Margaret K. Seif is CLO & VP +1 at ANALOG DEVICES INC (ADI). They have made 52 open-market trades across 1 company since 2010, most recently 2025-06-26.
CIK 0000006281
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 52 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ADI | SELL | 2019-02-25 | 2019-02-26 | $107.34 | $796K | -0.9% | -2.1% | -8.7% |
| ADI | SELL | 2019-02-25 | 2019-02-26 | $107.34 | $796K | -0.9% | -2.1% | -8.7% |
| ADI | SELL | 2019-02-22 | 2019-02-25 | $105.60 | $1.1M | -1.6% | -2.2% | -9.5% |
| ADI | SELL | 2019-02-04 | 2019-02-05 | $100.47 | $271K | +4.6% | +4.6% | +13.7% |
| ADI | SELL | 2019-01-11 | 2019-01-14 | $90.00 | $243K | +11.4% | +19.1% | +28.8% |
| ADI | SELL | 2018-12-03 | 2018-12-04 | $93.34 | $252K | -0.0% | -7.6% | +24.4% |
| ADI | SELL | 2018-11-08 | 2018-11-09 | $90.00 | $243K | +3.8% | +2.4% | +16.5% |
| ADI | SELL | 2018-10-01 | 2018-10-02 | $92.81 | $251K | -8.2% | -4.0% | -6.4% |
| ADI | SELL | 2018-09-04 | 2018-09-05 | $97.19 | $262K | -6.3% | -10.6% | -7.2% |
| ADI | SELL | 2018-06-05 | 2018-06-06 | $100.01 | $500K | -1.2% | -5.0% | -4.1% |
| ADI | SELL | 2018-05-07 | 2018-05-09 | $89.86 | $629K | +2.4% | +8.6% | +5.9% |
| ADI | SELL | 2018-04-05 | 2018-04-09 | $91.88 | $643K | +0.4% | +3.5% | +8.6% |
| ADI | SELL | 2018-03-05 | 2018-03-06 | $88.83 | $622K | +3.1% | -0.4% | +9.5% |
| ADI | SELL | 2018-02-05 | 2018-02-06 | $88.50 | $620K | -0.8% | +6.9% | +4.3% |
| ADI | SELL | 2018-01-05 | 2018-01-08 | $91.52 | $641K | +4.7% | -7.0% | -4.2% |
| ADI | SELL | 2017-12-05 | 2017-12-06 | $84.53 | $592K | +2.9% | +7.1% | +7.4% |
| ADI | SELL · 10b5-1 | 2017-11-28 | 2017-11-29 | $87.07 | $552K | -0.0% | +3.7% | +7.5% |
| ADI | SELL | 2017-11-28 | 2017-11-29 | $87.07 | $552K | -0.0% | +3.7% | +7.5% |
| ADI | SELL | 2017-11-27 | 2017-11-28 | $88.49 | $561K | -1.8% | +2.6% | +6.1% |
| ADI | SELL · 10b5-1 | 2017-11-27 | 2017-11-28 | $88.49 | $561K | -1.8% | +2.6% | +6.1% |
| ADI | SELL | 2017-08-21 | 2017-08-22 | $77.81 | $233K | +7.5% | +7.3% | +18.6% |
| ADI | SELL | 2017-07-20 | 2017-07-21 | $80.35 | $482K | -0.2% | -1.6% | +12.5% |
| ADI | SELL | 2017-06-20 | 2017-06-21 | $80.28 | $241K | -5.8% | -2.3% | +5.5% |
| ADI | SELL | 2017-05-22 | 2017-05-24 | $81.54 | $245K | -2.7% | -0.9% | -3.8% |
| ADI | SELL | 2017-05-22 | 2017-05-24 | $81.54 | $245K | -2.7% | -0.9% | -3.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.