Tessera Inc. · NYSE American: HLSQ

Management

The Tessera leadership team combines public-company M&A and capital markets experience with operational depth drawn from Israel's defense and intelligence community.

Executive Officers

Leadership

Michael Oster and David Rokach are the Company's executive officers for purposes of its filings with the U.S. Securities and Exchange Commission.

Michael Oster

Chief Executive Officer

Age 54 · Officer since March 2026

Mr. Oster was appointed Chief Executive Officer effective March 4, 2026. He brings extensive experience in corporate strategy, mergers and acquisitions, and operational leadership across capital-intensive industries including energy, infrastructure and industrial sectors. Since 2024 he has served as Chief Executive Officer and a director of Saffron Tech Ltd. and its parent company Sattivus Tech Corporation (OTC: SATT), and has served as a director of BladeRanger Ltd. (TASE: BLRN), an Israeli innovator in advanced drone payload systems for defense, homeland security and solar applications. From 2018 to 2024 he was a principal of a Dallas, Texas real estate entity focused on multi-family acquisitions. From 2003 to 2017 he served as Senior Vice President of Mergers and Acquisitions at Alon USA Energy, Inc. (NYSE: ALJ), leading strategic transactions during the company's growth to approximately $8 billion in revenue.

David Rokach

Chief Financial Officer, Principal Financial Officer and Principal Accounting Officer

Age 58 · Officer since February 2026

Mr. Rokach was appointed Chief Financial Officer effective February 27, 2026. He has served as a director of T3 Defense Inc. (Nasdaq: DFNS), formerly Nukkleus Inc., a strategic acquirer and operator of aerospace and defense businesses, since 2024. From 2017 to 2025 he served as Chief Executive Officer, partner and senior manager of Newcom Finance, a financial services firm focused on pension fund management and portfolio construction. From 2021 to 2023 he served as Chief Executive Officer of Granit Investment Company. He brings extensive experience in executive leadership, public company governance and investment strategy.

Roy Timor-Rousso

Chief Business Officer

Colonel (Res.), IDF Golani Infantry Brigade

Mr. Timor-Rousso leads business development across the Company's subsidiaries. A former Colonel (Res.) in the IDF's Golani infantry brigade, he brings operational leadership and defense-sector growth expertise to the coordination of commercial activity across the Tessera portfolio.

Advisory Board

Advisors

The Company's advisory board brings senior operating and technical experience from Israel's defense, intelligence and electro-optics sectors. Advisory board members are not executive officers or directors of the Company.

Prof. Gabby Sarusi

Advisory Board

Former Vice President of Elbit Systems and Professor of Electro-Optics and Photonics Engineering at Ben-Gurion University of the Negev. Prof. Sarusi advises on sensing, electro-optics and detection technology across the portfolio.

Dr. Ehud Levi

Advisory Board

Former Deputy Head of the Mossad. Dr. Levi advises on national security strategy, defense market access and the Company's positioning across intelligence and homeland security customers.