Berkshire Hathaway Has Been Selling. Here's the 1 Stock It's Still Buying.

Last week, Berkshire Hathaway (BRKA +1.43%) (BRKB +1.33%) submitted its latest 13-F with the Securities and Exchange Commission (SEC), disclosing its positions in U.S.-listed stocks. This latest 13-F filing is interesting for several reasons. For starters, as the report covers changes to the portfolio made during the first quarter of 2026, it reveals changes made since Greg Abel succeeded legendary investor Warren Buffett as CEO at the start of this year.

Second, while Abel has made some noticeable changes to Berkshire's stock portfolio, he has made a big leap back into one of the holding company's past equity holdings. That is, after famously dumping it alongside other airline stocks in 2020, Berkshire Hathaway is once again long Delta Airlines (DAL +0.65%) shares.

Image source: The Motley Fool.

Berkshire's portfolio: Big changes after Abel takes the helm

Greg Abel, now in Warren Buffett's seat, has so far made fairly small changes. Berkshire still owns its scores of wholly owned subsidiaries. Long-term stock holdings in names like Coca-Cola and Apple remain untouched.

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NYSE: BRKB

Berkshire Hathaway

Today's Change

(1.33%) $6.40

Current Price

$486.38

Key Data Points

Market Cap

$1.0T

Day's Range

$479.49 - $487.19

52wk Range

$455.19 - $516.85

Volume

4.3M

Avg Vol

4.8M

Gross Margin

23.70%

That said, Abel closed many of Berkshire's most recent long-term stock positions. These include longtime Warren Buffett investments in Amazon, Domino's Pizza, Mastercard, UnitedHealth, and Visa. However, alongside these major sales, Berkshire, under Abel's direction, has made a major buy. It now owns 6.1% of Delta Airlines, a position worth nearly $3 billion.

Key takeaways from this unexpected buy

While Berkshire's investment back into Delta shares changes the portfolio only slightly, there is one key takeaway: Its view of Delta has changed dramatically. Remember back in 2020, when, amid the COVID-19 pandemic, Berkshire dumped all of its airline stocks? Then again, the industry has since evolved dramatically.

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NYSE: DAL

Delta Air Lines

Today's Change

(0.65%) $0.49

Current Price

$76.14

Key Data Points

Market Cap

$50B

Day's Range

$75.51 - $77.10

52wk Range

$45.28 - $77.10

Volume

6.4M

Avg Vol

11.4M

Gross Margin

16.93%

Dividend Yield

0.99%

Post-pandemic, the U.S. airline industry has tapped into trends like premiumization to sustain demand, even amid challenges like high inflation and the recent spike in fuel costs. With these changes, perhaps Abel, and by extension Buffett, who remains chairman, believes that Delta has developed a durable competitive advantage, something Buffett has previously said has proven elusive for airlines "since the days of the Wright Brothers."

BRKB1.21%
DAL0.86%
KO0.54%
AMZN-0.66%
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