19. LEASES

The Company has real estate operating leases in Cambridge, Andover and Bedford, Massachusetts and Columbus, Ohio that provide for scheduled annual rent increases throughout each lease’s term. The Company has also identified leases embedded in certain of its manufacturing and supply agreements as the Company determined that it controls the use of the facilities and related equipment therein. For more information related to the leases embedded in manufacturing and supply agreements with Catalent, Inc. (“Catalent”), please refer to Note 23, Commitments and Contingencies.

Bedford, Massachusetts

On April 22, 2022, the Company entered into a lease agreement (the “Bedford Lease”) for 288,000 square feet of to-be-constructed research and development and manufacturing space in Bedford, Massachusetts. The term of the Bedford Lease commences upon the landlord’s completion of the initial construction of the core and shell of the building, at which time the Company will obtain control of the premises and commence internal construction activities. The initial term of the Bedford Lease is anticipated to terminate on December 31, 2038. The Company has two options to extend the lease for a period of ten years each, exercisable under certain conditions and at a market rate determined in accordance with the lease agreement. The lease commenced in May 2023 as the Company obtained control of the premises.

The Bedford Lease provides for a tenant improvement allowance from the landlord of $72.0 million to be used towards costs incurred by the Company in the design and construction of the premises, which was recorded as a reduction to ROU assets and lease liabilities. In August 2024, the Company entered into an amendment to the Bedford Lease to extend the term in which the tenant improvement allowance could be reimbursed from the landlord (the “Bedford Amendment”) through December 2, 2025. The Company also agreed to reimburse the landlord for certain costs incurred in order to fund the extension of the reimbursement period associated with the tenant improvement allowance, totaling $2.9 million. The Bedford Amendment was accounted for as a modification to the Bedford Lease.

In May 2022, in connection with the execution of the Bedford Lease, the Company issued a letter of credit collateralized by cash deposits of $8.4 million, which was included in other non-current assets of the Company’s consolidated balance sheets. Such letter of credit shall be reduced to $5.6 million at the commencement of the fourth rent year, provided certain conditions set forth in the Bedford Lease are satisfied. Additionally, the Company is responsible for reimbursing the landlord for the Company’s share of the property’s operating expenses and property taxes.

 

The Company had a lease liability and ROU asset of $168.9 million and $89.7 million, respectively, on the consolidated balance sheets as of December 31, 2025 related to the Bedford Lease. Tenant improvement costs incurred by the Company that have been reimbursed by the landlord total $69.8 million as of December 31, 2025 and are recorded as an increase to the lease liability within the Company's consolidated balance sheets.

Columbus, Ohio

In December 2018, the Company entered into a lease agreement for a research and development facility in Columbus, Ohio, which was subsequently amended in May 2022 (the “Columbus Amendment,” together with the Columbus Amendment, the lease agreement is referred to as the “Columbus Lease”). The Columbus Lease expands from its current form of approximately 78,000 square feet to 167,000 square feet through a series of expansion spaces commencing at various periods through January 1, 2025.

Each expansion space commences on the date when the landlord will deliver control of that space for the Company to carry out design and construction activities (the “Columbus Commencement Date”). The Company is obligated to pay rent on each expansion space nine months after the Columbus Commencement Date. The Columbus Lease expires on December 31, 2036, and the Company has options to extend the lease by five years in both 2036 and 2041. Each option is exercisable under certain conditions and at a market rate determined in accordance with the lease agreement.

The Company commenced design and construction activities on areas of the premises of approximately 18,000 square feet (the “Second Expansion Space”), 36,000 square feet (the “Initial Expansion Space”), 19,000 square feet (the “Third Expansion Space”) and 16,000 square feet (the “Fourth Expansion Space”) on June 1, 2022, October 1, 2022, September 1, 2023 and January 1, 2025, respectively. As a result, it was determined that the lease related to the Second Expansion Space, the Initial Expansion Space, the Third Expansion Space and the Fourth Expansion Space had commenced on those four dates, respectively. The total ROU asset and lease liability associated with the Columbus Lease, inclusive of the Fourth Expansion Space, Third Expansion Space, the Second Expansion Space and the Initial Expansion Space, was $12.9 million and $21.2 million, respectively, as of December 31, 2025.

Lease Obligations

As of December 31, 2025, ROU assets for operating leases were $125.5 million and operating lease liabilities were $210.6 million. The following table contains a summary of the lease costs recognized and other information pertaining to the Company’s operating leases for the periods indicated:

 

 

 

For the Year Ended December 31,

 

 

 

2025

 

 

2024

 

 

 

(in thousands)

 

Lease cost

 

 

 

 

 

 

Operating lease cost

 

$

32,934

 

 

$

35,020

 

Variable lease cost

 

 

113,453

 

 

 

68,624

 

Total lease cost

 

$

146,387

 

 

$

103,644

 

 

 

 

 

 

 

 

Other information

 

 

 

 

 

 

Operating lease payments

 

$

35,458

 

 

$

33,225

 

Operating lease liabilities arising from obtaining ROU assets

 

$

5,232

 

 

$

35,361

 

Weighted-average remaining lease term

 

11.8 years

 

 

11.7 years

 

Weighted-average discount rate

 

 

7.9

%

 

 

8.0

%

 

The following table summarizes maturities of lease liabilities and the reconciliation of lease liabilities as of December 31, 2025:

 

 

 

For the Year Ended
December 31, 2025

 

 

 

(in thousands)

 

2026

 

$

27,774

 

2027

 

 

25,599

 

2028

 

 

26,336

 

2029

 

 

26,336

 

2030

 

 

27,118

 

Thereafter

 

 

207,152

 

Total minimum lease payments

 

 

340,315

 

Less: imputed interest and tenant incentive reimbursable by lessors

 

 

(129,741

)

Total operating lease liabilities

 

$

210,574

 

Included in the consolidated balance sheets:

 

 

 

Current portion of lease liabilities within other current liabilities

 

$

11,196

 

Lease liabilities, non-current

 

 

199,378

 

Total operating lease liabilities

 

$

210,574

 

Historical Timeline

Fiscal YearFiled
2025Mar 2, 2026Showing above
2024Feb 28, 2025
2023Feb 28, 2024
2022Feb 28, 2023
2021Mar 1, 2022
2020Mar 1, 2021
2019Feb 26, 2020

About Leases Disclosures

Lease disclosures under ASC 842 provide a comprehensive view of a company's leased asset portfolio, including the split between operating and finance leases, discount rates used to present-value future payments, and the maturity schedule of lease obligations. This section reveals a significant source of off-balance-sheet commitments that were largely hidden before the current standard.

Key signals: the weighted-average discount rate affects the size of recorded lease liabilities — a higher rate reduces the reported obligation, so compare the chosen rate against the company's incremental borrowing rate. The operating versus finance lease mix affects both EBITDA and operating income presentation. Watch the maturity table for concentration risk: large payment cliffs in specific years may create cash flow pressure. Variable lease payments excluded from the liability measurement represent real obligations that do not appear on the balance sheet. Compare total lease costs against prior-year operating lease expense to assess the true economic burden.