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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
+28.36%
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
$1.85B
AUM Growth
+$253M
Cap. Flow
-$62.9M
Cap. Flow %
-3.41%
Top 10 Hldgs %
31.58%
Holding
159
New
41
Increased
35
Reduced
42
Closed
40

Top Buys

Rank Stock Value
1
DBRG icon
DigitalBridge
DBRG
+$26.7M
2
DOMO icon
Domo
DOMO
+$24.4M
3
CLBT icon
Cellebrite
CLBT
+$22.1M
4
WWW icon
Wolverine World Wide
WWW
+$21M
5
LASR icon
nLIGHT
LASR
+$19.1M

Top Sells

Rank Stock Value
1
CLS icon
Celestica
CLS
+$60.1M
2
KTOS icon
Kratos Defense & Security Solutions
KTOS
+$46.9M
3
SLM icon
SLM Corp
SLM
+$23.3M
4
FOUR icon
Shift4
FOUR
+$22.9M
5
PBPB
Potbelly
PBPB
+$20.4M

Sector Composition

Rank Sector Weight
1 Technology 36.26%
2 Industrials 16.27%
3 Consumer Discretionary 11.86%
4 Healthcare 9.33%
5 Financials 7.51%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CROX icon
126
Crocs
CROX
$6.55B
– –
-42,750
Closed -$4.33M
CWH icon
127
Camping World
CWH
$653M
– –
-21,050
Closed -$362K
DDI
128
DoubleDown Interactive
DDI
$588M
– –
-275,903
Closed -$2.64M
DECK icon
129
Deckers Outdoor
DECK
$13.3B
– –
-39,681
Closed -$4.09M
DXCM icon
130
DexCom
DXCM
$32B
– –
-31,169
Closed -$2.72M
FIVN icon
131
FIVE9
FIVN
$2.54B
– –
-187,711
Closed -$4.97M
FLR icon
132
Fluor
FLR
$7.96B
– –
-104,810
Closed -$5.37M
FRPT icon
133
Freshpet
FRPT
$3.22B
– –
-56,299
Closed -$3.83M
GPOR icon
134
Gulfport Energy Corp
GPOR
$2.88B
– –
-43,376
Closed -$8.73M
GRAB icon
135
Grab
GRAB
$14.9B
– –
-1,354,131
Closed -$6.81M
HCAT icon
136
Health Catalyst
HCAT
$128M
– –
-1,980,409
Closed -$7.47M
HII icon
137
Huntington Ingalls Industries
HII
$12.8B
– –
-41,501
Closed -$10M
INVE icon
138
Identive
INVE
$61.9M
– –
-594,006
Closed -$1.94M
KMPR icon
139
Kemper
KMPR
$1.68B
– –
-109,417
Closed -$7.06M
LOCO icon
140
El Pollo Loco
LOCO
$462M
– –
-751,012
Closed -$8.27M
METC icon
141
Ramaco Resources Class A
METC
$649M
– –
-1,419,285
Closed -$18.6M
MYGN icon
142
Myriad Genetics
MYGN
$312M
– –
-1,163,400
Closed -$6.18M
NOG icon
143
Northern Oil and Gas
NOG
$2.35B
– –
-10,777
Closed -$306K
NTGR icon
144
NETGEAR
NTGR
$635M
– –
-169,294
Closed -$4.92M
OPRT icon
145
Oportun Financial
OPRT
$372M
– –
-1,619,470
Closed -$11.6M
PAYO icon
146
Payoneer
PAYO
$2.41B
– –
-1,757,334
Closed -$12M
PBPB
147
DELISTED
Potbelly
PBPB
– –
-1,667,702
Closed -$20.4M
PRTC
148
DELISTED
PureTech Health
PRTC
– –
-27,795
Closed -$479K
PSN icon
149
Parsons
PSN
$5.08B
– –
-51,707
Closed -$3.71M
PWP icon
150
Perella Weinberg Partners
PWP
$1.3B
– –
-352,886
Closed -$6.85M
3 4 5
6
7

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Portolan Capital Management's Q3 2025 Portfolio in Review

As of Q3 2025, Portolan Capital Management held 159 positions worth $1.85B, up 16% from $1.59B the previous quarter. Its ten largest holdings account for 32% of the portfolio.

Portolan Capital Management withdrew a net $62.9M in Q3 2025, closing 40 positions and reducing 42 holdings. Its most notable exit was SLM Corp, an estimated $23.3M position sold in full.

By sector, the portfolio is most concentrated in Technology at 36% of assets, up from 27% a quarter earlier, followed by Industrials and Consumer Discretionary.

Against the trend, Portolan Capital Management opened a new position in Wolverine World Wide worth $21.9M.

  • Portolan Capital Management's largest Q3 2025 buy was Wolverine World Wide: 796,627 shares worth $21.9M.
  • Portolan Capital Management added most to DigitalBridge in Q3 2025, an estimated $26.7M increase.
  • Portolan Capital Management's biggest Q3 2025 reduction was Celestica, cutting an estimated $60.1M.
  • Portolan Capital Management fully exited SLM Corp in Q3 2025, selling an estimated $23.3M.
  • Portolan Capital Management's ten largest holdings make up 32% of its $1.85B portfolio in Q3 2025.
  • Portolan Capital Management opened 41 new positions and closed 40 in Q3 2025.
  • Portolan Capital Management's portfolio value rose 16% quarter-over-quarter to $1.85B.

Based on Portolan Capital Management's 13F filing for Q3 2025, filed 13 Nov 2025.