Portolan Capital Management, LLC

CIK

1350290

Location

BOSTON, MA

Portfolio Value

Mid $1,866,798,887

Diversification

Diversified

Filing Date

Global Rank

#1,251 / 8,604 ▲ 34 · as of Mar 2026

Top Industry

Electronic Components 13.0%

3Y Alpha vs SPY

+3.5%

Period ended 3 months ago

Filed May 15, 2026 · 54d

25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+88.7%

SPY

+76.5%

Annualised alpha

+2.7%

Max drawdown

−31.2%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

142 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

4.8%

+0.5 pts

Top 5

17.0%

−0.1 pts

Top 10

28.2%

+1.4 pts

HHI

156

Diversified+15

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Technology	34.1%	$636,157,385	47
Consumer Cyclical	13.8%	$256,695,208	14
Industrials	12.4%	$231,905,858	23
Healthcare	12.0%	$224,408,301	21
Energy	9.8%	$183,113,123	12
Financial Services	7.0%	$130,327,210	10
Communication Services	4.4%	$82,638,942	5
Consumer Defensive	2.2%	$41,704,465	5
Real Estate	2.2%	$40,676,829	2
Utilities	1.4%	$26,040,868	1
Basic Materials	0.7%	$13,130,698	2

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
REAX	Real Brokerage Inc	+3,740,005	14,519,848	$36,299,620
CRGY	Crescent Energy Co	+2,561,242	2,601,142	$35,115,417
LPRO	Open Lending Corp	+2,166,258	6,902,888	$8,628,610
NOK	Nokia Corp	+1,317,848	2,393,970	$19,247,518
CADL	Candel Therapeutics, Inc.	+1,198,958	2,894,325	$14,182,192
GOOS	Canada Goose Holdings Inc.	+1,079,373	3,218,277	$35,304,498
LUXE	LuxExperience B.V.	+1,073,269	3,733,943	$29,871,544
CLBT	Cellebrite DI Ltd.	+893,637	2,180,924	$30,053,132
UPWK	Upwork, Inc	+850,916	1,570,560	$17,213,337
VIRT	Virtu Financial, Inc.	+835,604	1,211,887	$53,298,790
FORR	Forrester Research, Inc.	+835,527	1,541,276	$8,723,622
ADEA	Adeia Inc.	+473,253	729,461	$17,528,947
ECO	Okeanis Eco Tankers Corp.	+377,045	538,860	$27,260,927
PSNL	Personalis, Inc.	+357,516	736,713	$4,692,861
PLSE	Pulse Biosciences, Inc.	+339,873	733,372	$15,833,501
MBLY	Mobileye Global Inc.	+336,199	678,135	$4,658,787
DOUG	Douglas Elliman Inc.	+315,080	2,669,030	$4,377,209
MEC	Mayville Engineering Company, Inc.	+308,374	821,136	$14,739,391
SPT	Sprout Social, Inc.	+256,877	558,350	$3,182,595
TALO	Talos Energy Inc.	+225,449	344,549	$5,430,092
QLYS	Qualys, Inc.	+187,173	239,028	$20,998,609
XPEV	Xpeng Inc.	+178,505	275,432	$4,712,641
PKE	Park Aerospace Corp	+165,620	410,655	$11,243,733
VPG	Vishay Precision Group, Inc.	+142,199	1,019,868	$44,282,668
KRUS	Kura Sushi USA, Inc.	+110,416	301,212	$21,021,585
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
DOMO	Domo, Inc.	−1,961,666	197,104	$603,138
HNST	Honest Company, Inc.	−1,758,372	3,045,834	$8,954,751
QTRX	Quanterix Corp	−1,579,730	2,945,823	$10,369,296
LPTH	Lightpath Technologies Inc	−1,291,722	1,040,462	$10,435,833
ZETA	Zeta Global Holdings Corp.	−832,526	486,271	$7,741,434
WRBY	Warby Parker Inc.	−731,467	500,706	$10,549,875
IIIV	i3 Verticals, Inc.	−464,713	207,274	$4,634,646
DBRG	DigitalBridge Group, Inc.	−451,816	373,130	$5,753,664
TTMI	Ttm Technologies Inc	−419,188	727,494	$70,872,465
CDNA	CareDx, Inc.	−418,423	340,352	$5,908,510
CSTL	Castle Biosciences Inc	−379,180	1,350,283	$33,149,447
LASR	Nlight, Inc.	−364,857	225,576	$12,862,343
FOUR	Shift4 Payments, Inc.	−253,779	214,284	$9,370,639
DAN	DANA Inc	−218,186	34,237	$1,152,075
ACMR	ACM Research, Inc.	−202,250	83,256	$3,276,123
AMPL	Amplitude, Inc.	−200,503	359,593	$2,452,424
AAOI	Applied Optoelectronics, Inc.	−198,625	29,833	$2,523,573
XZO	Exzeo Group, Inc.	−195,129	209,885	$3,079,012
SMTC	Semtech Corp	−176,328	332,327	$25,552,623
GENI	Genius Sports Ltd	−147,101	2,791,018	$12,364,209
MOD	Modine Manufacturing Co	−123,855	412,092	$89,304,457
TSEM	Tower Semiconductor Ltd	−116,482	32,043	$5,622,905
GDOT	Green Dot Corp	−108,037	298,697	$3,351,380
AKAM	Akamai Technologies Inc	−100,879	423,442	$48,632,313
SEZL	Sezzle Inc.	−97,827	70,046	$4,433,211
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
PARR	Par Pacific Holdings, Inc.	693,834	$43,461,761
PBF	PBF Energy Inc.	799,998	$38,095,904
MUSA	Murphy USA Inc.	48,107	$23,763,414
CRCL	Circle Internet Group, Inc.	213,796	$20,398,276
DHT	DHT Holdings, Inc.	1,091,788	$19,946,966
HAFN	Hafnia Ltd	1,948,717	$14,810,249
AS	Amer Sports, Inc.	357,826	$11,779,631
EVLV	Evolv Technologies Holdings, Inc.	1,795,688	$10,863,912
AMSC	American Superconductor Corp /De/	295,636	$10,007,278
TWLO	Twilio Inc	74,769	$9,407,435
MOG-A	Moog Inc.	29,437	$8,614,443
VECO	Veeco Instruments Inc	253,379	$8,579,412
HQY	Healthequity, Inc.	101,646	$8,494,556
GHM	Graham Corp	103,556	$8,172,639
ESI	Element Solutions Inc	221,232	$7,552,860
ACLS	Axcelis Technologies Inc	77,168	$7,182,797
ONON	On Holding AG	202,444	$6,887,144
NOG	Northern Oil & Gas, Inc.	204,244	$5,970,052
BL	Blackline, Inc.	159,026	$5,883,962
CELH	Celsius Holdings, Inc.	164,597	$5,839,901
CENX	Century Aluminum Co	95,039	$5,577,838
TLX	Telix Pharmaceuticals Ltd	541,267	$5,179,925
MIAX	Miami International Holdings, Inc.	128,819	$5,013,635
VIAV	Viavi Solutions Inc.	145,844	$4,853,688
ONTO	Onto Innovation Inc.	22,263	$4,565,473
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
FSLR	First Solar, Inc.	78,761	$20,574,736
FAF	First American Financial Corp	320,670	$19,701,964
SPHR	Sphere Entertainment Co.	175,646	$16,700,421
MRX	Marex Group plc	418,745	$16,063,058
TECH	BIO-TECHNE Corp	249,070	$14,647,806
FCX	Freeport-Mcmoran Inc	288,124	$14,633,817
MGA	Magna International Inc	255,481	$13,617,137
SNAP	Snap Inc	1,496,410	$12,076,028
TGLS	Tecnoglass Inc.	238,852	$12,019,032
HZO	Marinemax Inc	487,426	$11,810,331
ZG	Zillow Group, Inc.	150,068	$10,239,139
METC	Ramaco Resources, Inc.	561,718	$10,110,924
OPRA	Opera Ltd	631,177	$8,937,466
WAT	Waters Corp /De/	22,379	$8,500,215
WIX	Wix.com Ltd.	80,298	$8,342,159
STC	Stewart Information Services Corp	117,708	$8,270,164
DKNG	DraftKings Inc.	183,778	$6,332,989
NUS	Nu Skin Enterprises, Inc.	596,724	$5,740,484
SG	Sweetgreen, Inc.	848,085	$5,733,054
OWLT	Owlet, Inc.	343,543	$5,561,961
BAND	Bandwidth Inc.	336,874	$5,204,703
OLPX	Olaplex Holdings, Inc.	3,082,600	$4,130,684
SMWB	Similarweb Ltd.	492,861	$3,691,528
MRCY	Mercury Systems Inc	46,348	$3,383,867
OUST	Ouster, Inc.	145,148	$3,141,002
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

142 positions · $1,866,798,887 total · as of Mar 31, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 142 positions by value · page 1 of 3

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
MOD	Modine Manufacturing Co Consumer Cyclical	Reduced	412,092	-123,855	$89,304,457	+24.8%	4.78%
TTMI	Ttm Technologies Inc Technology	Reduced	727,494	-419,188	$70,872,465	−10.4%	3.80%
CLS	Celestica Inc Technology	Added	197,863	+25,588	$55,734,049	+9.4%	2.99%
VIRT	Virtu Financial, Inc. Financial Services	Added	1,211,887	+835,604	$53,298,790	+325.1%	2.86%
AKAM	Akamai Technologies Inc Technology	Reduced	423,442	-100,879	$48,632,313	+6.3%	2.61%
VPG	Vishay Precision Group, Inc. Technology	Added	1,019,868	+142,199	$44,282,668	+31.1%	2.37%
PARR	Par Pacific Holdings, Inc. Energy	NEW	693,834	NEW	$43,461,761	NEW	2.33%
POWL	Powell Industries Inc Industrials	Reduced	75,830	-3,286	$41,030,096	+62.7%	2.20%
BIDU	Baidu, Inc. Communication Services	Added	366,429	+102,748	$40,827,519	+18.5%	2.19%
PBF	PBF Energy Inc. Energy	NEW	799,998	NEW	$38,095,904	NEW	2.04%
UTHR	UNITED THERAPEUTICS Corp Healthcare	Added	63,435	+26,682	$37,615,686	+110.1%	2.01%
REAX	Real Brokerage Inc Real Estate	Added	14,519,848	+3,740,005	$36,299,620	−7.7%	1.94%
GOOS	Canada Goose Holdings Inc. Consumer Cyclical	Added	3,218,277	+1,079,373	$35,304,498	+27.5%	1.89%
CRGY	Crescent Energy Co Energy	Added	2,601,142	+2,561,242	$35,115,417	+10389.7%	1.88%
CSTL	Castle Biosciences Inc Healthcare	Reduced	1,350,283	-379,180	$33,149,447	−50.7%	1.78%
LNTH	Lantheus Holdings, Inc. Healthcare	Reduced	417,390	-58,399	$31,659,031	−0.0%	1.70%
CLBT	Cellebrite DI Ltd. Technology	Added	2,180,924	+893,637	$30,053,132	+29.5%	1.61%
LUXE	LuxExperience B.V. Consumer Cyclical	Added	3,733,943	+1,073,269	$29,871,544	+34.5%	1.60%
FLEX	Flex Ltd. Technology	Reduced	443,128	-23,785	$29,007,158	+2.8%	1.55%
FN	Fabrinet Technology	Added	54,763	+43,885	$28,559,999	+476.7%	1.53%
ECO	Okeanis Eco Tankers Corp. Industrials	Added	538,860	+377,045	$27,260,927	+397.8%	1.46%
TLN	Talen Energy Corp Utilities	Added	81,574	+6,590	$26,040,868	−7.4%	1.39%
SMTC	Semtech Corp Technology	Reduced	332,327	-176,328	$25,552,623	−31.8%	1.37%
CNR	Core Natural Resources, Inc. Energy	Added	237,036	+106,794	$24,824,780	+115.3%	1.33%
MUSA	Murphy USA Inc. Consumer Cyclical	NEW	48,107	NEW	$23,763,414	NEW	1.27%
BIIB	Biogen Inc. Healthcare	Added	118,481	+33,491	$21,721,121	+45.2%	1.16%
KRUS	Kura Sushi USA, Inc. Consumer Cyclical	Added	301,212	+110,416	$21,021,585	+110.5%	1.13%
QLYS	Qualys, Inc. Technology	Added	239,028	+187,173	$20,998,609	+204.7%	1.12%
JBL	Jabil Inc Technology	Added	77,197	+6,532	$20,505,839	+27.3%	1.10%
CRCL	Circle Internet Group, Inc. Financial Services	NEW	213,796	NEW	$20,398,276	NEW	1.09%
DHT	DHT Holdings, Inc. Energy	NEW	1,091,788	NEW	$19,946,966	NEW	1.07%
NOK	Nokia Corp Technology	Added	2,393,970	+1,317,848	$19,247,518	+176.4%	1.03%
ALNT	Allient Inc Technology	Added	323,453	+21,565	$19,112,837	+17.8%	1.02%
PRIM	Primoris Services Corp Industrials	Added	130,626	+24,910	$18,684,743	+42.4%	1.00%
DAVE	Dave Inc./DE Technology	Added	105,442	+61,441	$18,356,397	+88.4%	0.98%
KTOS	Kratos Defense & Security Solutions, Inc. Industrials	Reduced	259,811	-34,195	$18,319,273	−17.9%	0.98%
MAMA	Mama's Creations, Inc. Consumer Defensive	Reduced	1,176,936	-1,314,598	$18,054,198	−46.3%	0.97%
ADEA	Adeia Inc. Technology	Added	729,461	+473,253	$17,528,947	+296.6%	0.94%
UPWK	Upwork, Inc Communication Services	Added	1,570,560	+850,916	$17,213,337	+20.7%	0.92%
PLSE	Pulse Biosciences, Inc. Healthcare	Added	733,372	+339,873	$15,833,501	+193.1%	0.85%
PRCH	Porch Group, Inc. Financial Services	Added	2,144,890	+61,835	$15,378,861	−19.1%	0.82%
HAFN	Hafnia Ltd Industrials	NEW	1,948,717	NEW	$14,810,249	NEW	0.79%
MEC	Mayville Engineering Company, Inc. Industrials	Added	821,136	+308,374	$14,739,391	+53.6%	0.79%
CADL	Candel Therapeutics, Inc. Healthcare	Added	2,894,325	+1,198,958	$14,182,192	+48.1%	0.76%
LASR	Nlight, Inc. Technology	Reduced	225,576	-364,857	$12,862,343	−41.9%	0.69%
GENI	Genius Sports Ltd Communication Services	Reduced	2,791,018	-147,101	$12,364,209	−61.8%	0.66%
AS	Amer Sports, Inc. Consumer Cyclical	NEW	357,826	NEW	$11,779,631	NEW	0.63%
EBAY	Ebay Inc Consumer Cyclical	Added	126,096	+67,952	$11,477,257	+126.6%	0.61%
PKE	Park Aerospace Corp Industrials	Added	410,655	+165,620	$11,243,733	+115.0%	0.60%
ENVA	Enova International, Inc. Financial Services	Reduced	80,923	-16,924	$10,991,771	−28.5%	0.59%