GHM Graham Corporation
Graham Corporation (GHM) Institutional Ownership
What the institutions did with GHM last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BRANDES INVESTMENT PARTNERS, LP | 1.1M | 10.1% |
| BlackRock, Inc. | 890.5K | 8.3% |
| T. Rowe Price Investment Management, Inc. | 607.3K | 5.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 485.6K | 4.5% |
| ROYCE & ASSOCIATES LP | 446.4K | 4.2% |
| First Eagle Investment Management, LLC | 388.2K | 3.6% |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 364.8K | 3.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 303.9K | 2.8% |
| Driehaus Capital Management LLC | 293.2K | 2.7% |
| STATE STREET CORP | 242.1K | 2.3% |
| GAMCO INVESTORS, INC. ET AL | 221.9K | 2.1% |
| DIMENSIONAL FUND ADVISORS LP | 221.5K | 2.1% |
| MORGAN STANLEY | 213.5K | 2.0% |
| RENAISSANCE TECHNOLOGIES LLC | 207.8K | 1.9% |
| AGMAN CAPITAL LLC | 181.0K | 1.7% |
| SEGALL BRYANT & HAMILL, LLC | 180.3K | 1.7% |
| ROYAL BANK OF CANADA | 178.1K | 1.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 144.1K | 1.3% |
| CAPTRUST FINANCIAL ADVISORS | 143.5K | 1.3% |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 142.7K | 1.3% |
| Portolan Capital Management, LLC | 136.9K | 1.3% |
| KENNEDY CAPITAL MANAGEMENT LLC | 127.1K | 1.2% |
| Invesco Ltd. | 124.9K | 1.2% |
| Catawba River Capital | 117.6K | 1.1% |
| EXCHANGE TRADED CONCEPTS, LLC | 104.1K | 1.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | New | 0 | 607.3K | +607.3K |
| SEGALL BRYANT & HAMILL, LLC | New | 0 | 180.3K | +180.3K |
| First Eagle Investment Management, LLC | Increased | 215.5K | 388.2K | +172.7K |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | New | 0 | 142.7K | +142.7K |
| BlackRock, Inc. | Increased | 766.7K | 890.5K | +123.8K |
| AMERICAN CENTURY COMPANIES INC | Reduced | 131.4K | 28.9K | -102.5K |
| BRANDES INVESTMENT PARTNERS, LP | Reduced | 1.2M | 1.1M | -91.3K |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC | Increased | 19.1K | 104.0K | +84.9K |
| Invesco Ltd. | Increased | 51.4K | 124.9K | +73.6K |
| TWO SIGMA INVESTMENTS, LP | Increased | 7.7K | 77.3K | +69.5K |
| NEXT CENTURY GROWTH INVESTORS LLC | New | 0 | 60.5K | +60.5K |
| Allspring Global Investments Holdings, LLC | New | 0 | 60.4K | +60.4K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 248.2K | 303.9K | +55.8K |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Increased | 314.3K | 364.8K | +50.5K |
| Driehaus Capital Management LLC | Reduced | 342.9K | 293.2K | -49.7K |
| JANE STREET GROUP, LLC | Increased | 13.0K | 62.0K | +49.0K |
| CenterBook Partners LP | Sold Out | 44.9K | 0 | -44.9K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 247.4K | 207.8K | -39.6K |
| Lisanti Capital Growth, LLC | New | 0 | 39.0K | +39.0K |
| Moody Aldrich Partners LLC | New | 0 | 38.1K | +38.1K |
| MIRABELLA FINANCIAL SERVICES LLP | Reduced | 39.2K | 2.6K | -36.6K |
| Squarepoint Ops LLC | New | 0 | 36.2K | +36.2K |
| ROYAL BANK OF CANADA | Reduced | 214.1K | 178.1K | -36.1K |
| DIAMOND HILL CAPITAL MANAGEMENT INC | Reduced | 108.9K | 73.3K | -35.6K |
| ESSEX INVESTMENT MANAGEMENT CO LLC | Reduced | 128.3K | 93.4K | -34.9K |
| Portolan Capital Management, LLC | Increased | 103.6K | 136.9K | +33.4K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 453.8K | 485.6K | +31.8K |
| Advisors Asset Management, Inc. | Increased | 37.3K | 67.8K | +30.5K |
| MORGAN STANLEY | Reduced | 242.8K | 213.5K | -29.3K |
| STATE STREET CORP | Increased | 213.9K | 242.1K | +28.2K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 116.2K | 144.1K | +27.9K |
| MILLENNIUM MANAGEMENT LLC | Sold Out | 27.7K | 0 | -27.7K |
| AMERIPRISE FINANCIAL INC | Increased | 10.5K | 37.8K | +27.3K |
| CITADEL ADVISORS LLC | New | 0 | 25.5K | +25.5K |
| PANAGORA ASSET MANAGEMENT INC | Sold Out | 25.3K | 0 | -25.3K |
| GAMCO INVESTORS, INC. ET AL | Reduced | 243.9K | 221.9K | -22.0K |
| AGMAN CAPITAL LLC | Reduced | 201.8K | 181.0K | -20.8K |
| Swiss National Bank | New | 0 | 20.6K | +20.6K |
| Russell Investments Group, Ltd. | Reduced | 77.5K | 57.3K | -20.2K |
| SEI INVESTMENTS CO | Reduced | 63.6K | 44.9K | -18.6K |
| LORD, ABBETT & CO. LLC | New | 0 | 17.5K | +17.5K |
| KENNEDY CAPITAL MANAGEMENT LLC | Increased | 109.6K | 127.1K | +17.5K |
| NORTHERN TRUST CORP | Increased | 87.5K | 102.6K | +15.1K |
| ACADIAN ASSET MANAGEMENT LLC | Sold Out | 14.4K | 0 | -14.4K |
| Nuveen, LLC | Increased | 21.1K | 35.5K | +14.3K |
| CREDIT AGRICOLE S A | Increased | 14.3K | 28.4K | +14.1K |
| VARCOV Co. | Sold Out | 13.9K | 0 | -13.9K |
| TD Asset Management Inc | New | 0 | 13.5K | +13.5K |
| Quadrature Capital Ltd | New | 0 | 12.6K | +12.6K |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | Reduced | 57.1K | 44.6K | -12.5K |
| Pathstone Holdings, LLC | New | 0 | 11.3K | +11.3K |
| Legato Capital Management LLC | Increased | 45.0K | 56.3K | +11.3K |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | Increased | 563 | 11.4K | +10.8K |
| HSBC HOLDINGS PLC | Sold Out | 10.5K | 0 | -10.5K |
| SIMPLEX TRADING, LLC | New | 0 | 10.5K | +10.5K |
| Aquatic Capital Management LLC | New | 0 | 10.4K | +10.4K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Reduced | 10.7K | 402 | -10.3K |
| CAPTRUST FINANCIAL ADVISORS | Reduced | 153.7K | 143.5K | -10.2K |
| XTX Topco Ltd | Reduced | 12.9K | 3.5K | -9.4K |
| MARSHALL WACE, LLP | New | 0 | 8.9K | +8.9K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.