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United States Machinery, Equipment & Components

Graham Corp (GHM)

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The most recent insider transaction at Graham Corp. was a buy by Gregorio Mauro on September 12, 2025. Prior to this, significant buying activity occurred in February 2022, with multiple executives, including the President and CEO, purchasing shares. The CFO also engaged in selling activity in March 2022.
Stock chart
Ticker: GHM Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Thoren Daniel J.
Affiliate
1 sale — total 100,000 USD
Proposed sale 23 Jun 2026
Value US$2,933,954.27 | Price 267.02 | Shares 97,466
Buy 12 Sep 2025
Value US$166,906.90 | Price 174.49 | Shares 53,223
Buy 21 Feb 2023
Value US$54,120.00 | Price 13.53 | Shares 4,000
Planned buy 4 Aug 2022
Value US$58,725.00 | Price 7.83 | Shares 7,500
Buy 2 Aug 2022
Value US$36,000.00 | Price 7.20 | Shares 5,000
Sale 9 Mar 2022
Value US$64,031.88 | Price 8.13 | Shares 7,876
Sale 8 Mar 2022
Value US$17,268.12 | Price 8.13 | Shares 2,124
Buy 22 Feb 2022
Value US$98,750.00 | Price 7.90 | Shares 12,500
Buy 11 Feb 2022
Value US$60,720.00 | Price 9.20 | Shares 6,600
Buy 10 Feb 2022
Value US$72,800.00 | Price 9.10 | Shares 8,000
Buy 10 Feb 2022
Value US$55,140.00 | Price 9.19 | Shares 6,000
Buy 10 Feb 2022
Value US$22,700.00 | Price 9.08 | Shares 2,500
Buy 10 Feb 2022
Value US$45,500.00 | Price 9.10 | Shares 5,000
Sale 8 Dec 2021
Value US$36,885.75 | Price 12.75 | Shares 2,893
Sale 9 Mar 2021
Value US$30,114.00 | Price 16.73 | Shares 1,800
Sale 8 Mar 2021
Value US$83,295.72 | Price 16.04 | Shares 5,193
Sale 5 Mar 2021
Value US$47,811.30 | Price 15.90 | Shares 3,007
Planned sale 4 Mar 2021
Value US$92,394.00 | Price 15.93 | Shares 5,800
Buy 12 Jun 2020
Value US$9,983.41 | Price 12.31 | Shares 811
Buy 5 Mar 2020
Value US$39,250.00 | Price 15.70 | Shares 2,500
Buy 25 Feb 2020
Value US$30,600.00 | Price 17.00 | Shares 1,800
Buy 21 Feb 2020
Value US$44,448.00 | Price 18.52 | Shares 2,400
Buy 20 Feb 2020
Value US$19,546.56 | Price 18.51 | Shares 1,056
Buy 14 Feb 2020
Value US$61,105.33 | Price 18.59 | Shares 3,287
Buy 13 Feb 2020
Value US$76,405.68 | Price 18.14 | Shares 4,212
Buy 12 Feb 2020
Value US$36,886.96 | Price 18.37 | Shares 2,008
Buy 11 Feb 2020
Value US$110,036.41 | Price 17.93 | Shares 6,137
Buy 31 Jan 2020
Value US$27,000.00 | Price 18.00 | Shares 1,500
Planned buy 31 Jan 2020
Value US$46,500.00 | Price 18.60 | Shares 2,500
Sale 4 Dec 2019
Value US$34,448.69 | Price 21.41 | Shares 1,609
Buy 26 Aug 2019
Value US$3,700.00 | Price 18.50 | Shares 200
Sale 5 Mar 2019
Value US$111,249.36 | Price 21.96 | Shares 5,066
Sale 4 Mar 2019
Value US$59,451.60 | Price 22.20 | Shares 2,678
Sale 10 Sep 2018
Value US$50,249.00 | Price 27.25 | Shares 1,844
Sale 10 Sep 2018
Value US$47,387.75 | Price 27.25 | Shares 1,739
Sale 7 Sep 2018
Value US$7,932.00 | Price 26.44 | Shares 300
Sale 17 Aug 2018
Value US$11,652.20 | Price 28.42 | Shares 410
Sale 17 Aug 2018
Value US$72,377.55 | Price 28.35 | Shares 2,553
Sale 4 Jun 2018
Value US$173,512.66 | Price 25.94 | Shares 6,689
Sale 31 Aug 2017
Value US$6,075.00 | Price 20.25 | Shares 300
Sale 9 Jun 2017
Value US$11,566.80 | Price 20.40 | Shares 567
Sale 9 Jun 2017
Value US$4,080.00 | Price 20.40 | Shares 200
Planned sale 5 May 2017
Value US$64,631.10 | Price 21.54 | Shares 3,000
Planned sale 4 May 2017
Value US$64,502.40 | Price 21.50 | Shares 3,000
Planned sale 3 May 2017
Value US$64,758.00 | Price 21.59 | Shares 3,000
Planned sale 2 May 2017
Value US$65,832.60 | Price 21.94 | Shares 3,000
Planned sale 1 May 2017
Value US$65,947.50 | Price 21.98 | Shares 3,000
Sale 6 Mar 2017
Value US$11,681.14 | Price 22.90 | Shares 510
Sale 27 Feb 2017
Value US$39,200.00 | Price 22.40 | Shares 1,750
Sale 21 Nov 2016
Value US$38,571.90 | Price 20.30 | Shares 1,900
Sale 15 Nov 2016
Value US$2,033.50 | Price 20.75 | Shares 98
Sale 15 Nov 2016
Value US$4,230.96 | Price 20.74 | Shares 204
Sale 15 Nov 2016
Value US$2,066.00 | Price 20.66 | Shares 100
Sale 15 Nov 2016
Value US$4,126.00 | Price 20.63 | Shares 200
Sale 15 Nov 2016
Value US$4,122.00 | Price 20.61 | Shares 200
Sale 15 Nov 2016
Value US$2,059.00 | Price 20.59 | Shares 100
Sale 15 Nov 2016
Value US$4,116.00 | Price 20.58 | Shares 200
Sale 15 Nov 2016
Value US$6,171.00 | Price 20.57 | Shares 300
Sale 15 Nov 2016
Value US$14,392.00 | Price 20.56 | Shares 700
Sale 15 Nov 2016
Value US$117,485.50 | Price 20.50 | Shares 5,731
Sale 6 Sep 2016
Value US$9,750.00 | Price 19.50 | Shares 500
Sale 16 Aug 2016
Value US$90,023.43 | Price 18.10 | Shares 4,974
Buy 8 Sep 2015
Value US$51,000.00 | Price 17.00 | Shares 3,000
Sale 24 Aug 2015
Value US$5,148.00 | Price 17.16 | Shares 300
Sale 3 Jun 2015
Value US$44,772.00 | Price 21.32 | Shares 2,100
Sale 3 Jun 2015
Value US$8,045.18 | Price 21.34 | Shares 377
Sale 3 Jun 2015
Value US$2,136.00 | Price 21.36 | Shares 100
Sale 3 Jun 2015
Value US$3,098.65 | Price 21.37 | Shares 145
Sale 3 Jun 2015
Value US$33,197.28 | Price 21.39 | Shares 1,552
Sale 3 Jun 2015
Value US$9,993.80 | Price 21.40 | Shares 467
Sale 3 Jun 2015
Value US$4,282.00 | Price 21.41 | Shares 200
Sale 3 Jun 2015
Value US$4,284.00 | Price 21.42 | Shares 200
Sale 3 Jun 2015
Value US$5,641.35 | Price 21.45 | Shares 263
Sale 3 Jun 2015
Value US$7,514.50 | Price 21.47 | Shares 350
Buy 4 Feb 2015
Value US$25,920.00 | Price 21.60 | Shares 1,200
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-23 2026-06-23 PrS Proposed sale
2.7
Thoren Daniel J.

Affiliate
97,466
267.02
US$2,933,954 		97,466 267.02 US$2,933,954
2025-09-15 2025-09-12 B Purchase
3.3
Gregorio Mauro
Non-Executive Director
53,223 +28.8%
174.49
US$166,907 		53,223 +28.8% 174.49 US$166,907
2023-02-21 2023-02-21 B Purchase
1.6
Smith Alan E

VP & General Manager - Batavia

Officer
48,699 +18.2%
332.69
US$3,868,500 		48,699 +18.2% 332.69 US$3,868,500
2022-08-05 2022-08-04 PP Planned purchase
2.7
Thoren Daniel J.

President and CEO

Executive Director
7,500 +2.4%
7.83
US$58,725 		7,500 +2.4% 7.83 US$58,725
2022-08-03 2022-08-02 B Purchase
2.7
Thoren Daniel J.

President and CEO

Executive Director
5,000 +1.6%
7.20
US$36,000 		5,000 +1.6% 7.20 US$36,000
2022-03-10 2022-03-09 S Sale
2.3
Glajch Jeffrey

VP-Finance; CFO

Officer
7,876 -12.6%
8.13
US$64,032 		7,876 -12.6% 8.13 US$64,032
2022-03-10 2022-03-08 S Sale
2.3
Glajch Jeffrey

VP-Finance; CFO

Officer
2,124 -3.3%
8.13
US$17,268 		2,124 -3.3% 8.13 US$17,268
2022-02-23 2022-02-22 B Purchase
2.7
Thoren Daniel J.

President and CEO

Officer
12,500 +4.3%
7.90
US$98,750 		12,500 +4.3% 7.90 US$98,750
2022-02-14 2022-02-11 B Purchase
2.2
Barber James J
Non-Executive Director
6,600 +20.8%
9.20
US$60,720 		6,600 +20.8% 9.20 US$60,720
2022-02-11 2022-02-10 B Purchase
1.6
Smith Alan E

VP & General Manager - Batavia

Officer
8,000 +15.6%
9.10
US$72,800 		8,000 +15.6% 9.10 US$72,800
2022-02-11 2022-02-10 B Purchase
1.2
Fortier Alan
Non-Executive Director
6,000 +19.3%
9.19
US$55,140 		6,000 +19.3% 9.19 US$55,140
2022-02-11 2022-02-10 B Purchase
3.2
PAINTER JONATHAN W
Non-Executive Director
2,500 +17.0%
9.08
US$22,700 		2,500 +17.0% 9.08 US$22,700
2022-02-10 2022-02-10 B Purchase
2.1
Schnorr Lisa M.
Non-Executive Director
5,000 +32.3%
9.10
US$45,500 		5,000 +32.3% 9.10 US$45,500
2021-12-09 2021-12-08 S Sale
2.3
Glajch Jeffrey

VP-Finance; CFO

Officer
2,893 -4.3%
12.75
US$36,886 		2,893 -4.3% 12.75 US$36,886
2021-03-09 2021-03-09 S Sale
2.3
Glajch Jeffrey

VP-Finance; CFO

Officer
1,800 -3.0%
16.73
US$30,114 		1,800 -3.0% 16.73 US$30,114
2021-03-08 2021-03-08 S Sale
2.3
Glajch Jeffrey

VP-Finance; CFO

Officer
5,193 -7.9%
16.04
US$83,296 		5,193 -7.9% 16.04 US$83,296
2021-03-08 2021-03-05 S Sale
2.3
Glajch Jeffrey

VP-Finance; CFO

Officer
3,007 -4.3%
15.90
US$47,811 		3,007 -4.3% 15.90 US$47,811
2021-03-08 2021-03-04 PlS Planned sale
2.3
Glajch Jeffrey

VP-Finance; CFO

Officer
5,800 -7.7%
15.93
US$92,394 		5,800 -7.7% 15.93 US$92,394
2020-06-15 2020-06-12 B Purchase
2.1
Schnorr Lisa M.
Non-Executive Director
811 +7.1%
12.31
US$9,983 		811 +7.1% 12.31 US$9,983
2020-03-05 2020-03-05 B Purchase
1.8
LINES JAMES R

President and CEO

Executive Director
2,500 +1.9%
15.70
US$39,250 		2,500 +1.9% 15.70 US$39,250
2020-02-25 2020-02-25 B Purchase
2.3
Glajch Jeffrey

VP-Finance; CFO

Officer
1,800 +3.1%
17.00
US$30,600 		1,800 +3.1% 17.00 US$30,600
2020-02-21 2020-02-21 B Purchase
1.8
LINES JAMES R

President and CEO

Executive Director
2,400 +1.8%
18.52
US$44,448 		2,400 +1.8% 18.52 US$44,448
2020-02-21 2020-02-20 B Purchase
1.8
LINES JAMES R

President and CEO

Executive Director
1,056 +0.8%
18.51
US$19,547 		1,056 +0.8% 18.51 US$19,547
2020-02-18 2020-02-14 B Purchase
1.8
LINES JAMES R

President and CEO

Executive Director
3,287 +2.6%
18.59
US$61,105 		3,287 +2.6% 18.59 US$61,105
2020-02-13 2020-02-13 B Purchase
1.8
LINES JAMES R

President and CEO

Executive Director
4,212 +3.4%
18.14
US$76,406 		4,212 +3.4% 18.14 US$76,406
2020-02-13 2020-02-12 B Purchase
1.8
LINES JAMES R

President and CEO

Executive Director
2,008 +1.7%
18.37
US$36,887 		2,008 +1.7% 18.37 US$36,887
2020-02-13 2020-02-11 B Purchase
1.8
LINES JAMES R

President and CEO

Executive Director
6,137 +5.4%
17.93
US$110,036 		6,137 +5.4% 17.93 US$110,036
2020-02-03 2020-01-31 B Purchase
2.3
Glajch Jeffrey

VP-Finance; CFO
1,500 +2.6%
18.00
US$27,000 		1,500 +2.6% 18.00 US$27,000
2020-02-03 2020-01-31 PP Planned purchase
2.3
Glajch Jeffrey

VP-Finance; CFO
2,500 +4.6%
18.60
US$46,500 		2,500 +4.6% 18.60 US$46,500
2019-12-05 2019-12-04 S Sale Condame Jennifer R

CAO and Controller

Officer
1,609 -6.2%
21.41
US$34,449 		1,609 -6.2% 21.41 US$34,449
2019-08-26 2019-08-26 B Purchase Rice John N

Vice President of Sales

Officer
200 +1.9%
18.50
US$3,700 		200 +1.9% 18.50 US$3,700
2019-03-06 2019-03-05 S Sale
1.8
LINES JAMES R

President and CEO

Executive Director
5,066 -4.5%
21.96
US$111,249 		5,066 -4.5% 21.96 US$111,249
2019-03-06 2019-03-04 S Sale
3.0
Condame Jennifer R

CAO and Controller
2,678 -10.2%
22.20
US$59,452 		2,678 -10.2% 22.20 US$59,452
2018-09-11 2018-09-10 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
1,844 -3.3%
27.25
US$50,249 		1,844 -3.3% 27.25 US$50,249
2018-09-11 2018-09-10 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
1,739 -3.1%
27.25
US$47,388 		1,739 -3.1% 27.25 US$47,388
2018-09-10 2018-09-07 S Sale MAZURKIEWICZ GERARD T Non-Executive Director
300 -2.5%
26.44
US$7,932 		300 -2.5% 26.44 US$7,932
2018-08-20 2018-08-17 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
410 -0.7%
28.42
US$11,652 		410 -0.7% 28.42 US$11,652
2018-08-20 2018-08-17 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
2,553 -4.4%
28.35
US$72,378 		2,553 -4.4% 28.35 US$72,378
2018-06-05 2018-06-04 S Sale Smith Alan E

VP & General Manager - Batavia

Officer
6,689 -14.6%
25.94
US$173,513 		6,689 -14.6% 25.94 US$173,513
2017-09-01 2017-08-31 S Sale MAZURKIEWICZ GERARD T
300 -2.6%
20.25
US$6,075 		300 -2.6% 20.25 US$6,075
2017-06-12 2017-06-09 S Sale Condame Jennifer R

CAO and Controller
567 -2.7%
20.40
US$11,567 		567 -2.7% 20.40 US$11,567
2017-06-12 2017-06-09 S Sale Condame Jennifer R

CAO and Controller
200 -0.9%
20.40
US$4,080 		200 -0.9% 20.40 US$4,080
2017-05-05 2017-05-05 PlS Planned sale LINES JAMES R

President and CEO

Executive Director
3,000 -3.4%
21.54
US$64,631 		3,000 -3.4% 21.54 US$64,631
2017-05-05 2017-05-04 PlS Planned sale LINES JAMES R

President and CEO

Executive Director
3,000 -3.3%
21.50
US$64,502 		3,000 -3.3% 21.50 US$64,502
2017-05-03 2017-05-03 PlS Planned sale LINES JAMES R

President and CEO

Executive Director
3,000 -3.2%
21.59
US$64,758 		3,000 -3.2% 21.59 US$64,758
2017-05-03 2017-05-02 PlS Planned sale LINES JAMES R

President and CEO

Executive Director
3,000 -3.1%
21.94
US$65,833 		3,000 -3.1% 21.94 US$65,833
2017-05-03 2017-05-01 PlS Planned sale LINES JAMES R

President and CEO

Executive Director
3,000 -3.0%
21.98
US$65,948 		3,000 -3.0% 21.98 US$65,948
2017-03-07 2017-03-06 S Sale Smith Alan E

VP & General Manager - Batavia
510 -1.6%
22.90
US$11,681 		510 -1.6% 22.90 US$11,681
2017-02-28 2017-02-27 S Sale MAZURKIEWICZ GERARD T Non-Executive Director
1,750 -14.5%
22.40
US$39,200 		1,750 -14.5% 22.40 US$39,200
2016-11-22 2016-11-21 S Sale MAZURKIEWICZ GERARD T Non-Executive Director
1,900 -16.6%
20.30
US$38,572 		1,900 -16.6% 20.30 US$38,572
2016-11-16 2016-11-15 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
98 -0.2%
20.75
US$2,034 		98 -0.2% 20.75 US$2,034
2016-11-16 2016-11-15 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
204 -0.4%
20.74
US$4,231 		204 -0.4% 20.74 US$4,231
2016-11-16 2016-11-15 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
100 -0.2%
20.66
US$2,066 		100 -0.2% 20.66 US$2,066
2016-11-16 2016-11-15 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
200 -0.4%
20.63
US$4,126 		200 -0.4% 20.63 US$4,126
2016-11-16 2016-11-15 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
200 -0.4%
20.61
US$4,122 		200 -0.4% 20.61 US$4,122
2016-11-16 2016-11-15 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
100 -0.2%
20.59
US$2,059 		100 -0.2% 20.59 US$2,059
2016-11-16 2016-11-15 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
200 -0.4%
20.58
US$4,116 		200 -0.4% 20.58 US$4,116
2016-11-16 2016-11-15 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
300 -0.6%
20.57
US$6,171 		300 -0.6% 20.57 US$6,171
2016-11-16 2016-11-15 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
700 -1.3%
20.56
US$14,392 		700 -1.3% 20.56 US$14,392
2016-11-16 2016-11-15 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
5,731 -9.9%
20.50
US$117,486 		5,731 -9.9% 20.50 US$117,486
2016-09-12 2016-09-06 S Sale MAZURKIEWICZ GERARD T Non-Executive Director
500 -5.3%
19.50
US$9,750 		500 -5.3% 19.50 US$9,750
2016-08-17 2016-08-16 S Sale Condame Jennifer R

CAO and Controller

Officer
4,974 -21.5%
18.10
US$90,023 		4,974 -21.5% 18.10 US$90,023
2015-09-10 2015-09-08 B Purchase Barber James J Non-Executive Director
3,000 +27.2%
17.00
US$51,000 		3,000 +27.2% 17.00 US$51,000
2015-08-26 2015-08-24 S Sale MAZURKIEWICZ GERARD T Non-Executive Director
300 -3.6%
17.16
US$5,148 		300 -3.6% 17.16 US$5,148
2015-06-05 2015-06-03 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
2,100 -4.3%
21.32
US$44,772 		2,100 -4.3% 21.32 US$44,772
2015-06-05 2015-06-03 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
377 -0.8%
21.34
US$8,045 		377 -0.8% 21.34 US$8,045
2015-06-05 2015-06-03 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
100 -0.2%
21.36
US$2,136 		100 -0.2% 21.36 US$2,136
2015-06-05 2015-06-03 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
145 -0.3%
21.37
US$3,099 		145 -0.3% 21.37 US$3,099
2015-06-05 2015-06-03 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
1,552 -3.1%
21.39
US$33,197 		1,552 -3.1% 21.39 US$33,197
2015-06-05 2015-06-03 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
467 -0.9%
21.40
US$9,994 		467 -0.9% 21.40 US$9,994
2015-06-05 2015-06-03 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
200 -0.4%
21.41
US$4,282 		200 -0.4% 21.41 US$4,282
2015-06-05 2015-06-03 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
200 -0.4%
21.42
US$4,284 		200 -0.4% 21.42 US$4,284
2015-06-05 2015-06-03 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
263 -0.5%
21.45
US$5,641 		263 -0.5% 21.45 US$5,641
2015-06-05 2015-06-03 S Sale Glajch Jeffrey

VP-Finance; CFO

Officer
350 -0.7%
21.47
US$7,514 		350 -0.7% 21.47 US$7,514
2015-02-05 2015-02-04 B Purchase Barber James J Non-Executive Director
1,200 +13.7%
21.60
US$25,920 		1,200 +13.7% 21.60 US$25,920
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