Portolan Capital Management, LLC: CLBT position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Portolan Capital Management, LLC on CLBT, newest first. How the timeline and the estimate are built.
Portolan Capital Management, LLC held 1,932,514 CLBT shares at 2026-06-30 per its 13F-HR filed 2026-08-14.
the latest 13F is the newest step
- period ended2026-06-3013F 1,932,514 sharesChange vs previous 13F -248,410 shares
1.06% of the 13F portfolio, value $28,214,704.
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 2,180,924 sharesChange vs previous 13F +893,637 shares
1.6% of the 13F portfolio, value $30,053,133.
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 1,287,287 sharesChange vs previous 13F -1,132,375 shares
1.24% of the 13F portfolio, value $23,209,785.
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 2,419,662 sharesChange vs previous 13F +1,407,818 shares
2.43% of the 13F portfolio, value $44,836,337.
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 1,011,844 sharesChange vs previous 13F +22,852 shares
1.02% of the 13F portfolio, value $16,189,504.
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 988,992 sharesChange vs previous 13F +74,136 shares
1.46% of the 13F portfolio, value $19,216,115.
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 914,856 sharesChange vs previous 13F -309,164 shares
1.36% of the 13F portfolio, value $20,154,278.
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 1,224,020 sharesChange vs previous 13F not available
1.49% of the 13F portfolio, value $20,612,497.
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).