Peter I. Tumminello is President & VP at AGL RESOURCES INC (GAS). They have made 9 open-market trades across 2 companies since 2013, most recently 2026-02-26.
CIK 0001491158
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.
3 open-market purchases totalling $443K since 2022, against 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| AGL | 28,016 | $2.4M |
| GAS | 27,638 | $1.8M |
| DTM | 11,386 | $1.4M |
| Total | $5.6M |
Shares reported on the most recent Form 4, priced at the 2026-02-27 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 |
|---|---|---|---|---|---|---|---|---|
| DTM | SELL | 2026-02-26 | 2026-02-27 | $135.79 | $272K | -0.8% | -3.8% | +2.3% |
| DTM | BUY | 2023-05-23 | 2023-05-24 | $47.35 | $237K | +2.4% | -0.2% | +11.5% |
| DTM | BUY | 2022-10-13 | 2024-12-06 | $60.66 | $42K | -7.9% | -0.4% | -13.4% |
| DTM | BUY | 2022-08-08 | 2022-08-10 | $54.80 | $164K | -1.0% | -0.5% | +4.7% |
| GAS | SELL | 2016-03-07 | 2016-03-08 | $64.67 | $241K | -0.4% | +0.7% | +1.5% |
| GAS | SELL | 2015-12-15 | 2015-12-17 | $63.02 | $811K | -0.3% | +0.6% | +2.0% |
| GAS | SELL | 2014-05-15 | 2014-05-16 | $52.43 | $80K | -0.3% | +0.3% | +0.3% |
| GAS | SELL | 2014-05-05 | 2014-05-07 | $53.24 | $799K | -0.3% | +0.3% | +0.3% |
| GAS | SELL | 2013-08-07 | 2013-08-08 | $45.72 | $457K | -0.3% | +0.3% | +0.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.