Asset Manager

OBERWEIS ASSET MANAGEMENT INC/

Lisle, IL SEC Registered Investment Advisor Institutional CIK: 0000937886
13F Score
13
3-Year
13F Score
15
7-Year
S&P 500
80
Benchmark
$2.73B
AUM
+29.36%
2025 Q4
+27.47%
1-Year Return
+20.79%
Top 10 Concentration
+16.19%
Turnover
+4.72%
AUM Change
Since 1999
First Filing
182
# of Holdings

Fund Overview

About
Investment Strategy
Analytics Summary
Risk Profile
Key Personnel
James D. Oberweis — Founder and Chairman
James W. Oberweis Jr. — President and Chief Investment Officer
Kenneth S. Kaipio — Portfolio Manager, International Equities

Activity Summary — 2025 Q4

Q4 2025 13F Filed: Feb 17, 2026

Top Buys

% $
Stock % Impact
LITE Lumentum Hldgs,.. +1.83%
GMED Globus Medical,.. +0.86%
ARQT Arcutis Biother.. +0.86%
AAOI Applied Optoele.. +0.81%
DAN Dana Inc... +0.69%
CNR Core Natural Re.. +0.58%

Top Sells

% $
Stock % Impact
ADMA ADMA Biologics,.. Sold All 😨 Was: 1.52% -1.45%
SRAD Sportradar Grou.. Sold All 😨 Was: 1.42% -1.36%
ITRI Itron Inc.. Sold All 😨 Was: 1.36% -1.29%
LRN Stride, Inc... Sold All 😨 Was: 1.04% -0.99%
QRVO Qorvo, Inc... Sold All 😨 Was: 0.91% -0.87%
PSN Parsons Corp... Sold All 😨 Was: 0.87% -0.83%

Top Holdings

2025 Q4
Stock %
LITE Lumentum Hld.. 3.79%
CRDO Credo Techno.. 3.55%
AAOI Applied Opto.. 2.60%
SN Sharkninja, .. 2.15%
AMBA Ambarella, I.. 1.60%
RMBS Rambus, Inc.. 1.55%
View All Holdings

Activity Summary

Latest
Market Value $2.73B
AUM Change +4.72%
New Positions 21
Increased Positions 104
Closed Positions 25
Top 10 Concentration +20.79%
Portfolio Turnover +16.19%
Alt Turnover +18.45%

Sector Allocation Trends

Quarterly History
Free View: Last 6 Quarters. Subscribe to see full history

Holdings Analysis

Size: % of Portfolio Color: Qtr Return No data

Positions Dynamics

Visualizing Top 20 holdings weight history over the last 10 quarters.

Portfolio Analytics — Latest

Quarterly 13F AUM (in billions) — Full History
* Data may contain inaccuracies due to the complex nature of determining total Assets Under Management (AUM).
Guru Intelligence Hub Pro
Real-time Analytics
High-Conviction Alpha
AAPL 92.4
NVDA 88.1
MSFT 74.3
Strategy Guardian
Style Drift 0.12
Sector Rotation 0.38

Tracking institutional benchmark deviation

Scenario Lab
2008 GFC -32.4%
Covid-19 -18.1%
2022 Bear -24.7%
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Best Strategy vs. Benchmarks

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Edge Metrics Last 10 quarters only
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Disclaimer: 13Foresight is not a registered investment adviser, broker-dealer, or financial planner. All information on this site is provided solely for informational and educational purposes and does not constitute investment advice, a solicitation, or a recommendation to buy or sell any security. Portfolio backtests shown on this page are hypothetical and simulated — they do not represent actual trading results and were constructed with the benefit of hindsight. Actual results would differ materially. 13F filings disclose only long equity positions valued above $10,000, submitted up to 45 days after quarter-end; they do not capture short positions, options, bonds, cash, private investments, or non-U.S. securities. A fund's backtest performance may not reflect its actual returns, as managers frequently generate alpha through strategies not visible in 13F data. Past performance is not indicative of future results. All data sourced from public SEC EDGAR filings. Use at your own risk. Full Terms of Use.