Global Self Storage, Inc.
SELF- Exchange
- Nasdaq
- Industry
- Real Estate Investment Trusts
- SEC CIK
- 0001031235
In the last 90 days, Global Self Storage, Inc. insiders filed 8 open-market purchases and 0 sales; 51 institutions reported holding it in 13F filings for Q2 2026, worth $17.5M in total; no superinvestor holds it.
Key figures
- Insider buysLast 90 days, $465.8K in total
- 8
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, −3 vs. previous quarter
- 51
- 13F valueReported value at the end of Q2 2026
- $17.5M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding SELF, Q2 2026
No superinvestor reported holding SELF at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Global Self Storage, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 11, 2026 (view filing)4:29 PM ET | Sep 9-10 | 2 days | Winmill Mark CampbellPresident and CEO | PPurchase | +4.00K | $5.16 | +$20.6K | +1.1%372.6K after | 4 lots |
| Aug 26, 2026 (view filing)4:47 PM ET | Aug 25-26 | 1 day | Winmill & Co. IncOther: See "Explanation of Responses" | PPurchase | +15.3K | $5.65 | +$86.5K | +7.2%228.5K after | 2 lots |
| Aug 24, 2026 (view filing)4:03 PM ET | Aug 21-24 | 3 days | Winmill & Co. IncOther: See "Explanation of Responses" | PPurchase | +15.1K | $5.54 | +$83.9K | +7.6%213.2K after | 2 lots |
| Aug 20, 2026 (view filing)4:32 PM ET | Aug 19-20 | 1 day | Winmill & Co. IncOther: See "Explanation of Responses" | PPurchase | +13.8K | $5.41 | +$74.6K | +7.5%198.1K after | 2 lots |
| Aug 18, 2026 (view filing)4:16 PM ET | Aug 17-18 | 1 day | Winmill & Co. IncOther: See "Explanation of Responses" | PPurchase | +12.9K | $5.33 | +$68.4K | +7.5%184.3K after | 2 lots |
| Aug 14, 2026 (view filing)4:20 PM ET | Aug 13 | 1 day | Burke Russell E IIIDirector | PPurchase | +1.63K | $5.21 | +$8.46K | +4.2%40.0K after | |
| Aug 14, 2026 (view filing)4:19 PM ET | Aug 13-14 | 1 day | Winmill & Co. IncOther: See "Explanation of Responses" | PPurchase | +11.7K | $5.21 | +$60.8K | +7.3%171.4K after | 2 lots |
| Aug 12, 2026 (view filing)4:52 PM ET | Aug 11-12 | 1 day | Winmill & Co. IncOther: See "Explanation of Responses" | PPurchase | +12.1K | $5.16 | +$62.6K | +8.2%159.8K after | 2 lots |
| May 15, 2026 (view filing) | May 14 | 1 day | Winmill Mark CampbellPresident and CEO | PPurchase | +4.00K | $5.33 | +$21.3K | +1.1%368.6K after | |
| Dec 5, 2025 (view filing) | Dec 3-5 | 2 days | Winmill Mark CampbellPresident and CEO | PPurchase | +16.4K | $5.12 | +$84.0K | +5.1%339.2K after | 4 lots |
Top 10 13F holders, Q2 2026
The largest institutional positions in Global Self Storage, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Winmill & Co. Inc | 586,500 | $3.07M | 0.68% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 434,491 | $2.28M | 0.00% | +4,488+1.0% | Added |
| BlackRock, Inc. | 397,495 | $2.08M | 0.00% | +102,855+34.9% | Added |
| Marathon Capital Management | 260,784 | $1.37M | 0.28% | +1,157+0.4% | Added |
| Private Capital Management, LLC | 223,337 | $1.17M | 0.11% | +119,788+115.7% | Added |
| Renaissance Technologies LLC | 198,075 | $1.04M | 0.00% | −18,100−8.4% | Reduced |
| Geode Capital Management, LLC | 143,249 | $750.8K | 0.00% | −1,013−0.7% | Reduced |
| Wells Fargo & Company | 130,918 | $686.0K | 0.00% | −10.0% | Reduced |
| Morgan Stanley | 77,803 | $407.7K | 0.00% | +4,689+6.4% | Added |
| Kestra Advisory Services, LLC | 67,167 | $352.0K | 0.00% | +4,047+6.4% | Added |