Colleen F. Arnold is President & VP at INTERNATIONAL BUSINESS MACHINES CORP (IBM). They have made 14 open-market trades across 2 companies since 2010, most recently 2026-09-10.
CIK 0001409123
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 14 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| IBM | SELL | 2015-05-04 | 2015-05-05 | $175.95 | $990K | -3.3% | +0.3% | +0.3% |
| CAH | SELL | 2015-03-04 | 2015-03-04 | $87.65 | $859K | -10.9% | +0.3% | +0.3% |
| IBM | SELL | 2014-05-05 | 2014-05-06 | $191.07 | $1.0M | -3.3% | +0.3% | +0.3% |
| CAH | SELL | 2014-02-04 | 2014-02-05 | $65.46 | $541K | -10.9% | +0.3% | +0.3% |
| IBM | SELL | 2013-02-28 | 2013-03-01 | $203.00 | $2.0M | -3.3% | +0.3% | +0.3% |
| IBM | SELL | 2012-11-13 | 2012-11-14 | $189.12 | $965K | -3.3% | +0.3% | +0.3% |
| IBM | SELL | 2012-08-07 | 2012-08-08 | $200.55 | $230K | -3.3% | +0.3% | +0.3% |
| IBM | SELL | 2012-02-07 | 2012-02-08 | $193.50 | $2.8M | -3.3% | +0.3% | +0.3% |
| IBM | SELL | 2011-11-03 | 2011-11-04 | $185.04 | $740K | -3.3% | +0.3% | +0.3% |
| IBM | SELL | 2011-05-13 | 2011-05-16 | $172.03 | $222K | -3.3% | +0.3% | +0.3% |
| IBM | SELL | 2011-05-04 | 2011-05-05 | $170.00 | $170K | -3.3% | +0.3% | +0.3% |
| IBM | SELL | 2011-02-08 | 2011-02-09 | $165.00 | $660K | -3.3% | +0.3% | +0.3% |
| IBM | SELL | 2010-10-29 | 2010-11-01 | $142.00 | $982K | -3.3% | +0.3% | +0.3% |
| IBM | SELL | 2010-05-18 | 2010-05-19 | $131.20 | $369K | -3.3% | +0.3% | +0.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.