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OBERWEIS ASSET MANAGEMENT INC/: AORT position timeline

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

OBERWEIS ASSET MANAGEMENT INC/ held 0 AORT 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 0 shares
    Change vs previous 13F -221,122 shares

    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).

    Exited: the 13F for this period no longer lists the position.

  2. period ended2026-03-31
    13F 221,122 shares
    Change vs previous 13F +4,062 shares

    0.24% of the 13F portfolio, value $8,097,488.

    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 217,060 shares
    Change vs previous 13F +5,260 shares

    0.36% of the 13F portfolio, value $9,900,107.

    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 211,800 shares
    Change vs previous 13F 0 shares

    0.34% of the 13F portfolio, value $8,967,612.

    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 211,800 shares
    Change vs previous 13F +21,400 shares

    0.29% of the 13F portfolio, value $6,586,980.

    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 190,400 shares
    Change vs previous 13F -122,500 shares

    0.23% of the 13F portfolio, value $4,680,032.

    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 312,900 shares
    Change vs previous 13F +30,500 shares

    0.42% of the 13F portfolio, value $8,945,811.

    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 282,400 shares
    Change vs previous 13F not available

    0.39% of the 13F portfolio, value $7,517,488.

    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).