AUBN
Auburn National Bancorporation, IncCompany with tickers: AUBN
CIK
750574
CUSIP
050473107
Shares Outstanding
3,493,256
13F Activity (30d)
23 filings
21 filers
Holders: 25
Total Value: $9,498,671
Total Shares: 397,934
Institutional Ownership Trend
Holder Concentration
Across 25 13F filers · Δ vs Dec 31, 2025Top Holder
12.7%
−6.2 pts
Top 5
53.8%
−6.0 pts
Top 10
81.0%
−5.0 pts
HHI
801
Broadly held
−166
Quarterly Activity
vs Dec 31, 2025
New
6
Increased
5
Decreased
3
Sold Out
5
Unchanged
11
Holder count:
+1
Institutional value:
-17.2%
Shares held:
-6.5%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Large CAPTRUST FINANCIAL ADVISORS | +10,177 | 19,188 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | +1,451 | 32,281 | |
| Mega BlackRock, Inc. | +1,168 | 7,920 | |
| Mid EverSource Wealth Advisors, LLC | +270 | 540 | |
| Small JAMISON PRIVATE WEALTH MANAGEMENT, INC. | +4 | 12,514 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega LPL Financial LLC | −992 | 50,573 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | −403 | 25,229 | |
| Mega UBS Group AG | −3 | 13 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 39,562 | $944,344 | |
| Large Empowered Funds, LLC | 16,781 | $400,562 | |
| Mega VANGUARD FIDUCIARY TRUST CO | 12,669 | $302,409 | |
| Small M3F, Inc. | 9,151 | $218,434 | |
| Mega Vanguard Global Advisers, LLC | 964 | $23,010 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD GROUP INC | 80,269 | $2,163,248 | |
| Micro IFG Advisory, LLC | 22,530 | $607,183 | |
| Mid UNITED CAPITAL FINANCIAL ADVISORS, LLC | 15,724 | $423,761 | |
| Mid Farther Finance Advisors, LLC | 8 | $215 | |
| Mega BANK OF AMERICA CORP /DE/ | 2 | $53 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mega LPL Financial LLC | $1,207,177 | 12.71% | 50,573 | Shares | Sole | 2026-05-06 | ||||
| Small Truffle Hound Capital, LLC | $1,193,500 | 12.56% | 50,000 | Shares | Sole | 2026-05-07 | ||||
| Mega DIMENSIONAL FUND ADVISORS LP | $998,887 | 10.52% | 41,847 | Shares | Sole | 2026-05-07 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $944,344 | 9.94% | 39,562 | Shares | Defined | 2026-05-15 | ||||
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | $770,547 | 8.11% | 32,281 | Shares | Sole | 2026-05-15 | ||||
| Mid Aptus Capital Advisors, LLC | $651,412 | 6.86% | 27,290 | Shares | Sole | 2026-05-11 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $602,215 | 6.34% | 25,229 | Shares | Defined | 2026-05-15 | ||||
| Large TRUIST FINANCIAL CORP | $466,730 | 4.91% | 19,553 | Shares | Defined | 2026-04-27 | ||||
| Large CAPTRUST FINANCIAL ADVISORS | $458,017 | 4.82% | 19,188 | Shares | Sole | 2026-05-15 | ||||
| Large Empowered Funds, LLC | $400,562 | 4.22% | 16,781 | Shares | Other | 2026-05-15 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $394,069 | 4.15% | 16,509 | Shares | Sole | 2026-05-14 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $302,409 | 3.18% | 12,669 | Shares | Defined | 2026-05-08 | ||||
| Small JAMISON PRIVATE WEALTH MANAGEMENT, INC. | $298,709 | 3.14% | 12,514 | Shares | Sole | 2026-04-27 | ||||
| Mid RBF Capital, LLC | $238,700 | 2.51% | 10,000 | Shares | Sole | 2026-05-18 | ||||
| Small M3F, Inc. | $218,434 | 2.30% | 9,151 | Shares | Sole | 2026-04-28 | ||||
| Mega BlackRock, Inc. | $189,049 | 1.99% | 7,920 | Shares | Sole | 2026-05-13 | ||||
| Mega MORGAN STANLEY | $92,519 | 0.97% | 3,876 | Shares | Defined | 2026-05-15 | ||||
| Large OSAIC HOLDINGS, INC. | $31,054 | 0.33% | 1,301 | Shares | Defined | 2026-05-15 | ||||
| Mega Vanguard Global Advisers, LLC | $23,010 | 0.24% | 964 | Shares | Defined | 2026-05-08 | ||||
| Mid EverSource Wealth Advisors, LLC | $12,888 | 0.14% | 540 | Shares | Sole | 2026-05-18 | ||||
| Mid Blue Trust, Inc. | $2,339 | 0.02% | 98 | Shares | Sole | 2026-04-20 | ||||
| Large NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $1,456 | 0.02% | 61 | Shares | Defined | 2026-05-07 | ||||
| Mega JPMORGAN CHASE & CO | $334 | 0.00% | 14 | Shares | Defined | 2026-05-13 | ||||
| Mega UBS Group AG | $310 | 0.00% | 13 | Shares | Defined | 2026-05-05 | ||||
| Mega WELLS FARGO & COMPANY/MN | $0 | 0.00% | 0 | Shares | Defined | 2026-05-11 | ||||
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