v3.26.1
Goodwill and Other Intangible Assets (Tables)
3 Months Ended
Mar. 31, 2026
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill The change in the carrying value of Goodwill by segment is as follows:
Amount
Automotive Products
Beginning balance as of January 1, 2026$309,709,522 
Period activity— 
Balance as of March 31, 2026 (1)$309,709,522 
Premium Audio Products
Beginning balance as of January 1, 2026$12,713,758 
Acquisitions (including measurement period adjustments) (see Note 16)
3,765,220 
Balance as of March 31, 2026 (1)$16,478,978 
Other
Beginning balance as of January 1, 2026$34,788,639 
Foreign currency adjustment(52,832)
Balance as of March 31, 2026
$34,735,807 
Gross carrying value at March 31, 2026$38,400,511 
Accumulated impairment charges(3,664,704)
Net carrying value at March 31, 2026$34,735,807 
Total Goodwill, net$360,924,307 
(1) The gross carrying values of goodwill in the Automotive Products and Premium Audio Products segments are equal to their net carrying values as there have been no impairments of goodwill within these segments.
Schedule of Intangible Assets
The Company's patents and intangible assets and related change in carrying values are set forth in the tables below, including the Vaporsens In-Process R & D, which has been previously disclosed.
As of March 31, 2026:
Other Intangible AssetsGrossAccumulated AmortizationNetAssumed Useful Life
Gentex Patents$39,939,006 $(28,955,094)$10,983,912 Various
Other Intangible Assets
HomeLink® Trade Names and Trademarks
$52,000,000 $— $52,000,000 Indefinite
HomeLink® Technology
180,000,000 (180,000,000)— 12 years
Existing Customer Platforms43,000,000 (43,000,000)— 10 years
Exclusive Licensing Agreement96,000,000 — 96,000,000 Indefinite
BioCenturion LLC ("BioCenturion") Trade Names and Trademarks640,000 (90,667)549,333 10 years
BioCenturion Developed Technology2,300,000 (271,528)2,028,472 12 years
eSight Developed Technology12,000,000 (2,416,667)9,583,333 12 years
eSight Trade Names and Trademarks870,000 (175,208)694,792 12 years
BioConnect Trade Names and Trademarks861,454 (56,169)805,285 12 years
BioConnect Developed Technology5,392,068 (351,578)5,040,490 12 years
BioConnect Customer Relationships1,722,909 (112,338)1,610,571 10 years
Vaporsens In-Process R&D3,000,000 — 3,000,000 Indefinite
Argil Developed Technology6,278,132 (261,589)6,016,543 12 years
Air-Craftglass Developed Technology1,507,778 (157,060)1,350,718 12 years
Guardian Trade Names1,300,000 (189,583)1,110,417 12 years
Guardian Developed Technology6,800,000 (991,667)5,808,333 12 years
Total Other Intangible Assets$413,672,341 $(228,074,054)$185,598,287 
Total Patents & Other Intangible Assets$453,611,347 $(257,029,148)$196,582,199 
As of December 31, 2025:
Other Intangible AssetsGrossAccumulated AmortizationNetAssumed Useful Life
Gentex Patents$39,769,415 $(28,758,462)$11,010,953 Various
Other Intangible Assets
HomeLink® Trade Names and Trademarks
$52,000,000 $— $52,000,000 Indefinite
HomeLink® Technology
180,000,000 (180,000,000)— 12 years
Existing Customer Platforms43,000,000 (43,000,000)— 10 years
Exclusive Licensing Agreement96,000,000 — 96,000,000 Indefinite
BioCenturion Trade Names and Trademarks640,000 (74,667)565,333 10 years
BioCenturion Developed Technology2,300,000 (223,611)2,076,389 12 years
eSight Developed Technology12,000,000 (2,166,667)9,833,333 12 years
eSight Trade Names and Trademarks870,000 (157,083)712,917 12 years
BioConnect Trade Names and Trademarks874,320 (32,254)842,066 12 years
BioConnect Developed Technology5,465,061 (241,908)5,223,153 12 years
BioConnect Customer Relationships1,748,640 (77,411)1,671,229 10 years
Vaporsens In-Process R&D5,800,000 — 5,800,000 Indefinite
Argil Developed Technology6,278,132 (130,794)6,147,338 12 years
Air-Craftglass Developed Technology1,507,778 (125,649)1,382,129 12 years
Guardian Trade Names1,300,000 (162,500)1,137,500 12 years
Guardian Developed Technology6,800,000 (850,000)5,950,000 12 years
Total Other Intangible Assets$416,583,931 $(227,242,544)$189,341,387 
Total Patents & Other Intangible Assets$456,353,346 $(256,001,006)$200,352,340