Skip to content
Disclosery

Granahan Investment Management, LLC: ADTN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Granahan Investment Management, LLC on ADTN, newest first. How the timeline and the estimate are built.

Granahan Investment Management, LLC held 44,758 ADTN shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 44,758 shares
    Change vs previous 13F +13,976 shares

    0.02% of the 13F portfolio, value $622,136.

    13F-HR 0001398344-26-014483 filed by Granahan Investment Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2026-03-31
    13F 30,782 shares
    Change vs previous 13F -24,058 shares

    0.02% of the 13F portfolio, value $387,238.

    13F-HR 0001398344-26-009220 filed by Granahan Investment Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 54,840 shares
    Change vs previous 13F -527,650 shares

    0.02% of the 13F portfolio, value $476,560.

    13F-HR 0001398344-26-003202 filed by Granahan Investment Management, LLC
    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 582,490 shares
    Change vs previous 13F +382,170 shares

    0.22% of the 13F portfolio, value $5,463,756.

    13F-HR 0001398344-25-020897 filed by Granahan Investment Management, LLC
    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 200,320 shares
    Change vs previous 13F +164,227 shares

    0.07% of the 13F portfolio, value $1,796,870.

    13F-HR 0001398344-25-015412 filed by Granahan Investment Management, LLC
    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 36,093 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $314,731.

    13F-HR 0001398344-25-009461 filed by Granahan Investment Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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