Welcome to our dedicated page for Rambus Del SEC filings (Ticker: RMBS), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Rambus Inc. filings document the reporting obligations of a Nasdaq-listed semiconductor company with common stock registered under the Exchange Act. Recent 8-K reports disclose operating and financial results, earnings-release exhibits, executive appointments and departures, board matters, and other material-event updates tied to the company’s chips, silicon IP, licensing, and product revenue model.
Proxy and shareholder-vote filings describe director elections, auditor ratification, executive compensation votes, governance practices, and voting outcomes from annual meetings. The filing record also includes capital-structure disclosure for Rambus common stock, material agreements and governance matters, and formal exhibits that support the company’s periodic financial and corporate-event reporting.
Rambus Inc. announced that Chief Financial Officer Desmond Lynch will resign effective February 27, 2026 to pursue another professional opportunity. The company states his departure is not related to any disagreement over operations, policies, or practices.
In connection with his departure, Rambus has appointed John Allen, its current Vice President, Accounting and Chief Accounting Officer, as Vice President, Interim Chief Financial Officer. Allen, age 62, will retain his Chief Accounting Officer role and currently receives an annual base salary of $383,985 with a target bonus of $153,594, and eligibility for annual equity grants.
The company has begun a formal search for a permanent CFO and highlights confidence in its finance organization during the transition. Separately, Rambus is reaffirming its previously issued financial guidance for the first quarter of fiscal 2026, signaling no change to its short-term outlook alongside this leadership change.
Rambus Inc. SVP and General Counsel John Shinn reported equity compensation activity and related tax withholding. On February 1, 2026, he acquired 17,276 shares of common stock at $0 through performance restricted stock units that vest based on company performance and continued service. On the same date, 9,884 shares at $113.71 per share were withheld to cover his tax liability from restricted stock unit vesting. After these transactions, Shinn directly owned 27,580 shares of Rambus common stock.
Rambus Inc. SVP and CFO Desmond Lynch reported equity-related transactions in company common stock. On February 1, 2026, he acquired 34,554 shares at $0 upon vesting of performance restricted stock units tied to company metrics and continued service. On the same date, 22,105 shares were withheld at $113.71 per share to satisfy tax obligations from restricted stock vesting. After these transactions, Lynch directly owned 67,891 shares of Rambus common stock.
Rambus Inc. President and CEO Seraphin Luc reported equity compensation and related tax withholding in company stock. On February 1, 2026, he acquired 143,744 shares of common stock at $0 per share, represented by performance restricted stock units that vest based on company performance metrics and continued service through February 1, 2026.
On the same date, 92,523 shares of common stock were withheld at a price of $113.71 per share to satisfy his tax liability arising from the vesting of restricted stock units. After these transactions, he directly beneficially owned 370,984 shares of Rambus common stock, including 522 shares acquired through the Rambus Inc. 2015 Employee Stock Purchase Plan.
Rambus executive EVP, COO Fan Xianzhi Sean reported equity compensation activity in company stock. On February 1, 2026, he acquired 148,802 shares of Rambus common stock at $0 per share through vesting of performance restricted stock units, each representing one share.
On the same date, 92,403 shares were withheld at $113.71 per share to cover tax liabilities related to restricted stock unit vesting. After these transactions, he directly beneficially owned 193,954 shares of Rambus common stock.
Rambus Inc. filed a current report to disclose that it issued an earnings press release for the quarter ended December 31, 2025. The company furnished this press release as an exhibit and specified that it is not treated as filed for liability purposes under the Exchange Act.
BlackRock, Inc. has filed an amended Schedule 13G reporting beneficial ownership of 15,060,232 shares of Rambus Inc. common stock, representing 14.0% of the outstanding class. BlackRock reports sole power to vote 14,776,143 shares and sole power to dispose of 15,060,232 shares, with no shared voting or dispositive power.
The filing reflects holdings by certain BlackRock business units, while other disaggregated units are excluded. Various underlying persons have rights to dividends or sale proceeds, but no single person has more than five percent of Rambus’s outstanding common shares. BlackRock certifies that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Rambus.
Rambus Inc. executive reports small stock gift
A Rambus Inc. (RMBS) executive who serves as EVP and COO reported a bona fide gift of 300 shares of Rambus common stock on November 21, 2025. The transaction was reported on a Form 4 as a disposition coded "G" at a price of $0, indicating it was a gift rather than a sale. After this transaction, the executive beneficially owns 137,555 shares of Rambus common stock, held directly.
Rambus Inc. executive Brian Wu, EVP and COO, reported a Form 4 transaction reflecting a bona fide gift of company stock. On 11/19/2025, Wu disposed of 300 shares of Rambus common stock as a gift at a reported price of $0.00, meaning he received no compensation for the transfer. Following this transaction, he beneficially owned 137,855 shares in direct ownership. The filing notes explicitly that no compensation was given in relation to the gift.
Rambus Inc. (RMBS) director reported open‑market sales of common stock. On 11/07/2025, the reporting person sold 5,000 shares at a weighted average price of $102.352, with trades ranging from $102.343 to $102.455. On 11/10/2025, an additional 4,000 shares were sold at an exact price of $111.785.
After these transactions, 20,394 shares were indirectly beneficially owned, held by the Stang Family Trust for which the reporting person serves as a trustee.