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Disclosery

OBERWEIS ASSET MANAGEMENT INC/: VISN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of OBERWEIS ASSET MANAGEMENT INC/ on VISN, newest first. How the timeline and the estimate are built.

OBERWEIS ASSET MANAGEMENT INC/ held 1,298,612 VISN 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 1,298,612 shares
    Change vs previous 13F +206,600 shares

    0.34% of the 13F portfolio, value $16,596,261.

    13F-HR 0001213900-26-089777 filed by OBERWEIS ASSET 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 1,092,012 shares
    Change vs previous 13F +131,100 shares

    0.59% of the 13F portfolio, value $19,874,618.

    13F-HR 0001213900-26-057307 filed by OBERWEIS ASSET 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 960,912 shares
    Change vs previous 13F +170,000 shares

    0.64% of the 13F portfolio, value $17,421,335.

    13F-HR 0001213900-26-017101 filed by OBERWEIS ASSET 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 790,912 shares
    Change vs previous 13F not available

    0.47% of the 13F portfolio, value $12,243,318.

    13F-HR 0001213900-25-111225 filed by OBERWEIS ASSET MANAGEMENT INC/
    Filed (acceptance time not in the bulk data set), ingested

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