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Cortina Asset Management, LLC: AMPH position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Cortina Asset Management, LLC on AMPH, newest first. How the timeline and the estimate are built.

Cortina Asset Management, LLC held 261,771 AMPH shares at 2019-06-30 per its 13F-HR filed 2019-07-02.

the latest 13F is the newest step

  1. period ended2019-06-30
    13F 261,771 shares
    Change vs previous 13F -2,233 shares

    0.34% of the 13F portfolio, value $5,526,000.

    13F-HR 0001325312-19-000009 filed by Cortina Asset Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  2. period ended2019-03-31
    13F 264,004 shares
    Change vs previous 13F -69,479 shares

    0.34% of the 13F portfolio, value $5,394,000.

    13F-HR 0001325312-19-000007 filed by Cortina Asset Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2018-12-31
    13F 333,483 shares
    Change vs previous 13F -18,687 shares

    0.41% of the 13F portfolio, value $6,636,000.

    13F-HR 0001325312-19-000004 filed by Cortina Asset Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2018-09-30
    13F 352,170 shares
    Change vs previous 13F -40,126 shares

    0.32% of the 13F portfolio, value $6,776,000.

    13F-HR 0001325312-18-000011 filed by Cortina Asset Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2018-06-30
    13F 392,296 shares
    Change vs previous 13F +130,604 shares

    0.28% of the 13F portfolio, value $5,986,000.

    13F-HR 0001325312-18-000009 filed by Cortina Asset Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2018-03-31
    13F 261,692 shares
    Change vs previous 13F not available

    0.24% of the 13F portfolio, value $4,907,000.

    13F-HR 0001325312-18-000007 filed by Cortina Asset Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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