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ATLO · Ames National Corp · Shareholders & Ownership

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$33.94 -0.09 (-0.26%)
Market Cap
$301.41M
Shares
8.86M
Volume · Oct 28 942 Avg daily vol (3M) 28.41K

Every disclosed holder of ATLO in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns ATLO

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions
Holder group Shares % Out
Institutional (13F) 3,626,808 40.95%
Insiders (Forms 3, 4, 5) 114,502 1.29%
13D/G-only blocks 0 0.00%
Remaining 5,115,910 57.76%
Registered funds (N-PORT, not summed) 1,580,831 17.85%

Shares outstanding: 8,857,220, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of ATLO

# Holder Shares
1
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
683,151
1.1
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
267,484
1.2
iShares Russell 2000 Value ETF
Fund S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
88,982
1.3
iShares Micro-Cap ETF
Fund S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
31,221
1.4
Master Small Cap Index Series
Fund S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
18,204
1.5
iShares Russell Small/Mid-Cap Index Fund
Fund S000050373 · Registered fund · Jul 31, 2026
BlackRock Funds, not summed
1,638
2
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
387,611
3
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
299,300
3.1
U.S. Targeted Value Portfolio
Fund S000000970 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
53,958
3.2
Dimensional U.S. Targeted Value ETF
Fund S000070901 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
39,515
3.3
U.S. SMALL CAP PORTFOLIO
Fund S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
38,651
3.4
U.S. MICRO CAP PORTFOLIO
Fund S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
30,073
3.5
Dimensional U.S. Small Cap ETF
Fund S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
29,453
4
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
280,413
5
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
223,415
6
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
204,851
6.1
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
3,222
6.2
State Street Total Return V.I.S. Fund
Fund S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
252
7
AMERICAN CENTURY COMPANIES INC
13F CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
137,955
8
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F CIK 1164508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
135,903
9
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
98,517
10
Avantis U.S. Small Cap Value ETF
Fund S000066459 · Registered fund · May 31, 2026
American Century ETF Trust, not summed
88,146
11
Qube Research & Technologies Ltd
13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
85,233
12
MARSHALL WACE, LLP
13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
83,618
13
Elizabeth Park Capital Advisors, Ltd.
13F CIK 1600583 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
80,480
14
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
74,396
14.1
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
4,453
14.2
Small Cap Core Fund
Fund S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
1,040
15
RENAISSANCE TECHNOLOGIES LLC
13F CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
62,184
16
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
60,601
17
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
59,174
18
LPL Financial LLC
13F CIK 1403438 · Broker-dealer · Jun 30, 2026
carried, not yet filed for the newest quarter
58,546
19
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
56,205
20
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
53,461
21
AMES NATIONAL CORP
13F CIK 1132651 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
46,557
22
VANGUARD RUSSELL 2000 INDEX FUND
Fund S000030003 · Registered fund · May 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
45,808
23
O'SHAUGHNESSY ASSET MANAGEMENT, LLC
13F CIK 1423442 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
43,214
24
Connor, Clark & Lunn Investment Management Ltd.
13F CIK 1596800 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
43,074
25
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
42,392
26
Trexquant Investment LP
13F CIK 1633445 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
41,416
27
CITADEL ADVISORS LLC
13F CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
38,924
28
ACADIAN ASSET MANAGEMENT LLC
13F CIK 916542 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
36,993
29
RITHOLTZ WEALTH MANAGEMENT
13F CIK 1698218 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
32,897
30
FIRST TRUST ADVISORS LP
13F CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
32,740
30.1
First Trust Active Factor Small Cap ETF
Fund S000066790 · Registered fund · Aug 31, 2026
First Trust Exchange-Traded Fund VIII, not summed
33,593
30.2
First Trust NASDAQ ABA Community Bank Index Fund
Fund S000026211 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund, not summed
3,122
31
CHANNEL WEALTH LLC
13F CIK 1975550 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
31,284
32
Bank of New York Mellon Corp
13F CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
30,668
33
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO
13F CIK 1141802 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
30,640
34
RBF Capital, LLC
13F CIK 1134621 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
30,000
35
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
26,393
35.1
Schwab Small-Cap Index Fund
Fund S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
21,912
35.2
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
4,056
36
BAUDLER HORRAS BETTY A
Insider CIK 1191909 · Jun 2, 2025
Director, issuer-wide
22,275
37
Arkadios Wealth Advisors
13F CIK 1800798 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
22,077
38
NewEdge Advisors, LLC
13F CIK 1633516 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
20,034
39
NELSON JOHN PATRICK
Insider CIK 1191934 · Dec 31, 2025
Director, President, issuer-wide
19,269
40
IFG Advisory, LLC
13F CIK 1728319 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
18,760
41
BRIDGEWAY CAPITAL MANAGEMENT, LLC
13F CIK 1107261 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
18,111
41.1
Omni Small-Cap Value Fund
Fund S000033567 · Registered fund · Jun 30, 2026
Bridgeway Funds, Inc., not summed
6,008
42
Fourthstone LLC
13F CIK 1767803 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
16,768
42.1
Fourthstone LLC
13G CIK 1767803 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
16,768
43
Quadrature Capital Ltd
13F CIK 1651424 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
16,671
44
STATE OF WISCONSIN INVESTMENT BOARD
13F CIK 854157 · Pension or benefit plan · Jun 30, 2026
carried, not yet filed for the newest quarter
15,632
45
LOS ANGELES CAPITAL MANAGEMENT LLC
13F CIK 1177206 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
14,925
46
Nuveen, LLC
13F CIK 1871926 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
14,751
46.1
Nuveen Small Cap Blend Index Fund
Fund S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
10,397
47
OCCUDO QUANTITATIVE STRATEGIES LP
13F CIK 1819697 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
14,558
48
Compound Planning, Inc.
13F CIK 1978879 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
13,308
49
XTX Topco Ltd
13F CIK 1828301 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
13,302
50
AUER GROWTH
Fund S000020493 · Registered fund · May 31, 2026
Unified Series Trust, not summed
13,000

16 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 187 holders

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Key facts CIK 1132651 CUSIP 031001100 13F (30d) 18 filings 18 filers Visit website