If you are looking for Berkshire Hathaway's next 13F filing date in 2026, the key date to watch is May 15, 2026. Form 13F is normally due 45 days after the end of each calendar quarter, so Berkshire's Q1 2026 holdings should be due by that Friday unless the SEC changes the calendar.

That matters because Berkshire's next filing will be the first real look at whether Greg Abel and Berkshire's investing team actually started deploying any of the company's massive cash pile during the first quarter.

Berkshire Hathaway next 13F filing date 2026

Here is the simple timeline investors are searching for:

  • Q4 2025: holdings as of Dec. 31, 2025, filed Feb. 17, 2026
  • Q1 2026: holdings as of Mar. 31, 2026, expected May 15, 2026
  • Q2 2026: holdings as of Jun. 30, 2026, expected Aug. 14, 2026
  • Q3 2026: holdings as of Sep. 30, 2026, expected Nov. 16, 2026

If you want the full breakdown of the last report, start with our Berkshire Hathaway 13F filing February 2026 analysis.

Why May 15, 2026 is the date to watch

Form 13F filings are backward-looking. Berkshire does not disclose trades in real time. Instead, investors get a quarterly snapshot with a delay. That means the Q1 2026 filing will show what Berkshire owned on March 31, 2026, not what it buys after that.

Even with that lag, the filing is still one of the most important public clues for Berkshire watchers because it can confirm:

  • whether Berkshire kept trimming Apple or Bank of America
  • whether Chevron, Chubb, or other core positions were increased again
  • whether the company started putting more of its record cash pile to work
  • whether any new positions appeared under the post-Buffett leadership structure

For the bigger cash backdrop behind all of this, read our updated Berkshire Hathaway cash position March 2026 guide.

What the February 2026 Berkshire filing already showed

The most recent Berkshire 13F, filed on February 17, 2026, covered the quarter that ended December 31, 2025. The headline moves included:

  • continued trimming in Apple
  • another reduction in Bank of America
  • increased positions in names like Chevron and Chubb
  • a still-enormous Berkshire cash balance that remained above $300 billion

Those moves reinforced the same message investors have been getting for months: Berkshire is still acting selective, patient, and valuation-sensitive.

If you want the broader holdings context beyond one filing, see our Berkshire Hathaway portfolio 2026 analysis.

What to watch in Berkshire's Q1 2026 13F

The next filing matters less because of any single trade and more because of what it says about capital allocation. The biggest questions are straightforward:

1. Did Berkshire deploy the cash pile?

Investors are still searching heavily for Berkshire's latest cash position and cash reserves. If the next 13F shows larger common-stock additions, it could signal that Berkshire finally found better opportunities in Q1.

2. Did the portfolio stay concentrated?

Berkshire's top holdings still dominate the portfolio. If that remains true, it supports the idea that Abel's era is starting with continuity, not a portfolio overhaul.

Insurance remains the core Berkshire engine because float funds so much of the company's investment flexibility. If you want to understand why that matters, our best insurance stocks for 2026 guide explains the float economics Buffett built around.

How to use Berkshire's 13F without overreacting

The biggest mistake investors make with Berkshire filings is treating them like real-time buy alerts. They are not. By the time the filing is public, the trades are already old.

The better use case is this:

  • use the 13F to spot Berkshire's highest-conviction sectors and themes
  • compare new adds or trims with Berkshire's cash position and market backdrop
  • study why the business fits Buffett-style moat logic instead of blindly copying the ticker

That approach is much closer to how long-term investors should actually use Berkshire disclosures.

Bottom line

Berkshire Hathaway's next 13F filing date in 2026 should be May 15, 2026. Until then, the biggest signals still come from Berkshire's record cash position, the last Q4 2025 filing, and whether the portfolio starts changing more meaningfully under Greg Abel.

If you want to follow the story from all angles, pair this date guide with our analysis of Berkshire's latest cash position, the February 2026 13F filing, and the full Berkshire Hathaway portfolio in 2026.