# Alphabet Inc. institutional investment activity > Live situation record from CLSTR: https://clstr.news/situations/alphabet-inc-institutional-investment-activity > Updated: 2026-08-13T08:59:04.000Z. Sources: 4. Developments: 2. Institutional investment activity in Alphabet Inc. has shown varied trends across recent quarters according to SEC filings. In the first quarter, Arrowstreet Capital Limited Partnership significantly expanded its stake by 90.9%, reaching 17,040,373 shares valued at approximately $4.9 billion. During the same period, Alamar Capital Management LLC entered the share register with a purchase of 2,442 shares. By the second quarter, trading activity among institutions became more mixed. While 55 North Private Wealth LLC increased its position by 24.2%, and firms such as Sarasin & Partners LLP and Sequoia Financial Advisors LLC also reported increased holdings, others reduced their exposure. For instance, Mechanics Bank Trust Department decreased its holdings by 2.8%, though it retained a position of 106,791 shares. Assenagon Asset Management S. A. also significantly increased its position by 107.4% during this period. More recently, Alphabet Inc. executed a $25 billion senior notes sale consisting of ten separate tranches with maturities ranging from 2028 to 2066. The company indicated that net proceeds are intended for ‘general corporate purposes, which may include the repayment of outstanding debt.’ Regarding institutional holdings, Berkshire Hathaway sharply increased its position by approximately 48 million shares, making Alphabet its third-largest holding. In contrast, Chesley Taft & Associates LLC and Mechanics Bank Trust Department reported reductions in their stakes during recent quarters. ## Timeline ### 2026-08-13: Alphabet Inc. issues $25 billion in debt with maturities through 2066 Alphabet Inc. issued $25 billion in senior notes with maturities extending to 2066, while Berkshire Hathaway significantly increased its stake in the company. 4 sources. https://clstr.news/cluster/alphabet-inc-sees-mixed-institutional-trading-activity ### 2026-08-03: Alphabet Inc. receives fresh institutional investments Arrowstreet Capital boosted its Alphabet stake to 0.14% ($4.9 bn) and Alamar Capital bought $702 k of shares, per recent SEC filings. 6 sources. https://clstr.news/cluster/alphabet-inc-receives-fresh-institutional-investments --- Cite as: Alphabet Inc. institutional investment activity. CLSTR, https://clstr.news/situations/alphabet-inc-institutional-investment-activity