Portolan Capital Management, LLC Incresed Positions in Q3 2025

Portolan Capital Management, LLC

  • $1.6 Billion
  • Q3 2025
Stock Shares change Price Range Shares Held Trade History
MOD
Modine Manufacturing CO

Consumer Cyclical
110K
+ 22.37%
$90.02 - $158.57 $9.92M - $17.5M
602K $85.6M
SMTC
Semtech Corp

Technology
290K
+ 76.47%
$42.59 - $71.45 $12.3M - $20.7M
669K $47.8M
CLBT
Cellebrite Di Ltd.

Technology
1.41M
+ 139.13%
$13.52 - $18.97 $19M - $26.7M
2.42M $44.8M
DOMO
Domo, Inc.

Technology
1.58M
+ 142.33%
$13.44 - $18.2 $21.2M - $28.7M
2.68M $42.5M
TTMI
Ttm Technologies Inc

Technology
64.7K
+ 5.75%
$40.06 - $57.75 $2.59M - $3.73M
1.19M $68.5M
TSEM
Tower Semiconductor LTD

Technology
218K
+ 198.55%
$42.42 - $72.3 $9.23M - $15.7M
327K $23.7M
REAX
Real Brokerage Inc

Real Estate
3.78M
+ 190.51%
$3.84 - $5.38 $14.5M - $20.4M
5.77M $24.1M
GOOS
Canada Goose Holdings Inc.

Consumer Cyclical
687K
+ 46.15%
$10.95 - $15.24 $7.52M - $10.5M
2.17M $30M
PRIM
Primoris Services Corp

Industrials
49.8K
+ 50.07%
$79.61 - $137.33 $3.96M - $6.84M
149K $20.5M
BELFB
Bel Fuse Inc.

Technology
61.2K
+ 97.94%
$95.52 - $150.97 $5.85M - $9.25M
124K $17.5M
BAND
Bandwidth Inc.

Technology
400K
+ 115.82%
$13.1 - $18.29 $5.24M - $7.32M
746K $12.4M
OPRA
Opera LTD

Communication Services
248K
+ 28.26%
$15.4 - $20.64 $3.81M - $5.11M
1.12M $23.2M
GDOT
Green Dot Corp

Financial Services
214K
+ 15.28%
$9.64 - $15.25 $2.06M - $3.27M
1.62M $21.7M
ELF
E.L.F. Beauty, Inc.

Consumer Defensive
20.7K
+ 4.43%
$99.92 - $146.67 $2.07M - $3.03M
488K $64.6M
CELH
Celsius Holdings, Inc.

Consumer Defensive
91.2K
+ 125.14%
$42.74 - $62.88 $3.9M - $5.73M
164K $9.43M
SMWB
Similarweb Ltd.

Communication Services
451K
+ 62.04%
$6.87 - $10.4 $3.1M - $4.69M
1.18M $11M
FN
Fabrinet

Technology
9.35K
+ 48.18%
$277.04 - $389.47 $2.59M - $3.64M
28.8K $10.5M
CSTL
Castle Biosciences Inc

Healthcare
25.5K
+ 1.71%
$14.65 - $24.65 $374K - $630K
1.52M $34.5M
ZGN
Ermenegildo Zegna N.V.

Consumer Cyclical
185K
+ 15.64%
$7.71 - $9.68 $1.43M - $1.79M
1.37M $12.9M
OLPX
Olaplex Holdings, Inc.

Consumer Cyclical
2.07M
+ 132.61%
$1.29 - $1.68 $2.67M - $3.48M
3.64M $4.76M
DOUG
Douglas Elliman Inc.

Real Estate
522K
+ 28.49%
$2.12 - $3.11 $1.11M - $1.62M
2.35M $6.73M
AAOI
Applied Optoelectronics, Inc.

Technology
90.9K
+ 19.96%
$20.86 - $30.54 $1.9M - $2.78M
546K $13.9M
HZO
Marinemax Inc

Consumer Cyclical
84.7K
+ 27.51%
$22.19 - $28.07 $1.88M - $2.38M
393K $9.95M
TGEN
Tecogen Inc.

Industrials
130K
+ 27.97%
$5.78 - $9.68 $753K - $1.26M
596K $5.33M
VRT
Vertiv Holdings CO

Industrials
23.9K
+ 31.13%
N/A
101K $8.72M
CDNA
Care Dx, Inc.

Healthcare
304K
+ 48.19%
$11.57 - $20.63 $3.51M - $6.26M
934K $13.6M
ESTA
Establishment Labs Holdings Inc.

Healthcare
30.7K
+ 24.68%
$33.62 - $46.11 $1.03M - $1.42M
155K $6.36M
Forrester Resh Inc
162K
+ 46.1%
N/A
514K $0
Talen Energy Corp
29.1K
+ 44.41%
N/A
94.7K $0
Digitalbridge Group Inc
2.39M
+ 77.42%
N/A
5.47M $0
Super Micro Computer Inc
198K
+ 200.71%
N/A
296K $0
QTRX
Quanterix Corp

Healthcare
626K
+ 17.23%
$4.29 - $6.98 $2.69M - $4.37M
4.26M $23.1M
LNTH
Lantheus Holdings, Inc.

Healthcare
42.7K
+ 16.79%
$50.11 - $83.83 $2.14M - $3.58M
297K $15.2M
HNST
Honest Company, Inc.

Consumer Cyclical
711K
+ 11.43%
$3.66 - $5.15 $2.6M - $3.66M
6.93M $25.5M
Activity Summary
Buys All Purchases 76 New Holdings 41 Increased Positions 35 Sells All Sells 42 Reductions 42 Sold out 0 Options Calls 0 Puts 0
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