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VANGUARD GROUP INC: ADTN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of VANGUARD GROUP INC on ADTN, newest first. How the timeline and the estimate are built.

VANGUARD GROUP INC held 9,286,741 ADTN shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 9,286,741 shares
    Change vs previous 13F +439,773 shares

    <0.01% of the 13F portfolio, value $129,085,700.

    13F-HR 0002100121-26-001018 filed by VANGUARD PORTFOLIO MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD FIDUCIARY TRUST CO: 540,877 shares
    • Vanguard Investments Australia, Ltd.: 17,171 shares
    • VANGUARD ASSET MANAGEMENT, Ltd: 46,550 shares
    • Vanguard Global Advisers, LLC: 36,223 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 3,510,271 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 5,135,649 shares

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F/A 8,846,968 shares
    Change vs previous 13F +658,472 shares

    <0.01% of the 13F portfolio, value $111,294,856.

    13F-HR 0002100121-26-000861 filed by VANGUARD PORTFOLIO MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD FIDUCIARY TRUST CO: 522,530 shares
    • Vanguard Investments Australia, Ltd.: 17,171 shares
    • VANGUARD ASSET MANAGEMENT, Ltd: 46,550 shares
    • Vanguard Global Advisers, LLC: 63,035 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 3,426,230 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 4,771,452 shares

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 8,188,496 shares
    Change vs previous 13F -194,809 shares

    <0.01% of the 13F portfolio, value $71,158,031.

    13F-HR 0000102909-26-000031 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 8,383,305 shares
    Change vs previous 13F +217,148 shares

    <0.01% of the 13F portfolio, value $78,635,401.

    13F-HR 0000102909-25-000353 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 8,166,157 shares
    Change vs previous 13F +1,072,226 shares

    <0.01% of the 13F portfolio, value $73,250,428.

    13F-HR 0001752724-25-185843 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F 7,093,931 shares
    Change vs previous 13F +501,512 shares

    <0.01% of the 13F portfolio, value $61,859,078.

    13F-HR 0001752724-25-099331 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-12-31
    13F 6,592,419 shares
    Change vs previous 13F +41,478 shares

    <0.01% of the 13F portfolio, value $54,914,850.

    13F-HR 0001752724-25-022205 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  8. period ended2024-09-30
    13F 6,550,941 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $38,847,081.

    13F-HR 0001752724-24-248565 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).