---
schema_version: "secwatch.filing_event.v1"
accession: "0001070081-25-000004"
form_type: "8-K"
ticker: "PTCT"
cik: "0001070081"
company_name: "PTC THERAPEUTICS, INC."
filed_at: "2025-01-03T23:59:59+00:00"
generated_at: "2026-05-28T12:22:35.322205+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# PTC Therapeutics cuts leased space in half, reduces base rent by $57.7M

## Summary
- Surrendered one of two buildings; premises reduced from 360k to 180k sq ft.
- Aggregate base rent reduced by $57.7M; continues paying full rent through Dec 2027 then lower amount.
- Landlord improvement allowance cut from $36.1M to $23.9M.
- Letter of credit increased to $10M from $8.1M; could drop to $5M after Jul 2027 and $2.5M after Dec 2028.
- Amendment effective Dec 31, 2024; related to Warren, NJ facility.

## SEC filing metadata
- accession: 0001070081-25-000004
- form_type: 8-K
- ticker: PTCT
- cik: 0001070081
- company_name: PTC THERAPEUTICS, INC.
- filed_at: 2025-01-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 2.03
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1070081/000107008125000004/0001070081-25-000004-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1070081/000107008125000004/tmb-20241231x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001070081-25-000004
- JSON: https://secwatch.observer/filing/0001070081-25-000004.json
- Plain text: https://secwatch.observer/filing/0001070081-25-000004.txt

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