ADTRAN Holdings, Inc.

Historical 13F Holders

Symbol
ADTN
CUSIP
00486H105
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 00486H105 since 12/18/2024, largest first.

Filer % of Class Filed
Vanguard Portfolio Management LLC 13G 6.0% 4/28/2026
Event 3/31/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (5)
EGORA Ventures AG 13G/A 4.97% 3/18/2026
Event 2/2/2026
DnB Asset Management AS 13G/A 4.4% 4/23/2025
Event 3/31/2025
William Blair Investment Management, LLC 13G/A 4.2% 5/9/2025
Event 3/31/2025
Divisar Capital Management LLC 13G/A
4.0% 11/14/2025
Event 9/30/2025
Vanguard Group Inc 13G/A 0% 3/26/2026
Event 3/13/2026

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 3 4.33 k $29.6 k
2026 Q2 259 87.4 M $1.28 B
2026 Q1 236 79.1 M $994 M
2025 Q4 220 70.4 M $612 M
2025 Q3 231 68.3 M $666 M
2025 Q2 205 59.5 M $534 M
2025 Q1 218 58.8 M $513 M
2024 Q4 167 61.7 M $514 M
2024 Q3 163 59.2 M $350 M
2024 Q2 167 62.3 M $327 M
2024 Q1 181 66.6 M $363 M
2023 Q4 182 64.9 M $476 M
2023 Q3 176 63.6 M $522 M
2023 Q2 180 64.8 M $679 M
2023 Q1 180 63.5 M $1.01 B
2022 Q4 193 66.4 M $1.25 B
2022 Q3 194 61.8 M $1.21 B
2022 Q2 14 1.38 M $24.3 M
2022 Q1 1 521 $9.61 k
2021 Q4 1 508 $11.6 k
2021 Q3 1 497 $9.32 k
2021 Q2 1 497 $10.3 k
2021 Q1 1 497 $8.29 k
2020 Q4 1 497 $7.34 k
2020 Q3 1 497 $5.10 k
2020 Q2 1 497 $5.43 k
2019 Q3 1 1.12 k $12.8 k
2019 Q2 1 1.12 k $17.1 k
2019 Q1 1 1.12 k $15.4 k
2018 Q3 1 841 $14.8 k
2018 Q2 1 448 $6.65 k
2018 Q1 1 1.13 k $17.5 k
2017 Q4 1 1.13 k $21.8 k
2017 Q3 1 1.13 k $27.1 k
2017 Q2 1 1.13 k $23.3 k
2017 Q1 1 1.13 k $23.4 k
2016 Q4 2 1.15 k $25.7 k
2016 Q3 2 1.15 k $22.0 k
2016 Q2 2 1.15 k $21.5 k
2016 Q1 2 1.15 k $23.3 k
2015 Q4 1 24.0 $413.00
2015 Q3 1 24.0 $350.00
2015 Q2 1 24.0 $390.00
2015 Q1 1 24.0 $448.00