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Driehaus Capital Management LLC: ONTO position timeline

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

Driehaus Capital Management LLC held 354,650 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 354,650 shares
    Change vs previous 13F +34,116 shares

    0.78% of the 13F portfolio, value $134,217,293.

    13F-HR 0000938206-26-000048 filed by Driehaus Capital 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 320,534 shares
    Change vs previous 13F -28,480 shares

    0.48% of the 13F portfolio, value $65,731,907.

    13F-HR 0000938206-26-000031 filed by Driehaus Capital 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 349,014 shares
    Change vs previous 13F +248,544 shares

    0.37% of the 13F portfolio, value $55,095,350.

    13F-HR 0000938206-26-000018 filed by Driehaus Capital 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 100,470 shares
    Change vs previous 13F +100,470 shares

    0.09% of the 13F portfolio, value $12,982,733.

    13F-HR 0000938206-25-000056 filed by Driehaus Capital 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 ended2024-12-31
    13F 0 shares
    Change vs previous 13F -97,311 shares

    13F-HR 0000938206-25-000009 filed by Driehaus Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  6. period ended2024-09-30
    13F 97,311 shares
    Change vs previous 13F not available

    0.17% of the 13F portfolio, value $20,197,871.

    13F-HR 0000938206-24-000037 filed by Driehaus Capital Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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