---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-055482"
form_type: "8-K"
ticker: "ACNB"
cik: "0000715579"
company_name: "ACNB CORP"
filed_at: "2025-12-05T23:59:59+00:00"
generated_at: "2026-05-16T14:24:45.519559+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# ACNB Corp executes $74.6M securities repositioning, expects $2.6M income boost

## Summary
- Sold $74.6M book value of low-yield agency debt (avg yield 1.13%) for after-tax loss of ~$2.8M.
- Net proceeds ~$71.1M used to buy higher-yield agency MBS/CMO (avg yield 4.80%, avg life 5.39 years).
- Repositioning expected to improve interest income by ~$2.6M over 12 months; loss recovery in ~1.42 years.
- No impact on stockholders' equity or book value per share; capital remains well above well-capitalized levels.
- Company expects Q4 2025 profit despite the loss from this repositioning.

## SEC filing metadata
- accession: 0001628280-25-055482
- form_type: 8-K
- ticker: ACNB
- cik: 0000715579
- company_name: ACNB CORP
- filed_at: 2025-12-05T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/715579/000162828025055482/0001628280-25-055482-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/715579/000162828025055482/acnb-20251202.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-055482
- JSON: https://secwatch.observer/filing/0001628280-25-055482.json
- Plain text: https://secwatch.observer/filing/0001628280-25-055482.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.