Mersana Therapeutics Inc. reported a net loss of $7.5 million, or $1.51 per share, for the third quarter of 2025, compared to a net loss of $11.5 million, or $2.34 per share, in the same period of 2024. General and administrative expenses for the third quarter of 2025 were $6.3 million, down from $9.9 million in the third quarter of 2024. As of September 30, 2025, cash, cash equivalents, and marketable securities totaled $56.4 million, compared to $134.6 million at December 31, 2024. The company announced it has entered into an agreement to be acquired by Day One Biopharmaceuticals Inc., with closing expected by the end of January 2026.
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