Cortina Asset Management, LLC: ATKR position timeline

Cortina Asset Management, LLC held 0 ATKR shares at 2019-03-31 per its 13F-HR filed 2019-05-13.

the latest 13F is the newest step

1. period ended2019-03-31

   13F 0 shares

   Change vs previous 13F -136,678 shares

   13F-HR 0001325312-19-000007 filed by Cortina Asset Management, LLC
   Filed 2019-05-13 (acceptance time not in the bulk data set), ingested 2026-10-07 18:56:23 UTC

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

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

2. period ended2018-12-31

   13F 136,678 shares

   Change vs previous 13F -207,954 shares

   0.17% of the 13F portfolio, value $2,712,000.

   13F-HR 0001325312-19-000004 filed by Cortina Asset Management, LLC
   Filed 2019-02-12 (acceptance time not in the bulk data set), ingested 2026-10-07 19:02:51 UTC

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

3. period ended2018-09-30

   13F 344,632 shares

   Change vs previous 13F +5,280 shares

   0.43% of the 13F portfolio, value $9,143,000.

   13F-HR 0001325312-18-000011 filed by Cortina Asset Management, LLC
   Filed 2018-11-13 (acceptance time not in the bulk data set), ingested 2026-10-07 19:03:47 UTC

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

4. period ended2018-06-30

   13F 339,352 shares

   Change vs previous 13F +70,230 shares

   0.33% of the 13F portfolio, value $7,048,000.

   13F-HR 0001325312-18-000009 filed by Cortina Asset Management, LLC
   Filed 2018-08-10 (acceptance time not in the bulk data set), ingested 2026-10-07 19:04:44 UTC

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

5. period ended2018-03-31

   13F 269,122 shares

   Change vs previous 13F +27,134 shares

   0.26% of the 13F portfolio, value $5,342,000.

   13F-HR 0001325312-18-000007 filed by Cortina Asset Management, LLC
   Filed 2018-05-11 (acceptance time not in the bulk data set), ingested 2026-10-07 19:05:42 UTC

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

6. period ended2017-12-31

   13F 241,988 shares

   Change vs previous 13F +3,909 shares

   0.23% of the 13F portfolio, value $5,191,000.

   13F-HR 0001325312-18-000004 filed by Cortina Asset Management, LLC
   Filed 2018-02-12 (acceptance time not in the bulk data set), ingested 2026-10-07 19:06:41 UTC

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

7. period ended2017-09-30

   13F 238,079 shares

   Change vs previous 13F not available

   0.19% of the 13F portfolio, value $4,645,000.

   13F-HR 0001325312-17-000018 filed by Cortina Asset Management, LLC
   Filed 2017-11-08 (acceptance time not in the bulk data set), ingested 2026-10-07 19:07:28 UTC

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