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Acquisitions | 9 Months Ended
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Sep. 30, 2025
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] |
Acquisitions | Acquisitions Acquisition of business On January 29, 2024, Enpro acquired all of the equity securities of Advanced Micro Instruments, Inc. ("AMI"), a privately held company. AMI, based in Costa Mesa, California, is a leading provider of highly-engineered, application-specific analyzers and sensing technologies that monitor critical parameters to maintain infrastructure integrity, enable process efficiency, enhance safety, and facilitate the clean energy transition. AMI is included within the Sealing Technologies segment. The following unaudited pro forma condensed consolidated financial results of operations for the quarter and nine months ended September 30, 2024 are presented as if the acquisition had been completed prior to 2024:
|  |  | Quarter Ended September 30, |  | Nine Months Ended September 30,
|  |  | 2024 |  | 2024 |  |
|  |  | (in millions)
Pro forma net sales |  |  | $ | 260.9 |  |  | $ | 793.1 |  |  |
Pro forma net income |  |  | $ | 20.0 |  |  | $ | 61.5 |  |  |
These amounts have been calculated after applying our accounting policies and adjusting the results of AMI to reflect the additional depreciation and amortization that would have been charged assuming the fair value adjustments to intangible assets had been applied prior to 2024. These pro forma financial results have been prepared for comparative purposes only and do not reflect the effect of any potential synergies as a result of the integration of AMI. The pro forma information does not purport to be indicative of the results of operations that actually would have resulted had the acquisition of AMI occurred prior to 2024, or of future results of Enpro Inc. Acquisition of non-controlling interests of Enpro subsidiaries In connection with our acquisition of Alluxa in October 2020, three Alluxa executives (the "Alluxa Executives") received rollover equity interests in the form of approximately 7% of the total equity interest of an entity we formed for the purpose of acquiring Alluxa (the "Alluxa Acquisition Subsidiary"). Pursuant to the limited liability operating agreement (the "Alluxa LLC Agreement") that was entered into with the completion of the transaction, each Alluxa Executive had the right to sell to us, and we had the right to purchase from each Alluxa Executive (collectively, the "Put and Call Rights"), one-third of the Alluxa Executive equity interests in the Alluxa Acquisition Subsidiary during each of three exercise periods in 2024, 2025 and 2026, with any amount not sold or purchased in a prior exercise period being carried forward to the subsequent exercise periods. In January 2024, we agreed with the Alluxa Executives to change the terms of the Put and Call Rights so that all outstanding equity interests could be acquired in 2024. In February of 2024, we acquired all outstanding equity interests in the Alluxa Acquisition Subsidiary for $17.9 million, which was the minimum fixed price set in the Alluxa LLC Agreement. As this transaction was for the acquisition of all remaining shares of a consolidated subsidiary with no change in control, it was recorded within shareholder's equity and as a financing cash flow in the Consolidated Statement of Cash Flows. Enpro is the sole owner of Alluxa.

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- Definition The entire disclosure for business combinations, including leverage buyout transactions (as applicable), and divestitures. This may include a description of a business combination or divestiture (or series of individually immaterial business combinations or divestitures) completed during the period, including background, timing, and assets and liabilities recognized and reclassified or sold. This element does not include fixed asset sales and plant closings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/205-20/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/805/tableOfContent + Details
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