OBERWEIS ASSET MANAGEMENT INC/: NPKI position timeline

OBERWEIS ASSET MANAGEMENT INC/ held 587,550 NPKI 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 587,550 shares

   Change vs previous 13F +69,400 shares

   0.19% of the 13F portfolio, value $9,347,921.

   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 518,150 shares

   Change vs previous 13F +9,400 shares

   0.22% of the 13F portfolio, value $7,507,994.

   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 508,750 shares

   Change vs previous 13F +12,250 shares

   0.22% of the 13F portfolio, value $6,064,300.

   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 496,500 shares

   Change vs previous 13F 0 shares

   0.22% of the 13F portfolio, value $5,615,415.

   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 496,500 shares

   Change vs previous 13F not available

   0.18% of the 13F portfolio, value $4,225,215.

   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).