R. Mark Graf is CFO & VP at Discover Financial Services (DFS). They have made 11 open-market trades across 2 companies since 2010, most recently 2026-08-21.
CIK 0001494757
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.
1 open-market purchase totalling $1K since 2010, against 10 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DFS | SELL | 2019-07-25 | 2019-07-26 | $92.44 | $883K | -9.7% | -15.8% | -14.0% |
| DFS | SELL | 2019-04-29 | 2019-05-01 | $81.92 | $5.0M | -5.6% | -8.2% | +12.2% |
| DFS | SELL | 2018-02-02 | 2018-02-05 | $79.84 | $3.6M | +7.8% | +5.1% | -1.5% |
| DFS | SELL | 2017-10-27 | 2017-10-31 | $66.67 | $2.2M | -2.9% | +5.9% | +21.9% |
| DFS | SELL | 2017-04-27 | 2017-05-01 | $64.50 | $1.9M | -2.9% | -5.4% | -1.8% |
| DFS | SELL | 2016-10-27 | 2016-10-31 | $56.78 | $2.8M | +12.6% | +20.0% | +23.3% |
| DFS | SELL | 2016-04-26 | 2016-04-27 | $56.65 | $2.2M | -2.4% | +0.5% | +0.0% |
| DFS | SELL | 2015-10-26 | 2015-10-27 | $56.48 | $1.1M | -6.0% | +0.3% | -9.4% |
| DFS | SELL | 2015-01-26 | 2015-01-27 | $56.65 | $1.6M | -6.0% | +0.3% | +0.3% |
| DFS | SELL | 2014-08-05 | 2014-08-05 | $60.00 | $1.1M | -6.0% | +0.3% | +0.3% |
| BNCN | BUY | 2010-09-14 | 2010-09-15 | $10.25 | $1K | -9.8% | -2.7% | -2.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.