AI summary pending
View Full Filing (SEC EDGAR)Lam Research CORP
$301.49-0.1%
+$228.2B
Net Activity
+85.73% total shares
Institutions Holding
3135
Popularity Rank
#50
Avg Weight
0.71%
Total Value
$492.8B
Market Cap
$380.2B
3135 institutions currently hold LRCX, with 1684 net buyers and 1270 net sellers this quarter.
Institutional Moves (Q2 2026)
Neutral
Based on recent trading activity
Net Selling Institutions
1270
Net Buying Institutions
1684
Top 5 by Value
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Across its top 20 institutional holders, LRCX's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 5/100, avg. turnover score 37/100).
LRCX ranks #50 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
LRCX is a top-conviction position for Coatue Management LLC — at 8.4% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in LRCX belongs to BlackRock, Inc., but the position matters far more to Coatue Management LLC, who has 8.4% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.
BlackRock has added to its LRCX position for two straight quarters, increasing it by $34.6B to reach $57.6B today.
Artisan Partners Limited Partnership has trimmed its LRCX position for two straight quarters, cutting it by $1.0B while still holding $340.7M.
LRCX is down 0.1% today, but institutions show net buying of $228.2B this quarter — a divergence between today's price move and the underlying institutional flow.
LRCX posted net income of $7.3B over the trailing twelve months, and currently trades at a P/E of 52.3.
+$68.0B
Total Buy Value
$27.3B
Total Sell Value
1684
Net Buyers
1270
Net Sellers
LRCX
Q2 2026
Top 5 Institutional Movers
Institutional accumulation meets steady insider selling — signals offset
Signal Basis
13F filings show net institutional inflows of roughly $38.8B, with 1,674 net buyers versus 1,260 net sellers, while insider activity over the past 90 days consists solely of three sales totaling about $26.8M — including CEO Timothy Archer's $9M sale on August 6 — and zero insider purchases.
Confirmation
Another filing period of sustained institutional net buying paired with a continued absence of insider purchases would appear to confirm the current standoff.
Invalidation Risk
A cluster of additional insider sales, or an abrupt reversal in institutional flows, would invalidate the neutral reading and push the signal decisively in one direction.
This analysis is machine-generated from institutional holders' Form 13F data on SEC EDGAR and limited to historical trends. Not financial advice — see the source filings below.
See the institutional 13F filings behind this signalLRCX does not currently show a 13F-and-insider convergence signal — its insider confidence score is 0/100, below the threshold this product uses to flag combined buying pressure.
13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
0
unique buyers
—
buy value
12-Month Buy/Sell Activity
| Action | Insider | Date | Value |
|---|---|---|---|
| Sell | Ava Harter | 2026-08-31 | $1.51M |
| Sell | Timothy Archer | 2026-08-06 | $9.00M |
| Sell | Abhijit Y Talwalkar | 2026-07-13 | $6.12M |
| Sell | Timothy Archer | 2026-07-02 | $11.70M |
| Sell | Bettinger Douglas R | 2026-03-04 | $11.21M |
| Sell | Ava Harter | 2026-03-04 | $334K |
| Sell | Bettinger Douglas R | 2026-03-02 | $9.28M |
| Sell | Ava Harter | 2026-03-02 | $930K |
| Action | Member | Trade Date | Amount |
|---|---|---|---|
| Buy | Alan Armstrong Senate | 2026-03-30 | $1K–$15K |
| Buy | Alan Armstrong Senate | 2026-03-27 | $1K–$15K |
| Sell (Partial) | John Boozman Senate | 2026-01-08 | $1K–$15K |
| Buy | Markwayne Mullin Senate | 2025-12-29 | $50K–$100K |
| Sell (Partial) | Sheldon Whitehouse Senate | 2025-08-28 | $15K–$50K |
| Buy | Markwayne Mullin Senate | 2025-05-13 | $15K–$50K |
| Sell (Partial) | John Boozman Senate | 2025-04-16 | $1K–$15K |
| Sell (Partial) | Markwayne Mullin Senate | 2025-04-08 | $50K–$100K |
5
Filings (90d)
$65.53M
Total Est. Value
187K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| ARCHER TIMOTHY | 2026-08-06 | $9.00M |
| TALWALKAR ABHIJIT Y | 2026-07-13 | $6.12M |
| ARCHER TIMOTHY | 2026-07-02 | $11.70M |
| BRANDT ERIC | 2026-06-12 | $19.59M |
| BRANDT ERIC | 2026-06-11 | $19.12M |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
No Schedule 13D/13G filings for this ticker
2
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)AI summary pending
View Full Filing (SEC EDGAR)512807306, 512807906, 512807908, 512807956, 512807958, US5128073
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