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OBERWEIS ASSET MANAGEMENT INC/: SPY position timeline

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

OBERWEIS ASSET MANAGEMENT INC/ held 2,378 SPY 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 2,378 shares
    Change vs previous 13F +4 shares

    0.04% of the 13F portfolio, value $1,775,787.

    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 2,374 shares
    Change vs previous 13F +319 shares

    0.05% of the 13F portfolio, value $1,544,072.

    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 2,055 shares
    Change vs previous 13F -118 shares

    0.05% of the 13F portfolio, value $1,401,314.

    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 2,173 shares
    Change vs previous 13F +5 shares

    0.06% of the 13F portfolio, value $1,447,383.

    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 2,168 shares
    Change vs previous 13F +5 shares

    0.06% of the 13F portfolio, value $1,339,642.

    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 2,163 shares
    Change vs previous 13F -1,325 shares

    0.06% of the 13F portfolio, value $1,210,152.

    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 3,488 shares
    Change vs previous 13F -91 shares

    0.1% of the 13F portfolio, value $2,044,158.

    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 3,579 shares
    Change vs previous 13F not available

    0.11% of the 13F portfolio, value $2,053,555.

    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).