The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Winmill Mark Campbell since 2016.
This trader's CIK number is 1019264.
At the time of last reporting, Winmill Mark Campbell was the President and CEO of Global Self Storage, Inc.. (stock ticker symbol SELF).
Also see all insider trading activities at Global Self Storage, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | SELF | 26,400 | $140,628 | 0 | $0 | 0 | $0 |
| 2024 | SELF | 22,899 | $113,599 | 0 | $0 | 0 | $0 |
| 2023 | SELF | 16,000 | $79,784 | 0 | $0 | 0 | $0 |
| 2022 | SELF | 14,300 | $83,555 | 0 | $0 | 0 | $0 |
| 2021 | SELF | 5,000 | $25,520 | 0 | $0 | 0 | $0 |
| 2020 | SELF | 20,550 | $80,581 | 0 | $0 | 0 | $0 |
| 2019 | SELF | 2,000 | $7,400 | 0 | $0 | 0 | $0 |
| 2018 | SELF | 1,400 | $5,850 | 0 | $0 | 0 | $0 |
| 2017 | SELF | 3,000 | $14,655 | 0 | $0 | 0 | $0 |
| 2016 | SELF | 10,219 | $49,956 | 0 | $0 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-12-03 | SELF | Buy | 6,000 | 5.13 | 30,768 |
| 2025-12-04 | SELF | Buy | 6,000 | 5.14 | 30,852 |
| 2025-12-05 | SELF | Buy | 4,400 | 5.07 | 22,308 |
| 2025-05-19 | SELF | Buy | 10,000 | 5.67 | 56,700 |
| 2024-05-28 | SELF | Buy | 2,899 | 4.91 | 14,219 |
| 2024-05-30 | SELF | Buy | 20,000 | 4.97 | 99,380 |
| 2023-11-16 | SELF | Buy | 7,200 | 4.83 | 34,747 |
| 2023-08-17 | SELF | Buy | 1,000 | 5.07 | 5,070 |
| 2023-05-15 | SELF | Buy | 7,800 | 5.12 | 39,967 |
| 2022-11-18 | SELF | Buy | 3,000 | 5.17 | 15,525 |
| 2022-08-23 | SELF | Buy | 4,800 | 6.07 | 29,136 |
| 2022-08-23 | SELF | Buy | 4,800 | 6.07 | 29,136 |
| 2022-05-20 | SELF | Buy | 1,700 | 5.74 | 9,758 |
| 2021-08-24 | SELF | Buy | 1,000 | 5.12 | 5,120 |
| 2021-08-20 | SELF | Buy | 4,000 | 5.10 | 20,400 |
| 2020-11-19 | SELF | Buy | 7,500 | 4.00 | 30,000 |
| 2020-11-20 | SELF | Buy | 2,500 | 4.00 | 9,995 |
| 2020-08-19 | SELF | Buy | 7,000 | 3.91 | 27,356 |
| 2020-05-20 | SELF | Buy | 3,550 | 3.73 | 13,230 |
| 2019-05-28 | SELF | Buy | 2,000 | 3.70 | 7,400 |
| 2018-05-18 | SELF | Buy | 1,400 | 4.18 | 5,850 |
| 2017-08-23 | SELF | Buy | 3,000 | 4.88 | 14,655 |
| 2016-11-30 | SELF | Buy | 1,000 | 5.00 | 5,000 |
| 2016-08-23 | SELF | Buy | 2,000 | 5.50 | 11,000 |
| 2016-05-26 | SELF | Buy | 190 | 4.83 | 917 |
| 2016-05-25 | SELF | Buy | 200 | 4.77 | 953 |
| 2016-05-23 | SELF | Buy | 1,000 | 4.69 | 4,690 |
| 2016-05-24 | SELF | Buy | 5,829 | 4.70 | 27,396 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Winmill Mark Campbell (President and CEO of Global Self Storage, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.