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Assenagon Asset Management S.A. lifted its holdings in Insmed, Inc. (NASDAQ: INSM) by 76.1% during the undefined quarter, according to the company in its most recent Form 13F filing with the Securitie
Mizuho's Jared Holz joins 'Fast Money' to talk Insmed shares tanking on discontinuing development of sinus drug.

Why Is Insmed Stock Falling Thursday?

12:30pm, Thursday, 18'th Dec 2025
Insmed Incorporated (NASDAQ: INSM) stock plunged on Thursday.
Insmed sinks nearly 20% after Brinsupri failed a phase IIb sinus study, while the company adds a new monoclonal antibody asset to expand its pipeline.
U.S. stock futures were higher this morning, with the Dow futures gaining around 100 points on Thursday.
The biopharmaceutical company said it was discontinuing development of a drug treating a chronic sinus condition.
Insmed stock crumbled late Wednesday after the highly rated biotech company scrapped one of its brensocatib studies.
Insmed said on Wednesday it had discontinued the development of its experimental anti-inflammatory drug to treat a chronic sinus condition after it failed to show benefit in a mid-stage study, sending

Insmed Provides Clinical and Business Update

04:01pm, Wednesday, 17'th Dec 2025
—Phase 2b BiRCh Study of Brensocatib in CRSsNP Did Not Meet Primary or Secondary Efficacy Endpoints; Safety Consistent with Previous Studies; Insmed Discontinues CRSsNP Program— —Company Acquire
The Nasdaq-100 Index has announced its annual reconstitution, with six new companies being added and six being removed, effective December 22, 2025.
Castleark Management LLC trimmed its position in shares of Insmed, Inc. (NASDAQ: INSM) by 94.2% in the undefined quarter, according to its most recent disclosure with the SEC. The institutional invest
Alkeon Capital Management LLC purchased a new stake in shares of Insmed, Inc. (NASDAQ: INSM) during the second quarter, according to the company in its most recent 13F filing with the Securities and E
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