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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
+8.02%
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
$1.87B
AUM Growth
+$18.4M
Cap. Flow
-$10.9M
Cap. Flow %
-0.58%
Top 10 Hldgs %
26.36%
Holding
176
New
57
Increased
34
Reduced
55
Closed
21

Top Buys

Rank Stock Value
1
AKAM icon
Akamai
AKAM
+$43.1M
2
BIDU icon
Baidu
BIDU
+$32.2M
3
FAF icon
First American
FAF
+$20.1M
4
FOUR icon
Shift4
FOUR
+$19.7M
5
REAX icon
Real Brokerage
REAX
+$19.4M

Top Sells

Rank Stock Value
1
DBRG icon
DigitalBridge
DBRG
+$55.8M
2
ELF icon
e.l.f. Beauty
ELF
+$29.1M
3
KTOS icon
Kratos Defense & Security Solutions
KTOS
+$24.7M
4
CLS icon
Celestica
CLS
+$23.9M
5
POWL icon
Powell Industries
POWL
+$23.3M

Sector Composition

Rank Sector Weight
1 Technology 39.09%
2 Healthcare 17.39%
3 Consumer Discretionary 11.39%
4 Communication Services 7.96%
5 Financials 7.32%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
FSLR icon
26
First Solar
FSLR
$26.9B
$20.6M 1.1%
78,761
-4,437
-5% -$1.12M
FAF icon
27
First American
FAF
$7.58B
$19.7M 1.06%
+320,670
New +$20.1M
PRCH icon
28
Porch Group
PRCH
$1.8B
$19M 1.02%
2,083,055
+548,752
+36% +$6.61M
AVAV icon
29
AeroVironment
AVAV
$9.45B
$18.4M 0.98%
75,958
-71,971
-49% -$22.6M
DOMO icon
30
Domo
DOMO
$184M
$18.2M 0.98%
2,158,770
-525,983
-20% -$6.18M
UTHR icon
31
United Therapeutics
UTHR
$23.1B
$17.9M 0.96%
36,753
+18,677
+103% +$8.7M
TSEM icon
32
Tower Semiconductor
TSEM
$28.5B
$17.4M 0.93%
148,525
-178,780
-55% -$17.2M
IIIV icon
33
i3 Verticals
IIIV
$342M
$16.9M 0.91%
671,987
-75,669
-10% -$2.13M
MAMA icon
34
Mama's Creations
MAMA
$833M
$16.8M 0.9%
1,245,767
-789,161
-39% -$9.07M
SPHR icon
35
Sphere Entertainment
SPHR
$5.73B
$16.7M 0.89%
175,646
-32,772
-16% -$2.5M
ALNT icon
36
Allient
ALNT
$1.92B
$16.2M 0.87%
301,888
+44,235
+17% +$2.31M
JBL icon
37
Jabil
JBL
$35.8B
$16.1M 0.86%
+70,665
New +$15.1M
MRX
38
Marex Group Limited Ordinary Shares
MRX
$4.37B
$16.1M 0.86%
+418,745
New +$14.2M
ENVA icon
39
Enova International
ENVA
$6.29B
$15.4M 0.82%
97,847
+30
+0% +$3.9K
BIIB icon
40
Biogen
BIIB
$30.7B
$15M 0.8%
+84,990
New +$13.9M
TECH icon
41
Bio-Techne
TECH
$11.3B
$14.6M 0.78%
+249,070
New +$15.1M
FCX icon
42
Freeport-McMoran
FCX
$97.5B
$14.6M 0.78%
+288,124
New +$12.5M
ELF icon
43
e.l.f. Beauty
ELF
$5.81B
$14.6M 0.78%
192,322
-295,203
-61% -$29.1M
CDNA icon
44
CareDx
CDNA
$2.42B
$14.3M 0.77%
758,775
-174,757
-19% -$2.93M
UPWK icon
45
Upwork
UPWK
$1.19B
$14.3M 0.76%
719,644
+325,715
+83% +$5.97M
MGA icon
46
Magna International
MGA
$18.8B
$13.6M 0.73%
+255,481
New +$12.5M
CIEN icon
47
Ciena
CIEN
$58.4B
$13.2M 0.71%
56,481
-32,305
-36% -$6.27M
PRIM icon
48
Primoris Services
PRIM
$4.45B
$13.1M 0.7%
105,716
-43,525
-29% -$5.68M
NOVT icon
49
Novanta
NOVT
$6.29B
$12.7M 0.68%
+107,095
New +$12.2M
DBRG icon
50
DigitalBridge
DBRG
$2.95B
$12.7M 0.68%
824,946
-4,643,280
-85% -$55.8M
1
2
3 4 5

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Portolan Capital Management's Q4 2025 Portfolio in Review

As of Q4 2025, Portolan Capital Management held 176 positions worth $1.87B, up 1% from $1.85B the previous quarter. Its ten largest holdings account for 26% of the portfolio.

Portolan Capital Management's Q4 2025 filing shows 57 new, 34 increased, 55 reduced and 21 closed positions. Its largest new stake was Akamai: 524,321 shares worth $45.7M. The largest sale was DigitalBridge, an estimated $55.8M.

By sector, the portfolio is most concentrated in Technology at 39% of assets, up from 36% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • Portolan Capital Management's largest Q4 2025 buy was Akamai: 524,321 shares worth $45.7M.
  • Portolan Capital Management added most to Baidu in Q4 2025, an estimated $32.2M increase.
  • Portolan Capital Management's biggest Q4 2025 reduction was DigitalBridge, cutting an estimated $55.8M.
  • Portolan Capital Management fully exited Wolverine World Wide in Q4 2025, selling an estimated $21.9M.
  • Portolan Capital Management's ten largest holdings make up 26% of its $1.87B portfolio in Q4 2025.
  • Portolan Capital Management opened 57 new positions and closed 21 in Q4 2025.
  • Portolan Capital Management's portfolio value rose 1% quarter-over-quarter to $1.87B.

Based on Portolan Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.