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Disclosery

BROWN ADVISORY INC: OSIS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BROWN ADVISORY INC on OSIS, newest first. How the timeline and the estimate are built.

BROWN ADVISORY INC held 86,852 OSIS 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 86,852 shares
    Change vs previous 13F +8,598 shares

    0.03% of the 13F portfolio, value $18,994,760.

    13F-HR 0001345929-26-000038 filed by BROWN ADVISORY INC
    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 78,254 shares
    Change vs previous 13F -73,351 shares

    0.03% of the 13F portfolio, value $20,777,166.

    13F-HR 0001345929-26-000028 filed by BROWN ADVISORY INC
    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 151,605 shares
    Change vs previous 13F -58,704 shares

    0.05% of the 13F portfolio, value $38,668,316.

    13F-HR 0001345929-26-000018 filed by BROWN ADVISORY INC
    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 210,309 shares
    Change vs previous 13F -6,462 shares

    0.07% of the 13F portfolio, value $52,417,320.

    13F-HR 0001345929-25-000002 filed by BROWN ADVISORY INC
    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 216,771 shares
    Change vs previous 13F -62,019 shares

    0.06% of the 13F portfolio, value $48,743,041.

    13F-HR 0001085146-25-005034 filed by BROWN ADVISORY INC
    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 278,790 shares
    Change vs previous 13F +6,332 shares

    0.08% of the 13F portfolio, value $54,180,048.

    13F-HR 0001085146-25-002448 filed by BROWN ADVISORY INC
    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 272,458 shares
    Change vs previous 13F not available

    0.06% of the 13F portfolio, value $45,617,643.

    13F-HR 0001085146-25-001491 filed by BROWN ADVISORY INC
    Filed (acceptance time not in the bulk data set), ingested

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