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Rambus Inc. reported strong Q3 2025 results driven by memory interface chips. Revenue reached $178.5 million, up from $145.5 million a year ago. Product revenue set a quarterly record at $93.3 million, with royalties at $65.1 million and contract and other revenue at $20.1 million. Gross profit was $141.9 million and operating income was $63.3 million. Net income was $48.4 million, or diluted EPS of $0.44.
For the nine months, revenue totaled $517.4 million and operating cash flow was $260.2 million. Cash, cash equivalents and marketable securities were $673.3 million as of September 30, 2025. Shares outstanding were 107,650,133 as of September 30, 2025. The company repurchased 0.1 million shares for approximately $5.8 million year-to-date under its 2020 program, with authorization remaining for about 5.6 million shares.
Geographically in Q3, revenue included $91.7 million from South Korea and $37.6 million from Singapore. The company recorded an uncertain tax position reserve tied to South Korea withholding tax refund claims, reducing related long-term tax receivables and payables to zero with no tax expense impact in the period.
Rambus Inc. (RMBS) furnished an 8-K to announce results for the quarter ended September 30, 2025. The company issued an earnings press release, which is attached as Exhibit 99.1 and incorporated by reference.
The Item 2.02 information is stated as furnished, not filed under the Exchange Act, and therefore is not subject to Section 18 liabilities nor automatically incorporated into other filings. The submission also includes Exhibit 104 for the Inline XBRL cover page. The report is dated October 27, 2025.
Rambus Inc. reported a proposed sale under Rule 144 of 9,074 common shares held as performance shares that were acquired on
Rambus, Inc. (RMBS) insider Form 4 shows SVP and CFO Desmond Lynch sold shares under a pre-established Rule 10b5-1 trading plan adopted on
Rambus Inc. (RMBS) director Meera Rao reported a sale of common stock under a Rule 10b5-1 plan. The Form 4 shows a transaction dated 10/01/2025 in which 653 shares were sold at $101.99 per share, and following the sale Ms. Rao beneficially owns 29,261 shares directly. The filing notes the sale was effected pursuant to a 10b5-1 trading plan adopted May 30, 2025. The Form 4 is signed by power of attorney on 10/02/2025. The filing contains only this single non-derivative disposition and no other compensatory or derivative transactions are reported.
Form 144 notice for RMBS (Rambus Inc) sale activity. The filing lists a proposed sale of 653 common shares via Morgan Stanley Smith Barney LLC on 10/01/2025 with an aggregate market value of $66,599.47. The shares were acquired as restricted stock from the issuer on 04/03/2024 and payment/consideration is listed as Not Applicable. The filer also reported a prior sale of 3,000 common shares on 09/02/2025 that generated $215,160.00 in gross proceeds. Several form fields that normally identify the filer (CIK/CCC), the issuer name, and submission contact details are left blank in the provided content.
Desmond Lynch, SVP and Chief Financial Officer of Rambus Inc. (RMBS), reported an insider sale. On 09/15/2025 he disposed of 9,074 shares of Rambus common stock at a weighted average price of $91.7014, with transaction prices ranging from $88.125 to $94.50. After the sale, he beneficially owned 64,430 shares. The filing states the sale was effected under a Rule 10b5-1 trading plan adopted on 06/13/2025.
Rambus Inc. (RMBS) Form 144: An individual filer notified the proposed sale of 7,500 common shares, with an aggregate market value of $642,225.75, aiming to sell on or about 09/11/2025 on NASDAQ. The securities were acquired by exercising options on 11/08/2023 and paid in cash. The filing discloses a prior sale of 7,500 shares on 08/08/2025 that generated gross proceeds of $551,447.25. The filer affirms no undisclosed material adverse information and includes the required attestations for Rule 144 compliance.
Meera Rao, a director of Rambus Inc. (RMBS), reported a sale of 3,000 shares of the issuer's common stock on 09/02/2025 at an exact price of $71.72 per share under a previously adopted Rule 10b5-1 trading plan dated May 30, 2025. After the reported disposition, Ms. Rao beneficially owned 29,914 shares, held directly. The Form 4 was signed by Brian Wu by power of attorney on 09/04/2025.
This disclosure is a routine insider sale documented under an executing trading plan; the filing specifies the transaction date, price, and post-transaction share count without additional context about timing or intent.
Rambus Inc. officer Desmond Lynch reported a Form 4 disclosing a September 1, 2025 transaction in the company's common stock. The filing shows 2,725 shares were withheld at a price of $73.485 to cover tax withholding related to the vesting of restricted stock units. After the withholding, the reporting person beneficially owned 73,504 shares, which includes an exempt acquisition of 431 shares through Rambus's 2015 Employee Stock Purchase Plan. The Form 4 was signed by a power of attorney on behalf of the reporting person on September 3, 2025.
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