Michael J. Zimmerman is Director at STIFEL FINANCIAL CORP (SF). They have made 12 open-market trades across 5 companies since 2008, most recently 2026-06-04.
CIK 0001239734
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
6 open-market purchases totalling $637K since 2008, against 6 sales. Across 6 scored buys the stock is down 1.5% at ninety days, and 1.3 points behind the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 0% | 0% | 17% |
| Avg Move | -8.8% | -3.6% | -1.5% |
| Alpha | -38.0% | -2.8% | -1.3% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SF | SELL | 2025-06-06 | 2025-06-06 | $96.70 | $967K | -0.3% | +10.2% | +18.7% |
| SF | BUY | 2018-11-07 | 2018-11-07 | $48.39 | $242K | -1.0% | -8.6% | +3.9% |
| OSGIQ | SELL | 2014-05-29 | 2014-05-30 | $6.66 | $127K | N/A | N/A | N/A |
| OSG | BUY | 2011-11-22 | 2011-11-22 | $10.23 | $51K | -11.6% | -2.0% | -2.0% |
| OSG | BUY | 2011-08-04 | 2011-08-04 | $19.50 | $98K | -11.6% | -2.0% | -2.0% |
| OSG | BUY | 2011-06-03 | 2011-06-03 | $25.05 | $100K | -11.6% | -2.0% | -2.0% |
| OSG | SELL | 2010-03-15 | 2010-03-16 | $43.97 | $330K | -11.6% | -2.0% | -2.0% |
| FIF | SELL | 2009-07-15 | 2009-07-16 | $19.73 | $39K | -15.3% | -0.6% | -0.6% |
| FIF | SELL | 2009-07-10 | 2009-07-13 | $19.25 | $39K | -15.3% | -0.6% | -0.6% |
| FIF | SELL | 2009-06-05 | 2009-06-09 | $24.32 | $29K | -15.3% | -0.6% | -0.6% |
| SFD | BUY | 2008-03-27 | 2008-03-31 | $25.93 | $104K | -1.7% | -6.2% | -6.2% |
| FIF | BUY | 2008-01-07 | 2008-01-08 | $21.00 | $42K | -15.3% | -0.6% | -0.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.