Tower Semiconductor Ltd. — Regulatory Filings 2026

Mar 23, 2026

Tower Semiconductor and Coherent Demonstrate 400Gbps/lane Data Transmission with a Silicon Modulator in a Production-Ready Sipho Process false

טאואר סמיקונדקטור בע"מ	2 380
TOWER SEMICONDUCTOR LTD
Corporation no: 520041997	15535
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	Israel Securities Authority			Tel Aviv Stock Exchange		C002 ( Public )		Reported via MAGNA:	23/03/2026
	www.isa.gov.il			www.tase.co.il				Reference:	2026-02-025737	Time of broadcast: 12:01 12:01

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The corporation scheduled the publication of the report to 23/03/2026 13:00Immediate ReportRegulation 4 of the Securities Regulations, (Periodic and Immediate Reports of Foreign Corporation) 5761-2000

	The corporation is a foreign private issuer as defined by U.S. Securities Laws.

Attached hereto is a report onTower Semiconductor and Coherent Demonstrate 400Gbps/lane Data Transmission with a Silicon Modulator in a Production-Ready Sipho Process

Coherent_Tower_400G_PR_FINAL03232026_isa.pdf

References of previous documents relating to this matter(the reference does not constitute incorporation by reference):
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Stock Exchange/Market: NASDAQ	Date of revision of form structure: 06/08/2024
Address: P.O.B 619 , Migdal Haemek 23105   , Tel: 04-6506611 , 04-6506670 Fax: 04-6547788
E-mail address: natiso@towersemi.com
Previous names of reporting entity:
Name of the Signatory: Tamuz Bella Position of Signatory in the reporting corporation: Business Development Manager Name of Employer Company:
Address: Shaul Amor St 20 , Migdal Haemek 2310502 Telephone: 052-6681266 Facsimile: E-mail: Bella.Tamoz@towersemi.com 2