OBERWEIS ASSET MANAGEMENT INC/: ECG position timeline

OBERWEIS ASSET MANAGEMENT INC/ held 328,183 ECG 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 328,183 shares

   Change vs previous 13F +1,650 shares

   1.13% of the 13F portfolio, value $54,461,969.

   13F-HR 0001213900-26-089777 filed by OBERWEIS ASSET MANAGEMENT INC/
   Filed 2026-08-14 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC

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

2. period ended2026-03-31

   13F 326,533 shares

   Change vs previous 13F +66,733 shares

   1.14% of the 13F portfolio, value $38,550,486.

   13F-HR 0001213900-26-057307 filed by OBERWEIS ASSET MANAGEMENT INC/
   Filed 2026-05-15 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC

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

3. period ended2025-12-31

   13F 259,800 shares

   Change vs previous 13F 0 shares

   0.81% of the 13F portfolio, value $22,228,488.

   13F-HR 0001213900-26-017101 filed by OBERWEIS ASSET MANAGEMENT INC/
   Filed 2026-02-17 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC

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

4. period ended2025-09-30

   13F 259,800 shares

   Change vs previous 13F +29,700 shares

   0.85% of the 13F portfolio, value $22,277,850.

   13F-HR 0001213900-25-111225 filed by OBERWEIS ASSET MANAGEMENT INC/
   Filed 2025-11-17 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC

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

5. period ended2025-06-30

   13F 230,100 shares

   Change vs previous 13F not available

   0.64% of the 13F portfolio, value $14,618,253.

   13F-HR 0001213900-25-076460 filed by OBERWEIS ASSET MANAGEMENT INC/
   Filed 2025-08-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:23:11 UTC

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