Portolan Capital Management, LLC: LASR position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Portolan Capital Management, LLC on LASR, newest first. How the timeline and the estimate are built.
Portolan Capital Management, LLC held 151,867 LASR shares at 2026-06-30 per its 13F-HR filed 2026-08-14.
the latest 13F is the newest step
- period ended2026-06-3013F 151,867 sharesChange vs previous 13F -73,709 shares
0.4% of the 13F portfolio, value $10,572,981.
13F-HR 0001104659-26-096980 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 ended2026-03-3113F 225,576 sharesChange vs previous 13F -364,857 shares
0.68% of the 13F portfolio, value $12,862,344.
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).
- period ended2025-12-3113F 590,433 sharesChange vs previous 13F -179,355 shares
1.19% of the 13F portfolio, value $22,147,142.
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 769,788 sharesChange vs previous 13F not available
1.23% of the 13F portfolio, value $22,808,818.
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).