Intangible Assets

9 Months Ended

Jun. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

INTANGIBLE ASSETSIntangible assets subject to amortization include patents and a license agreement capitalized as part of the Novartis RNAi asset acquisition in March 2015. The license agreement associated with the Novartis RNAi asset acquisition is being amortized over the estimated life remaining at the time of acquisition, which was 21 years, and the accumulated amortization of the asset is $1.1 million. The patents associated with the Novartis RNAi asset acquisition are being amortized over the estimated life remaining at the time of acquisition, which was 14 years, and the accumulated

amortization of the assets is $11.4 million. Amortization expense for the three months ended June 30, 2022 and 2021 was $0.4 million and $0.4 million, respectively. Amortization expense for the nine months ended June 30, 2022 and 2021 was $1.3 million and $1.3 million, respectively. Amortization expense is expected to be $0.4 million for the remainder of fiscal 2022, $1.7 million in 2023, $1.7 million in 2024, $1.7 million in 2025, $1.7 million in 2026 and $5.2 million thereafter.

The following table provides details on the Company’s intangible asset balances:

	Intangible Assets Subject to Amortization
	(in thousands)
Balance at September 30, 2021	$	13,663
Impairment	—
Amortization	(1,276)
Balance at June 30, 2022	$	12,387