Treasury Wine Estates Ltd's stock plummeted 5.10% during intraday trading on Wednesday, following the announcement of key executive changes and ongoing financial pressures.

The winemaker announced that Chief Financial and Strategy Officer Stuart Boxer will retire, effective September 30. This news comes on the heels of the company reporting a significant interim loss of A$649.4 million, driven by a A$770.5 million impairment on its U.S. assets. Additionally, the company has suspended its interim dividend to preserve cash and manage debt levels.

Further pressure comes from the company's position as one of the most shorted stocks on the Australian bourse, with 14.25% of its shares reported as short positions. Treasury Wine Estates also faces challenges in its key markets, including softer demand in China and distribution issues in California amid a broader shift away from alcohol in the U.S.