HALL LAURIE J TRUSTEE BRK/B — BERKSHIRE HATHAWAY INC DEL COM

Ownership history in HALL LAURIE J TRUSTEE  ·  67 quarters on record

AI Ownership Summary

HALL LAURIE J TRUSTEE reported BERKSHIRE HATHAWAY INC DEL COM (BRK/B) in 67 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 0.72% in 2025 Q1. The latest visible filing shows BRK/B at 0.57% 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 HALL LAURIE J TRUSTEE's position in BERKSHIRE HATHAWAY INC DEL COM, 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 0.57% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.72% 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/B stock page HALL LAURIE J TRUSTEE fund profile HALL LAURIE J TRUSTEE full holdings
How HALL LAURIE J TRUSTEE 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 REDUCED — — — 3,345 -60 -1.8% 0.57% $1.6M 2026-04-06 $476.38
2025 Q4 REDUCED — — — 3,405 -322 -8.6% 0.57% $1.7M 2026-01-20 $485.39
2025 Q3 REDUCED — — — 3,727 -46 -1.2% 0.61% $1.9M 2025-10-14 $495.97
2025 Q2 REDUCED — — — 3,773 -30 -0.8% 0.61% $1.8M 2025-07-15 $470.13
2025 Q1 UNCHANGED — — — 3,803 — 0% 0.72% $2.0M 2025-05-15 $507.33
2024 Q4 REDUCED — — — 3,803 -75 -1.9% 0.57% $2K 2025-01-16 $462.81
2024 Q3 ADDED — — — 3,878 +860 +28.5% 0.57% $2K 2024-10-08 $453.80
2024 Q2 REDUCED — — — 3,018 -10 -0.3% 0.43% $1K 2024-07-22 $435.98
2024 Q1 UNCHANGED — — — 3,028 — 0% 0.45% $1K 2024-04-23 $408.74
2023 Q4 REDUCED — — — 3,028 -370 -10.9% 0.41% $1K 2024-01-11 $363.34
57 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% Cook & Bynum Capital Management, LLC 3Y 7Y 42.7% 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%

FAQ About HALL LAURIE J TRUSTEE 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 HALL LAURIE J TRUSTEE reported owning BRK/B?

HALL LAURIE J TRUSTEE reported BRK/B across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported BRK/B position in HALL LAURIE J TRUSTEE's portfolio?

The largest reported portfolio weight for BRK/B was 0.72% in 2025 Q1.

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

The most recent filing on this page is 2026 Q1, when HALL LAURIE J TRUSTEE reported 3,345 shares, equal to 0.57% of portfolio, with an estimated market value of $1.6M.

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

The chart compares HALL LAURIE J TRUSTEE'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 HALL LAURIE J TRUSTEE time their BRK/B position?

Based on 13F filing dates vs. subsequent BRK/B price moves, HALL LAURIE J TRUSTEE correctly timed 17 out of 41 reported position changes (41%). The annualised alpha on BRK/B relative to SPY over the holding period was -0.8%.

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