Billionaire investor Warren Buffett hinted in March that Berkshire Hathaway had made a small addition to its portfolio. A new regulatory filing may have just revealed what he was referring to.

When asked in March whether Berkshire was still putting money to work, Buffett said the conglomerate had made “one tiny purchase” but was still struggling to find attractive opportunities.

“Got one tiny purchase, but we aren’t finding things that — we weren’t finding them before,” Buffett said at the time in an interview with CNBC’s Becky Quick.

A regulatory filing released Friday showed Berkshire initiated a roughly $55 million position in Macy’s during the first quarter — a sliver of a portfolio valued at more than $300 billion and a size that would fit Buffett’s description of a “tiny” investment.

By contrast, Berkshire’s other newly disclosed position during the quarter was far larger: a roughly $2.6 billion stake in Delta Air Lines, making it an unlikely candidate for the modest purchase Buffett referenced in March.

Still, investors may not have the full picture. Berkshire’s quarterly equity filings only capture U.S.-listed positions that meet reporting requirements, leaving open the possibility that Buffett was referring to an international investment or another holding not reflected in Friday’s disclosure.

Buffett, who stepped down as Berkshire’s chief executive at the start of 2026 and handed the role to Greg Abel, said earlier this year that he remains deeply involved in overseeing investments and market activity.

The 95-year-old said he still comes into the office daily and works alongside colleagues on trading decisions. Buffett described regularly speaking with Berkshire’s director of financial assets, Mark Millard, before the opening bell to discuss market developments.

Millard, whose office Buffett said sits about 20 feet away from his own, executes trades based on those conversations, underscoring Buffett’s continued role in portfolio management despite the leadership transition.

“I won’t make any [investments] that Greg thinks are wrong. … Greg gets the sheet every day,” Buffett said.

In the first quarter, Berkshire also sold a slew of stocks including Mastercard and Visa in an effort to unwind positions tied to Todd Combs, the longtime investment manager and Geico chief who left for JPMorgan at the end of 2025. Ted Weschler, the other investment manager, continues to oversee about 6% of the holdings.