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

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$21.2B
$93.8 Million 3.92% of portfolio
643,948
Q3 2025 Reduced 15.11%
$15.8B
$53.5 Million 2.24% of portfolio
328,630
Q3 2025 Added 22.14%
$10.5B
$52.9 Million 2.21% of portfolio
507,899
Q3 2025 Added 0.42%
$3.37B
$50.4 Million 2.11% of portfolio
611,360
Q3 2025 Added 6.63%
$598M
$48.2 Million 2.01% of portfolio
1,888,041
Q2 2025 Added 36.34%
$11.3B
$45.6 Million 1.91% of portfolio
358,800
Q3 2025 Reduced 0.06%
$4.17B
$41.1 Million 1.72% of portfolio
610,860
Q2 2025 Added 1.9%
$3.06B
$39.8 Million 1.66% of portfolio
2,712,040
Q3 2025 Reduced 13.52%
$974M
$39.2 Million 1.64% of portfolio
665,700
Q3 2025 Reduced 0.37%
$4.61B
$37.1 Million 1.55% of portfolio
1,379,100
Q3 2025 Added 0.12%
$8.3B
$36.2 Million 1.51% of portfolio
113,285
Q3 2025 Added 0.16%
$4.44B
$35.4 Million 1.48% of portfolio
284,150
Q3 2025 Reduced 0.12%
$4.89B
$33.3 Million 1.39% of portfolio
330,790
Q3 2025 Reduced 0.06%
$6.02B
$32.1 Million 1.34% of portfolio
106,396
Q3 2025 Added 44.76%
$4.09B
$30.8 Million 1.29% of portfolio
398,500
Q2 2025 Reduced 3.35%
$11.1B
$27.1 Million 1.13% of portfolio
116,770
Q3 2025 Reduced 0.45%
$4.44B
$26.4 Million 1.1% of portfolio
772,000
Q3 2025 Added 22.17%
$6.28B
$26.4 Million 1.1% of portfolio
192,400
Q2 2025 Reduced 20.79%
$4.61B
$25.3 Million 1.06% of portfolio
101,400
Q3 2025 Reduced 6.97%
$3.03B
$24.8 Million 1.04% of portfolio
377,800
Q2 2025 Added 12.37%
$2.82B
$24.8 Million 1.04% of portfolio
721,690
Q3 2025 Reduced 0.66%
$5.71B
$24.3 Million 1.02% of portfolio
128,600
Q3 2025 Added 2.14%
$1.11B
$24.4 Million 1.02% of portfolio
1,191,560
Q3 2025 Added 11.39%
$1.76B
$24.2 Million 1.01% of portfolio
2,059,470
Q3 2025 Added 0.42%
$4.93B
$23.9 Million 1.0% of portfolio
866,400
Q3 2025 Added 6.66%
$8.77B
$23.8 Million 0.99% of portfolio
260,900
Q3 2025 Added 30.25%
$8.56B
$22.6 Million 0.95% of portfolio
272,730
Q3 2025 Reduced 4.02%
$4.67B
$22.4 Million 0.94% of portfolio
389,400
Q3 2025 Reduced 0.1%
$11.4B
$22.1 Million 0.93% of portfolio
177,790
Q3 2025 Reduced 0.96%
$5.23B
$21.9 Million 0.92% of portfolio
99,800
Q3 2025 Added 10.4%
$8.24B
$21.6 Million 0.91% of portfolio
516,800
Q3 2025 Added 68.83%
$2.87B
$21.9 Million 0.91% of portfolio
230,600
Q2 2025 Added 25.94%
$8.78B
$21.7 Million 0.91% of portfolio
409,285
Q3 2025 Reduced 21.62%
$1.63B
$21.5 Million 0.9% of portfolio
373,400
Q2 2025 Added 4.04%
$2.9B
$21.2 Million 0.89% of portfolio
236,500
Q2 2025 Added 7.5%
$2.12B
$21.2 Million 0.89% of portfolio
404,500
Q3 2025 Added 69.96%
$4.56B
$21.1 Million 0.88% of portfolio
652,320
Q3 2025 Reduced 0.24%
$4.15B
$21.2 Million 0.88% of portfolio
292,260
Q3 2025 Added 0.09%
$2.07B
$21.1 Million 0.88% of portfolio
903,500
Q3 2025 New
$4.86B
$20.8 Million 0.87% of portfolio
221,600
Q2 2025 Added 9.16%
$16B
$20.3 Million 0.85% of portfolio
82,611
Q3 2025 Reduced 0.36%
$8.81B
$20.2 Million 0.84% of portfolio
275,536
Q3 2025 New
$6.65B
$19.8 Million 0.83% of portfolio
166,500
Q2 2025 Reduced 27.56%
$3.65B
$19.3 Million 0.81% of portfolio
518,400
Q2 2025 Added 3.68%
$3.69B
$19.4 Million 0.81% of portfolio
107,120
Q3 2025 New
$4.84B
$19.3 Million 0.81% of portfolio
232,010
Q3 2025 Added 9.02%
$1.97B
$19 Million 0.79% of portfolio
579,600
Q4 2024 Added 29.66%
$3.92B
$18.9 Million 0.79% of portfolio
213,580
Q2 2025 Added 6.8%
$12.2B
$18 Million 0.75% of portfolio
83,000
Q2 2025 Added 2.47%

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
Track This Portfolio

Track Oberweis Asset Management Inc Portfolio

Follow Oberweis Asset Management Inc and customize your updates to receive the information that matters most to you.

Portfolio Update

Get notified when there are updates to the investment portfolio of Oberweis Asset Management Inc, based on Form 13F filings with the SEC.

News

Stay updated on Oberweis Asset Management Inc with notifications on news.

Choose your preferred platform and Sign Up 👇 Telegram Email