LOUNTZIS ASSET MANAGEMENT, LLC reported Applied Materials (AMAT) in 21 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 11.79% in 2024 Q2. The latest visible filing shows AMAT at 10.90% of the fund.
This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.
This page is designed to answer the real investor question behind a 13F filing: how meaningful was LOUNTZIS ASSET MANAGEMENT, LLC's position in Applied Materials, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.
AMAT was reported at 10.90% of portfolio in the most recent visible filing.
Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.
Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.
Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.
As of 2026 Q1 — sorted by position size
These are the practical questions this page is built to answer before you even open the full history table.
LOUNTZIS ASSET MANAGEMENT, LLC reported AMAT across 9 quarterly 13F filings, from 2023 Q4 through 2025 Q4.
The largest reported portfolio weight for AMAT was 11.79% in 2024 Q2.
The most recent filing on this page is 2025 Q4, when LOUNTZIS ASSET MANAGEMENT, LLC reported 119,461 shares, equal to 10.90% of portfolio, with an estimated market value of $30.7M.
The chart compares LOUNTZIS ASSET MANAGEMENT, LLC's quarterly AMAT portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.
Based on 13F filing dates vs. subsequent AMAT price moves, LOUNTZIS ASSET MANAGEMENT, LLC correctly timed 9 out of 19 reported position changes (47%). The annualised alpha on AMAT relative to SPY over the holding period was +13.4%.