Security key
050473107
AUBURN NATIONAL BANCORPORATION, INC - Common Stock, par value $0.01 (AUBN)
CUSIP: 050473107
Q3 2025 13F Holders as of 30 Sep 2025
- Security type / class
- Equity / Common Stock, par value $0.01
- Total 13F shares
- 432,346
- Total 13F value
- $11,362,187
- Share change
- +56,298
- SEC-reported price per share
- $26.62
- Number of holders
- 24
- Value change
- +$1,442,522
- Number of buys
- 12
- Number of sells
- 6
- Shares outstanding
- 3,489,417
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2025
Institutions
24
Top holders
10
AUBN full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q4 2025
AUBURN NATIONAL BANCORPORATION, INC SEC filings
AUBURN NATIONAL BANCORPORATION, INC company facts
Broader feeds
Reporting periods
Holder history for CUSIP 050473107
Recent filing periods:
Ownership snapshot
Top reported holders of AUBN - AUBURN NATIONAL BANCORPORATION, INC - Common Stock, par value $0.01 (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Anne M. May
Disclosed value leader
Anne M. May
Comparable rows
15/15
Latest evidence
11 Sep 2025
3/4/5
13D/G
13F
Lead comparable stake: 8.3%
13D/G row: Anne M. May
Showing 1-6 of 15 holder rows.
Quick read
Anne M. May leads the comparable SEC ownership view at 8.3%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Anne M. May's linked filing trail.
Comparable ownership
Top 5
Anne M. May
8.3%
Sandra J. Spencer
7.4%
Bruce Steven Spencer
7.2%
Michael A. Lawler
0.09%
VANGUARD GROUP INC
2.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Anne M. May |
3/4/5
13D/G
Director
|
8.3%
from 13D/G
|
$12,278,061
511,160 shares
|
— | 11 Sep 2025 |
| Sandra J. Spencer |
13D/G
|
7.4%
|
$6,202,300
258,214 shares
|
$0 | 11 Sep 2025 |
| Bruce Steven Spencer |
13D/G
|
7.2%
|
$6,034,737
251,238 shares
|
$0 | 11 Sep 2025 |
| Michael A. Lawler |
3/4/5
Director
|
0.09%
|
$59,679
3,000 shares
|
— | 28 Apr 2025 |
| VANGUARD GROUP INC |
13F
Company
|
2.1%
|
$1,934,290
74,683 shares
|
— | 30 Jun 2025 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
1.2%
|
$1,072,286
41,401 shares
|
— | 30 Jun 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
24
Shares
432,346
Rows available
24
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2025 vs Q1 2026 Across Filers
Q1 2026 holders
24
Q3 2025 holders
24
Holder diff
0
| Investor | Q1 2026 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q1 2026 value | Q3 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend