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FIRST WILSHIRE SECURITIES MANAGEMENT INC: ROCK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of FIRST WILSHIRE SECURITIES MANAGEMENT INC on ROCK, newest first. How the timeline and the estimate are built.

FIRST WILSHIRE SECURITIES MANAGEMENT INC held 268,773 ROCK 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 268,773 shares
    Change vs previous 13F -231,150 shares

    2.5% of the 13F portfolio, value $12,121,662.

    13F-HR 0000732847-26-000014 filed by FIRST WILSHIRE SECURITIES MANAGEMENT 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 499,923 shares
    Change vs previous 13F +370,985 shares

    4.49% of the 13F portfolio, value $19,931,930.

    13F-HR 0000732847-26-000007 filed by FIRST WILSHIRE SECURITIES MANAGEMENT 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 128,938 shares
    Change vs previous 13F -46,221 shares

    1.6% of the 13F portfolio, value $6,374,695.

    13F-HR 0000732847-26-000001 filed by FIRST WILSHIRE SECURITIES MANAGEMENT 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 175,159 shares
    Change vs previous 13F not available

    2.93% of the 13F portfolio, value $10,999,985.

    13F-HR 0000732847-25-000017 filed by FIRST WILSHIRE SECURITIES MANAGEMENT INC
    Filed (acceptance time not in the bulk data set), ingested

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