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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
+3.72%
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
$1.21B
AUM Growth
-$98.5M
Cap. Flow
-$79M
Cap. Flow %
-6.5%
Top 10 Hldgs %
27.39%
Holding
137
New
21
Increased
36
Reduced
59
Closed
20

Top Buys

Rank Stock Value
1
QTRX icon
Quanterix
QTRX
+$12.6M
2
PHAT icon
Phathom Pharmaceuticals
PHAT
+$11.6M
3
TTMI icon
TTM Technologies
TTMI
+$11.5M
4
ORN icon
Orion Group Holdings
ORN
+$11.2M
5
MRVI icon
Maravai LifeSciences
MRVI
+$10.1M

Top Sells

Rank Stock Value
1
BIO icon
Bio-Rad Laboratories Class A
BIO
+$19.2M
2
WKME
WalkMe Ltd. Ordinary Shares
WKME
+$19.1M
3
SG icon
Sweetgreen
SG
+$15.8M
4
UTHR icon
United Therapeutics
UTHR
+$14.8M
5
RCM
R1 RCM Inc. Common Stock
RCM
+$14.1M

Sector Composition

Rank Sector Weight
1 Technology 33.79%
2 Healthcare 21.3%
3 Industrials 12.49%
4 Consumer Discretionary 8.15%
5 Communication Services 6.48%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
LNTH icon
1
Lantheus
LNTH
$6.82B
$50.8M 4.18%
632,105
+106,363
+20% +$7.8M
CLS icon
2
Celestica
CLS
$35.1B
$43.2M 3.56%
753,116
-247,373
-25% -$12.5M
SMCI icon
3
Super Micro Computer
SMCI
$19.5B
$34.8M 2.86%
424,390
-26,410
-6% -$2.26M
ZETA icon
4
Zeta Global
ZETA
$4.77B
$33.9M 2.79%
1,919,190
-430,272
-18% -$6.31M
KTOS icon
5
Kratos Defense & Security Solutions
KTOS
$8.88B
$32.6M 2.69%
1,630,421
+45,730
+3% +$894K
ELF icon
6
e.l.f. Beauty
ELF
$4.56B
$29.4M 2.42%
139,649
-27,055
-16% -$4.81M
MOD icon
7
Modine Manufacturing
MOD
$12.8B
$27.9M 2.3%
278,825
+9,925
+4% +$953K
WDC icon
8
Western Digital
WDC
$179B
$27M 2.22%
470,984
-25,326
-5% -$1.4M
NVT icon
9
nVent Electric
NVT
$24.5B
$26.7M 2.2%
348,556
+63,360
+22% +$4.92M
CSTL icon
10
Castle Biosciences
CSTL
$749M
$26.4M 2.17%
1,210,952
+167,542
+16% +$3.73M
QTRX icon
11
Quanterix
QTRX
$173M
$25.3M 2.09%
1,918,030
+755,201
+65% +$12.6M
HNST icon
12
The Honest Company
HNST
$417M
$23.7M 1.95%
8,105,357
+616,654
+8% +$1.83M
TTMI icon
13
TTM Technologies
TTMI
$13.6B
$23.2M 1.91%
1,192,680
+674,737
+130% +$11.5M
BLFS icon
14
BioLife Solutions
BLFS
$1.46B
$21.5M 1.77%
1,004,228
+132,691
+15% +$2.58M
ACMR icon
15
ACM Research
ACMR
$5.83B
$19.7M 1.63%
855,835
+317,402
+59% +$8.03M
NTRA icon
16
Natera
NTRA
$37.5B
$18M 1.49%
166,577
-34,641
-17% -$3.52M
UTHR icon
17
United Therapeutics
UTHR
$26.3B
$17.5M 1.44%
54,845
-56,077
-51% -$14.8M
KMPR icon
18
Kemper
KMPR
$1.7B
$17M 1.4%
286,316
+140,145
+96% +$8.22M
MU icon
19
Micron Technology
MU
$1.04T
$15.9M 1.31%
121,103
-38,641
-24% -$4.87M
GENI icon
20
Genius Sports
GENI
$1.73B
$15.8M 1.3%
2,898,346
+694,297
+32% +$3.71M
TGLS icon
21
Tecnoglass
TGLS
$2.01B
$14.7M 1.21%
293,587
-72,641
-20% -$3.79M
AIG icon
22
American International
AIG
$41.9B
$14.5M 1.19%
195,168
+67,991
+53% +$5.2M
IIIV icon
23
i3 Verticals
IIIV
$395M
$13.9M 1.14%
629,151
-296,031
-32% -$6.24M
SIMO icon
24
Silicon Motion
SIMO
$9.19B
$13.8M 1.14%
170,246
+10,283
+6% +$803K
FOUR icon
25
Shift4
FOUR
$3.84B
$13.8M 1.13%
187,500
-51,809
-22% -$3.43M
1
2 3 4 5

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Portolan Capital Management's Q2 2024 Portfolio in Review

As of Q2 2024, Portolan Capital Management held 137 positions worth $1.21B, down 7.5% from $1.31B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

Portolan Capital Management withdrew a net $79M in Q2 2024, closing 20 positions and reducing 59 holdings. Its most notable exit was R1 RCM Inc. Common Stock, an estimated $14.1M position sold in full.

By sector, the portfolio is most concentrated in Technology at 34% of assets, down from 35% a quarter earlier, followed by Healthcare and Industrials.

Against the trend, Portolan Capital Management opened a new position in Phathom Pharmaceuticals worth $11.6M.

  • Portolan Capital Management's largest Q2 2024 buy was Phathom Pharmaceuticals: 1,130,089 shares worth $11.6M.
  • Portolan Capital Management added most to Quanterix in Q2 2024, an estimated $12.6M increase.
  • Portolan Capital Management's biggest Q2 2024 reduction was Bio-Rad Laboratories Class A, cutting an estimated $19.2M.
  • Portolan Capital Management fully exited R1 RCM Inc. Common Stock in Q2 2024, selling an estimated $14.1M.
  • Portolan Capital Management's ten largest holdings make up 27% of its $1.21B portfolio in Q2 2024.
  • Portolan Capital Management opened 21 new positions and closed 20 in Q2 2024.
  • Portolan Capital Management's portfolio value fell 7.5% quarter-over-quarter to $1.21B.

Based on Portolan Capital Management's 13F filing for Q2 2024, filed 14 Aug 2024.