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Granahan Investment Management, LLC: ONTO position timeline

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

Granahan Investment Management, LLC held 141,568 ONTO 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 141,568 shares
    Change vs previous 13F -57,126 shares

    1.91% of the 13F portfolio, value $53,576,410.

    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 198,694 shares
    Change vs previous 13F +2,052 shares

    1.97% of the 13F portfolio, value $40,746,179.

    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 196,642 shares
    Change vs previous 13F +122,520 shares

    1.33% of the 13F portfolio, value $31,041,906.

    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 74,122 shares
    Change vs previous 13F +40,364 shares

    0.39% of the 13F portfolio, value $9,578,045.

    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 33,758 shares
    Change vs previous 13F -23,343 shares

    0.14% of the 13F portfolio, value $3,407,195.

    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 57,101 shares
    Change vs previous 13F +30,397 shares

    0.35% of the 13F portfolio, value $6,928,635.

    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 26,704 shares
    Change vs previous 13F +2,261 shares

    0.19% of the 13F portfolio, value $4,450,756.

    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).

  8. period ended2024-09-30
    13F 24,443 shares
    Change vs previous 13F not available

    0.2% of the 13F portfolio, value $5,073,389.

    13F-HR 0001398344-24-020730 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).