Assenagon Asset Management S.A. Reduces Position in Lam Research Corporation

Semiconductor equipment maker Lam Research sees institutional investor trim stake

Mar. 27, 2026 at 7:22am

Assenagon Asset Management S.A., a global investment management firm, has reduced its position in Lam Research Corporation (NASDAQ:LRCX) by 87.7% during the fourth quarter, according to a recent SEC filing. Lam Research is a leading supplier of wafer fabrication equipment and services to the semiconductor industry, headquartered in Fremont, California.

Why it matters

Institutional investor activity can provide insights into market sentiment and future performance of a company's stock. Assenagon's decision to significantly reduce its stake in Lam Research may signal concerns about the semiconductor equipment maker's near-term outlook, though the filing does not provide specific reasons for the portfolio adjustment.

The details

According to the SEC filing, Assenagon Asset Management S.A. owned 101,045 shares of Lam Research as of the end of the fourth quarter, down from 719,958 shares held previously. This represents an 87.7% reduction in the firm's position in the semiconductor equipment manufacturer.

  • Assenagon Asset Management S.A. filed the 13F report disclosing the position change on March 27, 2026.
  • The portfolio adjustment occurred during the fourth quarter of 2025.

The players

Assenagon Asset Management S.A.

A global investment management firm based in Germany that has reduced its stake in semiconductor equipment maker Lam Research Corporation.

Lam Research Corporation

A leading supplier of wafer fabrication equipment and services to the semiconductor industry, headquartered in Fremont, California.

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The takeaway

Assenagon Asset Management's decision to significantly trim its position in Lam Research may signal broader market concerns about the semiconductor equipment maker's near-term outlook, though the specific reasons behind the portfolio adjustment are unclear from the regulatory filing. Investors will likely monitor Lam Research's financial performance and any further changes in institutional ownership in the coming quarters.