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NASDAQ:CYTK News 21 December 2025 - 1 January 2026

Cytokinetics (CYTK) stock ends 2025 higher as Myqorzo launch nears — what’s next

Cytokinetics (CYTK) stock ends 2025 higher as Myqorzo launch nears — what’s next

Cytokinetics shares closed 2025 up 3.5% at $63.54 after FDA cleared Myqorzo for obstructive hypertrophic cardiomyopathy. The drug, set to launch in January under a REMS program and boxed warning, will compete with Bristol Myers Squibb’s Camzyos. Chief Commercial Officer Andrew Callos sold 1,809 shares at $62.44 each on Dec. 29 under a pre-arranged plan. U.S. markets reopen Friday after the New Year’s holiday.
1 January 2026
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Cytokinetics stock jumps today as CYTK traders focus on Myqorzo launch and insider filing

Cytokinetics stock jumps today as CYTK traders focus on Myqorzo launch and insider filing

Cytokinetics shares climbed 3.7% to $63.63 Wednesday, bucking a weaker market as investors awaited Myqorzo’s U.S. launch in January. A Form 4 showed Chief Commercial Officer Andrew Callos sold 1,809 shares at $62.44 on Dec. 29 under a pre-set plan. The drug, approved this month, will be distributed with a REMS safety program. Investors are watching for pricing details and initial uptake.
31 December 2025
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Biotechnology Stocks Week Ahead (Dec. 22–26, 2025): BioMarin–Amicus Deal, Cytokinetics FDA Win, IPO Filings, and Drug-Price Policy Risks

Biotechnology Stocks Week Ahead (Dec. 22–26, 2025): BioMarin–Amicus Deal, Cytokinetics FDA Win, IPO Filings, and Drug-Price Policy Risks

BioMarin agreed to acquire Amicus Therapeutics for $4.8 billion on Dec. 19, paying a 33% premium and adding two rare-disease drugs with $599 million in combined annual sales. The deal, plus an FDA approval for Cytokinetics and new IPO filings, drove biotech stocks higher ahead of the Christmas-shortened trading week. U.S. markets will close early Dec. 24 and remain shut Dec. 25.
21 December 2025
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Stock Market Today

Tower Semiconductor stock jumps again on Nvidia optics tie-up as earnings near

Tower Semiconductor stock jumps again on Nvidia optics tie-up as earnings near

8 February 2026
Tower Semiconductor shares rose 7.7% to $139.04 Friday after announcing a collaboration with Nvidia on AI data-center networking. The stock touched $141 intraday and gained another 1% after hours. Investors await Tower’s Feb. 11 earnings for details on its silicon photonics work. No financial terms or shipment timeline were disclosed.
Longsys Electronics stock heads into Monday after new guarantees; what 301308 investors watch next

Longsys Electronics stock heads into Monday after new guarantees; what 301308 investors watch next

8 February 2026
Longsys disclosed new guarantees for a 100 million yuan Hong Kong loan and a $9 million Brazil credit line, bringing its total approved guarantee quota to 11 billion yuan and outstanding guarantees to 5.81 billion yuan. The company said all guarantees are for consolidated subsidiaries and within approved limits. Shares closed at 288 yuan Friday, down 1.6%. China inflation and credit data are due this week.
MACOM stock price steadies near highs into Monday after earnings pop and fresh filings

MACOM stock price steadies near highs into Monday after earnings pop and fresh filings

8 February 2026
MACOM shares rose 3.5% to $235.87 Friday after the company reported fiscal Q1 revenue of $271.6 million and raised its full-year data center growth outlook to 35–40%. Fidelity’s FMR LLC disclosed a 10.7% stake, while shareholder Susan Ocampo filed to potentially sell up to 100,000 shares. Stifel raised its price target to $255. MACOM expects to repay $161 million in convertible notes in March.
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