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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
LNTH icon
1
Lantheus
LNTH
$6.82B
$72.7M 4.89%
812,630
+141,749
+21% +$13.8M
CLS icon
2
Celestica
CLS
$35.1B
$57.9M 3.89%
626,941
-104,005
-14% -$8.14M
SMTC icon
3
Semtech
SMTC
$11.7B
$41.3M 2.78%
667,211
+573,175
+610% +$30.3M
MOD icon
4
Modine Manufacturing
MOD
$12.8B
$38.1M 2.56%
328,899
+120,133
+58% +$15.5M
HNST icon
5
The Honest Company
HNST
$417M
$37.1M 2.5%
5,359,001
-2,309,349
-30% -$13.1M
KTOS icon
6
Kratos Defense & Security Solutions
KTOS
$8.88B
$35.6M 2.39%
1,348,077
-428,663
-24% -$11M
KRUS icon
7
Kura Sushi USA
KRUS
$537M
$33.8M 2.27%
373,253
+156,723
+72% +$14.7M
TTMI icon
8
TTM Technologies
TTMI
$13.6B
$32.2M 2.17%
1,301,342
+239,972
+23% +$5.44M
TLN
9
Talen Energy Corp
TLN
$17.2B
$31.1M 2.09%
154,381
-66,764
-30% -$13M
RDNT icon
10
RadNet
RDNT
$4.84B
$29.6M 1.99%
424,340
-67,018
-14% -$4.94M
ELF icon
11
e.l.f. Beauty
ELF
$4.56B
$28.9M 1.94%
229,998
+110,709
+93% +$13.3M
QTRX icon
12
Quanterix
QTRX
$173M
$27.5M 1.85%
2,587,824
+67,138
+3% +$817K
GENI icon
13
Genius Sports
GENI
$1.73B
$26.6M 1.79%
3,069,558
-101,333
-3% -$846K
SNAP icon
14
Snap
SNAP
$7.32B
$25.4M 1.71%
+2,362,784
New +$26.6M
SLM icon
15
SLM Corp
SLM
$4.57B
$24.8M 1.67%
900,519
+506,082
+128% +$12.5M
GTES icon
16
Gates Industrial Corporation Ltd.
GTES
$6.81B
$23M 1.55%
+1,117,238
New +$22.5M
PAYO icon
17
Payoneer
PAYO
$2.41B
$21.8M 1.47%
2,173,559
+1,106,343
+104% +$10.6M
RDDT icon
18
Reddit
RDDT
$32.5B
$21.5M 1.45%
131,622
+87,080
+196% +$10.8M
QNST icon
19
QuinStreet
QNST
$870M
$21.2M 1.42%
917,215
+115,522
+14% +$2.43M
CSTL icon
20
Castle Biosciences
CSTL
$749M
$20.7M 1.39%
776,579
-479,049
-38% -$14.6M
CLBT icon
21
Cellebrite
CLBT
$3.54B
$20.2M 1.36%
914,856
-309,164
-25% -$5.95M
ENVA icon
22
Enova International
ENVA
$5.91B
$20M 1.34%
208,351
+90,295
+76% +$8.6M
GCO icon
23
Genesco
GCO
$396M
$19.8M 1.33%
+464,265
New +$15.3M
VIRT icon
24
Virtu Financial
VIRT
$5.2B
$18.9M 1.27%
528,607
+137,335
+35% +$4.72M
BELFB
25
Bel Fuse Inc Class B
BELFB
$3.88B
$17.2M 1.16%
208,470
+87,612
+72% +$7.09M
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.