Graham (NYSE: GHC) insider transactions
In the twelve months to 10 November 2026, executives and directors of Graham reported no open-market sales and no open-market purchases, according to the Form 4 filings they submitted to the SEC.
Latest transactions
| Date | Insider | Role | Transaction | Shares | Price | Held after | Filing |
|---|---|---|---|---|---|---|---|
| 1 October 2026 | Conley Danielle Y. | Director | Grant or award | +19 | $1,139.10 | 480 | Form 4 |
| 1 October 2026 | Davis Christopher C | Director | Grant or award | +24 | $1,139.10 | 5,638 | Form 4 |
| 1 October 2026 | Markell Jack A. | Director | Grant or award | +7 | $1,139.10 | 55 | Form 4 |
| 1 October 2026 | Mulcahy Anne M | Director | Grant or award | +21 | $1,139.10 | 779 | Form 4 |
| 1 October 2026 | Wagoner G Richard JR | Director | Grant or award | +21 | $1,139.10 | 1,575 | Form 4 |
| 28 August 2026 | Maas, Jacob | Executive VP | Grant or award | +1,000 | — | 7,657 | Form 4 |
| 28 August 2026 | Maas, Jacob | Executive VP | Shares withheld for tax | −501 | $1,159.23 | 7,156 | Form 4 |
| 13 August 2026 | O'Shaughnessy Laura | — | Other | −4,211 | — | 22,865 | Form 4 |
| 13 August 2026 | O'Shaughnessy Timothy J | President and CEO | Other | −4,211 | — | 22,878 | Form 4 |
| 1 July 2026 | Conley Danielle Y. | Director | Grant or award | +19 | $1,161.11 | 461 | Form 4 |
| 1 July 2026 | Davis Christopher C | Director | Grant or award | +23 | $1,161.11 | 5,614 | Form 4 |
| 1 July 2026 | Markell Jack A. | Director | Grant or award | +7 | $1,161.11 | 48 | Form 4 |
| 1 July 2026 | Mulcahy Anne M | Director | Grant or award | +21 | $1,161.11 | 758 | Form 4 |
| 1 July 2026 | Wagoner G Richard JR | Director | Grant or award | +21 | $1,161.11 | 1,554 | Form 4 |
| 26 May 2026 | O'Shaughnessy Timothy J | President and CEO | Other | −5,600 | — | 0 | Form 4 |
| 26 May 2026 | O'Shaughnessy Timothy J | President and CEO | Other | −400 | — | 27,087 | Form 4 |
| 26 May 2026 | Weymouth Katharine | Director | Other | +6,000 | — | 7,615 | Form 4 |
| 26 May 2026 | O'Shaughnessy Laura | — | Other | −5,600 | — | 0 | Form 4 |
| 26 May 2026 | O'Shaughnessy Laura | — | Other | −400 | — | 27,076 | Form 4 |
| 1 April 2026 | Conley Danielle Y. | Director | Grant or award | +21 | $1,061.70 | 442 | Form 4 |
Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.
How to read the table
Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.
Where each row comes from
From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the Graham page; the method, in data sources.
Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.