Portolan Capital Management LLC

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Portolan Capital Management LLC ✚
CRD #	157542
SEC #	801-73963
CIK #	0001350290
AUM	$1.6 B (2025-03-31)
Employees	12 (33% Investors, 0% Brokers)
Phone	617-753-6400
Address	Two International Place Boston, MA 02110
Source	[IAPD] [EDGAR] [Website] [LinkedIn]

Total AUM ($M) Copy

CIK	Period
0001350290	2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31

CIK

Period

0001350290

Sector	Form 13F Holdings	Value ($M)
	Celestica Inc	85.8
	Kratos Defense & Security Solutions Inc	61.7
	elf Beauty Inc	58.1
	Aerovironment Inc	51.0
	Modine Manufacturing Co	48.5
	TTM Technologies Inc	45.9
	Shift4 Payments Inc	43.1
	Genius Sports Ltd	42.5
	Powell Industries Inc	35.9
	Colony NorthStar Inc	31.9
	Honest Company Inc	31.6
	Castle Biosciences Inc	30.4
	Proptech Acquisition Corp	28.8
	Vishay Precision Group Inc	27.8
	I3 Verticals Inc	26.4
	MYT Netherlands Parent BV	24.3
	Quanterix Corp	24.2
	Flextronics International Ltd	24.0
	SLM Corp	23.3
	DraftKings Inc	21.0
	Lantheus Holdings Inc	20.8
	Warby Parker Inc	20.8
	Potbelly Corp	20.4
	Zeta Global Holdings Corp	20.4
	RadNet Inc	19.4
	Talen Energy Corp	19.1
	Coach Inc	19.0
	Ramaco Resources Inc	18.6
	Mascot Properties Inc	18.0
	Semtech Corp	17.1
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Type	Form D Funds	Date	Sold ($M)	AUM ($M)
HF	Portolan Co-Investment Fund LP	[2025-03-31]	0.0	0.0
HF	Portolan Select Fund LP	[2020-03-30]	136.2	167.4
HF	Portolan Equity Offshore Fund Ltd	[2014-03-31]	448.2	70.0
HF	Portolan Equity Fund LP	[2012-05-18]	448.2	177.2
HF	Portolan Pilot Fund LP	2012-02-14		59.5
HF	Portolan Pilot Master Fund Ltd	2012-02-14		65.0
HF	Portolan Pilot Offshore Fund Ltd	2012-02-14		63.3

AUM Breakdown	Accounts	AUM ($M)
By Client Type
(a) Individuals (other than high net worth individuals)	0	0.0
(b) Individuals (high net worth individuals)	16	197.4
(c) Banking or thrift institutions	0	0.0
(d) Investment companies	1	838.0
(e) Business development companies	0	0.0
(f) Pooled investment vehicles	4	463.3
(g) Pension and profit sharing plans	0	0.0
(h) Charitable organizations	0	83.4
(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	22	1,582.0
By Discretionary
Discretionary	22	1,582.0
Non-Discretionary	0	0.0
Total	22	1,582.0
By Non-United States Persons
Non-United States Persons		118.7
United States Persons		1,463.3
Total	22	1,582.0

Form D Directors	# Filings	# Firms	2011 - 2025
George McCabe	8
Christopher Nardone	6
Portolan Capital Management LLC	5
Betsy Flaherty	4
Portolan Investments LLC	4
Promoter Portolan Capital Management LLC	3
Investment Manager Portolan Capital Management LLC	3
General Partner Portolan Investments LLC	2

EDGAR Form	CIK	2011 - 2025
13F-HR	[0001350290]
SC 13G	[0001350290]

Form 13D/13G Filer	Form 13D/13G Subject	Filed
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]
View All

Comparable Firms	State	AUM ($B)
3EDGE Asset Management LP ✚	FL	1.7
Fairholme Capital Management LLC ✚	FL	1.7
Quent Capital LLC ✚	NY	1.6
Penn Capital Management Company LLC ✚	PA	1.6
Adelante Capital Management LLC ✚	CA	1.6
Seacrest Wealth Management LLC ✚	NY	1.6
Lake Hill Capital Management LLC ✚	NY	1.6
Seelaus Asset Management LLC ✚	NJ	1.6
Halyard Asset Management LLC ✚	NY	1.5
Cushing Asset Management LP ✚	TX	1.5

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Portolan Capital Management LLC

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