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Disclosery

Mattson Financial Services, LLC: COST position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Mattson Financial Services, LLC on COST, newest first. How the timeline and the estimate are built.

Mattson Financial Services, LLC held 2,217 COST shares at 2026-06-30 per its 13F-HR filed 2026-08-04.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,217 shares
    Change vs previous 13F +174 shares

    0.44% of the 13F portfolio, value $2,096,364.

    13F-HR 0002034595-26-000003 filed by Mattson Financial Services, 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 2,043 shares
    Change vs previous 13F -310 shares

    0.49% of the 13F portfolio, value $2,035,743.

    13F-HR 0002034595-26-000002 filed by Mattson Financial Services, 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 2,353 shares
    Change vs previous 13F +25 shares

    0.47% of the 13F portfolio, value $2,029,116.

    13F-HR 0002034595-26-000001 filed by Mattson Financial Services, 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 2,328 shares
    Change vs previous 13F +78 shares

    0.52% of the 13F portfolio, value $2,154,898.

    13F-HR 0002034595-25-000007 filed by Mattson Financial Services, 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 2,250 shares
    Change vs previous 13F -33 shares

    0.6% of the 13F portfolio, value $2,227,397.

    13F-HR 0002034595-25-000003 filed by Mattson Financial Services, 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 2,283 shares
    Change vs previous 13F +7 shares

    0.65% of the 13F portfolio, value $2,159,245.

    13F-HR 0002034595-25-000002 filed by Mattson Financial Services, 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 2,276 shares
    Change vs previous 13F -355 shares

    0.64% of the 13F portfolio, value $2,017,744.

    13F-HR 0002034595-25-000001 filed by Mattson Financial Services, 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 2,631 shares
    Change vs previous 13F not available

    0.8% of the 13F portfolio, value $2,236,347.

    13F-HR 0002034595-24-000002 filed by Mattson Financial Services, LLC
    Filed (acceptance time not in the bulk data set), ingested

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