Acquisitions (Tables)

12 Months Ended

Dec. 31, 2025

Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]

Schedule of Business Combination, Consideration Transferred, Equity Interest

The following table presents the fair value of the consideration transferred for the Merger as of the Akoya Closing Date (in thousands, except for exchange ratio and stock price):

Total Akoya common stock and equity instruments outstanding as of July 7, 2025 to be converted	51,136
Exchange ratio	0.147
Total shares of Quanterix common stock to be issued	7,517
Quanterix stock price per share as of the Akoya Closing Date	$	6.54
Fair value of Akoya common stock and equity instruments converted to Quanterix common stock	$	49,161
Cash consideration paid (1)	$	18,942
Cash paid for debt extinguishment (2)	$	82,131
Fair value of replacement equity awards attributable to pre-acquisition service (3)	$	739
Total fair value of consideration transferred	$	150,973

(1) Represents cash consideration paid to Akoya stockholders, including fractional shares, of $0.37 per share of Akoya common stock.

(2) Represents the repayment of Akoya’s long-term debt upon closing of the acquisition, including $7.0 million of early termination, legal, and prepayment fees.

(3) Represents the fair value of certain equity-based awards held by Akoya employees prior to the acquisition date that have been replaced with Quanterix equity-based awards. The portion of these awards that relates to services performed prior to the acquisition date are included within the purchase price.

Schedule the Preliminary Allocation of the Purchase Price

The following table summarizes the preliminary allocation of the purchase price to the estimated fair values of the assets acquired and liabilities assumed as of the acquisition date (in thousands):

	As of September 30, 2025		Measurement Period Adjustments (1)		As of December 31, 2025
Assets:
Cash and cash equivalents	$	16,108	$	—	$	16,108
Accounts receivable, net of allowance for expected credit losses	8,616		—		8,616
Inventory	25,800		—		25,800
Prepaid expenses and other assets	5,483		—		5,483
Property and equipment, net	12,087		—		12,087
Intangible assets	121,800		—		121,800
Goodwill (2)	23,460		2,916		26,376
Operating lease right-of-use assets	4,585		—		4,585
Finance lease right-of-use assets	1,041		—		1,041
Total assets acquired	218,980		2,916		221,896
Liabilities:
Accounts payable	8,266		—		8,266
Accrued expenses and other liabilities	34,206		2,916		37,122
Deferred revenue	18,879		—		18,879
Operating lease liabilities	5,616		—		5,616
Finance lease liabilities	1,040		—		1,040
Total liabilities assumed	68,007		2,916		70,923
Net assets acquired	$	150,973	$	—	$	150,973

(1)The Company recorded a measurement period adjustment resulting from new information obtained related to an off-market liability and related tax impacts.

(2)Goodwill represents the estimated fair value of the expected synergies from combining Akoya with Quanterix, as well as the value of the acquired workforce. The goodwill is not deductible for income tax purposes and has been fully assigned to the Akoya reporting unit.

The following table summarizes the allocation of the purchase price to the estimated fair values of the assets acquired and liabilities assumed as of the acquisition date (in thousands):

Assets:
Cash and cash equivalents	$	43
Accounts receivable, net of allowance for expected credit losses	49
Inventory	307
Intangible asset (1)	12,900
Goodwill (2)	6,374
Total assets acquired	19,673
Liabilities:
Accounts payable	57
Deferred tax liability (3)	3,007
Total liabilities assumed	3,064
Net assets acquired	$	16,609

(1)The acquired intangible asset is finite-lived, represents developed technology, and has an estimated useful life of 14 years. The determination of the fair value of the definite-lived intangible asset required management judgment and the consideration of a number of factors. In determining the fair value, management primarily relied on a multi-period excess earnings valuation methodology. This methodology required the use of estimates including: projected revenues related to the particular asset, its obsolescence rate, royalty, margin, and discount rates, and certain published or readily available industry benchmark data. In establishing the estimated useful life of the acquired intangible asset, the Company relied primarily on the duration of the cash flows utilized in the valuation model.

(2)Goodwill represents the estimated fair value of the expected synergies from combining Emission with Quanterix, as well as the value of the acquired workforce. The goodwill is not deductible for income tax purposes. During the second quarter of 2025 the Company recorded an impairment charge related to this goodwill (refer to Note 4 - Goodwill & Intangible Assets).

(3)Recorded in other non-current liabilities on the Consolidated Balance Sheets.

Schedule Of Business Combination, Intangible Asset, Acquired

The preliminary fair value of the intangible assets acquired as of the acquisition date was as follows (in thousands):

	Preliminary Fair Value
Definite-lived intangible assets:
Developed technology	$	99,600
Customer relationships	2,900
Total definite-lived intangible assets	102,500
Indefinite-lived intangible assets:
In process research and development	19,300
Total intangible assets	$	121,800

Schedule Of Business Combination, Pro Forma Information

The unaudited pro forma financial information presented below was derived from historical financial records of Quanterix and Akoya and presents the operating results for the periods presented as if the acquisition occurred on January 1, 2024 (in thousands):

	Year Ended December 31,
	2025		2024
Revenues	$	174,269	$	216,145
Net loss	$	(135,454)	$	(96,919)

Schedule of Fair Value of the Aggregate Consideration Paid or Payable

The following table summarizes the fair value of the aggregate consideration paid or payable for Emission as of the Emission Closing Date (in thousands):

Cash paid (1)	$	8,997
Holdback (2)	1,000
Contingent consideration (3)	6,612
Total fair value of consideration transferred	$	16,609

(1)Cash paid represents the contractual amount paid on the Emission Closing Date. Cash acquired was not material.

(2)The holdback is expected to be paid during the first quarter of 2026 and is subject to applicable adjustments.

(3)The acquisition includes contingent consideration discussed in the section titled "Contingent Payments".