Graham Corporation
Graham Corporation (GHM) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · GHM · as of Mar 31, 2025
Ownership Breakdown
125
Institutional Holders
▼ 10 vs Q4
$244.12M
Total Inst. Value
▼ $129.33M vs Q4
11.07M
Shares Outstanding
freeFloat 93.88%
8.47M
13F Shares Held
▲ 71,496 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
GHM largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BRANDES INVESTMENT PARTNERS, LP general industrial machinery & equipment | 1.36M | 12.51% | 12.51% | $39.26B | May 15, 2025 | ▲ 258.3K |
BLACKROCK, INC. general industrial machinery & equipment | 810.8K | 7.45% | 7.45% | $23.37B | May 2, 2025 | ▲ 40.1K |
VANGUARD GROUP INC general industrial machinery & equipment | 665.9K | 6.11% | 6.11% | $19.19B | May 9, 2025 | ▲ 11.9K |
DIMENSIONAL FUND ADVISORS LP general industrial machinery & equipment | 368.2K | 3.38% | 3.38% | $10.61B | May 13, 2025 | ▼ 29.3K |
FIRST EAGLE INVESTMENT MANAGEMENT, LLC general industrial machinery & equipment | 368.2K | 3.38% | 3.38% | $10.61B | May 12, 2025 | ▲ 15.2K |
ROYCE & ASSOCIATES LP general industrial machinery & equipment | 356.5K | 3.27% | 3.27% | $10.28B | May 6, 2025 | ▼ 31.5K |
RENAISSANCE TECHNOLOGIES LLC general industrial machinery & equipment | 327.7K | 3.01% | 3.01% | $9.44B | May 14, 2025 | ▼ 47.7K |
WASATCH ADVISORS LP general industrial machinery & equipment | 298.1K | 2.74% | 2.74% | $8.59B | May 15, 2025 | ▼ 4.9K |
GAMCO INVESTORS, INC. ET AL general industrial machinery & equipment | 281.3K | 2.58% | 2.58% | $8.11B | May 14, 2025 | ▲ 4.8K |
GEODE CAPITAL MANAGEMENT, LLC general industrial machinery & equipment | 236.1K | 2.17% | 2.17% | $6.81B | May 13, 2025 | ▲ 5.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
26
Increased
+801.8K shares3
New Positions
first time holders18
Decreased
−310.7K shares0
Sold Out
fully exitedNet shares change (top 50)
+491.1K
+801.8K / −310.7K
Net new holders
+11
3 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
GHM insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
3
Buy transactions
6
Sell transactions
0.50
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Malone Matthew President and CEO | May 17, 2026 | Tax Withhold | 682 | $98.28 | $67.0K | 54.8K | Form 4 ↗ |
Thome Christopher J. VP-Finance; CFO | May 17, 2026 | Tax Withhold | 900 | $98.28 | $88.5K | 28.8K | Form 4 ↗ |
Thoren Daniel J. Executive Chairman | May 17, 2026 | Tax Withhold | 1,800 | $98.28 | $176.9K | 356.6K | Form 4 ↗ |
Dixon Michael E. VP & GM of Barber-Nichols | Feb 4, 2026 | Tax Withhold | 120 | $73.19 | $8.8K | 736 | Form 4 ↗ |
Gregorio Mauro director | Sep 12, 2025 | Purchase | 1,200 | $49.01 | $58.8K | 1.2K | Form 4 ↗ |
Gregorio Mauro director | Sep 2, 2025 | Award | 936 | — | — | 936 | Form 4 ↗ |
Thoren Daniel J. Executive Chairman | Jun 9, 2025 | Award | 20,513 | — | — | 359.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Graham Corporation (GHM) is primarily owned by institutional investors, who hold approximately 76.5% of total shares outstanding. Company insiders own approximately 6.12%, while retail and public investors account for the remaining 17.40%.
The largest institutional shareholder of Graham Corporation is BRANDES INVESTMENT PARTNERS, LP, holding approximately 1.36 million shares — equal to 12.51% of outstanding shares — as of March 31, 2025.
A total of 125 institutional investors currently hold GHM stock, with a combined institutional value of approximately $244,119,955 as of the most recent 13F filing period.
Frequently asked questions
GHM ownershipGraham Corporation (GHM) is primarily owned by institutional investors, who hold approximately 76.5% of shares. The largest shareholder is BRANDES INVESTMENT PARTNERS, LP with a 12.51% stake. Company insiders hold 6.12%. Data sourced from SEC Form 13F as of March 31, 2025.