Penbrook Management LLC: ASPN position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Penbrook Management LLC on ASPN, newest first. How the timeline and the estimate are built.
Penbrook Management LLC held 0 ASPN shares at 2025-12-31 per its 13F-HR filed 2026-01-06.
the latest 13F is the newest step
- period ended2025-12-3113F 0 sharesChange vs previous 13F -14,180 shares
13F-HR 0001381055-26-000001 filed by Penbrook Management LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
Exited: the 13F for this period no longer lists the position.
- period ended2025-09-3013F 14,180 sharesChange vs previous 13F 0 shares
0.07% of the 13F portfolio, value $98,692.
13F-HR 0001381055-25-000008 filed by Penbrook Management LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F/A 14,180 sharesChange vs previous 13F -3,975 shares
0.06% of the 13F portfolio, value $83,945.
13F-HR/A 0001381055-25-000006 filed by Penbrook Management LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 18,155 sharesChange vs previous 13F not available
0.09% of the 13F portfolio, value $116,010.
13F-HR 0001381055-25-000002 filed by Penbrook Management LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).