Stock profile

LAM RESEARCH CORP (LRCX)

LRCX · Latest close $301.11 as of Oct 13, 2026 · 13F data as of Jun 30, 2026 (2026 Q2)
Latest close
$301.11
As of Oct 13, 2026
Tracked funds holding
16 of 149
2026 Q2 13F filings
Opened / added
4 / 3
vs previous quarter
Trimmed / exited
7
vs previous quarter

Super-investor holdings · 2026 Q2

FundPortfolio weightSharesChange vs prev. quarter
Coatue Management8.41%9,441,603TRIMMED (-6.0%)
Tiger Global Management5.72%3,163,495TRIMMED (-18.9%)
Montrusco Bolton Investments4.51%671,482TRIMMED (-2.0%)
DJE Kapital4.06%483,185ADDED (+9.8%)
Polen Capital Management3.21%859,036TRIMMED (-18.5%)
Whale Rock Capital Management2.58%742,638TRIMMED (-22.5%)
Appaloosa Management2.15%382,500HELD
Sands Capital Management1.82%1,133,965ADDED (+50.1%)
Atalanta Sosnoff Capital1.71%224,322HELD
Guinness Asset Management1.12%155,776TRIMMED (-25.7%)
Winslow Capital Management0.66%444,164ADDED (+2944.5%)
Thornburg Investment Management0.08%20,299NEW
Maverick Capital0.02%4,083NEW
Davis Advisors0.01%2,780HELD
Mairs & Power Funds<0.01%765NEW
Causeway Capital Management<0.01%816NEW

Source: SEC Form 13F filings for the quarter ended Jun 30, 2026. Change labels compare each fund’s 2026 Q2 filing with its previous filing. 13F filings cover long positions only and arrive up to 45 days after quarter-end. Fund counts here aggregate every share class mapped to this ticker; research headlines cite filer counts as they stood at publication, so a count here can differ from a headline by a holder (see Methodology, "How holder counts are counted").

Exited this quarter: Third Point.

All institutions · Form 13F

Institutions holding3,132 of 8,857 filers
Long-only filers among them3,122
Change vs 2026 Q1+516 net · 2,184 entered · 1,668 exited
Shares reported, all filers1,065,089,191
Reported value, all filers$459.8B

Source: SEC Form 13F data sets — every filer's latest report for the quarter ended Jun 30, 2026, not just the tracked funds above; changes compare with the quarter ended Mar 31, 2026. Share counts and values are summed as reported in the filings (a small number of filers report values in thousands of dollars, so value totals are as-filed sums).

Company fundamentals

ExchangeNasdaq
IndustrySpecial Industry Machinery, NEC (SIC 3559)
Revenue · FY2026$23.2B
Net income · FY2026$7.3B
Total assets · FY2026$23.5B
Shares outstanding1,251,321,000
Market cap (at latest close)$376.8B

Source: SEC EDGAR company filings (submissions and company facts), collected Oct 7, 2026. Shares outstanding as reported Aug 4, 2026.

Short interest

Shares short · Sep 15, 202626,081,081
Share of shares outstanding2.08%
Days to cover3.08

Shares short at recent settlements — Jun 30, 2026: 28.3M · Jul 15, 2026: 29.5M · Jul 31, 2026: 27.0M · Aug 14, 2026: 28.4M · Aug 31, 2026: 27.8M · Sep 15, 2026: 26.1M.

Source: FINRA Equity Short Interest (biweekly settlement data). Shares outstanding from SEC filings as of Aug 4, 2026.

Insider trading · Form 4

0 insiders bought on the open market in the last 90 days (0 purchases, $0), against 7 sales by 4 insiders ($40.5M).

Source: SEC Form 4 filings, as of Oct 14, 2026. Open-market transactions only.

Politician trading · U.S. Congress

0 members of Congress reported buying (0 purchases vs 3 sales).

Source: U.S. House Clerk and U.S. Senate eFD STOCK Act periodic transaction reports, as of Oct 3, 2026. Reported amounts are ranges, and reports can arrive up to 45 days after the trade.

Screens & lenses

Financial Screens

· Buffett — Companies with high ROE sustained for more than a decade

· Graham — Sound finances and a long run of profits

· Piotroski — Financial health improved over the past year

· O'Neil CAN SLIM — Explosive earnings growth leaders

· Gross Profitability (Novy-Marx) — High gross profit relative to total assets

· Earnings Quality (Cash Conversion) — Profits that actually come back as cash

· Earnings Stability — Small earnings swings and almost no loss years

Chart Signals

· Monthly Uptrend — Price above its 12-month moving average

Red Flags

· Earnings Manipulation Suspect (Beneish) — Beneish M-Score above -1.78

· Auditor Change (8-K 4.01) — Last 2 years: an auditor change filing (8-K Item 4.01)

Key figures

· Buffett — Latest ROE: 58.3% · Years ROE ≥15% (of 10): 10 · 10-yr avg ROE: 50.2% · Latest net income: $7.3B

· Graham — Current ratio: 2.63 · Straight profitable years: 17 · Debt ratio: 0.89 · Latest net income: $7.3B

· Piotroski — F-score: 8 · Return on assets: 30.9% · Operating cash flow: $5.9B

· O'Neil CAN SLIM — 3-yr EPS growth: 20.2% · ROE: 58.3% · Latest revenue growth: 26.0%

· Gross Profitability (Novy-Marx) — Gross profit / assets: 49.8% · Gross margin: 50.5%

· Earnings Quality (Cash Conversion) — Cash conversion (3-yr avg): 1.06 · Operating cash flow: $5.9B · Net income: $7.3B

· Earnings Stability — Earnings variation (CV): 0.43 · Loss years (of 10): 0 · Latest net income: $7.3B

· Earnings Manipulation Suspect (Beneish) — M-Score: -1.66 · Receivables index: 1.25 · Margin deterioration: 0.96 · Sales growth index: 1.26 · Accruals ratio: 6.0%

· Auditor Change (8-K 4.01) — Latest event: Sep 11, 2025 · Events in 2 yrs: 1

Financial screens are computed from SEC company financial statements; red-flag models are screens, not verdicts — see Methodology.

Signal record

· Politician BEST — appeared in 6 of the last 20 quarterly lists; latest 2026 Q1, ranked #40 of 50.

13F signal (2021 Q3 – 2026 Q1)EventsWin rateAvg returnSPYExcess
Heavy accumulation — 3+ tracked funds increased together1080.0%+16.7%+5.4%+11.3%
Share count tripled (3x)2100.0%+12.4%+5.2%+7.3%
Heavy exit — 3+ tracked funds sold out together10.0%-2.2%-2.5%+0.3%

Measured from SEC 13F filings: entry at the close on the first trading day after each quarter’s filing deadline, exit one quarter later on the same rule, dividend-adjusted closes. Past records do not guarantee future results — see Track Record and Methodology.

Related stocks

Also held by the tracked funds that hold LRCX: MICROSOFT CORP (MSFT) · Meta Platforms, Inc. (META) · NVIDIA CORP (NVDA) · AMAZON COM INC (AMZN) · Broadcom Inc. (AVGO) · TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) · Alphabet Inc. (GOOGL) · ADVANCED MICRO DEVICES INC (AMD) · VISA INC. (V) · Apple Inc. (AAPL).

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