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OBERWEIS ASSET MANAGEMENT INC/: ZETA position timeline

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

OBERWEIS ASSET MANAGEMENT INC/ held 819,770 ZETA 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 819,770 shares
    Change vs previous 13F -51,290 shares

    0.33% of the 13F portfolio, value $16,133,074.

    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 871,060 shares
    Change vs previous 13F +104,040 shares

    0.41% of the 13F portfolio, value $13,867,275.

    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 767,020 shares
    Change vs previous 13F +5,820 shares

    0.57% of the 13F portfolio, value $15,608,857.

    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 761,200 shares
    Change vs previous 13F -375,200 shares

    0.58% of the 13F portfolio, value $15,125,044.

    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).

  5. period ended2025-06-30
    13F 1,136,400 shares
    Change vs previous 13F -706,840 shares

    0.77% of the 13F portfolio, value $17,602,836.

    13F-HR 0001213900-25-076460 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).

  6. period ended2025-03-31
    13F 1,843,240 shares
    Change vs previous 13F +3,200 shares

    1.25% of the 13F portfolio, value $24,994,334.

    13F-HR 0001213900-25-043859 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).

  7. period ended2024-12-31
    13F 1,840,040 shares
    Change vs previous 13F +235,910 shares

    1.56% of the 13F portfolio, value $33,102,320.

    13F-HR 0001213900-25-013939 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).

  8. period ended2024-09-30
    13F 1,604,130 shares
    Change vs previous 13F not available

    2.45% of the 13F portfolio, value $47,851,198.

    13F-HR 0001213900-24-098012 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).