Weiss Asset Management LP: MKSI position timeline

Weiss Asset Management LP held 734 MKSI 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 734 shares

   Change vs previous 13F +734 shares

   <0.01% of the 13F portfolio, value $326,483.

   13F-HR 0001357550-26-000029 filed by Weiss Asset Management 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 ended2025-12-31

   13F/A 0 shares

   Change vs previous 13F -111,075 shares

   13F-HR 0001357550-26-000011 filed by Weiss Asset Management 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).

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

3. period ended2025-09-30

   13F/A 111,075 shares

   Change vs previous 13F +111,075 shares

   0.2% of the 13F portfolio, value $13,747,753.

   13F-HR 0001357550-25-000038 filed by Weiss Asset Management 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).

4. period ended2024-12-31

   13F/A 0 shares

   Change vs previous 13F -17,009 shares

   13F-HR 0001357550-25-000013 filed by Weiss Asset Management LP
   Filed 2025-02-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:55 UTC

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

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

5. period ended2024-09-30

   13F/A 17,009 shares

   Change vs previous 13F not available

   0.05% of the 13F portfolio, value $1,849,048.

   13F-HR 0001357550-24-000029 filed by Weiss Asset Management LP
   Filed 2024-11-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:26:56 UTC

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