2026 Q2 Portfolio Activity
In 2026 Q2, Portolan Capital Management, LLC maintained a portfolio of 180 distinct positions. The most significant new addition was PENGUIN SOLUTIONS INC, now representing 1.55% of the total fund value. They heavily accumulated shares in VIRTU FINL INC, increasing the position by 76.8%. Conversely, Portolan Capital Management, LLC completely exited their position in PBF ENERGY INC.
Position History
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Total Positions
180
Quarter
2026 Q2
Top Holding
VPG (5.7%)
Top 10 Concentration
29.0%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 180
Portolan Capital Management, LLC Full Holdings List — 2026 Q2
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
VPG
VISHAY PRECISIO...
|
Technology | 5.66% | 2.36% |
#1
5
Prev: #6
|
4.8 |
—
|
-11,701 | -1.1% |
P
S
|
1,008,167 | $151,134,315 | 2024 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
VIRT
VIRTU FINL INC
|
Financial Services | 4.78% | 2.84% |
#2
2
Prev: #4
|
6.4 |
—
|
930,328 | 76.8% |
P
S
|
2,142,215 | $127,611,748 | 2024 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TTMI
TTM TECHNOLOGIE...
|
Technology | 3.56% | 3.77% |
#3
1
Prev: #2
|
2.4 |
—
|
-219,656 | -30.2% |
P
S
|
507,838 | $94,975,863 | 2024 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
MOD
MODINE MFG CO
|
Consumer Cyclical | 3.14% | 4.75% |
#4
3
Prev: #1
|
1.8 |
—
|
-98,409 | -23.9% |
P
S
|
313,683 | $83,759,635 | 2009 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
QLYS
QUALYS INC
|
Technology | 2.73% | 1.12% |
#5
23
Prev: #28
|
4.6 |
—
|
290,779 | 121.7% |
P
S
|
529,807 | $72,843,164 | 2013 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
FOUR
SHIFT4 PMTS INC
|
Technology | 2.03% | 0.50% |
#6
54
Prev: #60
|
3.8 |
—
|
899,832 | 419.9% |
P
S
|
1,114,116 | $54,190,602 | 2023 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
MEC
MAYVILLE ENGR C...
|
Industrials | 1.82% | 0.78% |
#7
36
Prev: #43
|
3.7 |
—
|
478,120 | 58.2% |
P
S
|
1,299,256 | $48,670,130 | 2025 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ENVA
ENOVA INTL INC
|
Financial Services | 1.79% | 0.58% |
#8
42
Prev: #50
|
3.7 |
—
|
117,872 | 145.7% |
P
S
|
198,795 | $47,855,920 | 2020 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
SMTC
SEMTECH CORP
|
Technology | 1.79% | 1.36% |
#9
14
Prev: #23
|
1.2 |
—
|
-37,708 | -11.3% |
P
S
|
294,619 | $47,684,085 | 2024 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CLS
CELESTICA INC
|
Technology | 1.73% | 2.97% |
#10
7
Prev: #3
|
0.7 |
—
|
-71,007 | -35.9% |
P
S
|
126,856 | $46,277,069 | 2024 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
UTHR
UNITED THERAPEU...
|
Healthcare | 1.65% | 2.00% |
#11
Prev: #11
|
3.2 |
—
|
18,083 | 28.5% |
P
S
|
81,518 | $44,168,898 | 2015 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
GENI
GENIUS SPORTS L...
|
Communication Services | 1.59% | 0.66% |
#12
34
Prev: #46
|
3.6 |
—
|
4,234,791 | 151.7% |
P
S
|
7,025,809 | $42,576,403 | 2022 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
POWL
POWELL INDS INC
|
Industrials | 1.56% | 2.18% |
#13
5
Prev: #8
|
3.6 |
—
|
69,801 | 92.0% |
P
S
|
145,631 | $41,702,893 | 2006 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
PENG
PENGUIN SOLUTIO...
|
Technology | 1.55% | — |
#14
Prev: #—
|
4.1 |
—
|
546,173 | — |
NEW
|
546,173 | $41,514,610 | 2023 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
DAVE
DAVE INC
|
Technology | 1.47% | 0.98% |
#15
20
Prev: #35
|
1.1 |
—
|
-104 | -0.1% |
P
S
|
105,338 | $39,247,885 | 2008 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
FLEX
FLEX LTD
|
Technology | 1.39% | 1.54% |
#16
3
Prev: #19
|
0.6 |
—
|
-214,101 | -48.3% |
P
S
|
229,027 | $37,118,406 | 2022 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ALNT
ALLIENT INC
|
Technology | 1.39% | 1.02% |
#17
16
Prev: #33
|
2.6 |
—
|
36,232 | 11.2% |
P
S
|
359,685 | $37,022,377 | 2025 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
PRCH
PORCH GROUP INC
|
Financial Services | 1.38% | 0.82% |
#18
23
Prev: #41
|
2.6 |
—
|
311,561 | 14.5% |
P
S
|
2,456,451 | $36,945,023 | 2020 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
AKAM
AKAMAI TECHNOLO...
|
Technology | 1.37% | 2.59% |
#19
14
Prev: #5
|
0.5 |
—
|
-113,081 | -26.7% |
P
S
|
310,361 | $36,687,774 | 2008 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CADL
CANDEL THERAPEU...
|
Healthcare | 1.35% | 0.75% |
#20
24
Prev: #44
|
3.0 |
—
|
596,073 | 20.6% |
P
S
|
3,490,398 | $35,951,099 | 2024 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TLN
TALEN ENERGY CO...
|
Utilities | 1.30% | 1.39% |
#21
1
Prev: #22
|
2.5 |
—
|
8,738 | 10.7% |
P
S
|
90,312 | $34,703,289 | 2024 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
RRX
REGAL REXNORD C...
|
Industrials | 1.23% | 0.54% |
#22
35
Prev: #57
|
3.5 |
—
|
83,523 | 154.7% |
P
S
|
137,498 | $32,750,649 | 2025 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
LNTH
LANTHEUS HLDGS ...
|
Healthcare | 1.20% | 1.68% |
#23
7
Prev: #16
|
0.5 |
—
|
-128,699 | -30.8% |
P
S
|
288,691 | $32,027,380 | 2023 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
BIIB
BIOGEN INC
|
Healthcare | 1.16% | 1.16% |
#24
2
Prev: #26
|
3.0 |
—
|
24,375 | 20.6% |
P
S
|
142,856 | $30,865,467 | 2008 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
VECO
VEECO INSTRS IN...
|
Technology | 1.14% | 0.46% |
#25
40
Prev: #65
|
3.5 |
—
|
148,260 | 58.5% |
P
S
|
401,639 | $30,444,236 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
LUXE
LUXEXPERIENCE B...
|
ETF | 1.13% | 1.59% |
#26
8
Prev: #18
|
2.5 |
—
|
319,204 | 8.5% |
P
S
|
4,053,147 | $30,114,882 | 2023 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ZETA
ZETA GLOBAL HOL...
|
Technology | 1.11% | 0.41% |
#27
43
Prev: #70
|
3.4 |
—
|
1,016,467 | 209.0% |
P
S
|
1,502,738 | $29,573,884 | 2023 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CLBT
CELLEBRITE DI L...
|
Technology | 1.06% | 1.60% |
#28
11
Prev: #17
|
0.9 |
—
|
-248,410 | -11.4% |
P
S
|
1,932,514 | $28,214,704 | 2024 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
SRAD
SPORTRADAR GROU...
|
Technology | 1.02% | — |
#29
Prev: #—
|
3.9 |
—
|
1,819,949 | — |
NEW
|
1,819,949 | $27,244,637 | 2024 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
GOOS
CANADA GOOSE HL...
|
Consumer Cyclical | 0.98% | 1.88% |
#30
17
Prev: #13
|
0.9 |
—
|
-467,754 | -14.5% |
P
S
|
2,750,523 | $26,157,474 | 2024 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
BAND
BANDWIDTH INC
|
Technology | 0.98% | — |
#31
Prev: #—
|
3.9 |
—
|
412,701 | — |
NEW
|
412,701 | $26,123,973 | 2018 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
WRBY
WARBY PARKER IN...
|
Healthcare | 0.96% | 0.56% |
#32
21
Prev: #53
|
3.4 |
—
|
343,156 | 68.5% |
P
S
|
843,862 | $25,602,773 | 2023 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
KTB
KONTOOR BRANDS ...
|
Consumer Cyclical | 0.91% | — |
#33
Prev: #—
|
3.9 |
—
|
292,115 | — |
NEW
|
292,115 | $24,344,864 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
OSK
OSHKOSH CORP
|
Industrials | 0.91% | 0.14% |
#34
85
Prev: #119
|
3.4 |
—
|
139,456 | 766.9% |
P
S
|
157,641 | $24,194,741 | 2025 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ECPG
ENCORE CAP GROU...
|
Financial Services | 0.89% | — |
#35
Prev: #—
|
3.9 |
—
|
255,715 | — |
NEW
|
255,715 | $23,855,652 | 2011 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TWLO
TWILIO INC
|
Technology | 0.89% | 0.50% |
#36
23
Prev: #59
|
3.4 |
—
|
40,628 | 54.3% |
P
S
|
115,397 | $23,809,863 | 2017 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
SEZL
SEZZLE INC
|
Financial Services | 0.87% | 0.24% |
#37
69
Prev: #106
|
3.3 |
—
|
65,697 | 93.8% |
P
S
|
135,743 | $23,297,571 | 2024 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
RELY
REMITLY GLOBAL ...
|
Technology | 0.85% | 0.58% |
#38
13
Prev: #51
|
2.8 |
—
|
319,426 | 45.8% |
P
S
|
1,017,592 | $22,804,237 | 2024 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ACMR
ACM RESH INC
|
Technology | 0.84% | 0.17% |
#39
77
Prev: #116
|
3.3 |
—
|
94,176 | 113.1% |
P
S
|
177,432 | $22,514,346 | 2023 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ESI
ELEMENT SOLUTIO...
|
Basic Materials | 0.84% | 0.40% |
#40
31
Prev: #71
|
3.3 |
—
|
247,981 | 112.1% |
P
S
|
469,213 | $22,404,921 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
NOK
NOKIA CORP
|
Technology | 0.82% | 1.02% |
#41
9
Prev: #32
|
0.3 |
—
|
-748,209 | -31.3% |
P
S
|
1,645,761 | $21,855,706 | 2007 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
BB
BLACKBERRY LTD
|
Technology | 0.81% | — |
#42
Prev: #—
|
3.8 |
—
|
1,714,461 | — |
NEW
|
1,714,461 | $21,687,932 | 2006 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
IFF
INTERNATIONAL F...
|
Basic Materials | 0.80% | — |
#43
Prev: #—
|
3.8 |
—
|
269,229 | — |
NEW
|
269,229 | $21,328,321 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
PLSE
PULSE BIOSCIENC...
|
Healthcare | 0.78% | 0.84% |
#44
4
Prev: #40
|
0.8 |
—
|
19,961 | 2.7% |
P
S
|
753,333 | $20,889,924 | 2025 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
MOG/A
MOOG INC
|
Industrials | 0.78% | 0.46% |
#45
19
Prev: #64
|
3.3 |
—
|
19,837 | 67.4% |
P
S
|
49,274 | $20,884,292 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
REAX
THE REAL BROKER...
|
Real Estate | 0.75% | 1.93% |
#46
34
Prev: #12
|
0.3 |
—
|
-3,477,484 | -23.9% |
P
S
|
11,042,364 | $20,097,102 | 2025 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CDNA
CAREDX INC
|
Healthcare | 0.73% | 0.31% |
#47
39
Prev: #86
|
3.3 |
—
|
344,453 | 101.2% |
P
S
|
684,805 | $19,516,943 | 2022 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
PARR
PAR PAC HOLDING...
|
Energy | 0.72% | 2.31% |
#48
41
Prev: #7
|
0.3 |
—
|
-351,971 | -50.7% |
P
S
|
341,863 | $19,171,677 | 2022 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
VSH
VISHAY INTERTEC...
|
Technology | 0.71% | — |
#49
Prev: #—
|
3.8 |
—
|
351,515 | — |
NEW
|
351,515 | $18,904,477 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TTWO
TAKE-TWO INTERA...
|
Communication Services | 0.68% | 0.34% |
#50
33
Prev: #83
|
3.3 |
—
|
40,268 | 125.0% |
P
S
|
72,487 | $18,120,300 | 2012 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 |
Showing 1-50 of 180 holdings