Greedy Insider
SELF Insider Trades and Greediness Scores
Global Self Storage, Inc. (SELF) insider trades: since Nov 13, 2025, Greedy Insider recorded 48 open-market buys and 0 sales on Form 4 from 7 insiders. The strongest recent filing scored 96 (Strong).
Who bought and who sold
Across the last 48 scoreable Form 4 transactions in SELF, 48 were open-market purchases and 0 were sales. The table lists the most recent filings with each one's Greediness Score, so the structurally unusual trades are easy to spot first.
| Insider | Role | Type | Shares | Date | Score | ||
|---|---|---|---|---|---|---|---|
| WINMILL MARK CAMPBELL | President | Buy | 292.0 | 1506.72 | 2026-09-10 | 52 | View |
| WINMILL MARK CAMPBELL | President | Buy | 50.0 | 258.0 | 2026-09-10 | 51 | View |
| WINMILL MARK CAMPBELL | President | Buy | 1600.0 | 8256.0 | 2026-09-09 | 56 | View |
| WINMILL MARK CAMPBELL | President | Buy | 2058.0 | 10619.28 | 2026-09-09 | 58 | View |
| WINMILL & CO. INC | Insider | Buy | 7761.0 | 43757.293 | 2026-08-26 | 56 | View |
| WINMILL & CO. INC | Insider | Buy | 7547.0 | 42694.887 | 2026-08-25 | 55 | View |
| WINMILL & CO. INC | Insider | Buy | 8022.0 | 45045.938 | 2026-08-24 | 57 | View |
| WINMILL & CO. INC | Insider | Buy | 7117.0 | 38805.44 | 2026-08-21 | 54 | View |
| WINMILL & CO. INC | Insider | Buy | 6901.0 | 37416.53 | 2026-08-20 | 55 | View |
| WINMILL & CO. INC | Insider | Buy | 6877.0 | 37162.62 | 2026-08-19 | 55 | View |
The strongest recent filing
WINMILL MARK CAMPBELL (President) bought 12,672 shares of Global Self Storage, Inc. on Mar 24, 2026, a filing that scored 96 (Strong). It scored Strong because a senior insider was trading and several insiders moved the same way within a week. The score describes the filing, not future returns. This is not investment advice.
Cluster activity
A cluster buy is present: 6 insiders (BURKE RUSSELL E III, Zachary William Chester, Kamerman Russell, Klimoski Donald II) traded SELF the same direction within a 7-day window. Shared conviction is a stronger structural signal than a lone trade.
How this compares with Global Self Storage, Inc.'s own history
Open-market buys make up 100% of the 48 scoreable SELF transactions on record between Nov 13, 2025 and Sep 10, 2026. Comparing a filing with the company's own buy/sell mix is how you tell a routine disposal from an unusual accumulation.
Methodology and sources
Scores come from six published, user-adjustable factors (insider role, cluster activity, trade size versus the insider's own history, position impact, filing urgency, and direct versus indirect ownership). The score describes the filing, not future returns. This is not investment advice.
Key facts
- Scoreable Form 4 transactions on record: 48
- Open-market buys: 48
- Sales: 0
- Distinct insiders: 7
- Strongest recent Greediness Score: 96 (Strong)
Primary sources
Related
- Strongest filing
- SELF in the live feed
- How the Greediness Score works
- What is a cluster buy?
- Form 4 transaction codes
The score describes the filing, not future returns. This is not investment advice.