---
schema_version: "secwatch.filing_event.v1"
accession: "0001037540-26-000026"
form_type: "8-K"
ticker: null
cik: "0001043121"
company_name: "BOSTON PROPERTIES LTD PARTNERSHIP"
filed_at: "2026-05-29T20:36:57+00:00"
generated_at: "2026-05-29T20:38:14.737211+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.52
calibrated_materiality_score: 0.52
confidence: "high"
source: SEC EDGAR
---

# BXP to sell Sumner Square in DC for $63M, recognizes $18M impairment in Q2 2026

## Summary
- Gross purchase price $63M; non-refundable deposit of ~$6M already paid.
- Non-cash impairment loss of ~$18M (BXP) and ~$17M (BPLP) recognized in Q2 2026.
- Impairment reduces net income per diluted share by ~$0.10; no impact on Funds from Operations.
- Sale is part of strategic asset sales plan outlined at September 2025 Investor Day.
- Closing not guaranteed; no assurance the sale will be consummated.

## SEC filing metadata
- accession: 0001037540-26-000026
- form_type: 8-K
- cik: 0001043121
- company_name: BOSTON PROPERTIES LTD PARTNERSHIP
- filed_at: 2026-05-29T20:36:57+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.52
- calibrated_materiality_score: 0.52
- confidence: high
- sec_items: 2.06, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1043121/000103754026000026/0001037540-26-000026-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1037540/000103754026000026/bxp-20260527.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001037540-26-000026
- JSON: https://secwatch.observer/filing/0001037540-26-000026.json
- Plain text: https://secwatch.observer/filing/0001037540-26-000026.txt

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