Managers / Q3 2019 · view latest →
Portolan Capital Management, LLC
CIK 0001350290 · 2 INTERNATIONAL PLACE, 26TH FLOOR, BOSTON, MA, 02110 · 617.753.6400
Reported Value
$887M
Q3 2019
Positions
87
Filings on Record
30
2019–present window
Filed
Nov 14, 2019
original filing
Summary
Portolan Capital Management, Llc reported $887M in U.S.-listed holdings across 87 positions for Q3 2019.
Its largest position, UPLDEUR, represents 4.7% of the portfolio.
Compared with Q2 2019, the fund opened 21 new positions and exited 22.
Reported Value by Quarter
13F Reported Value
Portfolio Composition
By security type
Composition data arrives with ticker enrichment.
Quarter-over-Quarter Changes full breakdown →
Holdings — Q3 2019
Filing History
| Quarter | Reported Value | Positions | Filed | Type | Links |
|---|---|---|---|---|---|
| Q1 2026 | $1.9B | 144 | May 15, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q4 2025 | $1.9B | 155 | Feb 17, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q3 2025 | $1.8B | 119 | Nov 13, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q2 2025 | $1.6B | 118 | Aug 13, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q1 2025 | $1.3B | 109 | May 15, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q4 2024 | $1.5B | 131 | Feb 13, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q3 2024 | $1.4B | 129 | Nov 14, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q2 2024 | $1.2B | 117 | Aug 14, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q1 2024 | $1.3B | 116 | May 15, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q4 2023 | $1.1B | 127 | Feb 14, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q3 2023 | $1.1B | 123 | Nov 14, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q2 2023 | $1.1B | 120 | Aug 14, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q1 2023 | $1.0B | 139 | May 15, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q4 2022 | $1.01T | 131 | Feb 13, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q3 2022 | $946M | 128 | Nov 14, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q2 2022 | $993M | 123 | Aug 15, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q1 2022 | $1.3B | 136 | May 16, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q4 2021 | $1.5B | 131 | Feb 14, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q3 2021 | $1.4B | 134 | Nov 15, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q2 2021 | $1.4B | 131 | Aug 16, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q1 2021 | $1.3B | 151 | May 17, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q4 2020 | $1.1B | 164 | Feb 16, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q3 2020 | $884M | 139 | Nov 16, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q2 2020 | $876M | 128 | Aug 14, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q1 2020 | $667M | 112 | May 14, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q4 2019 | $990M | 95 | Feb 14, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q3 2019 | $887M | 87 | Nov 14, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q2 2019 | $930M | 88 | Aug 14, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q1 2019 | $972M | 87 | May 15, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q4 2018 | $807M | 82 | Feb 13, 2019 | 13F-HR | changes · EDGAR ↗ |
13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.