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South Street Advisors LLC: ONTO position timeline

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

South Street Advisors LLC held 88,920 ONTO shares at 2026-06-30 per its 13F-HR filed 2026-08-05.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 88,920 shares
    Change vs previous 13F -2,419 shares

    4.38% of the 13F portfolio, value $33,651,774.

    13F-HR 0001172661-26-003079 filed by South Street Advisors 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 91,339 shares
    Change vs previous 13F +5,974 shares

    2.71% of the 13F portfolio, value $18,730,889.

    13F-HR 0001172661-26-001789 filed by South Street Advisors 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 85,365 shares
    Change vs previous 13F -5,700 shares

    1.89% of the 13F portfolio, value $13,475,719.

    13F-HR 0001172661-26-000551 filed by South Street Advisors 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 91,065 shares
    Change vs previous 13F +4,584 shares

    1.54% of the 13F portfolio, value $11,767,419.

    13F-HR 0001172661-25-004820 filed by South Street Advisors 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 86,481 shares
    Change vs previous 13F -3,217 shares

    1.29% of the 13F portfolio, value $8,728,527.

    13F-HR 0001172661-25-003333 filed by South Street Advisors 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 89,698 shares
    Change vs previous 13F +406 shares

    1.78% of the 13F portfolio, value $10,883,955.

    13F-HR 0001172661-25-002217 filed by South Street Advisors 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 89,292 shares
    Change vs previous 13F +742 shares

    2.28% of the 13F portfolio, value $14,882,298.

    13F-HR 0001172661-25-000620 filed by South Street Advisors 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 88,550 shares
    Change vs previous 13F not available

    2.79% of the 13F portfolio, value $18,379,438.

    13F-HR 0001172661-24-004496 filed by South Street Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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