Walthausen & Co., LLC: MLR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Walthausen & Co., LLC on MLR, newest first. How the timeline and the estimate are built.

Walthausen & Co., LLC held 0 MLR shares at 2021-09-30 per its 13F-HR filed 2021-11-12.

the latest 13F is the newest step

period ended2021-09-30
13F 0 shares
Change vs previous 13F -12,482 shares
13F-HR 0001483339-21-000006 filed by Walthausen & Co., LLC
Filed 2021-11-12 (acceptance time not in the bulk data set), ingested 2026-10-07 18:37:51 UTC
Acceptance time not in the bulk data set (spec §4.2).
Exited: the 13F for this period no longer lists the position.
period ended2021-06-30
13F/A 12,482 shares
Change vs previous 13F -67,421 shares
0.11% of the 13F portfolio, value $492,000.
13F-HR/A 0001483339-21-000005 filed by Walthausen & Co., LLC
Filed 2021-08-13 (acceptance time not in the bulk data set), ingested 2026-10-07 18:38:33 UTC
Acceptance time not in the bulk data set (spec §4.2).
period ended2021-03-31
13F 79,903 shares
Change vs previous 13F -72,180 shares
0.78% of the 13F portfolio, value $3,691,000.
13F-HR 0001483339-21-000003 filed by Walthausen & Co., LLC
Filed 2021-05-13 (acceptance time not in the bulk data set), ingested 2026-10-07 18:39:37 UTC
Acceptance time not in the bulk data set (spec §4.2).
period ended2020-12-31
13F 152,083 shares
Change vs previous 13F not available
1.58% of the 13F portfolio, value $5,782,000.
13F-HR 0001483339-21-000002 filed by Walthausen & Co., LLC
Filed 2021-02-12 (acceptance time not in the bulk data set), ingested 2026-10-07 18:42:52 UTC
Acceptance time not in the bulk data set (spec §4.2).