Madison Avenue Partners, LP: SNDK position timeline

Madison Avenue Partners, LP held 9,698 SNDK 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 9,698 shares

   Change vs previous 13F -609,312 shares

   0.95% of the 13F portfolio, value $22,050,634.

   13F-HR 0001801265-26-000005 filed by Madison Avenue Partners, LP
   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 619,010 shares

   Change vs previous 13F -815,162 shares

   17.1% of the 13F portfolio, value $393,281,813.

   13F-HR 0001801265-26-000003 filed by Madison Avenue Partners, LP
   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 1,434,172 shares

   Change vs previous 13F -628,349 shares

   14.63% of the 13F portfolio, value $340,443,749.

   13F-HR 0001801265-26-000002 filed by Madison Avenue Partners, LP
   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 2,062,521 shares

   Change vs previous 13F -1,508,588 shares

   13.81% of the 13F portfolio, value $231,414,856.

   13F-HR 0001801265-25-000008 filed by Madison Avenue Partners, LP
   Filed 2025-11-14 (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 3,571,109 shares

   Change vs previous 13F not available

   10.81% of the 13F portfolio, value $161,949,793.

   13F-HR 0001801265-25-000005 filed by Madison Avenue Partners, LP
   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).