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CONGRESS ASSET MANAGEMENT CO: ATEC position timeline

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

CONGRESS ASSET MANAGEMENT CO held 532,069 ATEC shares at 2026-09-30 per its 13F-HR filed 2026-10-06.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 532,069 shares
    Change vs previous 13F +91,431 shares

    0.04% of the 13F portfolio, value $5,490,952.

    13F-HR 0000897378-26-000015 filed by CONGRESS ASSET MANAGEMENT CO
    Accepted , ingested

  2. period ended2026-06-30
    13F 440,638 shares
    Change vs previous 13F +4,923 shares

    0.02% of the 13F portfolio, value $3,811,519.

    13F-HR 0000897378-26-000010 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 435,715 shares
    Change vs previous 13F +62,152 shares

    0.03% of the 13F portfolio, value $4,740,579.

    13F-HR 0000897378-26-000005 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 373,563 shares
    Change vs previous 13F -10,771 shares

    0.06% of the 13F portfolio, value $7,859,766.

    13F-HR 0000897378-26-000002 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 384,334 shares
    Change vs previous 13F -3,801 shares

    0.04% of the 13F portfolio, value $5,588,216.

    13F-HR 0000897378-25-000016 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2025-06-30
    13F 388,135 shares
    Change vs previous 13F -44,777 shares

    0.03% of the 13F portfolio, value $4,308,299.

    13F-HR 0000897378-25-000005 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2025-03-31
    13F 432,912 shares
    Change vs previous 13F -2,054 shares

    0.03% of the 13F portfolio, value $4,389,728.

    13F-HR 0000897378-25-000003 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  8. period ended2024-12-31
    13F 434,966 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $3,992,988.

    13F-HR 0000897378-25-000001 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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