Portolan Capital Management, LLC: SMWB position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Portolan Capital Management, LLC on SMWB, newest first. How the timeline and the estimate are built.
Portolan Capital Management, LLC held 0 SMWB shares at 2026-03-31 per its 13F-HR filed 2026-05-15.
the latest 13F is the newest step
- period ended2026-03-3113F 0 sharesChange vs previous 13F -492,861 shares
13F-HR 0001104659-26-062488 filed by Portolan Capital 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 ended2025-12-3113F 492,861 sharesChange vs previous 13F -686,139 shares
0.2% of the 13F portfolio, value $3,691,529.
13F-HR 0001104659-26-016304 filed by Portolan Capital Management, LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 1,179,000 sharesChange vs previous 13F +451,408 shares
0.59% of the 13F portfolio, value $10,964,700.
13F-HR 0001104659-25-111284 filed by Portolan Capital 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 727,592 sharesChange vs previous 13F +357,401 shares
0.36% of the 13F portfolio, value $5,704,321.
13F-HR 0001104659-25-077571 filed by Portolan Capital 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 370,191 sharesChange vs previous 13F +87,288 shares
0.23% of the 13F portfolio, value $3,061,480.
13F-HR 0001104659-25-049320 filed by Portolan Capital Management, LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 282,903 sharesChange vs previous 13F +282,903 shares
0.27% of the 13F portfolio, value $4,008,736.
13F-HR 0001104659-25-012988 filed by Portolan Capital Management, LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 0 sharesChange vs previous 13F not available
13F-HR 0001104659-24-118686 filed by Portolan Capital 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.