Auburn National Bancorporation, Inc.
Auburn National Bancorporation, Inc. (AUBN) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · AUBN · as of Sep 30, 2025
Ownership Breakdown
24
Institutional Holders
▼ 1 vs Q2
$11.36M
Total Inst. Value
▲ $1.74M vs Q2
3.49M
Shares Outstanding
freeFloat 43.18%
432,346
13F Shares Held
▲ 56,297 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
AUBN largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC state commercial banks | 77.1K | 2.21% | 2.21% | $2.09B | Nov 7, 2025 | ▲ 2.4K |
LPL FINANCIAL LLC state commercial banks | 51.5K | 1.48% | 1.48% | $1.26B | Nov 12, 2025 | ▲ 31.9K |
TRUFFLE HOUND CAPITAL, LLC state commercial banks | 46.6K | 1.33% | 1.33% | $1.26B | Nov 6, 2025 | ▲ 18.5K |
DIMENSIONAL FUND ADVISORS LP state commercial banks | 41.8K | 1.20% | 1.20% | $1.13B | Nov 12, 2025 | ▲ 407 |
BRIDGEWAY CAPITAL MANAGEMENT, LLC state commercial banks | 30.0K | 86.00% | 86.00% | $814.55M | Nov 14, 2025 | ▲ 1.4K |
APTUS CAPITAL ADVISORS, LLC state commercial banks | 27.3K | 78.11% | 78.11% | $668.88M | Nov 12, 2025 | ▼ 200 |
GEODE CAPITAL MANAGEMENT, LLC state commercial banks | 25.2K | 72.11% | 72.11% | $683.15M | Nov 12, 2025 | ▲ 234 |
IFG ADVISORY, LLC state commercial banks | 22.5K | 64.49% | 64.49% | $552.21M | Nov 12, 2025 | — held |
TRUIST FINANCIAL CORP state commercial banks | 19.6K | 55.97% | 55.97% | $479.24M | Nov 3, 2025 | — held |
RENAISSANCE TECHNOLOGIES LLC state commercial banks | 16.5K | 47.25% | 47.25% | $469.52M | Nov 13, 2025 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
11
Increased
+56.4K shares1
New Positions
first time holders4
Decreased
−558 shares2
Sold Out
fully exitedNet shares change (top 50)
+55.8K
+56.4K / −558
Net new holders
+6
1 new / 2 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
AUBN insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
12
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
O'DONNELL SHANNON Senior Vice President | Jun 5, 2026 | Award | 1,084 | — | — | 1.1K | Form 4 ↗ |
Walker William James IV SVP/CFO | Jun 5, 2026 | Award | 1,207 | — | — | 1.2K | Form 4 ↗ |
Hedges David A President\CEO | Jun 5, 2026 | Award | 2,078 | — | — | 2.1K | Form 4 ↗ |
Smith Robert Lawrence SVP/CLO | Jun 5, 2026 | Award | 1,190 | — | — | 1.2K | Form 4 ↗ |
Hedges David A President\CEO | May 6, 2026 | Purchase | 1,000 | $23.75 | $23.8K | 14.4K | Form 4 ↗ |
HOUSEL DAVID E director | May 5, 2026 | Purchase | 150 | $23.96 | $3.6K | 9.3K | Form 4 ↗ |
Conn Walton T Jr. director | Apr 30, 2026 | Purchase | 150 | $23.90 | $3.6K | 1.7K | Form 4 ↗ |
Conn Walton T Jr. director | Apr 30, 2026 | Purchase | 200 | $23.89 | $4.8K | 1.5K | Form 4 ↗ |
O'DONNELL SHANNON Senior Vice President | Apr 14, 2026 | Purchase | 13 | $23.46 | $304.954 | 1.9K | Form 4 ↗ |
O'DONNELL SHANNON Senior Vice President | Apr 14, 2026 | Purchase | 17 | $23.72 | $403.274 | 1.9K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Auburn National Bancorporation, Inc. (AUBN) is primarily owned by institutional investors, who hold approximately 12.4% of total shares outstanding. Company insiders own approximately 56.82%, while retail and public investors account for the remaining 30.80%.
The largest institutional shareholder of Auburn National Bancorporation, Inc. is VANGUARD GROUP INC, holding approximately 77,085 shares — equal to 2.21% of outstanding shares — as of September 30, 2025.
A total of 24 institutional investors currently hold AUBN stock, with a combined institutional value of approximately $11,362,187 as of the most recent 13F filing period.
Frequently asked questions
AUBN ownershipAuburn National Bancorporation, Inc. (AUBN) is primarily owned by institutional investors, who hold approximately 12.4% of shares. The largest shareholder is VANGUARD GROUP INC with a 2.21% stake. Company insiders hold 56.82%. Data sourced from SEC Form 13F as of September 30, 2025.