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 ownership filing by FMR LLC reports beneficial ownership of 11,296,794.81 shares of Common Stock, representing 10.4% of the class as disclosed with CUSIP 750917106 and dated 05/29/2026. The filing shows sole dispositive power of 11,296,794.81 shares and sole voting power of 10,756,318 shares.
The schedule notes that other persons may have rights to dividends or sale proceeds but none exceeds 5.0%. Transactions were reported on behalf of FMR LLC and Abigail P. Johnson via powers of attorney; an Exhibit 99 13d-1(k)(1) agreement is referenced.
Rambus Inc. director Necip Sayiner sold 5,000 shares of Common Stock in an open-market transaction. The shares were sold at an exact price of $170.15 each, according to the filing footnote. After this sale, Sayiner directly holds 18,223 Rambus shares.
Rambus Inc. director Emiko Higashi reported selling a total of 10,000 shares of Common Stock in open-market transactions. The sales occurred on June 2, 2026, with 5,000 shares sold at $158.00 per share and 5,000 shares sold at $163.00 per share. Following these transactions, Higashi directly holds 49,519 shares of Rambus common stock, indicating she retains a substantial equity stake after the sale.
Necip Sayiner reported a sale of common stock. The Form 144 excerpt shows a sale of 9,824 shares of Common Stock on 05/08/2026 for $1,278,888.32. The filing also lists previously issued restricted stock grants dated 04/01/2022 (3,028 shares) and 04/01/2023 (1,972 shares).
Rambus Inc. director-related trust reports open-market sale of shares. A trust associated with director Eric B. Stang, the Stang Family Trust dated September 2, 2004, sold 5,000 shares of Rambus common stock at $146.00 per share in an open-market transaction.
Following the sale, the trust held 19,218 Rambus common shares indirectly, while Stang also held 2,223 shares directly as of the reported date.
Emiko Higashi filed a Form 144 disclosing a proposed sale of 10,000 common shares through Morgan Stanley Smith Barney LLC with an entry dated 06/02/2026. The filing also lists a sale of 5,000 shares on 05/26/2026 for $787,850.50 and multiple restricted stock grants with grant dates and quantities.
RMBS submitted a Form 144 reporting proposed sales of Common Stock. The filing lists 5,000 shares with an aggregate value of $730,000.00, and two restricted stock vesting entries of 2,972 and 2,028 shares dated 04/01/2025 and 10/01/2013. The method is listed as Cash.
Rambus Inc. director Emiko Higashi reported an open-market sale of 5,000 shares of Common Stock on May 26, 2026 at an exact price of $157.5701 per share. After this transaction, Higashi directly owns 59,519 shares of Rambus common stock.
RMBS: Section 144 notice for proposed sale of 5,000 common shares.
The filing reports a Section 144 notice indicating a proposed sale of 5,000 shares of common stock, comprised of 3,824 restricted shares04/01/2026 and 1,176 restricted shares04/03/2024. The filing shows an aggregate value of $787,850.50 and is dated 05/26/2026.
Rambus EVP and COO Sean Xianzhi Fan reported selling 37,914 shares of Rambus common stock in open-market transactions. The sales occurred on May 26, 2026 at prices around $151–$152 per share, including trades at a weighted average price of $151.6896 within a range of $151.27 to $152.18, and a separate block of 100 shares at $152.35. These were routine open-market sales of directly owned shares.