PRENTISS SMITH & CO INC BRK/B — Berkshire Hatha

Ownership history in PRENTISS SMITH & CO INC  ·  80 quarters on record

AI Ownership Summary

PRENTISS SMITH & CO INC reported Berkshire Hatha (BRK/B) in 80 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 2.25% in 2025 Q1. The latest visible filing shows BRK/B at 1.79% 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 PRENTISS SMITH & CO INC's position in Berkshire Hatha, 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 1.79% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
2.25% 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 PRENTISS SMITH & CO INC fund profile PRENTISS SMITH & CO INC full holdings
How PRENTISS SMITH & CO INC 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 UNCHANGED — — — 6,436 — 0% 1.79% $3.1M 2026-05-07 $469.32
2025 Q4 UNCHANGED — — — 6,436 — 0% 1.93% $3.2M 2026-01-29 $476.79
2025 Q3 REDUCED — — — 6,436 -89 -1.4% 1.83% $3.2M 2025-10-20 $494.08
2025 Q2 UNCHANGED — — — 6,525 — 0% 1.89% $3.2M 2025-07-22 $478.13
2025 Q1 REDUCED — — — 6,525 -30 -0.5% 2.25% $3.5M 2025-04-21 $506.92
2024 Q4 REDUCED — — — 6,555 -200 -3.0% 1.95% $3.0M 2025-01-23 $459.83
2024 Q3 UNCHANGED — — — 6,755 — 0% 1.99% $3.1M 2024-10-21 $464.16
2024 Q2 UNCHANGED — — — 6,755 — 0% 1.92% $2.7M 2024-07-17 $445.61
2024 Q1 REDUCED — — — 6,755 -20 -0.3% 2.00% $2.8M 2024-04-30 $396.73
2023 Q4 UNCHANGED — — — 6,775 — 0% 1.80% $2.4M 2024-02-02 $390.75
70 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 PRENTISS SMITH & CO INC 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 PRENTISS SMITH & CO INC reported owning BRK/B?

PRENTISS SMITH & CO INC reported BRK/B across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported BRK/B position in PRENTISS SMITH & CO INC's portfolio?

The largest reported portfolio weight for BRK/B was 2.25% 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 PRENTISS SMITH & CO INC reported 6,436 shares, equal to 1.79% of portfolio, with an estimated market value of $3.1M.

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

The chart compares PRENTISS SMITH & CO INC'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 PRENTISS SMITH & CO INC time their BRK/B position?

Based on 13F filing dates vs. subsequent BRK/B price moves, PRENTISS SMITH & CO INC correctly timed 19 out of 41 reported position changes (46%). The annualised alpha on BRK/B relative to SPY over the holding period was -0.2%.

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