---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-23-040746"
form_type: "8-K"
ticker: "IONS"
cik: "0000874015"
company_name: "IONIS PHARMACEUTICALS INC"
filed_at: "2023-08-22T23:59:59+00:00"
generated_at: "2026-06-11T05:54:18.339379+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "medium"
source: SEC EDGAR
---

# Ionis closes sale of Carlsbad lots and enters leaseback with Oxford affiliate

## Summary
- Sold Lots 21 and 22 in Carlsbad Oaks North Business Park to Oxford I Asset Management USA Inc.
- Closed lease agreement on same property with affiliate Lots 21 & 22 Owner (DE) LLC.
- Purchase and sale agreement originally entered October 20, 2022; lease terms summarized in prior 8-K.
- Transaction closed on August 21, 2023.

## SEC filing metadata
- accession: 0001140361-23-040746
- form_type: 8-K
- ticker: IONS
- cik: 0000874015
- company_name: IONIS PHARMACEUTICALS INC
- filed_at: 2023-08-22T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: medium
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/874015/000114036123040746/0001140361-23-040746-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/874015/000114036123040746/brhc20057833_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-23-040746
- JSON: https://secwatch.observer/filing/0001140361-23-040746.json
- Plain text: https://secwatch.observer/filing/0001140361-23-040746.txt

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