Security Snapshot

AUBURN NATIONAL BANCORPORATION, INC - Common Stock, par value $0.01 (AUBN) Institutional Ownership

CUSIP: 050473107

13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026

13F reference period

Q3 2026

Institutions Reporting

15

Shares (Excl. Options)

323.53KFull value: 323,532 · shares · 30 Sep 2026

Price

$26.25

The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.

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Security type / class
Equity / Common Stock, par value $0.01
Symbol
AUBN on Nasdaq
All holders as of 30 Sep 2026
Q3 2026
Total 13F shares
323,532
Latest holder snapshot 5 signals
Total 13F value
$8,492,885
Portfolio coverage rank
0%
Share change
-85
Value change
-$15,115
Number of holders
15
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
3,489,417
SEC-reported price per share
$26.25
Insider filing price
$26.25
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • AUBN - AUBURN NATIONAL BANCORPORATION, INC - Common Stock, par value $0.01 is tracked under CUSIP 050473107.
  • 15 institutions reported positions in Q3 2026.
  • 3 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 27 to 15 between Q2 2026 and Q3 2026.
  • SEC-reported value moved from
    $10.52MFull value: $10,524,125 · USD · 30 Jun 2026
    to
    $8.49MFull value: $8,492,885 · USD · 30 Sep 2026
    .

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 15 institutions filings for Q3 2026.

Open SEC evidence

Security key

050473107

13F reference period

Q3 2026

13F holders

15

13D/G owners

3

CIK / CUSIP context first

Open Q3 2026 holders AUBN full holder history AUBURN NATIONAL BANCORPORATION, INC SEC filings AUBURN NATIONAL BANCORPORATION, INC company facts AUBURN NATIONAL BANCORPORATION, INC insider transactions

Broader feeds

Latest 13F filings Latest 13D/G filings All securities

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
3
Security
AUBN
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
MAY ANNE M 8.3% $6,939,018 288,885 Anne M. May 11 Sep 2025
Spencer Sandra J. 7.4% $6,202,300 258,214 Sandra J. Spencer 11 Sep 2025
Spencer Bruce Steven 7.2% $6,034,737 251,238 Bruce Steven Spencer 11 Sep 2025
As of 30 Sep 2026, 15 institutional investors reported holding
323.53KFull value: 323,532 · shares · 30 Sep 2026
shares of AUBURN NATIONAL BANCORPORATION, INC - Common Stock, par value $0.01 (AUBN). This represents 9.3% of the company’s total
3.49MFull value: 3,489,417 · shares · Stored outstanding share count
outstanding shares.

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
51
Headline period
Q3 2026
Rows shown
1-25 of 51
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 323,532 $8,492,885 -$15,115 $26.25 15
2026 Q2 389,199 $10,524,125 -$206,735 $27.04 27
2026 Q1 397,933 $9,496,429 -$132,731 $23.86 24
2025 Q4 425,606 $11,470,242 +$239,873 $26.95 23
2025 Q3 432,346 $11,362,187 +$1,442,522 $26.62 24
2025 Q2 376,048 $9,621,354 +$781,265 $25.00 25
2025 Q1 344,912 $7,447,134 -$221,706 $21.59 23
2024 Q4 350,911 $8,243,072 +$990,084 $23.49 24
2024 Q3 297,182 $6,805,613 +$762,344 $22.90 20
2024 Q2 264,116 $4,831,008 -$534,896 $18.29 20
2024 Q1 290,485 $5,596,434 -$215,746 $19.28 20
2023 Q4 299,507 $6,373,628 +$254,258 $21.28 22
2023 Q3 287,559 $6,147,991 +$632,450 $21.40 23
2023 Q2 244,343 $5,215,196 -$448,331 $21.26 20
2023 Q1 265,778 $6,023,397 +$25,683 $22.66 20
2022 Q4 264,672 $6,104,699 -$48,346 $23.00 21
2022 Q3 282,002 $6,474,987 -$125,630 $23.02 18
2022 Q2 269,474 $7,286,027 -$37,808 $27.02 21
2022 Q1 267,839 $8,877,429 +$256,512 $33.18 22
2021 Q4 260,332 $8,353,420 -$586,342 $32.30 24
2021 Q3 278,685 $9,440,442 -$1,177,808 $33.92 27
2021 Q2 312,387 $11,081,461 -$6,213,695 $35.48 31
2021 Q1 481,406 $18,473,130 -$52,363 $38.37 33
2020 Q4 480,793 $20,044,721 +$1,046,970 $41.69 37
2020 Q3 455,991 $16,548,073 -$1,090,367 $36.28 39
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