undamentalytics Newsletter

Star Group, L.p. insider trading

Every open-market purchase and sale by Star Group, L.p.'s officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Star Group, L.p. insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Star Group, L.p.’s insiders pay?

From May 13, 2010 to August 14, 2025, 14 insiders reported 56 open-market purchases and 6 sales not made under a pre-set plan in Star Group, L.p. Twelve months after each purchase was reported, the shares were −1.9% against the S&P 500 on average (median −2.9%), over 28 purchases with a full year of prices; 32% beat the index. After sales, the shares moved −33.6% against the index over 12 months (a negative figure means selling was the right call). Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on February 17, 2011 into $37,038 by November 2, 2026, +8.7% a year. It held shares 47% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $28,272 (+6.9% a year), and held throughout $74,234 (+13.7%).

$0$25.0k$50.0k$75.0k 20112013201520172019202120232025 $74.2k$37.0k$28.3k
Copying Star Group, L.p.'s insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Star Group, L.p.'s insiders from February 17, 2011, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 47% of the time.
Star Group, L.p.: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Kestrel Energy Partners LLC 10% owner 12 — — 0 — May 29, 2012
Lubar Sheldon B Director 9 −16.0% (9) 0% 0 — March 2, 2011
Ambury Richard Chief Financial Officer 7 +6.8% (6) 67% 0 — May 24, 2022
Goldman Steven Jay President and CEO 7 +6.5% (4) 75% 0 — August 16, 2018
Bylinsky Gregory Other 4 — — 1 — December 9, 2011
Bandera Partners LLC 10% owner 2 — — 1 −12.8% (1) June 3, 2025
Donovan Daniel P. President and CEO 3 +0.4% (2) 50% 0 — May 18, 2020
Gramm Jefferson 10% owner 1 — — 2 −45.8% (2) June 20, 2023
Shpiz Andrew 10% owner 2 — — 1 −30.0% (1) June 25, 2012
Vermylen Paul A Jr Director 3 −2.0% (2) 0% 0 — May 13, 2020
Woosnam Jeffrey M President and CEO 3 +11.7% (3) 33% 0 — May 24, 2022
Baxter Scott Director 1 −5.4% (1) 0% 1 — August 14, 2025
Babcock Henry D Director 1 — — 0 — February 14, 2012
Hammond Jeffrey S Chief Operating Officer 1 −2.1% (1) 0% 0 — February 14, 2020

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Star Group, L.p.

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Star Group, L.p. in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 4 buying crowds with six months of prices, it averaged +0.1% against the index. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
May 31, 20222 buying−3.8%−7.6%+46.2%
February 28, 20204 buying−13.8%−11.9%−17.7%
August 31, 20182 buying+6.6%+8.4%+1.3%
May 31, 20162 buying+0.3%+11.6%+4.0%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

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