undamentalytics Newsletter

Graham Corp insider trading

Every open-market purchase and sale by Graham Corp'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.
Graham Corp 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 Graham Corp’s insiders pay?

From February 3, 2010 to September 15, 2025, 14 insiders reported 38 open-market purchases and 41 sales not made under a pre-set plan in Graham Corp. Twelve months after each purchase was reported, the shares were +13.3% against the S&P 500 on average (median +3.5%), over 38 purchases with a full year of prices; 55% beat the index. After sales, the shares moved −7.5% 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 4, 2010 into $40,925 by November 2, 2026, +8.8% a year. It held shares 66% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $42,122 (+9.0% a year), and held throughout $95,468 (+14.5%).

$0$50.0k$100k 201020122014201620182020202220242026 $95.5k$42.1k$40.9k
Copying Graham Corp's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Graham Corp's insiders from February 4, 2010, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 66% of the time.
Graham Corp: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Glajch Jeffrey VP-Finance; CFO 13 +6.1% (13) 46% 9 −19.0% (9) March 10, 2022
Bidlack Jerald D Director 0 — — 14 +11.7% (14) February 5, 2015
Lines James R President and CEO 7 −4.8% (7) 43% 3 −25.6% (3) March 5, 2020
Smith Alan E VP & General Manager - Batavia 3 +19.0% (3) 67% 4 +3.6% (4) February 21, 2023
Barber James J Director 5 −3.6% (5) 20% 0 — February 14, 2022
Condame Jennifer R CAO and Controller 0 — — 5 −24.3% (5) December 5, 2019
Fortier Alan Director 4 +6.8% (4) 75% 0 — February 11, 2022
Mazurkiewicz Gerard T Director 0 — — 3 −10.7% (3) February 28, 2017
Thoren Daniel J. President and CEO 3 +86.9% (3) 100% 0 — August 5, 2022
Berkeley Helen H Director 0 — — 2 −34.9% (2) August 22, 2013
Gregorio Mauro Director 1 +43.1% (1) 100% 0 — September 15, 2025
Malvaso James J Director 0 — — 1 −13.6% (1) June 9, 2011
Painter Jonathan W Director 1 +45.9% (1) 100% 0 — February 11, 2022
Schnorr Lisa M. Director 1 +45.0% (1) 100% 0 — February 10, 2022

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 Graham Corp

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Graham Corp 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 5 buying crowds with six months of prices, it averaged +0.4% against the index. After 2 selling crowds, +0.8%. 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
February 28, 20226 buying−4.0%+30.6%+85.7%
February 28, 20202 buying−34.3%−41.0%−38.4%
September 30, 20142 buying−7.7%−21.7%−37.0%
August 30, 20133 selling−2.7%−11.8%−33.3%
August 31, 20122 buying−2.3%+13.3%+66.0%
June 30, 20113 selling−6.4%+13.3%−13.7%
August 31, 20103 buying+2.6%+20.8%+2.4%

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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