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Granahan Investment Management, LLC: ACHR position timeline

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

Granahan Investment Management, LLC held 226,407 ACHR 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 226,407 shares
    Change vs previous 13F -1,254,339 shares

    0.04% of the 13F portfolio, value $1,070,905.

    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 1,480,746 shares
    Change vs previous 13F -232,424 shares

    0.37% of the 13F portfolio, value $7,655,457.

    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 1,713,170 shares
    Change vs previous 13F -1,226,930 shares

    0.55% of the 13F portfolio, value $12,883,038.

    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 2,940,100 shares
    Change vs previous 13F -302,520 shares

    1.15% of the 13F portfolio, value $28,166,158.

    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 3,242,620 shares
    Change vs previous 13F +442,443 shares

    1.43% of the 13F portfolio, value $35,182,427.

    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 2,800,177 shares
    Change vs previous 13F +676,013 shares

    0.99% of the 13F portfolio, value $19,909,258.

    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).

  7. period ended2024-12-31
    13F 2,124,164 shares
    Change vs previous 13F not available

    0.86% of the 13F portfolio, value $20,710,599.

    13F-HR 0001398344-25-002765 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).