREITs | SEC FORM 4 Code A | $64K12,672 at $5.08 | filing |
News
Global Self Storage (NASDAQ:SELF) & American Tower (NYSE:AMT) Head to Head ContrastSELF · themarketsdaily.com · 22 Oct 2026Head to Head Contrast: Global Self Storage (NASDAQ:SELF) & VICI Properties (NYSE:VICI)SELF · tickerreport.com · 18 Oct 2026Global Self Storage (NASDAQ:SELF) & VICI Properties (NYSE:VICI) Head-To-Head ContrastSELF · dailypolitical.com · 16 Oct 2026
0 headlines in the last 90 days name Mark Campbell Winmill; 3 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.