TransMedics signs 498,286 sq ft HQ lease in Somerville, MA; buys two adjacent parcels for $30M

TransMedics Group, Inc.

Lease for ~498,286 sq ft at 188 Assembly Park Drive, Somerville, MA; initial annual base rent of ~$23.9M with 2% annual escalations.
Initial term of 192 months (16 years) from Rent Commencement Date (no later than Feb 1, 2028); two 10-year renewal options.
Landlord provided $18M letter of credit as security deposit; Tenant responsible for 100% of operating and tax expenses.
Acquired two adjacent parcels for $15M each on Jan 8, 2026; parcels total $30M.
New headquarters expected by Jan 1, 2028, replacing current Andover facility.

Key facts

Extracted from this filing and checked against the source text.

Material Agreements SEC 8-K Item 1.01/1.02 confidence 0.9

TransMedics Group, Inc. entered into Lease with BioMed Realty valued at approximately $23.9 million (effective 2026-01-08).

Action: entry
Agreement: lease
Counterparty: BioMed Realty
Value: approximately $23.9 million
Effective: 2026-01-08

Exact text from the filing

On January 8, 2026, TransMedics Group, Inc. (the “Company”) entered into a lease agreement (the “Lease”) with BioMed Realty (the “Landlord”) for the lease of approximately 498,286 square feet of space located at 188 Assembly Park Drive, Somerville, MA 02145 (the “Premises”)

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TransMedics Group, Inc. filing history →

Source: SEC EDGAR

accession 0001193125-26-009816

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