Berkshire Hathaway's Q3 2025 Portfolio Update: New Alphabet Stake & Apple Trim Analysis

On November 14, 2025 (17:47 EST), Berkshire Hathaway disclosed key Q3 2025 portfolio changes: a new

in Alphabet Inc. (GOOGL) valued at ~$4.3B at Q3 end ($4.9B as of Nov14 close) [2][3], and a in Apple Inc. (AAPL) stake from 280M to 238.2M shares [3]. The move is attributed to portfolio managers Todd Combs or Ted Weschler (Buffett’s deputies), as Buffett typically avoids large tech investments outside Apple [1].

Short-term market impact: Alphabet shares rose by

on Nov14 with 31.1M shares traded (16% above the 10-day average) [0], while Apple saw marginal gains (0.50%) [0]. The Technology sector gained [0], reflecting positive sentiment toward AI-driven tech assets.

Alphabet’s growth drivers include Google Cloud’s

to $15.2B and AI product revenue growth exceeding [7][8], which likely influenced Berkshire’s investment decision.

1. Strategic Shift
   : Berkshire’s new Alphabet stake marks its largest tech investment since Apple, signaling a shift toward AI-focused growth assets.
2. Market Sentiment
   : The positive reaction to the stake underscores investor trust in Berkshire’s due diligence for high-growth sectors like cloud computing.
3. Diversification
   : Trimming Apple (its largest holding) reflects efforts to reduce concentration risk and balance portfolio stability with growth.

• Opportunities
  : Alphabet’s AI and cloud growth potential offers long-term upside, supported by expanding enterprise clients and innovative products.
• Risks
  :
  a.
  Regulatory
  : Alphabet faces ongoing scrutiny, including a $3.5B European Commission fine [8], impacting profitability.
  b.
  Apple Trim
  : Continued reductions could signal growth concerns, pressuring Apple’s stock over time.
  c.
  Competition
  : Google Cloud trails AWS/Azure in market share, challenging sustained growth [5].

• Berkshire’s Alphabet stake:
  17.9M shares
  ($4.3B Q3 end, $4.9B Nov14 close) [2][3].
• Apple stake reduction:
  15%
  (280M →238.2M shares) [3].
• Alphabet Q3 metrics: Cloud revenue ($15.2B, +34% YoY) [8], AI product growth (>200% YoY) [7].
• Market performance: Alphabet (+1.84%), Apple (+0.50%), Tech sector (+2.03%) [0].