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 Sep 30, 2025
Ownership Breakdown
161
Institutional Holders
▲ 22 vs Q2
$487.04M
Total Inst. Value
▲ $60.86M vs Q2
11.07M
Shares Outstanding
freeFloat 93.88%
8.87M
13F Shares Held
▲ 263,504 vs Q2
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
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BRANDES INVESTMENT PARTNERS, LP general industrial machinery & equipment | 1.37M | 12.56% | 12.56% | $75.33B | Nov 14, 2025 | ▲ 55.7K |
BLACKROCK, INC. general industrial machinery & equipment | 773.3K | 7.08% | 7.08% | $42.46B | Nov 12, 2025 | ▼ 26.6K |
VANGUARD GROUP INC general industrial machinery & equipment | 602.4K | 5.51% | 5.51% | $33.07B | Nov 7, 2025 | ▲ 13.0K |
ROYCE & ASSOCIATES LP general industrial machinery & equipment | 459.7K | 4.21% | 4.21% | $25.24B | Nov 12, 2025 | ▲ 89.0K |
RENAISSANCE TECHNOLOGIES LLC general industrial machinery & equipment | 308.7K | 2.82% | 2.82% | $16.95B | Nov 13, 2025 | ▼ 16.4K |
FIRST EAGLE INVESTMENT MANAGEMENT, LLC general industrial machinery & equipment | 306.7K | 2.81% | 2.81% | $16.84B | Nov 12, 2025 | ▼ 40.0K |
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC general industrial machinery & equipment | 274.0K | 2.51% | 2.51% | $15.04B | Nov 12, 2025 | NEW |
GAMCO INVESTORS, INC. ET AL general industrial machinery & equipment | 269.4K | 2.47% | 2.47% | $14.79B | Nov 12, 2025 | ▼ 9.6K |
AMERICAN CENTURY COMPANIES INC general industrial machinery & equipment | 257.4K | 2.36% | 2.36% | $14.13B | Nov 12, 2025 | ▼ 8.1K |
DIMENSIONAL FUND ADVISORS LP general industrial machinery & equipment | 251.5K | 2.30% | 2.30% | $13.81B | Nov 12, 2025 | ▼ 48.5K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
17
Increased
+368.9K shares4
New Positions
first time holders24
Decreased
−505.8K shares0
Sold Out
fully exitedNet shares change (top 50)
136.9K
+368.9K / −505.8K
Net new holders
-3
4 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 80.1% of total shares outstanding. Company insiders own approximately 6.12%, while retail and public investors account for the remaining 13.76%.
The largest institutional shareholder of Graham Corporation is BRANDES INVESTMENT PARTNERS, LP, holding approximately 1.37 million shares — equal to 12.56% of outstanding shares — as of September 30, 2025.
A total of 161 institutional investors currently hold GHM stock, with a combined institutional value of approximately $487,035,794 as of the most recent 13F filing period.
Frequently asked questions
GHM ownershipGraham Corporation (GHM) is primarily owned by institutional investors, who hold approximately 80.1% of shares. The largest shareholder is BRANDES INVESTMENT PARTNERS, LP with a 12.56% stake. Company insiders hold 6.12%. Data sourced from SEC Form 13F as of September 30, 2025.