Portolan Capital Management, LLC

CIK Number: 0001350290

1.59B
Market Value
108
# of Holdings
7 months
Avg. Holding Period
Win Rate
Peformance 3-Years

Filing Date: May 15, 2025

Rank Symbol Name Price % Change Shares % Change Shares Market Value Avg. Price Paid % Weight Asset Type
1 LNTH Lantheus Holdin...
54.46
+1.25% 867.31K +6.73% 84.65M 81.42 6.43% Share
2 SLM SLM Corporation
32.99
-0.3% 1.51M +67.93% 44.42M 26.58 3.38% Share
3 KTOS Kratos Defense ...
69.12
+0.54% 1.46M +8.36% 43.37M 18.76 3.30% Share
4 GENI Genius Sports L...
12.91
-0.12% 4.28M +39.47% 42.86M 6.41 3.26% Share
5 MOD Modine Manufact...
139.58
-1.51% 493.57K +50.07% 37.88M 67.74 2.88% Share
6 FOUR Shift4 Payments...
89.15
-1.04% 406.5K +188.36% 33.22M 76.69 2.52% Share
7 EBAY eBay Inc.
98.50
-2.25% 474.66K +99.33% 32.15M 65.34 2.44% Share
8 GTES Gates Industria...
24.51
-3.24% 1.73M +54.97% 31.88M 19.8 2.42% Share
9 CLS Celestica Inc.
196.57
-3.75% 392.92K -37.33% 30.97M 57.79 2.35% Share
10 HNST The Honest Comp...
3.94
-1.5% 5.52M +2.99% 25.94M 2.46 1.97% Share
11 CSTL Castle Bioscien...
19.82
+2.14% 1.27M +62.92% 25.33M 20.97 1.93% Share
12 ELF e.l.f. Beauty, ...
119.65
-2.66% 395.25K +71.85% 24.82M 70.35 1.89% Share
13 OPRA Opera Limited
15.40
-6.38% 1.53M +104.41% 24.38M 15.32 1.85% Share
14 PRCH Porch Group, In...
15.42
-3.93% 3.29M +43.17% 24M 5.22 1.82% Share
15 RDNT RadNet, Inc.
68.75
+0.50% 478.41K +12.74% 23.79M 60.78 1.81% Share
16 TREE LendingTree, In...
62.00
+0.32% 438.8K +100.00% 22.06M 50.27 1.68% Share
17 TTMI TTM Technologie...
42.62
-5.2% 1.02M -21.52% 20.95M 18.75 1.59% Share
18 CROX Crocs, Inc.
84.06
+0.80% 194.21K +138.50% 20.63M 107.86 1.57% Share
19 DBRG DigitalBridge G...
11.21
-2.39% 2.27M +186.22% 19.99M 9.97 1.52% Share
20 MYTE MYT Netherlands...
7.64
-2.55% 2.63M +38.12% 19.87M 5.13 1.51% Share
21 VPG Vishay Precisio...
27.90
+0.40% 820.97K +66.80% 19.78M 23.72 1.50% Share
22 IIIV i3 Verticals, I...
31.96
-3% 789.16K +16.72% 19.47M 23.53 1.48% Share
23 LQDT Liquidity Servi...
26.21
+0.23% 626.36K +100.00% 19.42M 31.01 1.48% Share
24 QTRX Quanterix Corpo...
4.54
-5.22% 2.96M +14.51% 19.29M 14.46 1.47% Share
25 CLBT Cellebrite DI L...
15.33
+9.58% 988.99K +8.10% 19.22M 12.54 1.46% Share
26 KMPR Kemper Corporat...
54.11
+2.77% 286.56K +24.48% 19.16M 61.5 1.46% Share
27 KRUS Kura Sushi USA,...
78.27
-1.04% 373K -0.07% 19.1M 82.57 1.45% Share
28 TPR Tapestry, Inc.
95.63
-15.77% 247.11K +24.86% 17.4M 66.34 1.32% Share
29 PAYO Payoneer Global...
6.69
-1.76% 2.24M +3.22% 16.4M 7.94 1.25% Share
30 DKNG DraftKings Inc.
43.65
+1.14% 492.42K +53.60% 16.35M 36.14 1.24% Share
31 ACI Albertsons Comp...
19.05
-0.26% 709.58K +44.82% 15.6M 20.37 1.19% Share
32 SMCI Super Micro Com...
45.49
-1.26% 433.86K +363.11% 14.86M 33.43 1.13% Share
33 VIRT Virtu Financial...
41.76
-0.17% 388.84K -26.44% 14.82M 31.82 1.13% Share
34 UTHR United Therapeu...
312.06
+0.76% 45.07K +216.29% 13.89M 283.1 1.06% Share
35 QNST QuinStreet, Inc...
14.94
-2.35% 778.3K -15.15% 13.88M 15.18 1.06% Share
36 BELFB Bel Fuse Inc.
132.41
-1.61% 184.22K -11.63% 13.79M 67.44 1.05% Share
37 BIDU Baidu, Inc.
88.72
-2.58% 134.55K +100.00% 12.38M 92.03 0.94% Share
38 DY Dycom Industrie...
268.18
-2.1% 81K +248.43% 12.34M 158.57 0.94% Share
39 PBPB Potbelly Corpor...
12.46
-2.27% 1.28M +29.44% 12.14M 10.58 0.92% Share
40 MAMA Mama's Creation...
8.13
-3.33% 1.82M +122.03% 11.83M 6.73 0.90% Share
41 SKX Skechers U.S.A....
63.04
+0.03% 199.87K +0.52% 11.35M 57.23 0.86% Share
42 SG Sweetgreen, Inc...
9.15
-4.74% 439.85K +43.27% 11.01M 19.94 0.84% Share
43 RPRX Royalty Pharma ...
36.50
+0.11% 352.26K +2.35% 10.97M 26.98 0.83% Share
44 ENVA Enova Internati...
110.08
-0.18% 112.51K -46% 10.86M 65.23 0.83% Share
45 WEAV Weave Communica...
7.74
-4.27% 952.16K +119.65% 10.56M 13.29 0.80% Share
46 ZETA Zeta Global Hol...
17.81
-3.42% 741.85K +11.66% 10.06M 9.92 0.76% Share
47 NOG Northern Oil an...
24.81
-0.2% 331.95K +68.48% 10.04M 33.96 0.76% Share
48 SRAD Sportradar Grou...
31.18
+1.04% 438.02K -38.77% 9.47M 12.11 0.72% Share
49 FLEX Flex Ltd.
49.45
-1.79% 280.91K -35.47% 9.29M 22.34 0.71% Share
50 STKL SunOpta Inc.
6.13
-2.7% 1.89M +13.59% 9.21M 7.09 0.70% Share
51 POWL Powell Industri...
255.50
-1.62% 53.22K +322.65% 9.07M 182.47 0.69% Share
52 TTWO Take-Two Intera...
233.16
-1.26% 42.73K +0.55% 8.86M 145.39 0.67% Share
53 GES Guess', Inc.
13.36
-1.84% 776.18K +100.00% 8.59M 11.07 0.65% Share
54 TLN Talen Energy Co...
380.60
+0.09% 42.67K -72.36% 8.52M 178.24 0.65% Share
55 UPWK Upwork Inc.
13.70
-2.77% 644.55K +100.00% 8.41M 13.05 0.64% Share
56 PSIX Power Solutions...
81.21
-10.24% 296.44K -13.14% 7.49M 29.75 0.57% Share
57 GPOR Gulfport Energy...
167.14
-0.81% 40.49K +100.00% 7.46M 184.14 0.57% Share
58 CDNA CareDx, Inc
11.83
-2.47% 411.68K +100.00% 7.31M 17.75 0.56% Share
59 META Meta Platforms,...
781.96
+0.24% 12.44K -15.39% 7.17M 148.73 0.55% Share
60 ZGN Ermenegildo Zeg...
8.13
-0.85% 957.2K +135.92% 7.08M 7.76 0.54% Share
61 HZO MarineMax, Inc.
25.83
-0.88% 322.11K +51.97% 6.93M 30.56 0.53% Share
62 NTGR NETGEAR, Inc.
24.46
-4.12% 283.09K +47.28% 6.92M 26.78 0.53% Share
63 LIND Lindblad Expedi...
13.26
-2.28% 689.25K +26.64% 6.39M 10.33 0.49% Share
64 MRX Marex Group plc...
35.83
+0.59% 174.2K -22.1% 6.15M 31.17 0.47% Share
65 HCAT Health Catalyst...
2.92
-9.32% 1.32M +75.84% 5.97M 6.51 0.45% Share
66 CTOS Custom Truck On...
5.97
-1.16% 1.4M -3.74% 5.9M 5.99 0.45% Share
67 BV BrightView Hold...
14.80
-1.6% 421.34K +28.98% 5.41M 12.85 0.41% Share
68 GDOT Green Dot Corpo...
13.80
-1.99% 636.07K +100.00% 5.37M 8.44 0.41% Share
69 BIO Bio-Rad Laborat...
287.02
-0.05% 21.74K -28.92% 5.29M 378.49 0.40% Share
70 TGLS Tecnoglass Inc.
79.14
-4.72% 73.15K -35.85% 5.23M 18.98 0.40% Share
71 CELH Celsius Holding...
56.63
+1.00% 142.55K +100.00% 5.08M 35.62 0.39% Share
72 CADL Candel Therapeu...
6.04
-5.55% 881.18K +16.91% 4.98M 8.24 0.38% Share
73 GEN Gen Digital Inc...
31.49
-2.08% 187.17K +100.00% 4.97M 26.54 0.38% Share
74 WRBY Warby Parker In...
26.86
+0.17% 267.68K -39.41% 4.88M 18.42 0.37% Share
75 MYGN Myriad Genetics...
5.89
+0.34% 549.92K +100.00% 4.88M 8.87 0.37% Share
76 ECPG Encore Capital ...
41.50
-0.48% 140.73K -34.67% 4.82M 47.77 0.37% Share
77 KOS Kosmos Energy L...
1.75
-0.57% 2.01M +24.38% 4.59M 3.2 0.35% Share
78 DOMO Domo, Inc.
14.13
-1.91% 584.28K +100.00% 4.53M 7.76 0.34% Share
79 OPRT Oportun Financi...
6.19
-0.96% 818.35K +100.00% 4.49M 5.49 0.34% Share
80 RMNI Rimini Street, ...
4.10
+1.61% 1.24M +100.00% 4.3M 3.48 0.33% Share
81 TPB Turning Point B...
99.39
-0.45% 70.45K +10.93% 4.19M 60.03 0.32% Share
82 REAX The Real Broker...
4.47
-0.67% 1.02M +100.00% 4.15M 4.06 0.32% Share
83 ESTA Establishment L...
37.96
-0.99% 100.83K -48.02% 4.11M 45.25 0.31% Share
84 GEHC GE HealthCare T...
73.67
-2.22% 47.44K +100.00% 3.83M 80.71 0.29% Share
85 FIVN Five9, Inc.
25.13
-4.08% 138.25K +100.00% 3.75M 27.15 0.29% Share
86 VKTX Viking Therapeu...
40.24
-2.5% 138.75K +8.04% 3.35M 34.37 0.25% Share
87 INVE Identiv, Inc.
3.63
-1.89% 1.04M -0.22% 3.33M 11.57 0.25% Share
88 TMDX TransMedics Gro...
129.74
-1.74% 47.54K +100.00% 3.2M 67.28 0.24% Share
89 PACK Ranpak Holdings...
4.28
-4.47% 573.62K +100.00% 3.11M 5.42 0.24% Share
90 SMWB Similarweb Ltd.
8.37
-0.71% 370.19K +30.85% 3.06M 12.78 0.23% Share
91 NTRA Natera, Inc.
158.44
+0.47% 20.56K -46.73% 2.91M 79.03 0.22% Share
92 RELY Remitly Global,...
19.65
-1.6% 127.23K -81.67% 2.65M 19.69 0.20% Share
93 EVER EverQuote, Inc.
23.32
-3.24% 100.55K +100.00% 2.63M 26.19 0.20% Share
94 FORR Forrester Resea...
9.71
-4.75% 280.11K +11.39% 2.59M 20.94 0.20% Share
95 SMTC Semtech Corpora...
50.52
-5.11% 69.31K -89.61% 2.38M 58 0.18% Share
96 MSFT Microsoft Corpo...
522.28
+0.33% 5.8K -15.35% 2.18M 226.71 0.17% Share
97 GCO Genesco Inc.
26.49
-2.43% 88.73K -80.89% 1.88M 42.75 0.14% Share
98 BXC BlueLinx Holdin...
77.70
-1.3% 24.39K -30.43% 1.83M 96.77 0.14% Share
99 CWST Casella Waste S...
98.61
-0.9% 15.3K -0.22% 1.71M 68.33 0.13% Share
100 ORCL Oracle Corporat...
244.93
+0.31% 9.84K -87.25% 1.38M 141.1 0.10% Share
101 GOOG Alphabet Inc.
203.77
+0.36% 6.37K +25.66% 994.72K 116.54 0.08% Share
102 KIDS OrthoPediatrics...
19.16
-4.63% 34.55K -83.17% 851.04K 27.77 0.06% Share
103 SKY Skyline Champio...
73.49
-1.2% 8.97K -0.28% 850.09K 51.38 0.06% Share
104 VRT Vertiv Holdings...
132.46
-3.6% 8.23K -89.79% 594.5K 46.79 0.05% Share
105 PRIM Primoris Servic...
111.08
-2.05% 10.24K -90.45% 587.88K 49.95 0.04% Share
106 RDDT Reddit, Inc.
243.45
+3.70% 4.88K -96.29% 512.44K 130.67 0.04% Share
107 SPWH Sportsman's War...
2.90
-5.23% 237.33K -89.83% 235.93K 2.69 0.02% Share
108 PRTC PureTech Health...
17.50
+3.00% 11.88K +100.00% 235.09K 19.78 0.02% Share