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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
BIO icon
51
Bio-Rad Laboratories Class A
BIO
$9.42B
$10M 0.68%
30,586
+8,686
+40% +$2.95M
SG icon
52
Sweetgreen
SG
$642M
$9.84M 0.66%
307,001
-248,568
-45% -$9.26M
UBS icon
53
UBS Group
UBS
$176B
$9.75M 0.66%
+321,566
New +$10.2M
ACI icon
54
Albertsons Companies
ACI
$5.83B
$9.62M 0.65%
+489,980
New +$9.29M
MLR icon
55
Miller Industries
MLR
$619M
$9.37M 0.63%
+143,304
New +$9.76M
PBPB
56
DELISTED
Potbelly
PBPB
$9.29M 0.62%
986,277
+83,748
+9% +$760K
VRT icon
57
Vertiv
VRT
$105B
$9.16M 0.62%
80,631
-58,246
-42% -$6.92M
TGLS icon
58
Tecnoglass Holdings Inc.
TGLS
$1.96B
$9.05M 0.61%
114,033
-176,847
-61% -$13.5M
ESTA icon
59
Establishment Labs
ESTA
$2.28B
$8.94M 0.6%
193,991
+137,458
+243% +$5.99M
DBRG icon
60
DigitalBridge
DBRG
$2.95B
$8.93M 0.6%
791,932
+557,694
+238% +$7.5M
CROX icon
61
Crocs
CROX
$6.55B
$8.92M 0.6%
81,430
-10,346
-11% -$1.2M
RPRX icon
62
Royalty Pharma
RPRX
$25.3B
$8.78M 0.59%
344,185
+173,721
+102% +$4.61M
META icon
63
Meta Platforms (Facebook)
META
$1.51T
$8.61M 0.58%
14,707
-1,273
-8% -$747K
BILL icon
64
BILL Holdings
BILL
$4.78B
$8.36M 0.56%
+98,676
New +$7.36M
PRIM icon
65
Primoris Services
PRIM
$4.45B
$8.19M 0.55%
107,242
-55,848
-34% -$4.08M
TTWO icon
66
Take-Two Interactive
TTWO
$46.1B
$7.82M 0.53%
42,496
-68
-0.2% -$11.8K
WDC icon
67
Western Digital
WDC
$150B
$7.71M 0.52%
170,991
-7,914
-4% -$398K
OSG
68
Octave Specialty Group
OSG
$222M
$7.46M 0.5%
+589,437
New +$7.11M
NOG icon
69
Northern Oil and Gas
NOG
$2.35B
$7.32M 0.49%
197,034
-110,206
-36% -$4.32M
ULTA icon
70
Ulta Beauty
ULTA
$24.3B
$7.27M 0.49%
+16,708
New +$6.47M
CTOS icon
71
Custom Truck One Source
CTOS
$2.37B
$6.98M 0.47%
1,451,573
+877,273
+153% +$3.97M
MRX
72
Marex Group Limited Ordinary Shares
MRX
$4.37B
$6.97M 0.47%
+223,614
New +$6.26M
WEAV icon
73
Weave Communications
WEAV
$423M
$6.9M 0.46%
+433,495
New +$6.1M
CADL icon
74
Candel Therapeutics
CADL
$776M
$6.54M 0.44%
+753,745
New +$4.45M
MAMA icon
75
Mama's Creations
MAMA
$833M
$6.52M 0.44%
818,504
-135,125
-14% -$1.12M
1 2
3
4 5

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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.