GRC · Gorman Rupp Co · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Superinvestors Holding GRC
All superinvestors →Holder Concentration
Across 250 13F filersWho Holds GRC
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 248 filers, like-for-like change +2.0%; actively managed books -0.6%; index-like books +8.0%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 54.7% | 125 | -0.3% |
| Exempt adviser | 0.0% | 1 | -74.7% |
| Adviser | 1.5% | 8 | +53.3% |
| Bank | 10.4% | 18 | -0.5% |
| Insurer | 0.1% | 2 | +8.8% |
| Broker-dealer | 0.1% | 1 | -10.3% |
| Benefit plan | 0.7% | 5 | +37.8% |
| Non-US | 0.4% | 8 | +16.1% |
| Holding company | 13.1% | 8 | +5.4% |
| Unknown | 19.0% | 72 | +4.5% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 31.4% | 28 | +8.0% |
| Systematic-like | 2.0% | 14 | +77.7% |
| Concentrated | 6.6% | 30 | +0.7% |
| Diversified active | 60.0% | 176 | -2.2% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 70.4% | 148 | +3.8% |
| Medium turnover | 13.7% | 54 | -14.6% |
| High turnover | 2.8% | 24 | +83.1% |
| Unknown | 13.1% | 22 | +3.7% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 14.1% | 33 | +7.2% |
| Medium horizon | 16.3% | 33 | +17.5% |
| Long horizon | 68.0% | 174 | -2.5% |
| Unknown | 1.5% | 8 | +21.4% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 10.4% | 51 | -2.2% |
| $1B to $10B | 5.7% | 54 | +12.9% |
| $10B to $100B | 22.7% | 80 | -1.3% |
| $100B or more | 61.3% | 63 | +3.0% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 6.0% | 66 | -0.7% |
| Pooled investment vehicles | 1.9% | 12 | +5.7% |
| Registered funds and BDCs | 37.2% | 19 | -1.5% |
| Pension and profit sharing plans | 0.1% | 2 | +11.2% |
| Insurance companies | 0.1% | 3 | +10.0% |
| Governments and sovereign funds | 1.1% | 6 | +76.8% |
| Other investment advisers | 0.1% | 3 | +0.5% |
| Diversified | 8.3% | 14 | -1.6% |
| Corporations | 0.0% | 0 | — |
| Unknown | 45.3% | 123 | +4.8% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 11.1% | 25 | -0.1% |
| Private equity funds | 5.6% | 7 | -19.3% |
| Venture capital funds | 0.0% | 1 | 0.0% |
| Real estate funds | 0.0% | 2 | +663.9% |
| Securitized asset funds | 0.3% | 1 | -0.6% |
| Other private funds | 13.7% | 16 | +0.9% |
| Mixed private funds | 0.3% | 2 | -3.1% |
| Private funds, type not stated | 0.7% | 1 | -2.9% |
| No private funds | 23.0% | 71 | +4.6% |
| Unknown | 45.3% | 122 | +5.1% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 88.7% | 212 | +2.0% |
| Outside the US | 11.3% | 36 | +1.7% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 5 holders with no observed 2026-03-31 13F and 2 holders with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
248 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 24.0% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies GRC's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | TWIN Twin Disc Inc | 3 |
| 2 | ASTE Astec Industries Inc | 4 |
| 3 | GHM Graham Corp | 5 |
| 4 | MYE Myers Industries Inc | 3 |
| 5 | ODC Oil-Dri Corp of America | 3 |
| 6 | IRMD Iradimed Corp | 3 |
| 7 | FELE Franklin Electric Co Inc | 4 |
| 8 | MATW Matthews International Corp | 3 |
| 9 | NWPX NWPX Infrastructure, Inc. | 3 |
| 10 | LINC Lincoln Educational Services Corp | 4 |
Shareholder Targets
13F filers that own its peers but not GRC, quarter ended Jun 30, 2026Found through its holder-overlap peers: TWIN, ASTE, GHM, MYE, ODC, IRMD, FELE, MATW, NWPX, LINC, TNC, VPG, ATRO, PKE, ATEN, ALNT, ATEX, MSA, DCO, BSY. 968 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | T. Rowe Price Investment Management, Inc. Adviser, Diversified active | $735,264,054 8 held | ATEX, BSY, VPG |
| 2 | Owl Creek Asset Management, L.P. Registered adviser, Concentrated | $557,088,221 1 held | ATEX |
| 3 | NORGES BANK Non-US, Index-like | $451,967,443 9 held | BSY, FELE, MSA |
| 4 | ROYCE & ASSOCIATES LP Registered adviser, Diversified active | $334,548,831 13 held | MSA, GHM, NWPX |
| 5 | Ruane, Cunniff & Goldfarb L.P. Registered adviser, Concentrated | $300,524,630 1 held | MSA |
| 6 | Swedbank AB Unknown, Diversified active | $275,155,216 2 held | BSY, MSA |
| 7 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser, Diversified active | $252,579,356 9 held | BSY, ATEN, MYE |
| 8 | Portolan Capital Management, LLC Unknown, Diversified active | $231,355,718 6 held | VPG, ALNT, PKE |
| 9 | BRANDES INVESTMENT PARTNERS, LP Registered adviser, Diversified active | $230,584,016 2 held | GHM, PKE |
| 10 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Registered adviser, Diversified active | $222,780,126 2 held | BSY, GHM |
Fund Ownership of GRC by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 19.92% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 2.89% | 762,088 |
| Index ETFs | 17.04% | 4,499,515 |
| Active ETFs | 1.26% | 333,974 |
| Active funds | 12.42% | 3,279,090 |
| Unclassified | 0.23% | 61,226 |
| All registered funds | 33.84% | 8,935,893 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega BlackRock, Inc. Holding company | $165,116,215 | 10.35% | 1,799,828 | Shares | 2026-08-07 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $105,156,698 | 6.59% | 1,146,247 | Shares | 2026-08-11 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $100,252,921 | 6.28% | 1,092,794 | Shares | 2026-08-13 | |
| Small Mechanics Financial Corp | $92,226,772 | 5.78% | 1,005,306 | Shares | 2026-08-05 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $85,473,332 | 5.36% | 931,691 | Shares | 2026-08-13 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $69,888,683 | 4.38% | 762,875 | Shares | 2026-08-14 | |
| Large GABELLI FUNDS LLC Registered adviser | $68,745,093 | 4.31% | 749,347 | Shares | 2026-08-12 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $54,707,772 | 3.43% | 596,335 | Shares | 2026-08-12 | |
| Large GAMCO INVESTORS, INC. ET AL Registered adviser | $52,059,697 | 3.26% | 567,470 | Shares | 2026-08-12 | |
| Mega VICTORY CAPITAL MANAGEMENT INC Registered adviser | $48,923,657 | 3.07% | 533,286 | Shares | 2026-08-07 | |
| Mega STATE STREET CORP Bank | $48,526,790 | 3.04% | 528,960 | Shares | 2026-09-22 | |
| Mega FIRST TRUST ADVISORS LP Registered adviser | $47,356,371 | 2.97% | 516,202 | Shares | 2026-08-11 | |
| Large KING LUTHER CAPITAL MANAGEMENT CORP Registered adviser | $36,215,741 | 2.27% | 394,765 | Shares | 2026-08-10 | |
| Mega Legal & General Group Plc | $33,824,169 | 2.12% | 368,696 | Shares | 2026-08-14 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $28,290,596 | 1.77% | 308,378 | Shares | 2026-08-14 | |
| Mid NEEDHAM INVESTMENT MANAGEMENT LLC Registered adviser | $24,999,150 | 1.57% | 272,500 | Shares | 2026-08-14 | |
| Small GRACE & WHITE INC /NY Registered adviser | $20,596,252 | 1.29% | 276,534 | Shares | 2026-10-23 | |
| Large KBC Group NV | $19,271,625 | 1.21% | 258,749 | Shares | 2026-10-22 | |
| Mega NORTHERN TRUST CORP Bank | $19,249,526 | 1.21% | 209,827 | Shares | 2026-08-13 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $16,890,893 | 1.06% | 184,117 | Shares | 2026-08-14 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $16,755,942 | 1.05% | 182,646 | Shares | 2026-08-14 | |
| Mega Invesco Ltd. Adviser | $16,579,801 | 1.04% | 180,726 | Shares | 2026-08-14 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $16,243,484 | 1.02% | 177,060 | Shares | 2026-08-14 | |
| Mega Bank of New York Mellon Corp Bank | $16,235,501 | 1.02% | 176,973 | Shares | 2026-08-06 | |
| Small PRENTISS SMITH & CO INC Registered adviser | $15,661,394 | 0.98% | 170,715 | Shares | 2026-07-30 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $13,758,798 | 0.86% | 149,976 | Shares | 2026-08-13 | |
| Large KEYBANK NATIONAL ASSOCIATION/OH Bank | $13,058,271 | 0.82% | 142,340 | Shares | 2026-07-28 | |
| Mega Amundi Holding company | $12,884,516 | 0.81% | 140,446 | Shares | 2026-08-11 | |
| Mega MORGAN STANLEY Holding company | $12,734,884 | 0.80% | 138,815 | Shares | 2026-08-13 | |
| Mid KENNEDY CAPITAL MANAGEMENT LLC Registered adviser | $10,638,445 | 0.67% | 115,963 | Shares | 2026-08-14 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $10,022,503 | 0.63% | 109,249 | Shares | 2026-08-14 | |
| Mid OBERWEIS ASSET MANAGEMENT INC/ Registered adviser | $9,962,964 | 0.62% | 108,600 | Shares | 2026-08-14 | |
| Mega ENVESTNET ASSET MANAGEMENT INC Registered adviser | $9,810,216 | 0.61% | 106,935 | Shares | 2026-09-23 | |
| Large EARNEST PARTNERS LLC Registered adviser | $9,338,398 | 0.59% | 101,792 | Shares | 2026-08-13 | |
| Large Connor, Clark & Lunn Investment Management Ltd. Registered adviser | $9,209,319 | 0.58% | 100,385 | Shares | 2026-08-13 | |
| Mid Uniplan Investment Counsel, Inc. Registered adviser | $8,943,273 | 0.56% | 97,485 | Shares | 2026-08-14 | |
| Mega UBS Group AG Bank | $8,803,002 | 0.55% | 95,956 | Shares | 2026-08-13 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $8,643,650 | 0.54% | 94,219 | Shares | 2026-08-14 | |
| Small JOHN G ULLMAN & ASSOCIATES INC | $7,802,028 | 0.49% | 85,045 | Shares | 2026-08-11 | |
| Large ProShare Advisors LLC Registered adviser | $7,718,911 | 0.48% | 84,139 | Shares | 2026-08-11 | |
| Large TUDOR INVESTMENT CORP ET AL Registered adviser | $7,706,160 | 0.48% | 84,000 | Put | 2026-08-14 | |
| Mega Nuveen, LLC | $7,471,946 | 0.47% | 81,447 | Shares | 2026-08-11 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $6,908,022 | 0.43% | 75,300 | Shares | 2026-08-13 | |
| Large Trexquant Investment LP Registered adviser | $6,801,420 | 0.43% | 74,138 | Shares | 2026-08-14 | |
| Large Allspring Global Investments Holdings, LLC Holding company | $6,536,658 | 0.41% | 71,252 | Shares | 2026-08-13 | |
| Mid Informed Momentum Co LLC Registered adviser | $6,334,280 | 0.40% | 69,046 | Shares | 2026-08-13 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $6,319,234 | 0.40% | 68,882 | Shares | 2026-08-14 | |
| Mid Rodgers Brothers Inc. Registered adviser | $5,841,911 | 0.37% | 63,679 | Shares | 2026-08-05 | |
| Mega AMERICAN CENTURY COMPANIES INC | $5,639,808 | 0.35% | 61,476 | Shares | 2026-08-12 | |
| Mid LBMC INVESTMENT ADVISORS, LLC Registered adviser | $5,606,781 | 0.35% | 61,116 | Shares | 2026-08-10 | |
| Large TEACHER RETIREMENT SYSTEM OF TEXAS Benefit plan | $5,156,980 | 0.32% | 56,213 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $5,022,948 | 0.31% | 54,752 | Shares | 2026-08-14 | |
| Large US BANCORP \DE\ Bank | $4,934,051 | 0.31% | 53,783 | Shares | 2026-08-12 | |
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser | $4,617,453 | 0.29% | 50,332 | Shares | 2026-08-13 | |
| Small Fruth Investment Management | $4,604,353 | 0.29% | 61,820 | Shares | 2026-10-13 | |
| Mega Swiss National Bank | $3,875,739 | 0.24% | 42,247 | Shares | 2026-08-11 | |
| Small Teton Advisors, LLC Registered adviser | $3,541,164 | 0.22% | 38,600 | Shares | 2026-08-12 | |
| Mid MARTINGALE ASSET MANAGEMENT L P Registered adviser | $3,212,918 | 0.20% | 35,022 | Shares | 2026-08-13 | |
| Mega Fisher Asset Management, LLC Adviser | $3,153,654 | 0.20% | 34,376 | Shares | 2026-08-04 | |
| Large JOHNSON INVESTMENT COUNSEL INC Registered adviser | $3,102,004 | 0.19% | 33,813 | Shares | 2026-07-23 | |
| Large TUDOR INVESTMENT CORP ET AL Registered adviser | $3,092,371 | 0.19% | 33,708 | Shares | 2026-08-14 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $3,022,741 | 0.19% | 32,949 | Shares | 2026-08-12 | |
| Mega RAYMOND JAMES FINANCIAL INC | $2,971,090 | 0.19% | 32,386 | Shares | 2026-08-14 | |
| Mega JPMORGAN CHASE & CO Bank | $2,957,787 | 0.19% | 32,241 | Shares | 2026-08-12 | |
| Mega Russell Investments Group, Ltd. | $2,740,272 | 0.17% | 29,870 | Shares | 2026-08-06 | |
| Mid PARK NATIONAL CORP /OH/ Bank | $2,585,647 | 0.16% | 34,716 | Shares | 2026-10-05 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $2,582,937 | 0.16% | 28,155 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2,311,848 | 0.14% | 25,200 | Put | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $2,302,674 | 0.14% | 25,100 | Put | 2026-09-02 | |
| Large CREDIT AGRICOLE S A | $2,293,500 | 0.14% | 25,000 | Shares | 2026-08-14 | |
| Mid XTX Topco Ltd | $2,277,262 | 0.14% | 24,823 | Shares | 2026-08-14 | |
| Mega SG Americas Securities, LLC Non-US | $2,269,188 | 0.14% | 24,735 | Shares | 2026-08-07 | |
| Large Janney Montgomery Scott LLC Adviser | $2,258,547 | 0.14% | 24,619 | Shares | 2026-08-05 | |
| Mega JANE STREET GROUP, LLC | $2,229,282 | 0.14% | 24,300 | Put | 2026-08-14 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Benefit plan | $2,180,384 | 0.14% | 23,767 | Shares | 2026-08-24 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $2,091,396 | 0.13% | 22,797 | Shares | 2026-08-14 | |
| Mega DEUTSCHE BANK AG\ Non-US | $2,067,911 | 0.13% | 22,541 | Shares | 2026-08-07 | |
| Mega LPL Financial LLC Broker-dealer | $2,063,140 | 0.13% | 22,489 | Shares | 2026-08-07 | |
| Mega HighTower Advisors, LLC Registered adviser | $2,042,040 | 0.13% | 22,259 | Shares | 2026-08-05 | |
| Large STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM Benefit plan | $1,927,365 | 0.12% | 21,009 | Shares | 2026-08-10 | |
| Large Vontobel Holding Ltd. | $1,735,235 | 0.11% | 23,298 | Shares | 2026-10-16 | |
| Mega STIFEL FINANCIAL CORP | $1,718,564 | 0.11% | 18,733 | Shares | 2026-08-12 | |
| Mid INTRUST BANK NA | $1,675,905 | 0.11% | 18,268 | Shares | 2026-08-05 | |
| Mega Creative Planning Registered adviser | $1,597,927 | 0.10% | 17,418 | Shares | 2026-08-13 | |
| Small Pinnacle Wealth Planning Services, Inc. Registered adviser | $1,574,900 | 0.10% | 17,167 | Shares | 2026-08-07 | |
| Mega Cetera Investment Advisers Registered adviser | $1,574,717 | 0.10% | 17,165 | Shares | 2026-08-12 | |
| Large Quantinno Capital Management LP Registered adviser | $1,488,573 | 0.09% | 16,226 | Shares | 2026-08-13 | |
| Mega PRINCIPAL FINANCIAL GROUP INC Insurer | $1,486,187 | 0.09% | 16,200 | Shares | 2026-08-04 | |
| Mega VANGUARD ASSET MANAGEMENT, Ltd | $1,429,492 | 0.09% | 15,582 | Shares | 2026-08-13 | |
| Mid DARK FOREST CAPITAL MANAGEMENT LP Registered adviser | $1,386,191 | 0.09% | 15,110 | Shares | 2026-08-14 | |
| Small VARCOV Co. | $1,351,421 | 0.08% | 14,731 | Shares | 2026-08-14 | |
| Large Cambridge Investment Research Advisors, Inc. | $1,310,047 | 0.08% | 14,280 | Shares | 2026-07-30 | |
| Large Assenagon Asset Management S.A. | $1,275,544 | 0.08% | 17,126 | Shares | 2026-10-15 | |
| Large COMMONWEALTH EQUITY SERVICES, LLC Registered adviser | $1,160,877 | 0.07% | 12,654 | Shares | 2026-07-29 | |
| Large KLP KAPITALFORVALTNING AS | $1,155,924 | 0.07% | 12,600 | Shares | 2026-08-12 | |
| Large MetLife Investment Management, LLC Registered adviser | $1,145,649 | 0.07% | 12,488 | Shares | 2026-08-14 | |
| Mega CITIGROUP INC Bank | $1,094,640 | 0.07% | 11,932 | Shares | 2026-08-03 | |
| Mega Vanguard Global Advisers, LLC Registered adviser | $1,051,432 | 0.07% | 11,461 | Shares | 2026-08-13 | |
| Large STRS OHIO Benefit plan | $1,027,488 | 0.06% | 11,200 | Shares | 2026-07-30 | |
| Small PVG ASSET MANAGEMENT CORP Registered adviser | $995,797 | 0.06% | 13,370 | Shares | 2026-10-19 |
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