PROFESSIONAL ADVISORY SERVICES INC BRK/A — BERKSHIRE A (1SH /100)

Ownership history in PROFESSIONAL ADVISORY SERVICES INC  ·  31 quarters on record

AI Ownership Summary

PROFESSIONAL ADVISORY SERVICES INC reported BERKSHIRE A (1SH /100) (BRK/A) in 31 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 0.11% in 2025 Q1. The latest visible filing shows BRK/A at 0.10% 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.

What this BRK/A ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was PROFESSIONAL ADVISORY SERVICES INC's position in BERKSHIRE A (1SH /100), 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.

Freshest filing
Latest Reported Filing
2026 Q1

BRK/A was reported at 0.10% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.11% in 2025 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

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.

BRK/A stock page PROFESSIONAL ADVISORY SERVICES INC fund profile PROFESSIONAL ADVISORY SERVICES INC full holdings
How PROFESSIONAL ADVISORY SERVICES INC held BRK/A — position size vs. price
% of Fund (quarterly)
📋 Quarterly Holdings History 10 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 UNCHANGED — — — 100 — 0% 0.10% $718 2026-04-15 $711235.00
2025 Q4 UNCHANGED — — — 100 — 0% 0.10% $755K 2026-01-12 $747860.00
2025 Q3 UNCHANGED — — — 100 — 0% 0.10% $754K 2025-10-29 $712900.00
2025 Q2 UNCHANGED — — — 100 — 0% 0.10% $729K 2025-07-11 $712842.00
2025 Q1 UNCHANGED — — — 100 — 0% 0.11% $798K 2025-04-14 $793788.00
2024 Q4 UNCHANGED — — — 100 — 0% 0.09% $678K 2025-01-15 $688500.00
2024 Q3 UNCHANGED — — — 100 — 0% 0.09% $691K 2024-10-17 $697640.00
2024 Q2 UNCHANGED — — — 100 — 0% 0.08% $612K 2024-07-10 $622506.00
2024 Q1 UNCHANGED — — — 100 — 0% 0.09% $634K 2024-04-22 $617284.00
2023 Q4 UNCHANGED — — — 100 — 0% 0.08% $543K 2024-01-10 $557590.00
21 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding BRK/A

As of 2026 Q1 — sorted by position size

NORTHWESTERN UNIVERSITY 3Y 7Y 92.11% Mirae Asset Global Investments Co., Ltd. 3Y 7Y 88.4% Graham Holdings Co Master Retirement Trust 3Y 84.28% University of Maryland Foundation, Inc. 3Y 56.32% Hikari Tsushin, Inc. 3Y 7Y 55.8% Rede Wealth, LLC 3Y 53.73% Hikari Power Ltd 3Y 7Y 47.49% Baldwin Investment Management, LLC 3Y 7Y 46.58% Canton Hathaway, LLC 3Y 7Y 42.02% Punch Card Management L.P. 3Y 7Y 38.47%

FAQ About PROFESSIONAL ADVISORY SERVICES INC and BRK/A

These are the practical questions this page is built to answer before you even open the full history table.

How long has PROFESSIONAL ADVISORY SERVICES INC reported owning BRK/A?

PROFESSIONAL ADVISORY SERVICES INC reported BRK/A across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported BRK/A position in PROFESSIONAL ADVISORY SERVICES INC's portfolio?

The largest reported portfolio weight for BRK/A was 0.11% in 2025 Q1.

What is the latest reported BRK/A position on this page?

The most recent filing on this page is 2026 Q1, when PROFESSIONAL ADVISORY SERVICES INC reported 100 shares, equal to 0.10% of portfolio, with an estimated market value of $718.

What does the chart on this BRK/A ownership page compare?

The chart compares PROFESSIONAL ADVISORY SERVICES INC's quarterly BRK/A 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.

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