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Portolan Capital Management Portfolio holdings

AUM $2.67B
1-Year Est. Return 169.09%
This Fund
S&P 500
This Quarter Est. Return
+69.41%
1 Year Est. Return
+169.09%
3 Year Est. Return
+737.83%
5 Year Est. Return
+1,497.12%
10 Year Est. Return
+21,256.61%
AUM
$2.67B
AUM Growth
+$792M
Cap. Flow
+$21.4M
Cap. Flow %
0.8%
Top 10 Hldgs %
29.02%
Holding
180
New
36
Increased
49
Reduced
59
Closed
32

Top Buys

Rank Stock Value
1
VIRT icon
Virtu Financial
VIRT
+$48.9M
2
FOUR icon
Shift4
FOUR
+$38.9M
3
QLYS icon
Qualys
QLYS
+$28.6M
4
SRAD icon
Sportradar
SRAD
+$26.5M
5
PENG
Penguin Solutions Inc
PENG
+$24.8M

Top Sells

Rank Stock Value
1
PBF icon
PBF Energy
PBF
+$38.1M
2
TTMI icon
TTM Technologies
TTMI
+$35.4M
3
CRGY icon
Crescent Energy
CRGY
+$35.1M
4
BIDU icon
Baidu
BIDU
+$33.5M
5
FN icon
Fabrinet
FN
+$31.2M

Sector Composition

Rank Sector Weight
1 Technology 44.68%
2 Consumer Discretionary 12.13%
3 Industrials 12.05%
4 Healthcare 11.19%
5 Financials 9.77%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CNR
176
Core Natural Resources Inc
CNR
$4.94B
– –
-237,036
Closed -$24.8M
CRCL
177
Circle Internet Group
CRCL
$25.9B
– –
-213,796
Closed -$20.4M
MIAX
178
Miami International Holdings
MIAX
$4.21B
– –
-128,819
Closed -$5.01M
XZO
179
Exzeo Group
XZO
$1.49B
– –
-209,885
Closed -$3.08M
FPS
180
Forgent Power Solutions
FPS
$8.15B
– –
-117,933
Closed -$3.45M
4 5 6 7
8

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ORIO
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BWFA
Baltimore-Washington Financial Advisors Columbia, Maryland $2.67B AUM 19.65% 1-Year Est. Return
RIL
Rothschild Investment LLC Chicago, Illinois $2.68B AUM 34.39% 1-Year Est. Return
MMC
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TCOV
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Skandinaviska Enskilda Banken (SEB)
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UPS
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Portolan Capital Management's Q2 2026 Portfolio in Review

As of Q2 2026, Portolan Capital Management held 180 positions worth $2.67B, up 42% from $1.88B the previous quarter. Its ten largest holdings account for 29% of the portfolio.

Portolan Capital Management's Q2 2026 filing shows 36 new, 49 increased, 59 reduced and 32 closed positions. Its largest new stake was Sportradar: 1,819,949 shares worth $27.2M. The largest sale was PBF Energy, an estimated $38.1M.

By sector, the portfolio is most concentrated in Technology at 45% of assets, up from 34% a quarter earlier, followed by Consumer Discretionary and Industrials.

  • Portolan Capital Management's largest Q2 2026 buy was Sportradar: 1,819,949 shares worth $27.2M.
  • Portolan Capital Management added most to Virtu Financial in Q2 2026, an estimated $48.9M increase.
  • Portolan Capital Management's biggest Q2 2026 reduction was TTM Technologies, cutting an estimated $35.4M.
  • Portolan Capital Management fully exited PBF Energy in Q2 2026, selling an estimated $38.1M.
  • Portolan Capital Management's ten largest holdings make up 29% of its $2.67B portfolio in Q2 2026.
  • Portolan Capital Management opened 36 new positions and closed 32 in Q2 2026.
  • Portolan Capital Management's portfolio value rose 42% quarter-over-quarter to $2.67B.

Based on Portolan Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.