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Portolan Capital Management Portfolio holdings

AUM $1.88B
1-Year Est. Return 115.74%
This Fund
S&P 500
This Quarter Est. Return
+20.03%
1 Year Est. Return
+115.74%
3 Year Est. Return
+581.85%
5 Year Est. Return
+1,047.01%
10 Year Est. Return
+13,266.68%
AUM
$1.49B
AUM Growth
+$107M
Cap. Flow
-$23.2M
Cap. Flow %
-1.56%
Top 10 Hldgs %
27.54%
Holding
166
New
37
Increased
47
Reduced
47
Closed
35

Top Buys

Rank Stock Value
1
SMTC icon
Semtech
SMTC
+$30.3M
2
SNAP icon
Snap
SNAP
+$26.6M
3
GTES icon
Gates Industrial Corporation Ltd.
GTES
+$22.5M
4
MOD icon
Modine Manufacturing
MOD
+$15.5M
5
GCO icon
Genesco
GCO
+$15.3M

Top Sells

Rank Stock Value
1
PHAT icon
Phathom Pharmaceuticals
PHAT
+$30.7M
2
GDS icon
GDS Holdings
GDS
+$26.6M
3
CDMO
Avid Bioservices, Inc. Common Stock
CDMO
+$18.8M
4
ZETA icon
Zeta Global
ZETA
+$18.7M
5
ACMR icon
ACM Research
ACMR
+$18.7M

Sector Composition

Rank Sector Weight
1 Technology 26.93%
2 Healthcare 16.82%
3 Consumer Discretionary 16.65%
4 Industrials 9.86%
5 Financials 9.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
LIND icon
76
Lindblad Expeditions
LIND
$2.22B
$6.46M 0.43%
544,273
+284,930
+110% +$3.27M
SPWH icon
77
Sportsman's Warehouse
SPWH
$46M
$6.23M 0.42%
2,334,248
+1,387,935
+147% +$3.48M
HZO icon
78
MarineMax
HZO
$788M
$6.14M 0.41%
211,960
-107,616
-34% -$3.3M
NTRA icon
79
Natera
NTRA
$46.4B
$6.11M 0.41%
38,594
-45,086
-54% -$6.57M
STNG icon
80
Scorpio Tankers
STNG
$3.81B
$5.89M 0.4%
+118,557
New +$6.76M
MYRG icon
81
MYR Group
MYRG
$5.25B
$5.7M 0.38%
+38,341
New +$5.36M
CDMO
82
DELISTED
Avid Bioservices, Inc. Common Stock
CDMO
$5.62M 0.38%
455,038
-1,638,953
-78% -$18.8M
ALTG icon
83
Alta Equipment Group
ALTG
$245M
$5.56M 0.37%
+850,309
New +$5.93M
KOS icon
84
Kosmos Energy
KOS
$1.48B
$5.53M 0.37%
+1,617,506
New +$6.15M
NTGR icon
85
NETGEAR
NTGR
$635M
$5.36M 0.36%
+192,214
New +$4.52M
HCAT icon
86
Health Catalyst
HCAT
$128M
$5.3M 0.36%
749,029
+85,427
+13% +$680K
OTLY
87
Oatly Group
OTLY
$438M
$5.25M 0.35%
395,786
+158,490
+67% +$2.34M
BV icon
88
BrightView Holdings
BV
$1.07B
$5.22M 0.35%
326,674
-293,841
-47% -$4.89M
BASE
89
DELISTED
Couchbase
BASE
$5.17M 0.35%
331,561
-543,234
-62% -$9.27M
VKTX icon
90
Viking Therapeutics
VKTX
$4B
$5.17M 0.35%
128,420
+2,658
+2% +$152K
UTHR icon
91
United Therapeutics
UTHR
$23.1B
$5.03M 0.34%
14,249
-16,257
-53% -$5.98M
AMPH icon
92
Amphastar Pharmaceuticals
AMPH
$916M
$4.87M 0.33%
131,123
-196,641
-60% -$8.99M
KIDS icon
93
OrthoPediatrics
KIDS
$595M
$4.76M 0.32%
205,365
-102,734
-33% -$2.57M
MXCT icon
94
MaxCyte
MXCT
$126M
$4.72M 0.32%
1,135,613
-167,825
-13% -$634K
NVGS icon
95
Navigator Holdings
NVGS
$1.28B
$4.71M 0.32%
306,769
+6,361
+2% +$100K
GOOS
96
Canada Goose Holdings
GOOS
$856M
$4.4M 0.3%
+439,007
New +$4.48M
CACI icon
97
CACI
CACI
$14.2B
$4.32M 0.29%
10,701
+2,225
+26% +$1.08M
DY icon
98
Dycom Industries
DY
$12.3B
$4.05M 0.27%
+23,248
New +$4.3M
SMWB icon
99
Similarweb
SMWB
$658M
$4.01M 0.27%
+282,903
New +$3.13M
FORR icon
100
Forrester Research
FORR
$224M
$3.94M 0.27%
251,473
+44,874
+22% +$723K
2 3
4
5 6

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Portolan Capital Management's Q4 2024 Portfolio in Review

As of Q4 2024, Portolan Capital Management held 166 positions worth $1.49B, up 7.8% from $1.38B the previous quarter. Its ten largest holdings account for 28% of the portfolio.

Portolan Capital Management's Q4 2024 filing shows 37 new, 47 increased, 47 reduced and 35 closed positions. Its largest new stake was Snap: 2,362,784 shares worth $25.4M. The largest sale was Phathom Pharmaceuticals, an estimated $30.7M.

By sector, the portfolio is most concentrated in Technology at 27% of assets, up from 26% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • Portolan Capital Management's largest Q4 2024 buy was Snap: 2,362,784 shares worth $25.4M.
  • Portolan Capital Management added most to Semtech in Q4 2024, an estimated $30.3M increase.
  • Portolan Capital Management's biggest Q4 2024 reduction was Avid Bioservices, Inc. Common Stock, cutting an estimated $18.8M.
  • Portolan Capital Management fully exited Phathom Pharmaceuticals in Q4 2024, selling an estimated $30.7M.
  • Portolan Capital Management's ten largest holdings make up 28% of its $1.49B portfolio in Q4 2024.
  • Portolan Capital Management opened 37 new positions and closed 35 in Q4 2024.
  • Portolan Capital Management's portfolio value rose 7.8% quarter-over-quarter to $1.49B.

Based on Portolan Capital Management's 13F filing for Q4 2024, filed 13 Feb 2025.