Biff Bowman is CFO at NORTHERN TRUST CORP (NTRS). They have made 6 open-market trades across 1 company since 2013, most recently 2026-06-01.
CIK 0001548048
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.
0 open-market purchases, against 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| NTRS | SELL | 2019-11-22 | 2019-11-25 | $106.53 | $1.4M | +1.3% | -0.9% | -10.2% |
| NTRS | SELL | 2019-08-02 | 2019-08-06 | $92.81 | $4.3M | -1.1% | +2.4% | +18.1% |
| NTRS | SELL | 2018-08-09 | 2018-08-09 | $111.11 | $2.4M | -0.5% | -2.8% | -10.1% |
| NTRS | SELL | 2018-02-27 | 2018-02-27 | $108.53 | $1.5M | +2.4% | -4.6% | -5.4% |
| NTRS | SELL | 2017-04-27 | 2017-04-28 | $91.77 | $2.1M | +0.4% | -2.6% | -3.1% |
| NTRS | SELL | 2016-11-16 | 2016-11-16 | $81.26 | $2.1M | +0.0% | +9.1% | +8.0% |
| NTRS | SELL · 10b5-1 | 2016-11-07 | 2016-11-09 | $74.00 | $545K | +5.7% | +15.3% | +8.9% |
| NTRS | SELL · 10b5-1 | 2016-09-07 | 2016-09-08 | $70.00 | $207K | -1.7% | +3.3% | +28.0% |
| NTRS | SELL · 10b5-1 | 2015-04-22 | 2015-04-24 | $72.95 | $216K | -7.9% | +0.4% | +0.4% |
| NTRS | SELL · 10b5-1 | 2014-08-25 | 2014-08-27 | $68.95 | $208K | -7.9% | +0.4% | +0.4% |
| NTRS | SELL · 10b5-1 | 2014-07-24 | 2014-07-25 | $66.95 | $202K | -7.9% | +0.4% | +0.4% |
| NTRS | SELL · 10b5-1 | 2013-05-17 | 2013-05-17 | $58.25 | $350K | -7.9% | +0.4% | +0.4% |
| NTRS | SELL · 10b5-1 | 2013-03-05 | 2013-03-06 | $54.00 | $378K | -7.9% | +0.4% | +0.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.