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Property and Equipment, Net
 9 Months Ended
Jun. 30, 2025
Property, Plant and Equipment [Abstract]  
Property and Equipment, Net

5. Property and Equipment, Net

Property and equipment, net consisted of the following as of June 30, 2025 and September 30, 2024:

 

 

 

June 30,

 

 

September 30,

 

 

 

2025

 

 

2024

 

 

 

(in thousands)

 

Leasehold improvements

 

$

36,823

 

 

$

13,975

 

Laboratory and office equipment

 

 

16,092

 

 

 

15,701

 

Furniture

 

 

3,404

 

 

 

3,117

 

Computer equipment

 

 

859

 

 

 

1,101

 

Purchased software

 

 

615

 

 

 

1,093

 

Construction in progress

 

 

1,345

 

 

 

22,748

 

 

 

 

59,138

 

 

 

57,735

 

Less: Accumulated depreciation and amortization

 

 

(22,521

)

 

 

(25,047

)

 

 

$

36,617

 

 

$

32,688

 

 

As of September 30, 2024, construction in progress related primarily to leasehold improvements for the new laboratory and office space located at 4 Kingsbury Avenue in Watertown, Massachusetts. We moved into the facility in November 2024 and placed substantially all of those costs into service at that time.