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Who owns Adtran Holdings (ADTN) stock

231 funds reported Adtran Holdings (ADTN) shares in their latest 13F filings, worth $1.1B in all. The largest holder is BlackRock ($109M). Last quarter 127 funds added to their stakes and 95 cut them.

Largest holders of ADTN (13F)Largest holders of ADTN (13F)BlackRock$109MVanguard Portfolio Management LLC$71.4MVanguard Group$71.2MVanguard Capital Management LLC$48.8MState Street$42.9MRoyce & Associates LP$41.3MUBS Group AG$40.9MTwo Sigma Investments, LP$40.3MMillennium Management LLC$37.8MDnB Asset Management AS$36.4M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock7,836,196$109Mdecrease2026-06-30
Vanguard Portfolio Management LLC5,135,649$71.4Mincrease2026-06-30
Vanguard Group8,188,496$71.2Mdecrease2025-12-31
Vanguard Capital Management LLC3,510,271$48.8Mincrease2026-06-30
State Street3,082,794$42.9Mincrease2026-06-30
Royce & Associates LP2,972,917$41.3Mdecrease2026-06-30
UBS Group AG2,940,724$40.9Mincrease2026-06-30
Two Sigma Investments, LP2,896,353$40.3Mincrease2026-06-30
Millennium Management LLC2,722,820$37.8Mincrease2026-06-30
DnB Asset Management AS2,619,389$36.4Mdecrease2026-06-30
First Eagle Investment Management, LLC2,497,014$34.7Mincrease2026-06-30
Geode Capital Management, LLC1,958,052$27.2Mincrease2026-06-30
Morgan Stanley1,792,752$24.9Mdecrease2026-06-30
Renaissance Technologies LLC1,773,740$24.7Mincrease2026-06-30
Boston Partners1,651,038$22.7Mincrease2026-06-30

Adtran Holdings' latest quarter

Adtran Holdings, Q3 2026: revenue $281M (+0.6% year over year), operating margin -0.3%, net loss $7.1M, operating cash flow −$24.5M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most ADTN stock?

By the latest 13F filings: BlackRock ($109M); Vanguard Portfolio Management LLC ($71.4M); Vanguard Group ($71.2M); Vanguard Capital Management LLC ($48.8M); State Street ($42.9M).

What is the short interest in ADTN?

12,549,794 shares were sold short at the 2026-10-15 settlement, 5.79% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.