What is an accelerated share repurchase (ASR)?

An ASR is a structured buyback mechanism where a company pre-pays a financial institution for shares and receives an initial tranche immediately, while the dealer purchases additional shares in the open market at a discount to VWAP over the program term. The final number of shares received depends on execution prices during the hedge period. ASRs typically complete faster than traditional open-market repurchases.

Why did Rambus choose an ASR over open-market purchases?

The filing does not specify Rambus's rationale for choosing ASR over Rule 10b-18 open-market purchases. However, ASRs are commonly used when companies want to execute large repurchases efficiently and reduce execution risk, which aligns with CEO commentary on disciplined capital allocation.

How many shares will Rambus actually repurchase?

Rambus will receive an initial 796,000 shares upfront. The final total depends on the VWAP of Rambus stock during the transaction and the negotiated discount; this amount will not be known until the program completes by the end of Q3 2026.

Was this a new authorization or execution under an existing program?

This is an execution under a previously authorized share repurchase program approved by the Rambus Board of Directors. The filing does not disclose the total size or remaining balance of the broader authorization.

When will the ASR program be completed?

Rambus expects the accelerated share repurchase program to be completed by the end of the third quarter of 2026, meaning September 30, 2026 at the latest.

Who is managing the repurchase?

Mizuho Markets Americas LLC, through its agent Mizuho Securities USA LLC, is the dealer executing the ASR program on behalf of Rambus. Mizuho will manage the open-market purchases and settlement of shares.

RMBS 8-K Filed 2026-08-05 Execution disclosure

Rambus initiates $100M accelerated share repurchase program

Semiconductor company launches ASR with Mizuho; initial delivery of ~796K shares expected by Q3 2026

Shares repurchased796K

MechanismAccelerated Share Repurchase

What the filing says

Rambus Inc. (NASDAQ: RMBS) announced on August 5, 2026 that it initiated an accelerated share repurchase (ASR) program with Mizuho Markets Americas LLC to repurchase approximately $100 million of its common stock. The company will pre-pay $100 million to the dealer and receive an initial delivery of approximately 796,000 shares.

The final number of shares repurchased will be determined based on the volume-weighted average price (VWAP) of Rambus common stock during the transaction term, less a discount. The ASR program is expected to be completed by the end of the third quarter of 2026.

According to CEO Luc Seraphin, the repurchase "reflects our confidence in the business and reinforces our commitment to disciplined capital allocation." The company cited the strength of its balance sheet and continued cash generation as supporting factors. The ASR is part of a broader share repurchase program previously authorized by the Rambus Board of Directors.

Rambus will pre-pay $100 million to Dealer and receive an initial delivery of approximately 796,000 shares of its common stock. The final number of shares to be repurchased will be determined based on the volume-weighted average price of Rambus common stock during the term of the transaction, less a discount. — RAMBUS INC 8-K filing · View on SEC EDGAR →

What this means

Rambus executed a $100 million accelerated share repurchase rather than announcing a new authorization. The ASR mechanism allows the company to receive approximately 796,000 shares upfront while the dealer hedges by purchasing shares in the open market at VWAP over the program's term. The final share count will depend on stock price volatility and the negotiated discount. As an execution under an existing board authorization, this represents capital deployment to offset dilution and return cash to shareholders, though the impact on share count depends on the final settlement price at program completion in Q3 2026.

Frequently asked questions

What is an accelerated share repurchase (ASR)?: An ASR is a structured buyback mechanism where a company pre-pays a financial institution for shares and receives an initial tranche immediately, while the dealer purchases additional shares in the open market at a discount to VWAP over the program term. The final number of shares received depends on execution prices during the hedge period. ASRs typically complete faster than traditional open-market repurchases.
Why did Rambus choose an ASR over open-market purchases?: The filing does not specify Rambus's rationale for choosing ASR over Rule 10b-18 open-market purchases. However, ASRs are commonly used when companies want to execute large repurchases efficiently and reduce execution risk, which aligns with CEO commentary on disciplined capital allocation.
How many shares will Rambus actually repurchase?: Rambus will receive an initial 796,000 shares upfront. The final total depends on the VWAP of Rambus stock during the transaction and the negotiated discount; this amount will not be known until the program completes by the end of Q3 2026.
Was this a new authorization or execution under an existing program?: This is an execution under a previously authorized share repurchase program approved by the Rambus Board of Directors. The filing does not disclose the total size or remaining balance of the broader authorization.
When will the ASR program be completed?: Rambus expects the accelerated share repurchase program to be completed by the end of the third quarter of 2026, meaning September 30, 2026 at the latest.
Who is managing the repurchase?: Mizuho Markets Americas LLC, through its agent Mizuho Securities USA LLC, is the dealer executing the ASR program on behalf of Rambus. Mizuho will manage the open-market purchases and settlement of shares.

execution asr accelerated-share-repurchase semiconductor capital-allocation mizuho

Source. This editorial summary is based on the SEC filing linked above. BuybackStocks aggregates and editorializes publicly available SEC EDGAR filings. Not investment advice. Past authorization announcements do not guarantee future repurchase activity or share price performance. See our full disclosures policy.