ADTNADTRAN Holdings, Inc.

$7.91

Who owns ADTN

225 institutions reported holding ADTN for 2026Q1, together 98% of the company, more than the 212 a quarter earlier.

225

Institutions reporting a position · as of 2026Q1 · up from 212 the quarter before

Shares held by institutions
78.5M

Shares held by institutions · 98% of the company · long US equity positions only, as reported on Form 13F

Reported value
$987M

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
31%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
52
New positions
42
Positions exited
35
Added to
87
Reduced
60
Top 10 holdersof the company
43%
Institutional ownership by quarter, 2013Q2 to 2026Q1
QuarterFilersSharesReported value
2026Q122578.5M$987M
2025Q421270.4M$612M
2025Q321867.5M$659M
2025Q219259.5M$534M
2025Q120458.7M$512M
2024Q415861.6M$513M
2024Q315259.1M$350M
2024Q215760.0M$315M
2024Q116963.7M$347M
2023Q416662.6M$460M
2023Q316163.1M$520M
2023Q216364.4M$675M
2023Q116962.6M$993M
2022Q417663.0M$1.18B
2022Q318460.8M$1.19B
2022Q216248.1M$844M
Largest reported holders, 2026Q1
HolderShares% of companyValue
VANGUARD GROUP INC8.8M11%$111M
BlackRock Inc.7.8M9.8%$99M
ROYCE & ASSOCIATES LP3.1M3.9%$39M
DNB Asset Management AS3.1M3.9%$39M
STATE STREET CORP2.4M2.9%$30M
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC2.0M2.5%$25M
MILLENNIUM MANAGEMENT LLC1.9M2.4%$24M
MORGAN STANLEY1.8M2.3%$23M
GEODE CAPITAL MANAGEMENT LLC1.8M2.3%$23M
Divisar Capital Management LLC1.8M2.2%$22M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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