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Portolan Capital Management, LLC

13F
Portolan Capital Management, LLC
Last update 2025-05-15 109 Stocks (21 new)
Value $1.32 Bil Turnover 32 %
Countries:
Portolan Capital Management, L... Top Holdings of 2025-03-31 View Full List
Ticker
Company
Shares
Value ($1000)
Shares Change %
Weighting %
Trade Impact %
% of Shares outstanding
3M Change %
YTD Change %
Market Cap $Mil
Industry
LNTH
Lantheus Holdings Inc
867,309
84,649.4
+6.73%
6.430
+0.41%
1.250
-27.35%
-19.14%
5,004.9
Drug Manufacturers
SLM
SLM Corp
1,512,274
44,415.5
+67.93%
3.380
+1.37%
0.720
+23.15%
+19.80%
6,874.9
Credit Services
KTOS
Kratos Defense & Security Solutions Inc
Kratos Defense & Security Solutions Inc
1,460,730
43,369.1
+8.36%
3.300
+0.25%
0.950
+72.54%
+110.08%
9,331.5
Aerospace & Defense
GENI
Genius Sports Ltd
4,281,255
42,855.4
+39.47%
3.260
+0.92%
1.810
+3.20%
+23.12%
2,522.7
Interactive Media
MOD
Modine Manufacturing Co
493,575
37,881.9
+50.07%
2.880
+0.96%
0.940
+29.96%
-19.06%
4,923.9
Vehicles & Parts
FOUR
Shift4 Payments Inc
406,499
33,215.0
+188.36%
2.520
+1.65%
0.590
+38.69%
+2.90%
7,232.2
Software
EBAY
eBay Inc
474,658
32,148.6
+99.33%
2.440
+1.22%
0.100
+22.43%
+33.11%
37,678.6
Retail - Cyclical
GTES
Gates Industrial Corp PLC
1,731,408
31,875.2
+54.97%
2.420
+0.86%
0.670
+44.57%
+19.06%
6,312.8
Industrial Products
CLS
Celestica Inc
392,920
30,966.0
-37.33%
2.350
-1.45%
0.340
+89.57%
+70.00%
17,871.9
Hardware
HNST
The Honest Co Inc
5,519,206
25,940.3
+2.99%
1.970
+0.06%
5.010
+6.25%
-31.31%
524.7
Consumer Packaged Goods

Portolan Capital Management, LLC's Historical Top Holdings Breakdowns

Portolan Capital Management, LLC's Top Stock Picks View Full List
Ticker
Company
Date
Action
Impact %
Price Range
Price
Price Change from Avrg%
Comment
Current Shares
Share Change
SMTC
Semtech Corp
2025-03-31
Reduce
Reduce
-2.49%
31.44 ($49.33) 77.15
$51.47
4.34%
Reduce -89.61%
69,307
-597,904
SNAP
Snap Inc
2025-03-31
Sold Out
Sold Out
-1.71%
8.37 ($10.43) 12.57
$10.35
-0.77%
Sold Out
0
-2,362,784
TREE
LendingTree Inc
2025-03-31
New Buy
New Buy
+1.68%
36.27 ($44.55) 55.58
$40.49
-9.11%
New holding
438,795
438,795
FOUR
Shift4 Payments Inc
2025-03-31
Add
Add
+1.65%
81.71 ($103.05) 125.66
$106.79
3.63%
Add 188.36%
406,499
265,528
TLN
Talen Energy Corp
2025-03-31
Reduce
Reduce
-1.51%
165.75 ($216.89) 250.37
$313.58
44.58%
Reduce -72.36%
42,670
-111,711
LQDT
Liquidity Services Inc
2025-03-31
New Buy
New Buy
+1.48%
29.26 ($33.25) 37.61
$24.68
-25.77%
New holding
626,358
626,358
CLS
Celestica Inc
2025-03-31
Reduce
Reduce
-1.45%
78.81 ($106.09) 143.67
$156.91
47.90%
Reduce -37.33%
392,920
-234,021
RDDT
Reddit Inc
2025-03-31
Reduce
Reduce
-1.40%
104.9 ($165.28) 225.23
$145.80
-11.79%
Reduce -96.29%
4,885
-126,737
SLM
SLM Corp
2025-03-31
Add
Add
+1.37%
26.95 ($29.25) 32.54
$32.76
12.00%
Add 67.93%
1,512,274
611,755
EBAY
eBay Inc
2025-03-31
Add
Add
+1.22%
61.61 ($66.65) 70.93
$81.76
22.67%
Add 99.33%
474,658
236,526

Portolan Capital Management, LLC Total Holding History ($B)

To

Portolan Capital Management, LLC's Asset Allocation

To

Portolan Capital Management, LLC Past Portfolios

Portfolio Date Number of Stocks New Stocks Total Value ($Mil) Q/Q Turnover

Top Ranked Articles

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Portolan Capital Management, LLC's Hypothetical Growth since 2025-03-31

Portolan Capital Management, LLC's Yearly Returns

Year Portfolio % % Excess Gain %

Portolan Capital Management, LLC's Holdings Heat Map

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Portolan Capital Management, LLC's Holdings Bubble Chart

Portolan Capital Management, LLC News

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