Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000950170-25-082688
Filing Date
2025-06-06
Accepted
2025-06-06 07:10:03
Documents
3

Document Format Files

Seq Description Document Type Size
1 DEFA14A adtn-20250604.htm DEFA14A 25455
2 GRAPHIC img230350075_0.jpg GRAPHIC 86963
3 GRAPHIC img230350075_1.jpg GRAPHIC 62244
  Complete submission text file 0000950170-25-082688.txt   230905
Mailing Address 901 EXPLORER BLVD HUNTSVILLE AL 35806
Business Address 901 EXPLORER BLVD HUNTSVILLE AL 35806 256-963-8220
ADTRAN Holdings, Inc. (Filer) CIK: 0000926282 (see all company filings)

EIN.: 872164282 | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-41446 | Film No.: 251028877
SIC: 3661 Telephone & Telegraph Apparatus
(CF Office: 04 Manufacturing)