Oberweis Asset Management Inc Portfolio Holdings

Oberweis Asset Management Inc

  • $2.39 Billion
  • Q3 2025

Oberweis Asset Management Inc has filed its 13F form on November 17, 2025 for Q3 2025 where it was disclosed a total value porftolio of $2.39 Billion distributed in 183 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Credo Technology Group Holding LTD with a value of $93.8M, Lumentum Holdings Inc. with a value of $53.5M, Rambus Inc with a value of $52.9M, Ambarella Inc with a value of $50.4M, and Applied Optoelectronics, Inc. with a value of $48.2M.

Examining the 13F form we can see an increase of $263M in the current position value, from $2.13B to 2.39B.

Oberweis Asset Management Inc is based out at Lisle, IL

Below you can find more details about Oberweis Asset Management Inc portfolio as well as his latest detailed transactions.

Portfolio value $2.39 Billion
Technology: $1.01 Billion
Industrials: $443 Million
Healthcare: $308 Million
Consumer Cyclical: $257 Million
Financial Services: $113 Million
Consumer Defensive: $107 Million
Communication Services: $91.1 Million
Energy: $36 Million
Other: $23.2 Million

Stock Holdings Table ETFs Only

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$0
$1.45 Million 0.06% of portfolio
2,173
Q3 2025 Added 0.23%

Summary

  • Portfolio
  • No. of Stocks 183
  • Current Value $2.39 Billion
  • Prior Value $2.13 Billion
  • Filing
  • Period Q3 2025
  • Filing Date November 17, 2025
  • Form Type 13F-HR
  • Activity in Q3 2025
  • New Purchases 23 stocks
  • Additional Purchases 43 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 40 stocks
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