United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

US · SEC FORM 4

AUBURN NATIONAL BANCORPORATION, INC

AUBN · Nasdaq · CIK 0000750574 · Financial Services · Banks—Regional

INSIDER SIGNAL

70.4 / 100

6 buyers · 20 purchase transaction lines · $46.8K gross purchase

WHY THIS SIGNAL?

Buyer breadthStrong

Purchase sizeLow

RoleModerate

RecencyModerate

ConvictionStrong

Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+35.0 / 35

Purchase size+5.0 / 25

Role+13.0 / 20

Recency+7.4 / 10

Conviction+10.0 / 10

What is holding the score back?

⚠ Purchase size is modest relative to the model scale
⚠ Role scores low · most senior buyer: President\CEO (CEO, chair and 10% owners score lowest)
✓ Cluster breadth is broad · 4+ insiders
✓ Recent activity · latest purchase 2026-09-30

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct

HAM WILLIAM F JRDirector

●●●

HOUSEL DAVID EDirector

●●●

O'DONNELL SHANNONSenior Vice President

●●

Barrett J TuttDirector

●●

Hedges David APresident\CEO

●

Conn Walton T Jr.Director

●

● Purchase▼ Sale○ Other

—

Purchase breadth & concentration

QUALIFYING BUYERS6

PURCHASE CONCENTRATION51%Largest buyer: Hedges David A · $23.8K

CLUSTER BUYING · 15D4 insidersPeak activity: 2026-07-02–2026-07-02

Roles in the peak window: Director, Senior Vice President. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

70.4 / 100

Latest recorded score

↓ -0.3 ptsversus the previous recorded snapshot

Oct 1371.2
Oct 1471.0
Oct 1570.8
Oct 1670.7
Oct 1870.4

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

44Purchases

0Sales

10Other Form 4 lines

31SEC filings · 365 days

BUYING20 qualifying P line(s) · 180 days

SELLING0 sale line(s) · context only

OTHER0 exercise / withholding / award / gift / other lines

10b5-1 / PLANNEDNot detected in parsed evidence

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M: -1.1%
3M: -1.7%
6M: +11.7%
12M: +4.1%

Volatility & liquidity

Volatility: 37.8%
Beta: —
Avg daily value: USD 46,431

Valuation

Market cap: USD 92.5M
P/E: 12.7×

Fundamentals

Profit margin: —
ROE: 7.9%
Industry: Banks—Regional

Market data

Price data up to: 2026-10-09 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, P/E, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-08-10 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short: 5,797
Previous report: 5,018
Avg daily volume: 3,329
Days to cover: 1.7

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction date	Reporting owner	Type	Security	Shares	Avg. price	Approx. value	Source
2026-09-30	O'DONNELL SHANNON	Purchase (P)	common stock, par value $0.1	27	USD 27.53	USD 743	SEC filing ↗
2026-09-30	HOUSEL DAVID E	Purchase (P)	common stock, par value $0.1	51	USD 27.49	USD 1,402	SEC filing ↗
2026-09-30	HAM WILLIAM F JR	Purchase (P)	common stock, par value $0.1	47	USD 27.41	USD 1,288	SEC filing ↗
2026-09-30	Barrett J Tutt	Purchase (P)	common stock, par value $0.1	73	USD 27.50	USD 2,007	SEC filing ↗
2026-07-02	O'DONNELL SHANNON	Purchase (P)	common stock, par value $0.1	27	USD 26.54	USD 717	SEC filing ↗
2026-07-02	HOUSEL DAVID E	Purchase (P)	common stock, par value $0.1	53	USD 26.63	USD 1,411	SEC filing ↗
2026-07-02	HAM WILLIAM F JR	Purchase (P)	common stock, par value $0.1	47	USD 26.90	USD 1,264	SEC filing ↗
2026-07-02	HAM WILLIAM F JR	Purchase (P)	common stock	10	USD 26.01	USD 260	SEC filing ↗
2026-07-02	Barrett J Tutt	Purchase (P)	common stock, par value $0.1	74	USD 26.62	USD 1,970	SEC filing ↗
2026-05-06	Hedges David A	Purchase (P)	common stock, par value $0.01	1,000	USD 23.75	USD 23,750	SEC filing ↗
2026-05-05	HOUSEL DAVID E	Purchase (P)	common stock, par value $0.01	150	USD 23.96	USD 3,594	SEC filing ↗
2026-04-30	Conn Walton T Jr.	Purchase (P)	common stock, par value $0.01	350	USD 23.90	USD 8,365	SEC filing ↗
2026-04-14	O'DONNELL SHANNON	Purchase (P)	common stock, par value $0.01	30	USD 23.61	USD 708	SEC filing ↗
2026-04-14	HOUSEL DAVID E	Purchase (P)	common stock, par value $0.1	58	USD 23.58	USD 1,368	SEC filing ↗
2026-04-14	HAM WILLIAM F JR	Purchase (P)	common stock, par value $0.1	53	USD 23.72	USD 1,257	SEC filing ↗

Form 4 evidence

54 transaction lines in the latest 365-day window; 349 in local history.

Date	Owner	Type	Security	Shares	Avg. price	Approx. value	Source
2026-09-30	O'DONNELL SHANNON	Purchase (P)	common stock, par value $0.1	27	USD 27.53	USD 743	SEC filing ↗
2026-09-30	HOUSEL DAVID E	Purchase (P)	common stock, par value $0.1	51	USD 27.49	USD 1,402	SEC filing ↗
2026-09-30	HAM WILLIAM F JR	Purchase (P)	common stock, par value $0.1	47	USD 27.41	USD 1,288	SEC filing ↗

Show recent Form 4 evidence (30 grouped rows)

Date	Owner	Type	Security	Shares	Avg. price	Approx. value	Source
2026-09-30	O'DONNELL SHANNON	Purchase (P)	common stock, par value $0.1	27	USD 27.53	USD 743	SEC filing ↗
2026-09-30	HOUSEL DAVID E	Purchase (P)	common stock, par value $0.1	51	USD 27.49	USD 1,402	SEC filing ↗
2026-09-30	HAM WILLIAM F JR	Purchase (P)	common stock, par value $0.1	47	USD 27.41	USD 1,288	SEC filing ↗
2026-09-30	Barrett J Tutt	Purchase (P)	common stock, par value $0.1	73	USD 27.50	USD 2,007	SEC filing ↗
2026-07-02	O'DONNELL SHANNON	Purchase (P)	common stock, par value $0.1	27	USD 26.54	USD 717	SEC filing ↗
2026-07-02	HOUSEL DAVID E	Purchase (P)	common stock, par value $0.1	53	USD 26.63	USD 1,411	SEC filing ↗
2026-07-02	HAM WILLIAM F JR	Purchase (P)	common stock, par value $0.1	47	USD 26.90	USD 1,264	SEC filing ↗
2026-07-02	HAM WILLIAM F JR	Purchase (P)	common stock	10	USD 26.01	USD 260	SEC filing ↗
2026-07-02	Barrett J Tutt	Purchase (P)	common stock, par value $0.1	74	USD 26.62	USD 1,970	SEC filing ↗
2026-05-06	Hedges David A	Purchase (P)	common stock, par value $0.01	1,000	USD 23.75	USD 23,750	SEC filing ↗
2026-05-05	HOUSEL DAVID E	Purchase (P)	common stock, par value $0.01	150	USD 23.96	USD 3,594	SEC filing ↗
2026-04-30	Conn Walton T Jr.	Purchase (P)	common stock, par value $0.01	350	USD 23.90	USD 8,365	SEC filing ↗
2026-04-14	O'DONNELL SHANNON	Purchase (P)	common stock, par value $0.01	30	USD 23.61	USD 708	SEC filing ↗
2026-04-14	HOUSEL DAVID E	Purchase (P)	common stock, par value $0.1	58	USD 23.58	USD 1,368	SEC filing ↗
2026-04-14	HAM WILLIAM F JR	Purchase (P)	common stock, par value $0.1	53	USD 23.72	USD 1,257	SEC filing ↗
2026-04-14	HAM WILLIAM F JR	Purchase (P)	common stock	11	USD 23.25	USD 256	SEC filing ↗
2026-04-14	Barrett J Tutt	Purchase (P)	common stock, par value $0.1	83	USD 23.64	USD 1,962	SEC filing ↗
2026-03-11	Conn Walton T Jr.	Purchase (P)	common stock, par value $0.01	200	USD 24.10	USD 4,820	SEC filing ↗
2026-03-10	Walker William James IV	Tax withholding (F)	common stock, par value $0.01	121	USD 23.85	USD 2,886	SEC filing ↗
2026-03-10	Walker William James IV	Award / grant (A)	common stock, par value $0.01	8	USD 0.00	USD 0	SEC filing ↗
2026-03-10	Smith Robert Lawrence	Tax withholding (F)	common stock, par value $0.01	122	USD 23.85	USD 2,910	SEC filing ↗
2026-03-10	Smith Robert Lawrence	Award / grant (A)	common stock, par value $0.01	8	USD 0.00	USD 0	SEC filing ↗
2026-03-10	O'DONNELL SHANNON	Tax withholding (F)	common stock, par value $0.01	114	USD 23.85	USD 2,719	SEC filing ↗
2026-03-10	O'DONNELL SHANNON	Tax withholding (F)	common stock, par value $0.01	114	USD 23.85	USD 2,719	SEC filing ↗
2026-03-10	O'DONNELL SHANNON	Award / grant (A)	common stock, par value $0.01	7	USD 0.00	USD 0	SEC filing ↗
2026-03-10	O'DONNELL SHANNON	Award / grant (A)	common stock, par value $0.01	7	USD 0.00	USD 0	SEC filing ↗
2026-03-10	Hedges David A	Tax withholding (F)	common stock, par value $0.01	169	USD 23.85	USD 4,031	SEC filing ↗
2026-03-10	Hedges David A	Award / grant (A)	common stock, par value $0.01	10	USD 0.00	USD 0	SEC filing ↗
2026-02-24	Conn Walton T Jr.	Purchase (P)	common stock, par value $0.01	100	USD 24.75	USD 2,475	SEC filing ↗
2026-01-29	Conn Walton T Jr.	Purchase (P)	common stock, par value $0.1	175	USD 25.17	USD 4,405	SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date	2026-10-18
Ranking version	US-v1.2
Data quality	PASS ELIGIBLE · —
Ticker	AUBN
CIK	0000750574
Sector	Financial Services
Industry	Banks—Regional Yahoo Finance
SEC SIC	6022 State Commercial Banks
Exchange	Nasdaq

Data coverage

Local Form 4 history	349 transaction lines from 2020-01-21 to 2026-09-30 310 P purchase lines · 12 S sale lines · 27 other lines
SEC company submissions	Open SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.