How do I get notified when Berkshire Hathaway makes a stock trade?

Enter your email on this page and confirm it. It's free. We check the SEC's EDGAR system every day and email you when Berkshire Hathaway reports buying or selling stock, in a Form 4 or its quarterly 13F. Every email has a one-click unsubscribe.

Yes. Enter your email, confirm it, and you'll get an alert for each new filing.

For a Form 4: the stock, shares bought or sold, the prices paid, and the stake afterwards. For a 13F: new positions, bigger and smaller ones, and full exits.

Why is the 13F so late?

Managers have 45 days after each quarter to file, and a 13F shows holdings on the last day of the quarter, not the day each trade happened.

Every email has an unsubscribe link that works in one click.

Know When Berkshire Hathaway Trades.

Get an email when Berkshire Hathaway reports buying or selling stock: the company, the shares, the prices, and how big the stake is now. Free.

Updated September 28, 2026. Latest filing disclosed August 14, 2026. We check for new filings every morning.

View Berkshire Hathaway's Portfolio

Ranked #14 of 19 on the Fund Manager Leaderboard: stocks Berkshire Hathaway added in 13F filings are up -1.9%, against 4.7% for the S&P 500 over the same dates. See the leaderboard

Form 4: Changes in Beneficial Ownership SEC

Berkshire Hathaway Inc, issuer Lennar Corp (LEN)

Security	Date	Code	Shares (A)	Price
Class A Common Stock	09/17/2026	P	410,164	$79.41
Class A Common Stock	09/18/2026	P	1,218,429	$76.39
Class A Common Stock	09/21/2026	P	483,809	$77.97
13 more rows

Amount owned after: 23,719,109 Class A shares.

becomes

Berkshire Hathaway bought $212M of Lennar

Bought LEN Class A shares $206.7M 2,668,508 shares at $76.39–$79.41, avg $77.46. Now owns 23.7M.
Bought LEN.B Class B shares $5.7M

Traded Sep 17–21, filed Sep 21: the same day as the last purchase.

Big stakes, reported within days

When Berkshire owns more than 10% of a company, it has to report each trade in that stock on a Form 4 within two business days.

Everything else, quarterly

The full portfolio comes out in a 13F within 45 days of each quarter's end. The alert leads with what's new, what grew, what shrank, and what was sold.

Straight from the SEC

No middleman data feed. We check EDGAR, the SEC's public filing system, every day and link each alert to the original filing.

Questions

How do I get notified when Berkshire Hathaway makes a stock trade?: Enter your email on this page and confirm it. It's free. We check the SEC's EDGAR system every day and email you when Berkshire Hathaway reports buying or selling stock, in a Form 4 or its quarterly 13F. Every email has a one-click unsubscribe.
Is it free?: Yes. Enter your email, confirm it, and you'll get an alert for each new filing.
What's in an alert?: For a Form 4: the stock, shares bought or sold, the prices paid, and the stake afterwards. For a 13F: new positions, bigger and smaller ones, and full exits.
Why is the 13F so late?: Managers have 45 days after each quarter to file, and a 13F shows holdings on the last day of the quarter, not the day each trade happened.
How do I stop?: Every email has an unsubscribe link that works in one click.

Get the Next Filing in Your Inbox

Based on public SEC filings. GetMarketAlerts isn't affiliated with Berkshire Hathaway. Information only, not financial advice.