David A. Pierce is President & VP at BOSTON SCIENTIFIC CORP (BSX). They have made 73 open-market trades across 1 company since 2011, most recently 2023-06-05.
CIK 0001529751
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 73 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| BSX | SELL | 2022-03-01 | 2022-03-02 | $43.94 | $152K | -5.1% | +1.9% | -7.2% |
| BSX | SELL | 2022-02-22 | 2022-02-24 | $42.90 | $313K | -7.0% | +0.6% | -8.9% |
| BSX | SELL | 2022-02-18 | 2022-02-22 | $42.88 | $202K | +1.6% | -0.9% | -7.8% |
| BSX | SELL | 2022-02-16 | 2022-02-17 | $43.81 | $171K | +2.4% | +3.4% | -6.2% |
| BSX | SELL | 2022-01-04 | 2022-01-05 | $43.54 | $536K | +2.6% | -0.8% | +2.9% |
| BSX | SELL | 2021-12-20 | 2021-12-21 | $39.90 | $4.0M | +5.0% | +5.8% | +7.9% |
| BSX | SELL | 2021-06-03 | 2021-06-07 | $41.36 | $137K | +2.3% | +3.7% | +6.4% |
| BSX | SELL | 2021-03-16 | 2021-03-17 | $39.36 | $599K | -0.7% | +5.3% | +10.0% |
| BSX | SELL | 2021-03-02 | 2021-03-04 | $38.90 | $53K | +1.3% | +1.8% | +8.5% |
| BSX | SELL | 2021-02-23 | 2021-02-24 | $39.20 | $222K | -0.1% | -3.3% | +8.8% |
| BSX | SELL | 2021-02-19 | 2021-02-23 | $38.00 | $56K | +2.0% | -2.1% | +10.5% |
| BSX | SELL | 2021-02-16 | 2021-02-17 | $38.28 | $118K | +4.3% | +2.4% | +12.0% |
| BSX | SELL | 2021-02-04 | 2021-02-08 | $38.00 | $430K | -3.7% | -0.4% | +9.5% |
| BSX | SELL | 2020-11-09 | 2020-11-10 | $39.00 | $79K | -11.7% | -10.9% | +3.7% |
| BSX | SELL | 2020-10-01 | 2020-10-05 | $38.56 | $176K | -2.0% | -11.3% | -11.4% |
| BSX | SELL | 2020-09-01 | 2020-09-02 | $40.70 | $166K | -2.7% | -8.7% | -20.2% |
| BSX | SELL | 2020-08-03 | 2020-08-04 | $38.69 | $185K | +5.0% | +11.2% | -7.4% |
| BSX | SELL | 2020-07-22 | 2020-07-23 | $38.00 | $82K | -3.6% | +1.1% | -3.6% |
| BSX | SELL | 2020-06-03 | 2020-06-04 | $38.00 | $62K | -3.8% | -6.7% | +10.7% |
| BSX | SELL | 2020-06-01 | 2020-06-03 | $38.00 | $75K | -5.2% | -5.9% | +9.6% |
| BSX | SELL | 2020-05-08 | 2020-05-11 | $38.00 | $78K | -8.2% | -1.1% | +2.8% |
| BSX | SELL | 2020-04-17 | 2020-04-20 | $38.00 | $562K | +3.6% | +2.7% | +2.7% |
| BSX | SELL | 2020-03-02 | 2020-03-03 | $38.00 | $132K | -15.0% | -18.4% | -1.4% |
| BSX | SELL | 2020-02-25 | 2020-02-26 | $41.15 | $339K | -11.7% | -20.7% | -6.3% |
| BSX | SELL | 2020-02-19 | 2020-02-19 | $42.31 | $128K | -11.3% | -36.9% | -17.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.