EROC ERock, Inc.
ERock, Inc. (EROC) Institutional Ownership
What the institutions did with EROC 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 |
|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.3M | 6.6% |
| Balyasny Asset Management L.P. | 2.1M | 6.1% |
| Cinctive Capital Management LP | 1.9M | 5.7% |
| Encompass Capital Advisors LLC | 1.9M | 5.5% |
| Zimmer Partners, LP | 1.9M | 5.5% |
| AMERIPRISE FINANCIAL INC | 1.8M | 5.3% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.8M | 5.2% |
| ALLIANCEBERNSTEIN L.P. | 1.7M | 5.0% |
| CITADEL ADVISORS LLC | 1.5M | 4.4% |
| Value Aligned Research Advisors, LLC | 1.3M | 3.9% |
| Alyeska Investment Group, L.P. | 1.3M | 3.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.1M | 3.3% |
| Pictet Asset Management Holding SA | 1.1M | 3.1% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.0M | 3.0% |
| CIBC Bancorp USA Inc. | 1.0M | 2.9% |
| SEVEN GRAND MANAGERS, LLC | 500.0K | 1.5% |
| WELLINGTON MANAGEMENT GROUP LLP | 498.5K | 1.5% |
| REAVES W H & CO INC | 435.0K | 1.3% |
| FRANKLIN RESOURCES INC | 434.9K | 1.3% |
| JANE STREET GROUP, LLC | 416.4K | 1.2% |
| UBS Group AG | 404.6K | 1.2% |
| Ghisallo Capital Management LLC | 400.0K | 1.2% |
| SOROS FUND MANAGEMENT LLC | 376.2K | 1.1% |
| Burkehill Global Management, LP | 375.0K | 1.1% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 369.5K | 1.1% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ | New | 0 | 2.3M | +2.3M |
| Balyasny Asset Management L.P. | New | 0 | 2.1M | +2.1M |
| Cinctive Capital Management LP | New | 0 | 1.9M | +1.9M |
| Encompass Capital Advisors LLC | New | 0 | 1.9M | +1.9M |
| Zimmer Partners, LP | New | 0 | 1.9M | +1.9M |
| AMERIPRISE FINANCIAL INC | New | 0 | 1.8M | +1.8M |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | New | 0 | 1.8M | +1.8M |
| ALLIANCEBERNSTEIN L.P. | New | 0 | 1.7M | +1.7M |
| CITADEL ADVISORS LLC | New | 0 | 1.5M | +1.5M |
| Value Aligned Research Advisors, LLC | New | 0 | 1.3M | +1.3M |
| Alyeska Investment Group, L.P. | New | 0 | 1.3M | +1.3M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New | 0 | 1.1M | +1.1M |
| Pictet Asset Management Holding SA | New | 0 | 1.1M | +1.1M |
| VANGUARD CAPITAL MANAGEMENT LLC | New | 0 | 1.0M | +1.0M |
| CIBC Bancorp USA Inc. | New | 0 | 1.0M | +1.0M |
| SEVEN GRAND MANAGERS, LLC | New | 0 | 500.0K | +500.0K |
| WELLINGTON MANAGEMENT GROUP LLP | New | 0 | 498.5K | +498.5K |
| REAVES W H & CO INC | New | 0 | 435.0K | +435.0K |
| FRANKLIN RESOURCES INC | New | 0 | 434.9K | +434.9K |
| JANE STREET GROUP, LLC | New | 0 | 416.4K | +416.4K |
| UBS Group AG | New | 0 | 404.6K | +404.6K |
| Ghisallo Capital Management LLC | New | 0 | 400.0K | +400.0K |
| SOROS FUND MANAGEMENT LLC | New | 0 | 376.2K | +376.2K |
| Burkehill Global Management, LP | New | 0 | 375.0K | +375.0K |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | New | 0 | 369.5K | +369.5K |
| EAGLE GLOBAL ADVISORS LLC | New | 0 | 365.0K | +365.0K |
| BOOTHBAY FUND MANAGEMENT, LLC | New | 0 | 339.2K | +339.2K |
| Aventail Capital Group, LP | New | 0 | 331.8K | +331.8K |
| TUDOR INVESTMENT CORP ET AL | New | 0 | 305.0K | +305.0K |
| MILLENNIUM MANAGEMENT LLC | New | 0 | 281.4K | +281.4K |
| EMERALD ADVISERS, LLC | New | 0 | 280.7K | +280.7K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | New | 0 | 265.0K | +265.0K |
| Freestone Grove Partners LP | New | 0 | 264.1K | +264.1K |
| Yaupon Capital Management LP | New | 0 | 250.0K | +250.0K |
| Lighthouse Investment Partners, LLC | New | 0 | 247.4K | +247.4K |
| D. E. Shaw & Co., Inc. | New | 0 | 225.0K | +225.0K |
| GOLDMAN SACHS GROUP INC | New | 0 | 210.2K | +210.2K |
| BlueCrest Capital Management Ltd | New | 0 | 200.0K | +200.0K |
| LMR Partners LLP | New | 0 | 189.5K | +189.5K |
| EMERALD MUTUAL FUND ADVISERS TRUST | New | 0 | 182.2K | +182.2K |
| Woodline Partners LP | New | 0 | 176.7K | +176.7K |
| SIR Capital Management, L.P. | New | 0 | 176.1K | +176.1K |
| Schonfeld Strategic Advisors LLC | New | 0 | 175.8K | +175.8K |
| ELEMENT CAPITAL MANAGEMENT LLC | New | 0 | 142.0K | +142.0K |
| Capricorn Fund Managers Ltd | New | 0 | 140.0K | +140.0K |
| Weiss Asset Management LP | New | 0 | 117.7K | +117.7K |
| Hill City Capital, LP | New | 0 | 110.0K | +110.0K |
| Brooklands Fund Management Ltd | New | 0 | 106.3K | +106.3K |
| XTX Topco Ltd | New | 0 | 106.0K | +106.0K |
| RAYMOND JAMES FINANCIAL INC | New | 0 | 102.5K | +102.5K |
| DEUTSCHE BANK AG\ | New | 0 | 101.2K | +101.2K |
| STEADFAST CAPITAL MANAGEMENT LP | New | 0 | 90.0K | +90.0K |
| Third Point LLC | New | 0 | 83.0K | +83.0K |
| Shay Capital LLC | New | 0 | 80.0K | +80.0K |
| MORGAN STANLEY | New | 0 | 77.9K | +77.9K |
| VANGUARD FIDUCIARY TRUST CO | New | 0 | 65.7K | +65.7K |
| Hudson Bay Capital Management LP | New | 0 | 62.2K | +62.2K |
| Pentwater Capital Management LP | New | 0 | 60.0K | +60.0K |
| SummitTX Capital, L.P. | New | 0 | 55.0K | +55.0K |
| READYSTATE ASSET MANAGEMENT LP | New | 0 | 50.0K | +50.0K |
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.