Portolan Capital Management, LLC Portfolio Holdings

Portolan Capital Management, LLC

  • $1.38 Billion
  • Q2 2025

Portolan Capital Management, LLC has filed its 13F form on August 13, 2025 for Q2 2025 where it was disclosed a total value porftolio of $1.38 Billion distributed in 118 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Kratos Defense & Security Solutions, Inc. with a value of $61.7M, E.L.F. Beauty, Inc. with a value of $58.1M, Aero Vironment Inc with a value of $51M, Modine Manufacturing CO with a value of $48.5M, and Ttm Technologies Inc with a value of $45.9M.

Examining the 13F form we can see an increase of $161M in the current position value, from $1.22B to 1.38B.

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 $1.38 Billion
Technology: $357 Million
Consumer Cyclical: $272 Million
Industrials: $246 Million
Healthcare: $203 Million
Financial Services: $90.8 Million
Consumer Defensive: $90.2 Million
Communication Services: $87.9 Million
Energy: $13.2 Million
Other: $24.8 Million

Stock Holdings Table Companies Only

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$12B
$61.7 Million 4.46% of portfolio
1,328,423
Q2 2025 Reduced 9.06%
$7.13B
$58.1 Million 4.2% of portfolio
466,838
Q2 2025 Added 18.11%
$9B
$51 Million 3.68% of portfolio
178,816
Q2 2025 New
$7.69B
$48.5 Million 3.5% of portfolio
492,316
Q2 2025 Reduced 0.26%
$6.16B
$45.9 Million 3.32% of portfolio
1,124,157
Q2 2025 Added 10.07%
$4.03B
$43.1 Million 3.12% of portfolio
435,175
Q2 2025 Added 7.05%
$2.38B
$42.5 Million 3.07% of portfolio
4,086,364
Q2 2025 Reduced 4.55%
$3.57B
$35.9 Million 2.59% of portfolio
170,558
Q2 2025 Added 220.45%
$339M
$31.6 Million 2.29% of portfolio
6,217,353
Q2 2025 Added 12.65%
$585M
$30.4 Million 2.2% of portfolio
1,489,572
Q2 2025 Added 17.73%
$828M
$29.9 Million 2.16% of portfolio
3,060,537
Q2 2025 Added 16.43%
$1.72B
$28.8 Million 2.08% of portfolio
2,442,843
Q2 2025 Reduced 25.8%
$416M
$27.8 Million 2.01% of portfolio
990,439
Q2 2025 Added 20.64%
$724M
$26.4 Million 1.91% of portfolio
961,615
Q2 2025 Added 21.85%
$209M
$24.2 Million 1.75% of portfolio
3,633,622
Q2 2025 Added 22.62%
$26.3B
$24 Million 1.73% of portfolio
480,604
Q2 2025 Added 71.09%
$15.6B
$21 Million 1.52% of portfolio
490,547
Q2 2025 Reduced 0.38%
$2.53B
$20.8 Million 1.5% of portfolio
949,277
Q2 2025 Added 254.64%
$3.62B
$20.8 Million 1.5% of portfolio
254,477
Q2 2025 Reduced 70.66%
$489M
$20.4 Million 1.48% of portfolio
1,667,702
Q2 2025 Added 30.63%
$3.29B
$20.4 Million 1.47% of portfolio
1,315,690
Q2 2025 Added 77.35%
$4.49B
$19.4 Million 1.4% of portfolio
341,355
Q2 2025 Reduced 28.65%
$28B
$19 Million 1.37% of portfolio
216,711
Q2 2025 Reduced 12.3%
$4.63B
$17.1 Million 1.24% of portfolio
379,018
Q2 2025 Added 446.87%
$2.09B
$16.6 Million 1.2% of portfolio
876,440
Q2 2025 Reduced 42.7%
$788M
$16.6 Million 1.2% of portfolio
1,487,497
Q2 2025 New
$3.56B
$16.2 Million 1.17% of portfolio
1,011,844
Q2 2025 Added 2.31%
$477M
$15.5 Million 1.12% of portfolio
1,107,869
Q2 2025 Added 89.61%
$7.27B
$15.2 Million 1.1% of portfolio
658,829
Q2 2025 Reduced 61.95%
$7.25B
$15.2 Million 1.09% of portfolio
62,784
Q2 2025 Added 188.79%
$704M
$15.1 Million 1.09% of portfolio
1,401,128
Q2 2025 Added 120.28%
$521M
$14.8 Million 1.07% of portfolio
172,081
Q2 2025 Reduced 53.87%
$10.1B
$12.8 Million 0.93% of portfolio
67,739
Q2 2025 New
$56.7B
$12.4 Million 0.9% of portfolio
49,516
Q2 2025 New
$793M
$12.3 Million 0.89% of portfolio
629,977
Q2 2025 Added 53.02%
$3.53B
$12.2 Million 0.88% of portfolio
273,367
Q2 2025 Reduced 29.7%
$2.1B
$12 Million 0.87% of portfolio
1,757,334
Q2 2025 Reduced 21.67%
$712M
$11.7 Million 0.85% of portfolio
455,322
Q2 2025 New
$202M
$11.6 Million 0.84% of portfolio
1,619,470
Q2 2025 Added 97.89%
$3.17B
$11.6 Million 0.84% of portfolio
149,816
Q2 2025 Added 104.81%
$5.06B
$11.4 Million 0.82% of portfolio
74,942
Q2 2025 New
$3.66B
$10.9 Million 0.79% of portfolio
97,931
Q2 2025 Reduced 12.96%
$42.8B
$10.6 Million 0.77% of portfolio
43,660
Q2 2025 Added 2.18%
$1.25B
$10.5 Million 0.76% of portfolio
168,546
Q2 2025 New
$2.46B
$10.1 Million 0.73% of portfolio
1,183,986
Q2 2025 Added 23.69%
$11.3B
$10 Million 0.72% of portfolio
41,501
Q2 2025 New
$5.49B
$9.6 Million 0.69% of portfolio
341,799
Q2 2025 Reduced 21.97%
$624M
$9.09 Million 0.66% of portfolio
394,553
Q2 2025 New
$744M
$8.96 Million 0.65% of portfolio
1,985,922
Q2 2025 Added 94.11%

Summary

  • Portfolio
  • No. of Stocks 118
  • Current Value $1.38 Billion
  • Prior Value $1.22 Billion
  • Filing
  • Period Q2 2025
  • Filing Date August 13, 2025
  • Form Type 13F-HR
  • Activity in Q2 2025
  • New Purchases 38 stocks
  • Additional Purchases 47 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 31 stocks
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