Portolan Capital Management LLC

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Portolan Capital Management LLC
✚
CRD #157542
SEC #801-73963
CIK #0001350290
AUM 2,021.4 M (2026-04-15)
Employees 12 (33% Investors, 0% Brokers)
Fees
Minimum
Phone617-753-6400
AddressTwo International Place
Boston, MA 02110
Source [IAPD] [EDGAR] [Website] [LinkedIn]
Total AUM ($B)
3.02.41.81.20.60.02006201320202027
Sector Form 13F Holdings Value ($M)
Modine Manufacturing Co 89.3
TTM Technologies Inc 70.9
Celestica Inc 55.7
Virtu Financial Inc 53.3
Akamai Technologies Inc 48.6
Vishay Precision Group Inc 44.3
Delta Petroleum Corp/CO 43.5
Powell Industries Inc 41.0
Baidu Inc 40.8
PBF Energy Inc 38.1
View All
Holdings by Sector ($M)
19001520114076038002011201620212027
Type Form D Funds Date Sold AUM
HF Portolan Co-Investment Fund LP [2025-03-31] 39.8 M 46.2 M
Filed 2025-12-04 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $5,000,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Portolan Select Fund LP [2020-03-30] 138.0 M 199.7 M
Filed 2026-01-21 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Remaining Indefinite · Duration More than one year · Commission $9,375 · Net Assets Decline to Disclose
HF Portolan Equity Offshore Fund Ltd [2014-03-31] 138.1 M 70.0 M
Filed 2024-04-04 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $100,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Portolan Equity Fund LP [2012-05-18] 448.2 M 201.9 M
Filed 2025-04-04 (D/A) · Exemption 506(b), 3(c), 3(c)(7) · Minimum $286,000 · Remaining Indefinite · Duration More than one year · Net Assets Decline to Disclose
HF Portolan Pilot Fund LP 2012-02-14 59.5 M
HF Portolan Pilot Master Fund Ltd 2012-02-14 65.0 M
HF Portolan Pilot Offshore Fund Ltd 2012-02-14 63.3 M
AUM Breakdown Accounts AUM ($B)
By Client Type
(a) Individuals (other than high net worth individuals) 0 0.0
(b) Individuals (high net worth individuals) 14 0.3
(c) Banking or thrift institutions 0 0.0
(d) Investment companies 1 1.0
(e) Business development companies 0 0.0
(f) Pooled investment vehicles 4 0.6
(g) Pension and profit sharing plans 0 0.0
(h) Charitable organizations 0 0.1
(i) State or municipal government entities 0 0.0
(j) Other investment advisers 0 0.0
(k) Insurance companies 0 0.0
(l) Sovereign wealth funds and foreign official institutions 0 0.0
(m) Corporations or other businesses not listed above 0 0.0
(n) Other 0 0.0
Total 20 2.0
By Discretionary
Discretionary 20 2.0
Non-Discretionary 0 0.0
Total 20 2.0
By Non-United States Persons
Non-United States Persons 0.1
United States Persons 1.9
Total 20 2.0
Form D Directors Role # Filings # Firms 2011 - 2026
Philip Cater Director 97 25
George McCabe Executive Officer 8 3
Christopher Nardone Executive Officer 6 2
Portolan Capital Management LLC Executive Officer 5 2
Portolan Investments LLC Executive Officer, Promoter 4 2
Promoter Portolan Capital Management LLC Promoter 3 2
Investment Manager Portolan Capital Management LLC Promoter 3 2
General Partner Portolan Investments LLC Promoter 2 2
Betsy Flaherty Executive Officer 4 1
EDGAR Form CIK 2011 - 2026
13F-HR [0001350290]
SC 13G [0001350290]
Form 13D/13G Filer Form 13D/13G Subject Filed
Portolan Capital Management LLC Tecogen Inc [2026-06-10]
Portolan Capital Management LLC Mayville Engineering Company Inc [2026-05-28]
Portolan Capital Management LLC Open Lending Corp [2026-02-26]
Portolan Capital Management LLC Forrester Research Inc [2026-02-19]
Portolan Capital Management LLC Canada Goose Holdings Inc [2026-01-16]
Portolan Capital Management LLC Real Brokerage Inc [2026-01-08]
Portolan Capital Management LLC Potbelly Corp [2025-06-27]
Portolan Capital Management LLC Castle Biosciences Inc [2025-04-14]
Portolan Capital Management LLC Mama's Creations Inc [2025-04-11]
Portolan Capital Management LLC Vishay Precision Group Inc [2025-02-06]
Portolan Capital Management LLC Sportsman's Warehouse Holdings Inc [2024-11-06]
Portolan Capital Management LLC Orion Group Holdings Inc [2024-07-22]
Portolan Capital Management LLC Quanterix Corp [2024-06-27]
Portolan Capital Management LLC Identiv Inc [2024-03-14]
Portolan Capital Management LLC GEN Restaurant Group Inc [2023-12-18]
Portolan Capital Management LLC Honest Company Inc [2023-04-13]
Portolan Capital Management LLC Emcore Corp [2023-03-24]
Portolan Capital Management LLC Bel Fuse Inc /NJ [2023-03-10]
Portolan Capital Management LLC KURA Sushi USA Inc [2023-01-20]
Portolan Capital Management LLC Porch Group Inc [2022-12-05]
Portolan Capital Management LLC Richardson Electronics Ltd [2022-08-15]
Portolan Capital Management LLC Lantronix Inc [2022-05-27]
Portolan Capital Management LLC Applied Genetic Technologies Corp [2022-02-15]
Portolan Capital Management LLC Alta Equipment Group Inc [2022-02-04]
Portolan Capital Management LLC Inotiv Inc [2021-10-21]
Portolan Capital Management LLC Harvard Bioscience Inc [2021-09-03]
Portolan Capital Management LLC BlueLinx Holdings Inc [2021-07-09]
Portolan Capital Management LLC Waitr Holdings Inc [2021-07-09]
Portolan Capital Management LLC QUMU Corp [2021-06-11]
Portolan Capital Management LLC Full House Resorts Inc [2021-05-10]
Portolan Capital Management LLC Identiv Inc [2021-04-19]
Portolan Capital Management LLC Destination XL Group Inc [2021-02-08]
Portolan Capital Management LLC TravelCenters of America Inc /MD/ [2021-02-05]
Portolan Capital Management LLC YRC Worldwide Inc [2021-01-29]
Portolan Capital Management LLC BM Technologies Inc [2021-01-15]
Portolan Capital Management LLC Aemetis Inc [2020-12-31]
Portolan Capital Management LLC Recro Pharma Inc [2020-12-31]
Portolan Capital Management LLC ICAD Inc [2020-12-28]
Portolan Capital Management LLC Applied Genetic Technologies Corp [2020-09-28]
Portolan Capital Management LLC PFSweb Inc [2020-09-18]
Portolan Capital Management LLC Proptech Acquisition Corp [2020-09-14]
Portolan Capital Management LLC Charah Solutions Inc [2020-07-20]
Portolan Capital Management LLC Upland Software Inc [2019-10-21]
Portolan Capital Management LLC elf Beauty Inc [2019-05-01]
Portolan Capital Management LLC HyreCar Inc [2019-03-14]
Portolan Capital Management LLC Bandwidth Inc [2018-06-27]
Portolan Capital Management LLC on Deck Capital Inc [2018-06-22]
Portolan Capital Management LLC Carbonite Inc [2018-04-16]
Portolan Capital Management LLC Quantum Corp /DE/ [2018-02-02]
Portolan Capital Management LLC Internap Corp [2018-01-05]
Portolan Capital Management LLC Emcore Corp [2017-08-17]
Portolan Capital Management LLC USA Truck Inc [2017-07-07]
Portolan Capital Management LLC US Auto Parts Network Inc [2017-06-01]
Portolan Capital Management LLC Carecom Inc [2017-05-11]
Portolan Capital Management LLC Apptio Inc [2017-04-13]
Portolan Capital Management LLC inContact Inc [2015-08-17]
Portolan Capital Management LLC Covisint Corp [2015-05-08]
Portolan Capital Management LLC Datawatch Corp [2015-01-13]
Portolan Capital Management LLC Casella Waste Systems Inc [2014-10-20]
Portolan Capital Management LLC Zale Corp [2014-02-13]
Portolan Capital Management LLC Zale Corp [2013-04-05]
Portolan Capital Management LLC Zale Corp [2013-02-01]
Portolan Capital Management LLC Zale Corp [2012-03-13]
Firm Profile (Form ADV)
Discretionary AUM$0.5B
ServesInstitutional, Retail
Fund TypesHedge Fund
LEI25490063K3UNKW5GPT61
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