Berkshire's Q1 2026 13F shows holdings as of March 31. The snapshot is already two months old. Traders who treat it as a live signal risk buying into positions Berkshire may have already trimmed.
Berkshire Hathaway filed its Q1 2026 13F on May 15, a regulatory snapshot of equity holdings as of March 31. The filing routinely draws attention because of Berkshire's track record. For traders building watchlists around disclosed positions, the filing carries a specific risk: the data is already two months old.
A 13F reveals equity holdings as of the last day of the quarter. The filing arrives up to 45 days later. By the time traders see it, Berkshire Hathaway may have added, trimmed, or exited positions during April and May. The Alpha Score for BRK.B sits at 54/100, a Mixed label, reflecting neutral momentum and valuation dynamics. The filing alone is unlikely to shift that score.
The stocks most commonly linked to Berkshire – such as AMZN and GOOGL – frequently appear in 13F filings. AMZN carries an Alpha Score of 59 (Moderate) and GOOGL scores 78 (Strong). Traders who see a new position or a large increase often rush to buy the named stock. That reaction ignores the disclosure lag.
Berkshire's filing discloses positions from two months ago. If the firm sold shares in early April after the snapshot, a trader buying today based on the 13F is buying into a shrinking position. The same works in reverse. A reduction in a stock could look like a bearish signal. Berkshire may have rebuilt the stake since.
The mechanism matters more than the number. The 13F is not a trade alert. It is a backward-looking regulatory form. Watchlist traders who treat it as current risk misallocating capital. The better read is to compare multiple quarters to identify sustained trends, not single-quarter changes.
What reduces the risk? Waiting for subsequent filings or cross-referencing with Berkshire's public commentary. CEO Warren Buffett often discusses the most consequential moves at annual meetings or in interviews. Short-term bets on 13F data alone carry execution risk.
What makes it worse? Copying the filing without understanding the lag. A trader who buys a stock because Berkshire added it in the quarter – then sees the stock drop – may panic-sell the same position Berkshire trimmed the following month. The filing cannot differentiate between tactical noise and strategic shifts.
The filing is a starting point, not a trigger. For traders building watchlists, the next decision point is the Q2 2026 13F, due in August. That filing will confirm or contradict the Q1 signals. In the meantime, focus on the stocks with strong or improving Alpha Scores in your own analysis. For GOOGL, the Strong score of 78 suggests current conditions support the position regardless of Berkshire's stance. For AMZN, the Moderate score warrants caution.
The Q1 2026 filing offers a historical data point. The real risk is treating a stale snapshot as a live signal. Let the next quarter settle the story.
For more context on Berkshire's portfolio, visit the BRK.B stock page. Check the AMZN stock page and GOOGL stock page for current Alpha Scores and momentum. For broader market analysis, see stock market analysis.
Prepared with AlphaScala research tooling and grounded in primary market data: live prices, fundamentals, SEC filings, hedge-fund holdings, and insider activity. Each story is checked against AlphaScala publishing rules before release. Educational coverage, not personalized advice.