NASDAQ: ADTN
Adtran Holdings Inc Stock Ownership - Who owns Adtran Holdings?

Insider buying vs selling

Have Adtran Holdings Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
James Denson Wilson Jr.Chief Revenue Officer2026-05-209,332$14.72
$137.37kSell
Christoph GlingenerChief Technology Officer2026-05-0822,277$12.17
$271.11kBuy
Christoph GlingenerChief Technology Officer2026-05-0822,277$15.00
$334.16kSell
Christoph GlingenerChief Technology Officer2026-05-0784,895$15.06
$1.28MSell
Christoph GlingenerChief Technology Officer2026-05-0741,220$7.01
$288.95kBuy
Christoph GlingenerChief Technology Officer2026-05-0741,220$14.73
$607.17kSell
Christoph GlingenerChief Technology Officer2026-05-0784,895$12.17
$1.03MBuy
Timothy P. SantoSVP of Finance CFO2026-03-191,501$11.90
$17.86kSell
Hourigan Rice JacquelineDirector2026-03-0414,406$10.29
$148.24kSell
James Denson Wilson Jr.Chief Revenue Officer2026-01-261,309$9.24
$12.10kSell

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Net Insider Buy/Sell (L12M) Ownership

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ADTN Shareholders

What type of owners hold Adtran Holdings Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Mark C. Smith9.87%7,997,600$114.05MInsider
Blackrock Inc9.68%7,840,254$111.80MInstitution
Linda Jones Smith7.50%6,075,082$86.63MInsider
Vanguard Portfolio Management LLC5.89%4,771,452$68.04MInstitution
Mark Clay Smith5.86%4,744,091$67.65MInsider
Vanguard Capital Management LLC4.23%3,426,230$48.86MInstitution
Royce Associates LP3.86%3,127,403$44.60MInstitution
Dnb Asset Management As3.86%3,123,679$44.54MInstitution
State Street Corp2.90%2,350,737$33.52MInstitution
William Blair Investment Management LLC2.46%1,989,530$28.37MInstitution

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ADTN vs Communication Equipment Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ADTN78.26%21.74%Net SellingNet Selling
ITRN61.67%27.91%
GILT40.83%0.06%Net SellingNet Selling
HLIT84.82%5.73%Net SellingNet Selling
TSAT99.68%0.32%

Adtran Holdings Stock Ownership FAQ

Who owns Adtran Holdings?

Adtran Holdings (NASDAQ: ADTN) is owned by 96.94% institutional shareholders, 26.93% Adtran Holdings insiders, and 0.00% retail investors. Mark C. Smith is the largest individual Adtran Holdings shareholder, owning 8.00M shares representing 9.87% of the company. Mark C. Smith's Adtran Holdings shares are currently valued at $119.56M.

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