Blue Whale Capital LLP LRCX — Lam Research Corp

Ownership history in Blue Whale Capital LLP  ·  19 quarters on record

AI Ownership Summary

Blue Whale Capital LLP reported Lam Research Corp (LRCX) in 19 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 13.11% in 2026 Q1. The latest visible filing shows LRCX at 13.11% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this LRCX ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Blue Whale Capital LLP's position in Lam Research Corp, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

LRCX was reported at 13.11% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
13.11% in 2026 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

LRCX stock page Blue Whale Capital LLP fund profile Blue Whale Capital LLP full holdings
How Blue Whale Capital LLP held LRCX — position size vs. price
% of Fund (quarterly)    LRCX price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 10 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED — — — 1,290,589 -133,041 -9.3% 13.11% $275.7M 2026-05-14 $299.15
2025 Q4 REDUCED 16.3% +25.0% ❌ 1,423,630 -277,866 -16.3% 12.51% $243.7M 2026-02-13 $235.25
2025 Q3 REDUCED 9.5% +31.6% ❌ 1,701,496 -178,032 -9.5% 12.60% $227.8M 2025-11-13 $152.88
2025 Q2 ADDED — — — 1,879,528 +35,493 +1.9% 11.98% $183.0M 2025-08-13 $106.23
2025 Q1 REDUCED 10.5% +34.2% ❌ 1,844,035 -216,910 -10.5% 10.85% $134.1M 2025-05-14 $84.35
2024 Q4 ADDED — — — 2,060,945 +1,962,386 +1991.1% 11.06% $148.9M 2025-02-13 $82.45
2024 Q3 ADDED — — — 98,559 +26,209 +36.2% 6.26% $80.4M 2024-11-13 $72.87
2024 Q2 REDUCED 36.7% -23.1% ✅ 72,350 -41,950 -36.7% 7.35% $77.0M 2024-08-13 $82.71
2024 Q1 ADDED — — — 114,300 +18,750 +19.6% 11.72% $111.1M 2024-05-14 $89.60
2023 Q4 REDUCED 14.9% +25.6% ❌ 95,550 -16,750 -14.9% 9.60% $74.8M 2024-02-13 $87.45
9 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding LRCX

As of 2026 Q1 — sorted by position size

OAKTOP CAPITAL MANAGEMENT II, L.P. 3Y 7Y 35.86% Four Tree Island Advisory LLC 24.62% Trybe Capital Management LP 3Y 17.58% Harbor Island Capital LLC 3Y 7Y 12.68% Trivest Advisors Ltd 3Y 12.55% Heard Capital LLC 3Y 11.83% Miller Capital Partners, Inc. 10.56% CROSSLINK CAPITAL INC 3Y 7Y 10.23% GROESBECK INVESTMENT MANAGEMENT CORP /NJ/ 3Y 7Y 10.02% McBroom & Associates, LLC 3Y 7.55%

FAQ About Blue Whale Capital LLP and LRCX

These are the practical questions this page is built to answer before you even open the full history table.

How long has Blue Whale Capital LLP reported owning LRCX?

Blue Whale Capital LLP reported LRCX across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported LRCX position in Blue Whale Capital LLP's portfolio?

The largest reported portfolio weight for LRCX was 13.11% in 2026 Q1.

What is the latest reported LRCX position on this page?

The most recent filing on this page is 2026 Q1, when Blue Whale Capital LLP reported 1,290,589 shares, equal to 13.11% of portfolio, with an estimated market value of $275.7M.

What does the chart on this LRCX ownership page compare?

The chart compares Blue Whale Capital LLP's quarterly LRCX portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did Blue Whale Capital LLP time their LRCX position?

Based on 13F filing dates vs. subsequent LRCX price moves, Blue Whale Capital LLP correctly timed 8 out of 18 reported position changes (44%). The annualised alpha on LRCX relative to SPY over the holding period was +27.2%.

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