George L. Duncan is Chairman at ENTERPRISE BANCORP INC /MA/ (EBTC). They have made 27 open-market trades across 1 company since 2006, most recently 2025-07-01.
CIK 0001282776
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.
5 open-market purchases totalling $272K since 2009, against 22 sales. Across 5 scored buys the stock is up 1.4% at ninety days, and 1.0 points behind the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| EBTC | 360,206 | $14.3M |
Shares reported on the most recent Form 4, priced at the 2025-07-01 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 20% | 0% | 60% |
| Avg Move | -1.8% | -3.6% | +1.4% |
| Alpha | -0.6% | -2.8% | -1.0% |
| Scored | 5 | 5 | 5 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| EBTC | SELL | 2022-11-22 | 2022-11-23 | $34.23 | $137K | +1.5% | +2.2% | +2.4% |
| EBTC | BUY | 2019-07-25 | 2019-07-29 | $28.48 | $28K | -3.9% | -4.4% | +4.7% |
| EBTC | BUY | 2018-11-19 | 2018-11-20 | $30.00 | $30K | +12.8% | -0.4% | +2.6% |
| EBTC | SELL | 2017-12-14 | 2017-12-18 | $34.34 | $664K | -2.2% | +2.0% | +0.1% |
| EBTC | SELL | 2017-12-12 | 2017-12-14 | $34.42 | $67K | +1.8% | +2.5% | +1.6% |
| EBTC | SELL | 2017-12-08 | 2017-12-12 | $34.50 | $100K | +1.3% | +0.4% | +3.0% |
| EBTC | SELL | 2017-12-06 | 2017-12-08 | $35.28 | $94K | +1.7% | -3.4% | -1.3% |
| EBTC | SELL | 2017-12-01 | 2017-12-05 | $37.25 | $55K | -3.1% | -7.8% | -8.3% |
| EBTC | SELL | 2017-12-01 | 2017-12-05 | $37.58 | $172K | -3.1% | -7.8% | -8.3% |
| EBTC | SELL | 2017-07-27 | 2017-07-31 | $34.50 | $103K | -6.9% | -5.6% | +6.0% |
| EBTC | SELL | 2016-12-05 | 2016-12-07 | $32.87 | $571K | +12.6% | +15.3% | -1.2% |
| EBTC | SELL | 2016-12-01 | 2016-12-05 | $32.76 | $21K | +9.7% | +18.5% | -2.8% |
| EBTC | SELL | 2016-11-29 | 2016-12-01 | $32.82 | $40K | +9.2% | +16.3% | +2.1% |
| EBTC | SELL | 2016-08-22 | 2016-08-23 | $23.16 | $28K | +14.7% | +13.3% | +40.5% |
| EBTC | BUY | 2016-06-21 | 2016-06-23 | $21.50 | $100K | -4.9% | -7.0% | +5.9% |
| EBTC | SELL | 2015-12-03 | 2015-12-04 | $24.00 | $24K | -6.4% | -3.0% | -1.4% |
| EBTC | SELL | 2015-03-18 | 2015-03-19 | $20.93 | $19K | -6.4% | -3.0% | -3.0% |
| EBTC | SELL | 2014-12-09 | 2014-12-10 | $24.00 | $59K | -6.4% | -3.0% | -3.0% |
| EBTC | SELL | 2014-12-08 | 2014-12-09 | $24.16 | $25K | -6.4% | -3.0% | -3.0% |
| EBTC | SELL | 2014-12-05 | 2014-12-08 | $24.00 | $156K | -6.4% | -3.0% | -3.0% |
| EBTC | SELL | 2013-12-03 | 2013-12-05 | $19.85 | $4K | -6.4% | -3.0% | -3.0% |
| EBTC | SELL | 2013-11-26 | 2013-11-27 | $20.00 | $20K | -6.4% | -3.0% | -3.0% |
| EBTC | BUY | 2009-12-02 | 2009-12-03 | $10.85 | $112K | -6.4% | -3.0% | -3.0% |
| EBTC | BUY | 2009-11-19 | 2009-11-23 | $10.85 | $2K | -6.4% | -3.0% | -3.0% |
| EBTC | SELL | 2009-06-16 | 2009-06-23 | $12.30 | $25K | -6.4% | -3.0% | -3.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.