Winmill & Co. Inc Insider Trading Activity
Winmill & Co. Inc, an institutional filer, recorded 36 transactions over the last 12 months across 2 companies totaling $1.5M.
Activity concentrated in SELF with 21 filings. The largest single transaction was a purchase of BXSY for $136K on Jul 11, 2025.
Performance Scorecard
Forward stock performance after each transaction by Winmill & Co. Inc. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | -0.5% | — | 42% | 36 |
| 90 days | +2.6% | — | 50% | 36 |
| 120 days | +2.6% | — | 50% | 36 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | ROLE |
|---|---|---|---|---|---|---|
| Dec 1, 2025 | SELF | Buy | 3,062 | $5.18 | $16K | Other |
| Nov 28, 2025 | SELF | Buy | 3,342 | $5.16 | $17K | Other |
| Nov 26, 2025 | SELF | Buy | 4,873 | $5.17 | $25K | Other |
| Nov 25, 2025 | SELF | Buy | 4,547 | $5.18 | $24K | Other |
| Nov 24, 2025 | SELF | Buy | 4,064 | $5.14 | $21K | Other |
| Nov 21, 2025 | SELF | Buy | 6,226 | $5.09 | $32K | Other |
| Nov 20, 2025 | SELF | Buy | 5,870 | $5.08 | $30K | Other |
| Nov 19, 2025 | SELF | Buy | 6,226 | $5.13 | $32K | Other |
| Nov 18, 2025 | SELF | Buy | 5,618 | $5.16 | $29K | Other |
| Nov 17, 2025 | SELF | Buy | 6,226 | $5.12 | $32K | Other |
| Nov 14, 2025 | SELF | Buy | 7,035 | $5.09 | $36K | Other |
| Nov 13, 2025 | SELF | Buy | 6,694 | $5.03 | $34K | Other |
| Nov 12, 2025 | SELF | Buy | 6,055 | $5.03 | $30K | Other |
| Nov 11, 2025 | SELF | Buy | 2,069 | $4.97 | $10K | Other |
| Aug 29, 2025 | SELF | Buy | 4,592 | $5.48 | $25K | Other |
| Aug 28, 2025 | SELF | Buy | 7,209 | $5.42 | $39K | Other |
| Aug 27, 2025 | SELF | Buy | 5,477 | $5.36 | $29K | Other |
| Aug 26, 2025 | SELF | Buy | 7,788 | $5.26 | $41K | Other |
| Aug 25, 2025 | SELF | Buy | 7,823 | $5.22 | $41K | Other |
| Aug 22, 2025 | SELF | Buy | 2,160 | $5.15 | $11K | Other |
| Aug 21, 2025 | SELF | Buy | 502 | $5.12 | $3K | Other |
| Jul 30, 2025 | BXSY | Buy | 6,255 | $13.80 | $86K | Other |
| Jul 28, 2025 | BXSY | Buy | 9,500 | $13.87 | $132K | Other |
| Jul 25, 2025 | BXSY | Buy | 2,500 | $13.70 | $34K | Other |
| Jul 22, 2025 | BXSY | Buy | 1,312 | $13.57 | $18K | Other |
| Jul 21, 2025 | BXSY | Buy | 2,300 | $13.55 | $31K | Other |
| Jul 18, 2025 | BXSY | Buy | 277 | $13.53 | $4K | Other |
| Jul 17, 2025 | BXSY | Buy | 1,396 | $13.56 | $19K | Other |
| Jul 16, 2025 | BXSY | Buy | 10,000 | $13.53 | $135K | Other |
| Jul 15, 2025 | BXSY | Buy | 10,000 | $13.55 | $136K | Other |
| Jul 14, 2025 | BXSY | Buy | 2,982 | $13.58 | $40K | Other |
| Jul 11, 2025 | BXSY | Buy | 10,000 | $13.59 | $136K | Other |
| Jul 7, 2025 | BXSY | Buy | 3,600 | $13.59 | $49K | Other |
| Jul 2, 2025 | BXSY | Buy | 10,000 | $13.51 | $135K | Other |
| Jul 1, 2025 | BXSY | Buy | 2,216 | $13.31 | $29K | Other |
| Jun 30, 2025 | BXSY | Buy | 459 | $13.38 | $6K | Other |
Top Companies Traded
Other insiders at Global Self Storage, Inc.
1 other tracked filer at SELF.