5 Stocks with the Biggest Share Buybacks

2. Alphabet Inc. (NASDAQ:GOOGL)

Stock Buybacks in 12 Months Through September 2025: $55.75 billion

Alphabet Inc. (NASDAQ:GOOGL) faced internal debate on April 27 after more than 560 Google employees reportedly signed a letter urging CEO Sundar Pichai to block the use of company AI tools in classified U.S. military operations, according to the Financial Times. The letter cited concerns surrounding lethal autonomous weapons, surveillance, and the ethical deployment of artificial intelligence.

This followed an earlier April 27 announcement from the Office of the Under Secretary of War for Research and Engineering stating that Google’s Gemini for Government 3.1 Pro and 3.0 Flash models were being added to the GenAI.mil platform, citing improved output quality, reduced hallucinations, and enhanced productivity for mission-critical users. Later that day, Alphabet Inc. (NASDAQ:GOOGL) shares also saw moderately bullish options activity ahead of earnings scheduled for April 29, with elevated call volume and expectations for a notable post-results move.

Alphabet Inc. (NASDAQ:GOOGL) operates Google, the world’s leading search engine, while also owning major businesses in digital advertising, cloud computing, YouTube, Android, and artificial intelligence. Founded in 1998, the company is headquartered in Mountain View, California.

Despite debate around AI deployment, Alphabet’s expanding enterprise and government relevance highlight the strategic value of its models and cloud ecosystem. Backed by $55.75 billion of stock buybacks over the last twelve months, the company remains highly attractive for long-term investors.