By Connor Hart

Shares of Mosaic fell after the chemical company said fertilizer demand declined well beyond normal seasonal softness in the fourth quarter.

The stock declined 5.4% to $26.09 in premarket trading Friday. Shares were up about 3% over the past 12 months through Thursday's close, though they are down about 6% over the past three months.

Mosaic said before the bell that the challenging market environment significantly impacted its fourth-quarter performance.

Overall North American phosphate-market shipments are estimated to have been down about 20% in the recent quarter, compared with a year earlier, the company said. North American potash demand was also negatively affected, though only modestly, it said.

Mosaic forecast phosphate sales volumes of roughly 1.3 million tons for the quarter, and potash sales volumes at about 2.2 million tons. The company plans to release its full fourth-quarter results on Feb. 24.

Despite the weak fourth quarter, Mosaic said 2026 is positioned to be more constructive. Growers are expected to replenish nutrients removed by last year's strong crop, and additional government support payments are poised to stimulate demand for the North American spring application period, the company noted.

Write to Connor Hart at connor.hart@wsj.com

(END) Dow Jones Newswires

January 16, 2026 07:43 ET (12:43 GMT)

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