ATLO Ames National Corporation
Ames National Corporation (ATLO) Institutional Ownership
What the institutions did with ATLO 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 |
|---|---|---|
| BlackRock, Inc. | 683.2K | 18.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | 387.6K | 10.7% |
| DIMENSIONAL FUND ADVISORS LP | 299.3K | 8.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 223.4K | 6.2% |
| STATE STREET CORP | 204.9K | 5.7% |
| AMERICAN CENTURY COMPANIES INC | 138.0K | 3.8% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 135.9K | 3.8% |
| Qube Research & Technologies Ltd | 85.2K | 2.4% |
| MARSHALL WACE, LLP | 83.6K | 2.3% |
| Elizabeth Park Capital Advisors, Ltd. | 80.5K | 2.2% |
| NORTHERN TRUST CORP | 74.4K | 2.1% |
| RENAISSANCE TECHNOLOGIES LLC | 62.2K | 1.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 60.6K | 1.7% |
| VANGUARD FIDUCIARY TRUST CO | 59.2K | 1.6% |
| LPL Financial LLC | 58.5K | 1.6% |
| AQR CAPITAL MANAGEMENT LLC | 56.2K | 1.6% |
| MORGAN STANLEY | 53.5K | 1.5% |
| AMES NATIONAL CORP | 46.6K | 1.3% |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 43.2K | 1.2% |
| Connor, Clark & Lunn Investment Management Ltd. | 43.1K | 1.2% |
| GOLDMAN SACHS GROUP INC | 42.4K | 1.2% |
| Trexquant Investment LP | 41.4K | 1.1% |
| CITADEL ADVISORS LLC | 38.9K | 1.1% |
| ACADIAN ASSET MANAGEMENT LLC | 37.0K | 1.0% |
| RITHOLTZ WEALTH MANAGEMENT | 32.9K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Fourthstone LLC | Reduced | 683.3K | 16.8K | -666.5K |
| AMERICAN CENTURY COMPANIES INC | Increased | 45.2K | 138.0K | +92.8K |
| Qube Research & Technologies Ltd | New | 0 | 85.2K | +85.2K |
| BlackRock, Inc. | Increased | 609.2K | 683.2K | +74.0K |
| STATE STREET CORP | Increased | 151.8K | 204.9K | +53.1K |
| SEGALL BRYANT & HAMILL, LLC | Sold Out | 39.5K | 0 | -39.5K |
| CITADEL ADVISORS LLC | New | 0 | 38.9K | +38.9K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 100.4K | 135.9K | +35.5K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 1.5K | 37.0K | +35.5K |
| Trexquant Investment LP | Increased | 11.9K | 41.4K | +29.5K |
| MARSHALL WACE, LLP | Increased | 57.0K | 83.6K | +26.6K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 273.0K | 299.3K | +26.3K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 38.0K | 62.2K | +24.2K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 32.2K | 56.2K | +24.0K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 202.5K | 223.4K | +20.9K |
| IFG Advisory, LLC | New | 0 | 18.8K | +18.8K |
| Quadrature Capital Ltd | New | 0 | 16.7K | +16.7K |
| Connor, Clark & Lunn Investment Management Ltd. | Increased | 27.0K | 43.1K | +16.1K |
| STATE OF WISCONSIN INVESTMENT BOARD | New | 0 | 15.6K | +15.6K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | New | 0 | 14.9K | +14.9K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 400.2K | 387.6K | -12.6K |
| Hillsdale Investment Management Inc. | New | 0 | 11.7K | +11.7K |
| MILLENNIUM MANAGEMENT LLC | New | 0 | 10.8K | +10.8K |
| Invesco Ltd. | New | 0 | 10.0K | +10.0K |
| MARTINGALE ASSET MANAGEMENT L P | New | 0 | 9.6K | +9.6K |
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.