Graham Corp (GHM) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, the three largest insider holders of GHM are Daniel J. Thoren (Executive Chairman, 351.78K shares), James R Lines (President And Ceo, 165.34K shares), Alan E Smith (Vp General Manager Batavia, 66.63K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Daniel J. Thoren Executive Chairman 351,783 0 11 Jun, 2025
James R Lines President And Ceo 165,343 0 20 May, 2021
Alan E Smith Vp General Manager Batavia 66,634 0 11 Jun, 2025
James J Barber 53,835 0 04 Jun, 2025
Matthew Malone President And Ceo 53,064 0 11 Jun, 2025
Alan Fortier 49,566 0 21 May, 2024
Jeffrey Glajch Vp Finance; Cfo 44,155 0 26 Apr, 2022
Lisa M. Schnorr 35,911 0 04 Jun, 2025
Jonathan W Painter 32,600 0 04 Jun, 2025
James J Malvaso 29,384 0 02 Jun, 2021
Jennifer R Condame Cao And Controller 28,652 0 10 Jun, 2022
Christopher J. Thome Vp Finance; Cfo 27,360 0 11 Jun, 2025
Gerard T Mazurkiewicz 21,088 0 02 Jun, 2021
Troy A. Stoner 16,667 0 04 Jun, 2025
Cari L Jaroslawsky 16,667 0 04 Jun, 2025
Mauro Gregorio 1,200 0 15 Sep, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
12 Sep, 2025 Mauro Gregorio Common Stock A 1,200 $49.01 1,200 D P
02 Sep, 2025 Mauro Gregorio Restricted Stock Units A 936 $0.00 936 D A
09 Jun, 2025 Matthew Malone Common Stock A 7,693 $0.00 55,275 D A
09 Jun, 2025 Daniel J. Thoren Common Stock A 20,513 $0.00 359,177 D A
09 Jun, 2025 Christopher J. Thome Common Stock A 7,436 $0.00 30,040 D A
09 Jun, 2025 Alan E Smith Common Stock A 7,693 $0.00 70,253 D A
09 Jun, 2025 Alan E Smith Common Stock D 3,619 $44.66 66,634 D F
09 Jun, 2025 Matthew Malone Common Stock D 2,211 $44.66 53,064 D F
09 Jun, 2025 Daniel J. Thoren Common Stock D 7,394 $44.66 351,783 D F
09 Jun, 2025 Christopher J. Thome Common Stock D 2,680 $44.66 27,360 D F
04 Jun, 2025 Daniel J. Thoren Common Stock A 5,542 $0.00 340,661 D M
04 Jun, 2025 Alan E Smith Common Stock A 1,291 $0.00 63,167 D M
04 Jun, 2025 Christopher J. Thome Common Stock A 1,643 $0.00 23,196 D M
04 Jun, 2025 Matthew Malone Common Stock A 1,291 $0.00 47,953 D M
04 Jun, 2025 Christopher J. Thome Common Stock D 592 $40.89 22,604 D F
04 Jun, 2025 Alan E Smith Common Stock D 607 $40.89 62,560 D F
04 Jun, 2025 Daniel J. Thoren Common Stock D 1,997 $40.89 338,664 D F
04 Jun, 2025 Matthew Malone Common Stock D 371 $40.89 47,582 D F
04 Jun, 2025 Daniel J. Thoren Restricted Stock Units D 5,542 $0.00 11,086 D M
04 Jun, 2025 Alan E Smith Restricted Stock Units D 1,291 $0.00 2,582 D M