HMH HMH Holding Inc.
HMH Holding Inc. (HMH) Institutional Ownership
What the institutions did with HMH 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.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.8M | 23.3% |
| AMERICAN CENTURY COMPANIES INC | 1.5M | 12.4% |
| WELLINGTON MANAGEMENT GROUP LLP | 760.5K | 6.3% |
| BlackRock, Inc. | 738.2K | 6.1% |
| T. Rowe Price Investment Management, Inc. | 694.4K | 5.8% |
| CITADEL ADVISORS LLC | 673.7K | 5.6% |
| FMR LLC | 563.6K | 4.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 473.9K | 3.9% |
| GeoSphere Capital Management, LLC | 375.0K | 3.1% |
| Alyeska Investment Group, L.P. | 300.0K | 2.5% |
| Cannell & Spears LLC | 277.2K | 2.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 273.1K | 2.3% |
| TWO SIGMA INVESTMENTS, LP | 266.9K | 2.2% |
| MILLENNIUM MANAGEMENT LLC | 160.9K | 1.3% |
| Thomist Capital Management, LP | 158.2K | 1.3% |
| SEVEN GRAND MANAGERS, LLC | 150.0K | 1.2% |
| UBS Group AG | 145.0K | 1.2% |
| JANE STREET GROUP, LLC | 136.1K | 1.1% |
| Marex Group plc | 127.4K | 1.1% |
| Ghisallo Capital Management LLC | 125.0K | 1.0% |
| Burkehill Global Management, LP | 125.0K | 1.0% |
| GOLDMAN SACHS GROUP INC | 101.7K | 0.8% |
| Walleye Capital LLC | 83.0K | 0.7% |
| NORTHERN TRUST CORP | 82.0K | 0.7% |
| READYSTATE ASSET MANAGEMENT LP | 80.0K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ | New | 0 | 2.8M | +2.8M |
| AMERICAN CENTURY COMPANIES INC | New | 0 | 1.5M | +1.5M |
| WELLINGTON MANAGEMENT GROUP LLP | New | 0 | 760.5K | +760.5K |
| BlackRock, Inc. | New | 0 | 738.2K | +738.2K |
| T. Rowe Price Investment Management, Inc. | New | 0 | 694.4K | +694.4K |
| CITADEL ADVISORS LLC | New | 0 | 673.7K | +673.7K |
| FMR LLC | New | 0 | 563.6K | +563.6K |
| VANGUARD CAPITAL MANAGEMENT LLC | New | 0 | 473.9K | +473.9K |
| GeoSphere Capital Management, LLC | New | 0 | 375.0K | +375.0K |
| Alyeska Investment Group, L.P. | New | 0 | 300.0K | +300.0K |
| Cannell & Spears LLC | New | 0 | 277.2K | +277.2K |
| GEODE CAPITAL MANAGEMENT, LLC | New | 0 | 273.1K | +273.1K |
| TWO SIGMA INVESTMENTS, LP | New | 0 | 266.9K | +266.9K |
| MILLENNIUM MANAGEMENT LLC | New | 0 | 160.9K | +160.9K |
| Thomist Capital Management, LP | New | 0 | 158.2K | +158.2K |
| SEVEN GRAND MANAGERS, LLC | New | 0 | 150.0K | +150.0K |
| UBS Group AG | New | 0 | 145.0K | +145.0K |
| JANE STREET GROUP, LLC | New | 0 | 136.1K | +136.1K |
| Marex Group plc | New | 0 | 127.4K | +127.4K |
| Burkehill Global Management, LP | New | 0 | 125.0K | +125.0K |
| Ghisallo Capital Management LLC | New | 0 | 125.0K | +125.0K |
| GOLDMAN SACHS GROUP INC | New | 0 | 101.7K | +101.7K |
| Walleye Capital LLC | New | 0 | 83.0K | +83.0K |
| NORTHERN TRUST CORP | New | 0 | 82.0K | +82.0K |
| READYSTATE ASSET MANAGEMENT LP | New | 0 | 80.0K | +80.0K |
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.