Who owns AMES NATIONAL CORP?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ATLO from SEC Form 13F filings across 99 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 99 institutions disclosed 3.6M shares of AMES NATIONAL CORP worth $107.2M — about 40.9% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
99
13F holders
$107.2M
value, 2026 filers
40.9%
of shares outstanding (3.6M sh)
17
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of ATLO's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 683,151 | $20.2M | 0.0% | 7.7% | +12.1% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 387,611 | $11.5M | 0.0% | 4.4% | -3.2% |
| 3 | DIMENSIONAL FUND ADVISORS LP | 299,300 | $8.9M | 0.0% | 3.4% | +9.6% |
| 4 | GEODE CAPITAL MANAGEMENT, LLC | 223,415 | $6.6M | 0.0% | 2.5% | +10.3% |
| 5 | STATE STREET CORP | 204,851 | $6.1M | 0.0% | 2.3% | +35.0% |
| 6 | AMERICAN CENTURY COMPANIES INC | 137,955 | $4.1M | 0.0% | 1.6% | +205.3% |
| 7 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 135,903 | $4.0M | 0.0% | 1.5% | +35.4% |
| 8 | Qube Research & Technologies LtdNEW | 85,233 | $2.5M | 0.0% | 1% | new |
| 9 | MARSHALL WACE, LLP | 83,618 | $2.5M | 0.0% | 0.9% | +46.7% |
| 10 | Elizabeth Park Capital Advisors, Ltd. | 80,480 | $2.4M | 1.6% | 0.9% | 0.0% |
| 11 | NORTHERN TRUST CORP | 74,396 | $2.2M | 0.0% | 0.8% | +6.6% |
| 12 | RENAISSANCE TECHNOLOGIES LLC | 62,184 | $1.8M | 0.0% | 0.7% | +63.7% |
| 13 | VANGUARD PORTFOLIO MANAGEMENT LLC | 60,601 | $1.8M | 0.0% | 0.7% | +17.7% |
| 14 | VANGUARD FIDUCIARY TRUST CO | 59,174 | $1.8M | 0.0% | 0.7% | +5.9% |
| 15 | LPL Financial LLC | 58,546 | $1.7M | 0.0% | 0.7% | +2.4% |
| 16 | AQR CAPITAL MANAGEMENT LLC | 56,205 | $1.7M | 0.0% | 0.6% | +74.7% |
| 17 | MORGAN STANLEY | 53,461 | $1.6M | 0.0% | 0.6% | +14.0% |
| 18 | AMES NATIONAL CORP | 46,557 | $1.3M | 0.7% | 0.5% | 0.0% |
| 19 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 43,214 | $1.3M | 0.0% | 0.5% | +28.3% |
| 20 | Connor, Clark & Lunn Investment Management Ltd. | 43,074 | $1.3M | 0.0% | 0.5% | +59.7% |
| 21 | GOLDMAN SACHS GROUP INC | 42,392 | $1.3M | 0.0% | 0.5% | -4.4% |
| 22 | Trexquant Investment LP | 41,416 | $1.2M | 0.0% | 0.5% | +247.2% |
| 23 | CITADEL ADVISORS LLCNEW | 38,924 | $1.2M | 0.0% | 0.4% | new |
| 24 | ACADIAN ASSET MANAGEMENT LLC | 36,993 | $1.1M | 0.0% | 0.4% | +2353.1% |
| 25 | RITHOLTZ WEALTH MANAGEMENT | 32,897 | $974,067 | 0.0% | 0.4% | +5.7% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.