Portolan Capital Management, LLC Portfolio Holdings

Portolan Capital Management, LLC

  • $1.22 Billion
  • Q1 2025

Portolan Capital Management, LLC has filed its 13F form on May 15, 2025 for Q1 2025 where it was disclosed a total value porftolio of $1.22 Billion distributed in 109 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Lantheus Holdings, Inc. with a value of $84.6M, Slm Corp with a value of $44.4M, Kratos Defense & Security Solutions, Inc. with a value of $43.4M, Genius Sports LTD with a value of $42.9M, and Modine Manufacturing CO with a value of $37.9M.

Examining the 13F form we can see an decrease of $97.1M in the current position value, from $1.32B to 1.22B.

Portolan Capital Management, LLC is based out at Boston, MA

Below you can find more details about Portolan Capital Management, LLC portfolio as well as his latest detailed transactions.

Portfolio value $1.22 Billion
Consumer Cyclical: $278 Million
Technology: $242 Million
Healthcare: $226 Million
Industrials: $129 Million
Financial Services: $126 Million
Communication Services: $126 Million
Consumer Defensive: $65.8 Million
Energy: $22.1 Million
Other: $9.39 Million

Stock Holdings Table

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$1.98B
$8.41 Million 0.69% of portfolio
644,548
Q1 2025 New
$3.88B
$7.46 Million 0.61% of portfolio
40,488
Q1 2025 New
$939M
$7.49 Million 0.61% of portfolio
296,442
Q1 2025 Reduced 13.14%
$913M
$7.31 Million 0.6% of portfolio
411,683
Q1 2025 New
$1.5T
$7.17 Million 0.59% of portfolio
12,443
Q1 2025 Reduced 15.39%
$2.06B
$7.08 Million 0.58% of portfolio
957,202
Q1 2025 Added 135.92%
$837M
$6.92 Million 0.57% of portfolio
283,092
Q1 2025 Added 47.28%
$447M
$6.93 Million 0.57% of portfolio
322,105
Q1 2025 Added 51.96%
$139M
$6.96 Million 0.57% of portfolio
1,817,293
Q1 2025 Added 122.03%
$561M
$6.39 Million 0.52% of portfolio
689,246
Q1 2025 Added 26.64%
$207M
$5.97 Million 0.49% of portfolio
1,317,079
Q1 2025 Added 75.84%
$1.12B
$5.9 Million 0.48% of portfolio
1,397,327
Q1 2025 Reduced 3.74%
$1.47B
$5.41 Million 0.44% of portfolio
421,336
Q1 2025 Added 28.98%
$519M
$5.37 Million 0.44% of portfolio
636,067
Q1 2025 New
$5.43B
$5.29 Million 0.43% of portfolio
21,740
Q1 2025 Reduced 28.92%
$4.04B
$5.23 Million 0.43% of portfolio
73,148
Q1 2025 Reduced 35.85%
$170M
$4.98 Million 0.41% of portfolio
881,184
Q1 2025 Added 16.91%
$1.99B
$4.88 Million 0.4% of portfolio
267,675
Q1 2025 Reduced 39.41%
$393M
$4.88 Million 0.4% of portfolio
549,922
Q1 2025 New
$916M
$4.82 Million 0.39% of portfolio
140,726
Q1 2025 Reduced 34.67%
$410M
$4.53 Million 0.37% of portfolio
584,277
Q1 2025 New
$214M
$4.49 Million 0.37% of portfolio
818,354
Q1 2025 New
$830M
$4.59 Million 0.37% of portfolio
2,011,814
Q1 2025 Added 24.38%
$257M
$4.3 Million 0.35% of portfolio
1,235,224
Q1 2025 New
$1.33B
$4.19 Million 0.34% of portfolio
70,451
Q1 2025 Added 10.93%
$755M
$4.15 Million 0.34% of portfolio
1,023,099
Q1 2025 New
$891M
$4.11 Million 0.34% of portfolio
100,829
Q1 2025 Reduced 48.02%
$14.3B
$4.02 Million 0.33% of portfolio
187,169
Q1 2025 New
$1.94B
$3.75 Million 0.31% of portfolio
138,255
Q1 2025 New
$73.5M
$3.33 Million 0.27% of portfolio
1,044,652
Q1 2025 Reduced 0.22%
$2.05B
$3.35 Million 0.27% of portfolio
138,748
Q1 2025 Added 8.04%
$3.95B
$3.2 Million 0.26% of portfolio
47,536
Q1 2025 New
$554M
$3.06 Million 0.25% of portfolio
370,191
Q1 2025 Added 30.85%
$257M
$3.11 Million 0.25% of portfolio
573,622
Q1 2025 New
$15.5B
$2.91 Million 0.24% of portfolio
20,559
Q1 2025 Reduced 46.73%
$615M
$2.63 Million 0.22% of portfolio
100,552
Q1 2025 New
$3.52B
$2.65 Million 0.22% of portfolio
127,227
Q1 2025 Reduced 81.67%
$2.42B
$2.38 Million 0.19% of portfolio
69,307
Q1 2025 Reduced 89.61%
$3.45T
$2.18 Million 0.18% of portfolio
5,797
Q1 2025 Reduced 15.35%
$601M
$1.83 Million 0.15% of portfolio
24,393
Q1 2025 Reduced 30.43%
$279M
$1.88 Million 0.15% of portfolio
88,732
Q1 2025 Reduced 80.89%
$5.88B
$1.71 Million 0.14% of portfolio
15,303
Q1 2025 Reduced 0.22%
$456B
$1.38 Million 0.11% of portfolio
9,844
Q1 2025 Reduced 87.25%
$1.02T
$994,000 0.08% of portfolio
6,367
Q1 2025 Added 25.66%
$457M
$851,000 0.07% of portfolio
34,553
Q1 2025 Reduced 83.17%
$3.7B
$850,000 0.07% of portfolio
8,971
Q1 2025 Reduced 0.28%
$32.7B
$713,000 0.06% of portfolio
8,234
Q1 2025 Reduced 89.79%
$3.84B
$587,000 0.05% of portfolio
10,240
Q1 2025 Reduced 90.45%
$79.7M
$234,000 0.02% of portfolio
237,334
Q1 2025 Reduced 89.83%

Summary

  • Portfolio
  • No. of Stocks 109
  • Current Value $1.22 Billion
  • Prior Value $1.32 Billion
  • Filing
  • Period Q1 2025
  • Filing Date May 15, 2025
  • Form Type 13F-HR
  • Activity in Q1 2025
  • New Purchases 21 stocks
  • Additional Purchases 53 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 35 stocks
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