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Portolan Capital Management, LLCGARPConcentrated trader

CIK: 0001350290 | BOSTON, MA

Q1 2026 vs Q2 2026 ComparisonProfile

Filing History

QuarterForm TypeHoldingsValueFiledSEC
Q2 2026
13F-HR148$2.7B2026-08-14SEC ↗
Q1 2026
13F-HR144$1.9B2026-05-15SEC ↗
Q4 2025
13F-HR155$1.9B2026-02-17SEC ↗
Q3 2025
13F-HR119$1.8B2025-11-13SEC ↗
Q2 2025
13F-HR118$1.6B2025-08-13SEC ↗
Q1 2025
13F-HR109$1.3B2025-05-15SEC ↗
Q4 2024
13F-HR131$1.5B2025-02-13SEC ↗
Q3 2024
13F-HR129$1.4B2024-11-14SEC ↗
Q2 2024
13F-HR117$1.2B2024-08-14SEC ↗
Q1 2024
13F-HR116$1.3B2024-05-15SEC ↗
Q4 2023
13F-HR127$1.1B2024-02-14SEC ↗
Q3 2023
13F-HR123$1.1B2023-11-14SEC ↗
Q2 2023
13F-HR120$1.1B2023-08-14SEC ↗
Q1 2023
13F-HR139$1.0B2023-05-15SEC ↗
Q4 2022
13F-HR131$1.0B2023-02-13SEC ↗
Q3 2022
13F-HR128$112.4M2022-11-14SEC ↗
Q2 2022
13F-HR123$110.7M2022-08-15SEC ↗
Q1 2022
13F-HR136$154.0M2022-05-16SEC ↗
Q4 2021
13F-HR131$229.1M2022-02-14SEC ↗
Q3 2021
13F-HR134$174.4M2021-11-15SEC ↗
Q2 2021
13F-HR131$175.1M2021-08-16SEC ↗
Q1 2021
13F-HR151$198.6M2021-05-17SEC ↗
Q4 2020
13F-HR164$136.1M2021-02-16SEC ↗
Q3 2020
13F-HR139$111.4M2020-11-16SEC ↗
Q2 2020
13F-HR128$129.9M2020-08-14SEC ↗
Q1 2020
13F-HR112$116.2M2020-05-14SEC ↗
Q4 2019
13F-HR95$161.4M2020-02-14SEC ↗
Q3 2019
13F-HR87$126.2M2019-11-14SEC ↗
Q2 2019
13F-HR88$116.7M2019-08-14SEC ↗
Q1 2019
13F-HR87$136.1M2019-05-15SEC ↗
Q4 2018
13F-HR82$93.8M2019-02-13SEC ↗
Q3 2018
13F-HR96$94.0M2018-11-14SEC ↗
Q2 2018
13F-HR99$72.3M2018-08-14SEC ↗
Q1 2018
13F-HR100$79.9M2018-05-14SEC ↗
Q4 2017
13F-HR116$79.3M2018-02-14SEC ↗
Q3 2017
13F-HR111$80.8M2017-11-14SEC ↗
Q2 2017
13F-HR117$115.0M2017-08-14SEC ↗
Q1 2017
13F-HR120$92.2M2017-05-15SEC ↗
Q4 2016
13F-HR125$88.1M2017-02-14SEC ↗
Q3 2016
13F-HR109$81.3M2016-11-14SEC ↗
Q2 2016
13F-HR109$65.6M2016-08-12SEC ↗
Q1 2016
13F-HR111$87.8M2016-05-13SEC ↗
Q4 2015
13F-HR123$72.5M2016-02-12SEC ↗
Q3 2015
13F-HR114$75.6M2015-11-13SEC ↗
Q2 2015
13F-HR119$75.0M2015-08-14SEC ↗
Q1 2015
13F-HR113$55.3M2015-05-15SEC ↗
Q4 2014
13F-HR106$48.5M2015-02-11SEC ↗
Q3 2014
13F-HR104$44.4M2014-11-13SEC ↗
Q2 2014
13F-HR119$29.7M2014-08-12SEC ↗
Q1 2014
13F-HR139$19.1M2014-05-15SEC ↗
Q4 2013
13F-HR119$21.0M2014-02-13SEC ↗
Q3 2013
13F-HR133$15.9M2013-11-08SEC ↗
Q2 2013
13F-HR158$17.4M2013-08-09SEC ↗