Rambus Inc. (RMBS)

Luc Seraphin has been president and chief executive since October 2018, and was interim chief executive from June 2018 to October 2018. He came up through the business: before the top job he ran the Memory and Interface Division, which develops the company's memory architectures and high-speed serial link work, and before that he was senior vice president of worldwide sales and operations. He began as a field application engineer at NEC, then joined AT&T Bell Labs, which became Lucent Technologies and Agere Systems, now Broadcom; he spent 18 years at Agere and finished there as executive vice president and general manager of the wireless business unit. On the record this site holds, he has filed as an officer and a director since 2018. 1234

The finance seat changed hands during 2026. Desmond Lynch had been chief financial officer since August 2022, after serving as vice president of finance. On February 4, 2026 he notified the company that he was resigning, effective February 27, 2026, to pursue another professional opportunity, and the company appointed John Allen, its chief accounting officer, as vice president and interim chief financial officer, with Allen keeping the accounting role as well. On the record this site holds, Sumeet Gagneja first filed as senior vice president and chief financial officer in 2026. 564

Sean Fan has been executive vice president and chief operating officer since November 2024, and was senior vice president and chief operating officer from August 2019. Before Rambus he led the computing and communications group at Integrated Device Technology, from May 2017 until Renesas Electronics Corporation bought it in March 2019. John Shinn has been senior vice president, general counsel, corporate secretary and chief compliance officer since February 2021, and was vice president and deputy general counsel from October 2016. The board is long serving on the record this site holds: Eric B. Stang has filed as a director since 2008 and Charles Kissner since 2012, with Victor Peng the newest, first filing in 2026. That record carries 28 people in all, 13 of them filing in the last fifteen months. 7894

At the end of 2025 the company had 791 employees, about 47% of them in the United States and 53% in other regions, among them Bulgaria, Canada, China, Finland, France, India, the Netherlands, South Korea and Taiwan. About 71% were engineers, the rest in sales and in general and administrative roles, and none are covered by collective bargaining agreements. Research and development cost 187.7 million dollars in 2025, against 162.9 million in 2024 and 156.8 million in 2023, and the company says it expects to keep putting substantial funds into it. 1011