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Fund Update: 3,496,694 LAM RESEARCH (LRCX) shares added to BAILLIE GIFFORD & CO portfolio

Reported by Quiver Quantitative
Nov 9, 2026· 2 min read
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Key Takeaways
  • • Baillie Gifford & Co added 3,496,694 shares of Lam Research (LRCX) in its Q3 2026 portfolio, according to a new SEC 13F filing covering the period ended September 30, 2026, with an estimated value of $1,148,698,945.
  • • The position increase is reported as +6,028,782.8% quarter over quarter, reflecting a very small prior holding base rather than a single outsized purchase.
  • • Across the broader institutional base, 1,500 investors added LRCX shares in their most recent quarter while 1,452 reduced positions, per Quiver Quantitative.
  • • Largest Q2 2026 moves included JPMorgan Chase (45.3 million shares added, est. $19.6 billion) and Invesco (28.1 million shares added, est. $12.2 billion).
  • • Insiders sold LRCX 55 times over the past six months with no open-market purchases, led by director Eric Brandt and CEO Timothy Archer.
Summary
Baillie Gifford & Co has added 3,496,694 shares of Lam Research (NASDAQ: LRCX) to its portfolio, according to a new SEC 13F filing reported by Quiver Quantitative. The filing reflects holdings for the September 30, 2026 reporting period, and the position carries an estimated value of $1,148,698,945. Quiver describes the change as a 6,028,782.8% increase from the prior quarter, a figure that reflects a very small previous holding rather than a comparable scale of accumulation.

Quiver's institutional tracking shows broad activity in the stock. Some 1,500 institutional investors added LRCX shares in their most recent quarter, while 1,452 decreased their positions. Among the largest recent moves cited, JPMorgan Chase & Co added 45,317,479 shares in Q2 2026 (estimated at $19.6 billion), Invesco Ltd. added 28,064,410 shares (+115.7%, estimated at $12.2 billion), and T. Rowe Price Associates added 11,356,938 shares (+85.8%, estimated at $4.9 billion). Van Eck Associates added 8,922,854 shares, Sixth Street Partners Management Company added 7,698,872 shares, and Artisan Partners removed 4,243,428 shares (-84.4%) during the same quarter.

Insider activity over the past six months was one-directional. Per Quiver, LRCX insiders executed 55 open-market sales and no purchases. Eric Brandt accounted for 43 of those sales, disposing of 109,000 shares for an estimated $39.1 million. President and CEO Timothy Archer sold 121,400 shares for an estimated $37.4 million across four transactions, and Senior Vice President Seshasayee Varadarajan sold 59,750 shares for an estimated $17.4 million. Congressional trading in the stock was limited to three transactions over the same period.

Analyst coverage remains constructive on price targets. Quiver tracked 12 analysts issuing targets in the last six months, with a median target of $402.00. Recent targets ranged from $400 (Mizuho, TD Cowen) to $500 (Cantor Fitzgerald). Quiver notes that the data may contain inaccuracies due to filing or parsing errors.

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Quiver Quantitative Fund Update: 3,496,694 LAM RESEARCH (LRCX) shares added to BAILLIE GIFFORD & CO portfolio