Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in GHM held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BRANDES INVESTMENT PARTNERS, LP | 1.2M | $92.4M | -6.1% | 10.016% | 0.65% |
| 2 | BlackRock, Inc. | 767K | $60.5M | -1.3% | 6.558% | 0.00% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 454K | $35.8M | — | 3.882% | 0.00% |
| 4 | ROYCE & ASSOCIATES LP | 449K | $35.4M | -5.0% | 3.838% | 0.35% |
| 5 | DRIEHAUS CAPITAL MANAGEMENT LLC | 343K | $27.1M | -3.4% | 2.933% | 0.20% |
| 6 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 314K | $24.8M | +5.5% | 2.688% | 0.08% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 248K | $19.6M | +2.6% | 2.123% | 0.00% |
| 8 | RENAISSANCE TECHNOLOGIES LLC | 247K | $19.5M | -7.8% | 2.116% | 0.03% |
| 9 | GAMCO INVESTORS, INC. ET AL | 244K | $19.2M | -3.9% | 2.086% | 0.19% |
| 10 | MORGAN STANLEY | 243K | $19.2M | -0.2% | 2.077% | 0.00% |
| 11 | DIMENSIONAL FUND ADVISORS LP | 225K | $17.8M | -2.5% | 1.924% | 0.00% |
| 12 | First Eagle Investment Management, LLC | 216K | $17.0M | -23.1% | 1.843% | 0.02% |
| 13 | ROYAL BANK OF CANADA | 214K | $16.9M | -12.8% | 1.832% | 0.00% |
| 14 | STATE STREET CORP | 214K | $16.9M | -2.5% | 1.829% | 0.00% |
| 15 | AGMAN CAPITAL LLC | 202K | $15.9M | -7.9% | 1.726% | 12.68% |
| 16 | CAPTRUST FINANCIAL ADVISORS | 154K | $12.1M | — | 1.315% | 0.02% |
| 17 | AMERICAN CENTURY COMPANIES INC | 131K | $10.4M | -28.2% | 1.123% | 0.01% |
| 18 | ESSEX INVESTMENT MANAGEMENT CO LLC | 128K | $10.1M | -8.8% | 1.097% | 1.60% |
| 19 | R.P. Boggs & Co. | 118K | $9.6M | — | 1.007% | 4.63% |
| 20 | VANGUARD PORTFOLIO MANAGEMENT LLC | 116K | $9.2M | — | 0.994% | 0.00% |
| 21 | KENNEDY CAPITAL MANAGEMENT, INC. | 110K | $8.6M | +1.8% | 0.937% | 0.18% |
| 22 | DIAMOND HILL CAPITAL MANAGEMENT INC | 109K | $8.6M | -27.1% | 0.931% | 0.05% |
| 23 | Portolan Capital Management, LLC | 104K | $8.2M | — | 0.886% | 0.43% |
| 24 | EXCHANGE TRADED CONCEPTS, LLC | 101K | $8.0M | -25.1% | 0.862% | 0.06% |
| 25 | UBS Group AG | 98K | $7.7M | +83.8% | 0.836% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in GHM — a direct measure of their conviction.
Filings activity in GHM during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new GHM position in Q1 2026
Institutions that fully closed their GHM position in Q1 2026
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 176 | +11% | 56.92% | +10.71 pp | $691M | +23% |
| Q4 2025 | 159 | +1.3% | 46.21% | +7.15 pp | $561M | +18% |
| Q3 2025 | 157 | +15% | 39.06% | +5.01 pp | $474M | +15% |
| Q2 2025 | 136 | +12% | 34.05% | +14.69 pp | $414M | +76% |
| Q1 2025 | 121 | 7.6% | 19.36% | 10.09 pp | $235M | 34% |
| Q4 2024 | 131 | +19% | 29.45% | +9.97 pp | $358M | +51% |
| Q3 2024 | 110 | +7.8% | 19.48% | +1.63 pp | $237M | +9.1% |
| Q2 2024 | 102 | — | 17.85% | — | $217M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying GHM stock.
Based on Q1 2026 13F filings, institutional ownership of Graham Corporation stands at 56.9%, held across 176 reporting institutions.
BRANDES INVESTMENT PARTNERS, LP is the largest reported institutional holder of GHM, with approximately 1,170,981 shares worth $0.09B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of GHM, including RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for GHM is 63 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
44 institutions opened new positions in GHM during Q1 2026, while 27 fully exited. 109 added to existing positions and 22 trimmed.
GHM institutional ownership rose by 10.71 percentage points quarter-over-quarter, with a net change of +17 holders.
The top 10 institutions account for 51.1% of all reported 13F value in GHM, and the top 25 account for 76.7%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Graham Corporation (GHM) Institutional Ownership