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Ownership

Who owns Ames National Corp, from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).

Stakes over 5%

Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.

Fourthstone LLC, Fourthstone Master Opportunity Fund Ltd, Fourthstone GP LLC August 14, 2026

Fourthstone LLC: 0.2% · 16,768 shares — Fourthstone Master Opportunity Fund Ltd: 0.1% · 11,617 shares — Fourthstone GP LLC: 0.1% · 5,151 shares

Vanguard Capital Management April 29, 2026

Vanguard Capital Management: 5.2% · 458,547 shares

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Super investors holding ATLO

Every institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of Ames National Corp they hold. Together these 110 managers report 47.45% of shares outstanding.

Investor Position value Shares % of their portfolio % of company As of
BlackRock, Inc. $20.2M 683,151 0.00% 7.71% June 30, 2026
VANGUARD GROUP INC $11.7M 510,111 0.00% 5.76% December 31, 2025

108 more institutional holders behind a free account

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Funds holding ATLO

Funds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 111 funds hold 15.86% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.

Fund Position value % of net assets % of company As of
VANGUARD TOTAL STOCK MARKET INDEX FUND $8.3M 0.00% 3.17% June 30, 2026
iShares Russell 2000 ETF $6.49M 0.01% 2.60% March 31, 2026

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