Auburn National Bancorporation, Inc. (AUBN) Ownership

NASDAQ: AUBNTop holders, insider trades and short interest.

AUBN ownership summary

as of October 18, 2026
Institutions
14.4%
of shares outstanding
Insiders
21.62%
of shares outstanding
Shares outstanding
3.5M
Float
2.2M
shares available to trade
Short interest
0.20%
5,797 shares short
Days to cover
2.24
short interest up 15.5% vs prior month
  • Institutions 14.42%
  • Insiders 21.62%
  • Other investors 63.96%

AUBN top institutional holders

20 largest
Auburn National Bancorporation, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1LPL Financial Corp1.45%51K$1.3M—June 30, 2026
2Truffle Hound Capital, LLC1.44%50K$1.3M—June 30, 2026
3Dimensional Fund Advisors, Inc.1.20%42K$1.1M+126 (+0.3%)June 30, 2026
4Bridgeway Capital Management, LLC0.95%33K$879,095+930 (+2.9%)June 30, 2026
5Geode Capital Management, LLC0.74%26K$681,153+504 (+2.0%)June 30, 2026
6Vanguard Capital Management, LLC0.73%25K$673,582−14,115 (−35.7%)June 30, 2026
7Aptus Capital Advisors, LLC0.58%20K$538,135−6,960 (−25.5%)June 30, 2026
8BB&T Corp.0.56%20K$517,568—June 30, 2026
9CapTrust Financial Advisors0.54%19K$501,474−243 (−1.3%)June 30, 2026
10Fourthstone LLC0.51%18K$471,325+17,806 (0.0%)June 30, 2026
11Empowered Funds, LLC0.51%18K$468,810+930 (+5.5%)June 30, 2026
12Renaissance Technologies Corp0.47%16K$431,699−200 (−1.2%)June 30, 2026
13Vanguard Fiduciary Trust Co0.35%12K$320,578−558 (−4.4%)June 30, 2026
14JAMISON PRIVATE WEALTH MANAGEMENT INC0.34%12K$316,475−561 (−4.5%)September 30, 2026
15BlackRock Inc0.30%10K$273,806+2,424 (+30.6%)June 30, 2026
16RBF LLC0.29%10K$264,700—June 30, 2026
17Morgan Stanley - Brokerage Accounts0.11%3,877$102,624+1 (+0.0%)June 30, 2026
18Advisor Group Holdings, Inc.0.04%1,301$34,437—June 30, 2026
19Vanguard Global Advisers, LLC0.03%964$25,517—June 30, 2026
20EverSource Wealth Advisors, LLC0.01%270$7,147−270 (−50.0%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 7 holders added 23K shares and 7 cut 23K.

AUBN top mutual fund and ETF holders

20 largest
Auburn National Bancorporation, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1EA Bridgeway Omni Small-Cap Value ETF0.51%18K$468,810—September 30, 2026
2Auer Growth0.43%15K$397,050—August 31, 2026
3DFA US Micro Cap I0.37%13K$337,095—August 31, 2026
4Fidelity Extended Market Index0.34%12K$316,952−64 (−0.5%)August 31, 2026
5Bridgeway Omni Small-Cap Value N0.33%12K$304,405—June 30, 2026
6iShares Micro-Cap ETF0.27%9,484$251,041−65 (−0.7%)September 30, 2026
7DFA US Core Equity 2 I0.18%6,204$164,220—August 31, 2026
8Fidelity Total Market Index0.14%4,756$125,891—August 31, 2026
9EA Bridgeway Ultra-Small Company Mkt ETF0.11%3,948$104,504—September 30, 2026
10Fidelity Series Total Market Index0.09%3,304$87,457—August 31, 2026
11DFA US Small Cap I0.09%3,016$79,834—August 31, 2026
12Dimensional US Core Equity 2 ETF0.08%2,938$77,769—September 30, 2026
13DFA US Vector Equity I0.08%2,722$72,051—August 31, 2026
14DFA US Core Equity 1 I0.08%2,633$69,696—August 31, 2026
15DFA US Targeted Value I0.04%1,419$37,561—August 31, 2026
16Vanguard U.S. Eq Idx £ Acc0.03%964$25,517—August 31, 2026
17Dimensional Global Core Equity USD Acc0.02%821$21,732—August 31, 2026
18Dimensional US Targeted Value ETF0.02%804$21,282—September 30, 2026
19Schwab Total Stock Market Index0.02%800$21,176—August 31, 2026
201290 VT Micro Cap K0.02%637$16,861−112 (−15.0%)August 31, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

AUBN insider transactions

latest 20
Auburn National Bancorporation, Inc. insider transactions
DateNameTransactionPriceSharesValue
2026-04-14J Tutt BarrettBuy$23.6483$1,962
2026-04-14Shannon O'donnellBuy$23.6130$708
2026-04-14William F Ham JrBuy$23.6464$1,513
2026-04-14David E HouselBuy$23.5858$1,368
2026-03-11Walton T Jr. ConnBuy$24.10200$4,820
2026-02-24Walton T Jr. ConnBuy$24.75100$2,475
2026-01-29Walton T Jr. ConnBuy$25.00100$2,500
2026-01-29Walton T Jr. ConnBuy$25.17175$4,405
2026-01-14David E HouselBuy$27.0951$1,382
2026-01-14J Tutt BarrettBuy$27.0972$1,950
2026-01-14Shannon O'donnellBuy$27.0927$731
2026-01-14William F Ham JrBuy$27.0855$1,489
2025-12-03David E HouselBuy$24.1725$604
2025-12-03David E HouselBuy$24.99100$2,499
2025-12-01Walton T Jr. ConnBuy$24.75200$4,950
2025-10-08David E HouselBuy$27.4749$1,346
2025-10-08J Tutt BarrettBuy$27.4670$1,922
2025-10-08Shannon O'donnellBuy$27.4625$686
2025-10-08William F Ham JrBuy$27.4754$1,483
2025-09-09David E HouselBuy$27.19100$2,719

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

AUBN shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns AUBN

Institutional investors own 14.4% of Auburn National Bancorporation's shares and insiders 21.62%. The largest holder is LPL Financial Corp with 1.45% of the shares (51K), as of June 30, 2026. Among the top 20 institutions, 7 added shares and 7 reduced their stake in the latest filings. Short interest is 0.20% of the float, or 2.24 days of average trading volume. The share count fell 4.0% since 2014.

Related: AUBN key metrics, AUBN dividend history. See the AUBN stock overview for the latest quote and news.

AUBN ownership FAQ

Who owns the most Auburn National Bancorporation stock?

The largest shareholders of Auburn National Bancorporation are LPL Financial Corp (1.45%), Truffle Hound Capital, LLC (1.44%), Dimensional Fund Advisors, Inc. (1.20%), Bridgeway Capital Management, LLC (0.95%), Geode Capital Management, LLC (0.74%).

What percentage of Auburn National Bancorporation is owned by institutions?

Institutions hold 14.4% of Auburn National Bancorporation's shares outstanding; insiders hold 21.62%.

Which funds own Auburn National Bancorporation?

The largest fund holders of Auburn National Bancorporation are EA Bridgeway Omni Small-Cap Value ETF (0.51%), Auer Growth (0.43%), DFA US Micro Cap I (0.37%), Fidelity Extended Market Index (0.34%), Bridgeway Omni Small-Cap Value N (0.33%).

What is Auburn National Bancorporation's short interest?

5,797 shares of Auburn National Bancorporation were sold short, 0.20% of the float; at the average daily volume it would take 2.24 days to cover.

Are insiders buying or selling Auburn National Bancorporation?

Of the latest 20 reported insider transactions in Auburn National Bancorporation (since September 9, 2025), 20 were purchases and 0 were sales.

How many shares of Auburn National Bancorporation are outstanding?

Auburn National Bancorporation has 3.5M shares outstanding, of which 2.2M are in the public float.

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