Portolan Capital Management, LLC: FN position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Portolan Capital Management, LLC on FN, newest first. How the timeline and the estimate are built.
Portolan Capital Management, LLC held 6,418 FN shares at 2026-06-30 per its 13F-HR filed 2026-08-14.
the latest 13F is the newest step
- period ended2026-06-3013F 6,418 sharesChange vs previous 13F -48,345 shares
0.14% of the 13F portfolio, value $3,607,429.
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 54,763 sharesChange vs previous 13F +43,885 shares
1.52% of the 13F portfolio, value $28,560,000.
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 10,878 sharesChange vs previous 13F -17,892 shares
0.27% of the 13F portfolio, value $4,952,536.
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 28,770 sharesChange vs previous 13F +9,354 shares
0.57% of the 13F portfolio, value $10,490,117.
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 19,416 sharesChange vs previous 13F not available
0.36% of the 13F portfolio, value $5,721,507.
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).