Goodwill and Other Intangible Assets 
Goodwill
The changes in the carrying amount of goodwill by reportable segment follows:
(in millions)CCMCWTTotal
Balance as of December 31, 2023$934.7 $267.8 $1,202.5 
Goodwill acquired during year (1)
141.0 145.0 286.0 
Currency translation and other(2.6)(7.9)(10.5)
Balance as of December 31, 2024$1,073.1 $404.9 $1,478.0 
Goodwill acquired during year (1)
— 69.6 69.6 
Currency translation and other5.8 (14.5)(8.7)
Balance as of December 31, 2025$1,078.9 $460.0 $1,538.9 
(1)Refer to Note 3 for further information on goodwill resulting from recent acquisitions.
Other Intangible Assets
A summary of the Company's other intangible assets follows:
December 31, 2025December 31, 2024
(in millions)Acquired CostAccumulated AmortizationNet Book ValueAcquired CostAccumulated AmortizationNet Book Value
Customer relationships$1,479.6 $(483.6)$996.0 $1,456.0 $(380.5)$1,075.5 
Indefinite-lived trade names254.4 — 254.4 252.0 — 252.0 
Technology
203.3 (116.6)86.7 185.6 (103.4)82.2 
Definite-lived trade names117.6 (43.1)74.5 117.0 (37.0)80.0 
Other44.3 (30.4)13.9 37.8 (22.6)15.2 
Other intangible assets$2,099.2 $(673.7)$1,425.5 $2,048.4 $(543.5)$1,504.9 
The remaining weighted-average amortization period of intangible assets subject to amortization as of December 31, 2025, follows (in years):
Customer relationships12.3
Technology7.3
Definite-lived trade names14.6
Other1.4
Total assets subject to amortization11.9
Intangible assets subject to amortization as of December 31, 2025, will be amortized as follows:
(in millions)20262027202820292030Thereafter
Estimated future amortization expense
$123.5 $109.6 $105.9 $99.1 $90.7 $642.3 
The net carrying values of the Company’s other intangible assets by reportable segment follows:
(in millions)December 31,
2025
December 31,
2024
Carlisle Construction Materials$314.9 $343.0 
Carlisle Weatherproofing Technologies 1,110.2 1,159.7 
Corporate0.4 2.2 
Total$1,425.5 $1,504.9 

Historical Timeline

Fiscal YearFiled
2025Feb 13, 2026Showing above
2024Feb 14, 2025
2023Feb 16, 2024
2022Feb 16, 2023
2021Feb 17, 2022
2020Feb 11, 2021
2019Feb 10, 2020
2018Feb 14, 2019
2017Feb 16, 2018
2016Feb 13, 2017
2015Feb 8, 2016

About Goodwill & Intangibles Disclosures

Goodwill and intangible asset disclosures reveal the premium paid in acquisitions and how management assesses whether that premium retains its value. Since goodwill is no longer amortized under US GAAP, the annual impairment test is the only mechanism that adjusts carrying values downward — making the assumptions behind that test critically important for investors.

Key signals: a history of goodwill impairments suggests management consistently overpays for acquisitions. Watch the gap between reporting unit fair value and carrying amount — when fair value exceeds carrying amount by less than 10-20%, a small decline in business performance could trigger a write-down. For finite-lived intangibles, examine useful life assumptions across customer relationships, technology, and trade names; aggressive estimates inflate near-term earnings. Compare total intangibles-to-total-assets ratios against peers to assess acquisition dependency. Rising goodwill as a percentage of equity can signal balance sheet fragility.