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MRSN Latest Press Releases

-- January 6, 2026 --

Day One Completes Acquisition of Mersana Therapeutics Globe Newswire 9:02 AM

-- December 23, 2025 --

Halper Sadeh LLC Encourages UDMY, ALEX, UBFO, MRSN Shareholders to Contact the Firm to Discuss Their Rights PRNewswire 6:55 PM

-- December 18, 2025 --

Halper Sadeh LLC Encourages MRSN, CSGS, RYI, GDOT Shareholders to Contact the Firm to Discuss Their Rights Globe Newswire 3:21 PM

-- December 17, 2025 --

Halper Sadeh LLC Encourages MRSN, CDTX, RYI Shareholders to Contact the Firm to Discuss Their Rights PRNewswire 12:06 PM

-- December 16, 2025 --

Shareholder Alert: The Ademi Firm continues to investigate whether Mersana Therapeutics Inc. is obtaining a Fair Price for its Public Shareholders PRNewswire 11:31 AM

-- December 14, 2025 --

Halper Sadeh LLC Encourages FFWM, MRSN, FSUN Shareholders to Contact the Firm to Discuss Their Rights Globe Newswire 1:10 PM

-- December 12, 2025 --

Mersana Therapeutics Investor Alert By The Former Attorney General Of Louisiana: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Mersana Therapeutics, Inc. - MRSN PRNewswire 4:42 PM

-- December 10, 2025 --

Halper Sadeh LLC Encourages CADE, MRSN, CDTX Shareholders to Contact the Firm to Discuss Their Rights Globe Newswire 3:01 PM

-- December 8, 2025 --

Halper Sadeh LLC Encourages MRSN, CDTX, RYI Shareholders to Contact the Firm to Discuss Their Rights Globe Newswire 3:24 PM
$HAREHOLDER ALERT: The M&A Class Action Firm Continues to Investigate the Merger--SMLR, MRSN, CDTX, and RYI PRNewswire 2:40 PM

-- November 28, 2025 --

Halper Sadeh LLC Encourages SEMR, EXAS, MRSN Shareholders to Contact the Firm to Discuss Their Rights PRNewswire 12:41 PM

-- November 27, 2025 --

HAPPY THANKSGIVING AND INVESTOR ALERT: The M&A Class Action Firm Continues to Investigate the Merger - EXAS, SEE, CDTX, and MRSN PRNewswire 11:11 PM
Halper Sadeh LLC Encourages SEE, EXAS, MRSN Shareholders to Contact the Firm to Discuss Their Rights Globe Newswire 6:48 PM

-- November 17, 2025 --

Halper Sadeh LLC Encourages RPTX, SEE, CDTX, MRSN Shareholders to Contact the Firm to Discuss Their Rights PRNewswire 12:00 PM

-- November 16, 2025 --

Mersana Therapeutics Investor Alert By The Former Attorney General Of Louisiana: Kahn Swick & Foti, LLC Investigates Adequacy of Price and Process in Proposed Sale of Mersana Therapeutics, Inc. - MRSN Business Wire 7:04 PM

-- November 14, 2025 --

Halper Sadeh LLC Encourages CDTX, MRSN, HOLX Shareholders to Contact the Firm to Discuss Their Rights PRNewswire 3:19 PM
Halper Sadeh LLC Encourages MRSN, THS, HBAN Shareholders to Contact the Firm to Discuss Their Rights Globe Newswire 7:46 AM
Mersana Therapeutics Provides Business Update and Announces Third Quarter 2025 Financial Results Globe Newswire 7:00 AM

-- November 13, 2025 --

Shareholder Alert: The Ademi Firm investigates whether Mersana Therapeutics Inc. is obtaining a Fair Price for its Public Shareholders PRNewswire 11:35 AM
MRSN Stock Alert: Halper Sadeh LLC is Investigating Whether the Sale of Mersana Therapeutics, Inc. is Fair to Shareholders Business Wire 8:12 AM
Day One Biopharmaceuticals to Acquire Mersana Therapeutics Globe Newswire 6:00 AM

-- November 10, 2025 --

Mersana Therapeutics to Host Third Quarter 2025 Conference Call on November 14, 2025 Globe Newswire 8:00 AM

-- August 13, 2025 --

Mersana Therapeutics Provides Business Update and Announces Second Quarter 2025 Financial Results Globe Newswire 7:00 AM
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