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Graham Corp (GHM) · Insider trading

What Graham's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.

Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$0
0 insiders
Net, 12 months
$0
bought less sold
Latest filing
2026-09-21
filings read to 2026-10-19

Bought and sold at the market, by month

Two years. Purchases above the line, sales below, in dollars.

2025-01 2025-07 2025-09: $58,812 bought 2026-01 2026-07
Bought Sold Largest month: $58,812

Who traded, two years

InsiderBoughtSold TradesLast tradeHolds after
Gregorio MauroDirector $58,812 – 1 2025-09-12 –

Open-market purchases and sales

Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.

DateInsiderTradeShares PriceValueHolds afterFiling
2025-09-12 Gregorio MauroDirector Buyindirect 1,200 49.01 $58,812 1,200 Form 4/A

Grants, exercises and other transactions

Pay, tax and paperwork rather than a choice to trade at the market price. Two years.

35 × option exercise29 × shares withheld for tax7 × grant or award1 × gift
Show them
DateInsiderWhatShares PriceHolds afterFiling
2026-09-18 Gregorio MauroDirector Gift G −936 – 0 Form 4
2026-09-02 Gregorio MauroDirector Option exercise M +936 – 2,136 Form 4
2026-06-08 Malone MatthewDirector, President and CEO Grant or award A +8,619 – 66,106 Form 4
2026-06-08 Malone MatthewDirector, President and CEO Shares withheld for tax F −2,477 95.34 63,629 Form 4
2026-06-08 Thome Christopher J.VP-Finance; CFO Grant or award A +8,619 – 39,181 Form 4
2026-06-08 Thome Christopher J.VP-Finance; CFO Shares withheld for tax F −3,193 95.34 35,988 Form 4
2026-06-08 Thoren Daniel J.Director, Executive Chairman Grant or award A +22,101 – 383,040 Form 4
2026-06-08 Thoren Daniel J.Director, Executive Chairman Shares withheld for tax F −8,095 95.34 374,945 Form 4
2026-06-04 Malone MatthewDirector, President and CEO Option exercise M +1,291 – 57,858 Form 4
2026-06-04 Malone MatthewDirector, President and CEO Shares withheld for tax F −371 107.96 57,487 Form 4
2026-06-04 Thome Christopher J.VP-Finance; CFO Option exercise M +1,643 – 31,170 Form 4
2026-06-04 Thome Christopher J.VP-Finance; CFO Shares withheld for tax F −608 107.96 30,562 Form 4
2026-06-04 Thoren Daniel J.Director, Executive Chairman Option exercise M +5,543 – 362,532 Form 4
2026-06-04 Thoren Daniel J.Director, Executive Chairman Shares withheld for tax F −1,593 107.96 360,939 Form 4
2026-06-02 Thome Christopher J.VP-Finance; CFO Option exercise M +1,099 – 29,934 Form 4
2026-06-02 Thome Christopher J.VP-Finance; CFO Shares withheld for tax F −407 106.11 29,527 Form 4
2026-06-02 Thoren Daniel J.Director, Executive Chairman Option exercise M +529 – 357,141 Form 4
2026-06-02 Thoren Daniel J.Director, Executive Chairman Shares withheld for tax F −152 106.11 356,989 Form 4
2026-06-02 Dixon Michael E.VP & GM of Barber-Nichols Option exercise M +762 – 1,498 Form 4
2026-06-02 Dixon Michael E.VP & GM of Barber-Nichols Shares withheld for tax F −235 106.11 1,263 Form 4
2026-06-02 Malone MatthewDirector, President and CEO Option exercise M +2,540 – 57,297 Form 4
2026-06-02 Malone MatthewDirector, President and CEO Shares withheld for tax F −730 106.11 56,567 Form 4
2026-06-02 Jaroslawsky Cari LDirector Option exercise M +1,956 – 18,623 Form 4
2026-06-02 Barber James JDirector Option exercise M +1,956 – 55,791 Form 4
2026-06-02 Schnorr Lisa M.Director Option exercise M +1,956 – 37,867 Form 4
2026-06-02 Stoner Troy A.Director Option exercise M +1,956 – 18,623 Form 4
2026-06-02 Painter Jonathan WDirector Option exercise M +1,956 – 34,556 Form 4
2026-05-17 Thoren Daniel J.Director, Executive Chairman Option exercise M +6,089 – 358,412 Form 4
2026-05-17 Thoren Daniel J.Director, Executive Chairman Shares withheld for tax F −1,800 98.28 356,612 Form 4
2026-05-17 Thome Christopher J.VP-Finance; CFO Option exercise M +2,375 – 29,735 Form 4
2026-05-17 Thome Christopher J.VP-Finance; CFO Shares withheld for tax F −900 98.28 28,835 Form 4
2026-05-17 Malone MatthewDirector, President and CEO Option exercise M +2,375 – 55,439 Form 4
2026-05-17 Malone MatthewDirector, President and CEO Shares withheld for tax F −682 98.28 54,757 Form 4
2026-02-04 Dixon Michael E.VP & GM of Barber-Nichols Option exercise M +355 – 856 Form 4
2026-02-04 Dixon Michael E.VP & GM of Barber-Nichols Shares withheld for tax F −120 73.19 736 Form 4
2025-06-09 Smith Alan EVP & General Manager - Batavia Grant or award A +7,693 – 70,253 Form 4
2025-06-09 Smith Alan EVP & General Manager - Batavia Shares withheld for tax F −3,619 44.66 66,634 Form 4
2025-06-09 Thome Christopher J.VP-Finance; CFO Grant or award A +7,436 – 30,040 Form 4
2025-06-09 Thome Christopher J.VP-Finance; CFO Shares withheld for tax F −2,680 44.66 27,360 Form 4
2025-06-09 Malone MatthewPresident and CEO Grant or award A +7,693 – 55,275 Form 4
2025-06-09 Malone MatthewPresident and CEO Shares withheld for tax F −2,211 44.66 53,064 Form 4
2025-06-09 Thoren Daniel J.Director, Executive Chairman Grant or award A +20,513 – 359,177 Form 4
2025-06-09 Thoren Daniel J.Director, Executive Chairman Shares withheld for tax F −7,394 44.66 351,783 Form 4
2025-06-04 Malone MatthewPresident and COO Option exercise M +1,291 – 47,953 Form 4
2025-06-04 Malone MatthewPresident and COO Shares withheld for tax F −371 40.89 47,582 Form 4
2025-06-04 Thome Christopher J.VP-Finance; CFO Option exercise M +1,643 – 23,196 Form 4
2025-06-04 Thome Christopher J.VP-Finance; CFO Shares withheld for tax F −592 40.89 22,604 Form 4
2025-06-04 Thoren Daniel J.Director, Chief Executive Officer Option exercise M +5,542 – 340,661 Form 4
2025-06-04 Thoren Daniel J.Director, Chief Executive Officer Shares withheld for tax F −1,997 40.89 338,664 Form 4
2025-06-04 Smith Alan EVP & General Manager - Batavia Option exercise M +1,291 – 63,167 Form 4
2025-06-04 Smith Alan EVP & General Manager - Batavia Shares withheld for tax F −607 40.89 62,560 Form 4
2025-06-04 Barber James JDirector Option exercise M +2,934 – 53,835 Form 4
2025-06-04 Jaroslawsky Cari LDirector Option exercise M +2,934 – 16,667 Form 4
2025-06-04 Painter Jonathan WDirector Option exercise M +2,934 – 32,600 Form 4
2025-06-04 Schnorr Lisa M.Director Option exercise M +2,934 – 35,911 Form 4
2025-06-04 Stoner Troy A.Director Option exercise M +2,934 – 16,667 Form 4
2025-05-23 Malone MatthewPresident and COO Option exercise M +3,053 – 46,662 Form 4
2025-05-23 Thome Christopher J.VP-Finance; CFO Option exercise M +2,951 – 22,616 Form 4
2025-05-23 Thome Christopher J.VP-Finance; CFO Shares withheld for tax F −1,063 36.79 21,553 Form 4
2025-05-23 Thoren Daniel J.Director, Chief Executive Officer Option exercise M +8,140 – 338,053 Form 4
2025-05-23 Thoren Daniel J.Director, Chief Executive Officer Shares withheld for tax F −2,934 36.79 335,119 Form 4
2025-05-23 Smith Alan EVP & General Manager - Batavia Option exercise M +3,053 – 53,614 Form 4
2025-05-23 Smith Alan EVP & General Manager - Batavia Shares withheld for tax F −1,436 36.79 52,178 Form 4
2025-05-23 Smith Alan EVP & General Manager - Batavia Option exercise M +18,315 – 70,493 Form 4
2025-05-23 Smith Alan EVP & General Manager - Batavia Shares withheld for tax F −8,617 36.79 61,876 Form 4
2025-05-17 Smith Alan EVP & General Manager - Batavia Option exercise M +2,374 – 51,725 Form 4
2025-05-17 Smith Alan EVP & General Manager - Batavia Shares withheld for tax F −1,164 37.29 50,561 Form 4
2025-05-17 Malone MatthewPresident and COO Option exercise M +2,374 – 43,609 Form 4
2025-05-17 Thoren Daniel J.Director, Chief Executive Officer Option exercise M +6,088 – 332,104 Form 4
2025-05-17 Thoren Daniel J.Director, Chief Executive Officer Shares withheld for tax F −2,191 37.29 329,913 Form 4
2025-05-17 Thome Christopher J.VP-Finance; CFO Option exercise M +2,374 – 20,571 Form 4
2025-05-17 Thome Christopher J.VP-Finance; CFO Shares withheld for tax F −906 37.29 19,665 Form 4

How to read it

Buy, sale
Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
Plan
A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
Holds after
The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
Value
Shares times the price the form reports, which is often an average over several fills on the day.

Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.

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