Graham Corporation
US ˙ NYSE ˙ US3845561063

SecurityGHM / Graham Corporation
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership224,976 shares
Latest Disclosed Value $ 17,753,674
Dimensional Fund Advisors Lp reports 2.54% decrease in ownership of GHM / Graham Corporation

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 224,976 shares of Graham Corporation (US:GHM) valued at $17,755,106 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 230,851 shares of Graham Corporation. This represents a change in shares of -2.54% during the quarter. The current value of the position is $24,094,930 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F GRAHAM COM 384556106 224,976 -5,875 -2.54 17,754 19.73 0.0008
2026-02-12 2025-12-31 13F GRAHAM COM 384556106 230,851 -20,655 -8.21 14,828 7.40 0.0031
2025-11-12 2025-09-30 13F GRAHAM COM 384556106 251,506 -48,525 -16.17 13,806 -7.06 0.0030
2025-08-12 2025-06-30 13F GRAHAM COM 384556106 300,031 -68,208 -18.52 14,855 39.98 0.0034
2025-05-13 2025-03-31 13F GRAHAM COM 384556106 368,239 -29,345 -7.38 10,612 -39.98 0.0026
2025-02-13 2024-12-31 13F GRAHAM COM 384556106 397,584 -11,452 -2.80 17,681 46.09 0.0042
2024-11-07 2024-09-30 13F GRAHAM COM 384556106 409,036 -3,758 -0.91 12,103 4.12 0.0029
2024-08-09 2024-06-30 13F GRAHAM COM 384556106 412,794 -5,818 -1.39 11,624 1.80 0.0030
2024-05-10 2024-03-31 13F GRAHAM COM 384556106 418,612 -19,581 -4.47 11,420 37.38 0.0031
2024-02-07 2023-12-31 13F GRAHAM COM 384556106 438,193 19,193 4.58 8,313 19.51 0.0024
2023-11-09 2023-09-30 13F GRAHAM COM 384556106 419,000 13,735 3.39 6,956 29.25 0.0023
2023-08-09 2023-06-30 13F GRAHAM COM 384556106 405,265 18,326 4.74 5,382 6.32 0.0017
2023-05-12 2023-03-31 13F GRAHAM COM 384556106 386,939 32,543 9.18 5,061 168,600.00 0.0017
2023-02-09 2022-12-31 13F GRAHAM COM 384556106 354,396 -1,327 -0.37 3 -99.90 0.0010
2022-11-10 2022-09-30 13F GRAHAM COM 384556106 355,723 -28,634 -7.45 3,126 17.52 0.0012
2022-08-12 2022-06-30 13F GRAHAM COM 384556106 384,357 -259 -0.07 2,660 -10.32 0.0010
2022-05-13 2022-03-31 13F GRAHAM COM 384556106 384,616 13,471 3.63 2,966 -35.76 0.0009
2022-02-09 2021-12-31 13F GRAHAM COM 384556106 371,145 -15,428 -3.99 4,617 -3.69 0.0014
2021-11-12 2021-09-30 13F GRAHAM COM 384556106 386,573 -29,249 -7.03 4,794 -16.22 0.0015
2021-08-12 2021-06-30 13F GRAHAM COM 384556106 415,822 13,786 3.43 5,722 -0.05 0.0018
2021-05-14 2021-03-31 13F GRAHAM COM 384556106 402,036 2,021 0.51 5,725 -5.73 0.0019
2021-03-08 2020-12-31 13F/A-2 GRAHAM COM 384556106 400,015 -16,895 -4.05 6,073 14.07 0.0022
2021-02-11 2020-12-31 13F GRAHAM COM 384556106 400,015 -16,895 6,073 2,193.2448
2020-11-12 2020-09-30 13F GRAHAM COM 384556106 416,910 -3,870 -0.92 5,324 -0.69 0.0023
2020-08-13 2020-06-30 13F GRAHAM COM 384556106 420,780 -27,738 -6.18 5,361 -7.35 0.0024
2020-05-14 2020-03-31 13F GRAHAM COM 384556106 448,518 -14,452 -3.12 5,786 -42.88 0.0030
2020-02-14 2019-12-31 13F GRAHAM COM 384556106 462,970 -11,065 -2.33 10,130 7.61 0.0037
2019-11-12 2019-09-30 13F GRAHAM COM 384556106 474,035 -5,946 -1.24 9,414 -2.95 0.0037
2019-08-13 2019-06-30 13F GRAHAM COM 384556106 479,981 0 0.00 9,700 2.95 0.0038
2019-08-12 2019-03-31 13F/A-2 GRAHAM COM 384556106 479,981 1,660 0.35 9,422 -13.76 0.0038
2019-05-10 2019-03-31 13F GRAHAM COM 384556106 479,981 1,660 9,422
2019-02-26 2018-12-31 13F/A-1 GRAHAM COM 384556106 478,321 -1,598 -0.33 10,925 -19.19 0.0049
2019-02-13 2018-12-31 13F GRAHAM COM 384556106 478,321 -1,598 10,925
2018-11-13 2018-09-30 13F GRAHAM COM 384556106 479,919 13,143 2.82 13,519 12.21 0.0051
2018-08-10 2018-06-30 13F GRAHAM COM 384556106 466,776 -1,206 -0.26 12,048 20.19 0.0048
2018-05-11 2018-03-31 13F GRAHAM COM 384556106 467,982 13,344 2.94 10,024 5.34 0.0042
2018-02-12 2017-12-31 13F GRAHAM COM 384556106 454,638 27,175 6.36 9,516 6.87 0.0039
2017-11-13 2017-09-30 13F GRAHAM COM 384556106 427,463 30,941 7.80 8,904 14.21 0.0039
2017-08-11 2017-06-30 13F GRAHAM COM 384556106 396,522 31,833 8.73 7,796 -7.06 0.0036
2017-05-12 2017-03-31 13F GRAHAM COM 384556106 364,689 25,940 7.66 8,388 11.80 0.0040
2017-02-09 2016-12-31 13F GRAHAM COM 384556106 338,749 9,315 2.83 7,503 19.25 0.0037
2016-11-10 2016-09-30 13F GRAHAM COM 384556106 329,434 3,909 1.20 6,292 4.94 0.0034
2016-08-09 2016-06-30 13F GRAHAM COM 384556106 325,525 17,289 5.61 5,996 -2.30 0.0035
2016-05-13 2016-03-31 13F GRAHAM COM 384556106 308,236 18,993 6.57 6,137 26.15 0.0037
2016-02-10 2015-12-31 13F GRAHAM COM 384556106 289,243 19,319 7.16 4,865 2.12 0.0030
2015-11-13 2015-09-30 13F GRAHAM COM 384556106 269,924 5,086 1.92 4,764 -12.22 0.0031
2015-08-14 2015-06-30 13F GRAHAM COM 384556106 264,838 -1,925 -0.72 5,427 -15.12 0.0033
2015-05-14 2015-03-31 13F GRAHAM COM 384556106 266,763 1,294 0.49 6,394 -16.28 0.0040
2015-02-06 2014-12-31 13F GRAHAM COM 384556106 265,469 14,363 5.72 7,637 5.79 0.0050
2014-11-13 2014-09-30 13F GRAHAM COM 384556106 251,106 -2,711 -1.07 7,219 -18.29 0.0051
2014-08-08 2014-06-30 13F GRAHAM COM 384556106 253,817 12,196 5.05 8,835 14.80 0.0061
2014-05-14 2014-03-31 13F GRAHAM COM 384556106 241,621 732 0.30 7,696 -11.97 0.0058
2014-02-12 2013-12-31 13F GRAHAM COM 384556106 240,889 10,598 4.60 8,742 5.07 0.0068
2013-11-13 2013-09-30 13F GRAHAM COM 384556106 230,291 7,702 3.46 8,320 24.48 0.0072
2013-08-15 2013-06-30 13F GRAHAM COM 384556106 222,589 222,589 6,684 0.0063
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.