MITCHELL SINKLER & STARR/PA BRK/B — BERKSHIRE HATHAWAY CL B COMMON STOCK

Ownership history in MITCHELL SINKLER & STARR/PA  ·  52 quarters on record

AI Ownership Summary

MITCHELL SINKLER & STARR/PA reported BERKSHIRE HATHAWAY CL B COMMON STOCK (BRK/B) in 52 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 1.03% in 2025 Q2. The latest visible filing shows BRK/B at 0.99% 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/B ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was MITCHELL SINKLER & STARR/PA's position in BERKSHIRE HATHAWAY CL B COMMON STOCK, 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/B was reported at 0.99% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.03% in 2025 Q2

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/B stock page MITCHELL SINKLER & STARR/PA fund profile MITCHELL SINKLER & STARR/PA full holdings
How MITCHELL SINKLER & STARR/PA held BRK/B — 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 ADDED — — — 4,493 +25 +0.6% 0.99% $2.2M 2026-04-13 $480.19
2025 Q4 UNCHANGED — — — 4,468 — 0% 1.01% $2.2M 2026-02-11 $500.02
2025 Q3 ADDED — — — 4,468 +27 +0.6% 1.01% $2.2M 2025-11-04 $487.66
2025 Q2 ADDED — — — 4,441 +125 +2.9% 1.03% $2.2M 2025-07-25 $484.07
2025 Q1 REDUCED — — — 4,316 -77 -1.8% 0.64% $2.3M 2025-05-07 $518.22
2024 Q4 UNCHANGED — — — 4,393 — 0% 0.53% $2.0M 2025-02-12 $471.73
2024 Q3 UNCHANGED — — — 4,393 — 0% 0.51% $2.0M 2024-11-13 $468.10
2024 Q2 REDUCED — — — 4,393 -2,585 -37.0% 0.50% $1.9M 2024-08-07 $427.02
2024 Q1 ADDED — — — 6,978 +2,314 +49.6% 0.73% $2.9M 2024-04-30 $396.73
2023 Q4 ADDED — — — 4,664 +477 +11.4% 0.30% $1.7M 2024-02-12 $397.71
42 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding BRK/B

As of 2026 Q1 — sorted by position size

TETRAD CORP 92.15% 1922 Investment Co LLC 3Y 7Y 84.86% CHECK CAPITAL MANAGEMENT INC/CA 3Y 7Y 52.8% Templeton & Phillips Capital Management, LLC 3Y 36.02% Aquamarine Zurich AG 3Y 34.57% Ardent Capital Management, Inc. 3Y 32.73% Asset Management Advisors, LLC 3Y 7Y 32.43% United American Securities Inc. (d/b/a UAS Asset Management) 3Y 7Y 31.97% Pacifica Capital Investments, LLC 3Y 7Y 30.79% Intelligent Financial Strategies 3Y 30.53%

FAQ About MITCHELL SINKLER & STARR/PA and BRK/B

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

How long has MITCHELL SINKLER & STARR/PA reported owning BRK/B?

MITCHELL SINKLER & STARR/PA reported BRK/B across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported BRK/B position in MITCHELL SINKLER & STARR/PA's portfolio?

The largest reported portfolio weight for BRK/B was 1.03% in 2025 Q2.

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

The most recent filing on this page is 2026 Q1, when MITCHELL SINKLER & STARR/PA reported 4,493 shares, equal to 0.99% of portfolio, with an estimated market value of $2.2M.

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

The chart compares MITCHELL SINKLER & STARR/PA's quarterly BRK/B 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.

How well did MITCHELL SINKLER & STARR/PA time their BRK/B position?

Based on 13F filing dates vs. subsequent BRK/B price moves, MITCHELL SINKLER & STARR/PA correctly timed 8 out of 28 reported position changes (29%). The annualised alpha on BRK/B relative to SPY over the holding period was -3.3%.

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