Gregory B. Butler is CLO & VP at NORTHEAST UTILITIES (ES). They have made 19 open-market trades across 2 companies since 2006, most recently 2026-06-04.
CIK 0001192333
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 19 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ES | 56,179 | $4.0M |
| NU | 128,854 | $1.5M |
| Total | $5.5M |
Shares reported on the most recent Form 4, priced at the 2026-06-05 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ES | SELL | 2026-06-04 | 2026-06-05 | $69.88 | $489K | -2.1% | +3.7% | +1.3% |
| ES | SELL | 2025-11-12 | 2025-11-13 | $73.08 | $365K | -10.2% | -6.9% | -4.3% |
| ES | SELL | 2025-02-28 | 2025-03-03 | $62.68 | $752K | -3.9% | +0.1% | +3.7% |
| ES | SELL | 2024-05-29 | 2024-05-31 | $56.20 | $562K | -0.6% | -4.6% | +12.5% |
| ES | SELL | 2023-08-16 | 2023-08-18 | $64.25 | $964K | +0.1% | -0.1% | -10.7% |
| ES | SELL | 2022-08-29 | 2022-08-30 | $91.33 | $457K | +1.9% | -12.4% | -10.0% |
| ES | SELL | 2021-06-04 | 2021-06-07 | $82.16 | $986K | +0.4% | +0.4% | +8.9% |
| ES | SELL | 2020-09-04 | 2020-09-08 | $86.04 | $925K | -8.1% | +7.7% | +1.0% |
| ES | SELL | 2020-08-03 | 2020-08-05 | $88.81 | $999K | -0.6% | -2.1% | +4.6% |
| ES | SELL | 2019-08-02 | 2019-08-06 | $77.30 | $1.3M | +1.5% | +5.9% | +5.1% |
| ES | SELL | 2019-03-05 | 2019-03-07 | $68.63 | $789K | +0.8% | +1.5% | +9.6% |
| ES | SELL | 2016-09-08 | 2016-09-09 | $54.77 | $548K | +4.0% | -1.1% | -0.1% |
| ES | SELL | 2015-12-08 | 2015-12-09 | $50.88 | $497K | +1.3% | +0.3% | +11.9% |
| ES | SELL | 2015-06-05 | 2015-06-09 | $46.71 | $467K | +1.3% | +0.5% | +0.5% |
| ES | SELL | 2015-03-02 | 2015-03-04 | $50.80 | $1.0M | +1.3% | +0.5% | +0.5% |
| NU | SELL | 2014-08-07 | 2014-08-11 | $42.51 | $1.3M | +2.2% | +2.4% | +2.4% |
| NU | SELL | 2012-03-19 | 2012-03-20 | $36.55 | $548K | +2.2% | +2.4% | +2.4% |
| NU | SELL | 2011-08-12 | 2011-08-15 | $32.65 | $323K | +2.2% | +2.4% | +2.4% |
| NU | SELL | 2006-12-04 | 2006-12-06 | $28.41 | $847K | +2.2% | +2.4% | +2.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.