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LRCX

Lam Research Corporation Commo

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LRCX in the last 90 days

Lam Research Corporation Commo (LRCX) had no congress transactions and no insider purchases in filings from the last 90 days.

FINRA’s latest report (settlement 15 SEPT 2026) shows 26,081,081 shares held short, 3.1 days to cover, down 6.0% from the report before.

  • Delay: each filing below shows how many days passed between the trade and its publication. None of this is real-time.

Latest filing on file: 12 JUN 2026 · FINRA settlement 15 SEPT 2026 · public filings, reported as filed

What the price is doing

$340$221 → $340 · +54% over six months

LRCX is up 54%. Short sellers have barely moved.

Bets against it — they pay off if the price falls — are up 0% over the same stretch.

$221 STARTAPRMAYJUNJULAUGSEPTOCT27 APR 2026 — Hon. David J. Taylor — $1,001 – $15,00027 APR 2026 — Hon. David J. Taylor — $1,001 – $15,00005 JUN 2026 — Hon. David J. Taylor — $1,001 – $15,000NOW $340

Politician activityBoughtSold

Short sellers

11 reports · twice a month

APR 0%peak +26%15 SEPT +0%APRMAYJUNJULAUGSEPTOCT

Money betting LRCX falls. Reported twice a month, and it shows up seven working days late.

Politicians

0 buys · 3 sales

Traded over six months

View activity →

Short sellers

Bets up 0%

Over six months · newest 15 SEPT 2026

See the numbers →

Insiders

Nothing reported

Traded over six months

Quiet Money

Our take on how well LRCX holds up when sellers show up.

How it holds up · last 60 trading days

Through 21 SEPT 2026

Vulnerable

When LRCX gets hit, it tends to drop more easily than usual.

Lately, LRCX has been easier to push down than usual.

That's been true for the last 51 trading days.

The last 6 months

ResilientMixedVulnerable
MAYJUNJULAUGSEPT
31 MAR 2026Now · 21 SEPT 2026

What the filings show

What the filings show · last 90 days

1 of 4 sources

+29Tilted in

Leaning outBalancedLeaning in

The disclosed money is leaning into this name, on what has actually been filed. This reads on one source only, so treat it lightly.

Short interest
Short interest fell 11.7% — 29,520,485 to 26,081,081 shares between 15 JUL 2026 and 15 SEPT 2026. See the filings →
+29

This summarises filings that have already been published — it is not a forecast, a rating of the company, or advice. Every figure above is listed in full further down this page, with the document it came from.

FINRA short interest

Settlement 15 SEPT 2026 · shares held short

26,081,081shares held short

Days to cover

3.08

Avg daily volume

8,455,032

Since last report

-6.02%

As of 15 September 2026, 26,081,081 Lam Research Corporation Commo shares were held short — the total across every reporting firm, not one fund's position. That is 1,670,077 shares fewer than the previous report, a 6.02% decrease. At the average daily volume of 8,455,032 shares, that position represents 3.08 days of trading — what the filing calls days to cover.

This is the most recent figure that exists, and it is 17 days old. FINRA collects short interest twice a month, on a settlement date, and publishes it about eight business days later. So nobody has a live short-interest number for LRCX — not us, and not anyone quoting one. We print the settlement date on the figure so you always know which day you are looking at.

Across the 12 reports we hold, the position has fallen from 27,966,572 shares on 31 March 2026 to 26,081,081 today, a change of 6.7%. The highest reading in that window was 32,918,359 shares on 15 May 2026.

SettlementShares shortDays to cover
15 SEPT 202626,081,0813.08
31 AUG 202627,751,1583.79
14 AUG 202628,419,1383.27
31 JUL 202626,963,9962.22
15 JUL 202629,520,4852.41
30 JUN 202628,314,6641.84
15 JUN 202629,877,3172.67
29 MAY 202632,072,5433.64
15 MAY 202632,918,3593.55
30 APR 202628,556,4543.05
15 APR 202626,059,4163.04
31 MAR 202627,966,5722.44
What is LRCX's short interest?
26,081,081 shares, as of the 15 September 2026 settlement date. That is the figure FINRA published, unadjusted.
What percentage of the float is short?
We do not publish that, because FINRA does not publish float. The regulator reports the number of shares held short; turning it into a percentage needs a share count from somewhere else, and different sources disagree about what counts as float. We would rather give you the number that was actually filed than a percentage built on an assumption.
How current is this?
It is 17 days old, and that is as fresh as short interest gets. FINRA measures it twice a month and publishes it seven business days after the settlement date. Any site showing you a "live" short interest figure is showing you something else.
What does days to cover mean?
It is the short position divided by average daily trading volume — here, 3.08. It describes how many days of ordinary trading the position is equivalent to. It is arithmetic from the filing, not a prediction about what will happen.
Where does this come from?
FINRA's consolidated short interest file, which is public. We read it directly and store it unchanged, except that we blank the days-to-cover placeholder FINRA writes when a stock has almost no volume.

Disclosed insider buying on file

—no purchase on file passed the price check

Open-market purchases only — the amount is a fact, not a verdict.

On file here

Short positions0

Insider purchases0

Congress transactions31

Latest change12 JUN 2026

SHORT POSITIONS · 0INSIDER BUYS · 0CONGRESS · 31

Congress transactions on file

31 disclosed · newest first · every row links to its filing

WhoAmount as filedTradedFiledLag
Hon. David J. TaylorSOLD$1,001 – $15,00005 JUN 202612 JUN 20267 days
Hon. David J. TaylorSOLD$1,001 – $15,00027 APR 202607 MAY 202610 days
Hon. David J. TaylorSOLD$1,001 – $15,00027 APR 202607 MAY 202610 days
Hon. David J. TaylorBOUGHT$1,001 – $15,00012 MAR 202620 MAR 20268 days
Hon. David J. TaylorSOLD$1,001 – $15,00026 FEB 202606 MAR 20268 days
Hon. David J. TaylorSOLD$1,001 – $15,00026 FEB 202606 MAR 20268 days
Cleo FieldsBOUGHT$15,001 – $50,00003 FEB 202624 FEB 202621 days
Hon. David J. TaylorSOLD$1,001 – $15,00016 JAN 202602 FEB 202617 days
Hon. David J. TaylorSOLD$15,001 – $50,00008 JAN 202621 JAN 202613 days
Hon. David J. TaylorSOLD$15,001 – $50,00008 JAN 202621 JAN 202613 days
Hon. Jonathan JacksonSOLD$1,001 – $15,00003 SEPT 202515 OCT 202542 days
Hon. Valerie HoyleSOLD$1,001 – $15,00023 SEPT 202510 OCT 202517 days
Hon. David J. TaylorSOLD$1,001 – $15,00022 SEPT 202507 OCT 202515 days
Hon. David J. TaylorSOLD$1,001 – $15,00022 SEPT 202507 OCT 202515 days
Hon. Jonathan JacksonBOUGHT$1,001 – $15,00013 AUG 202523 SEPT 202541 days
Hon. Valerie HoyleSOLD$1,001 – $15,000 · partial04 FEB 202512 SEPT 2025220 days — the law says 45
Hon. Valerie HoyleBOUGHT$1,001 – $15,00029 OCT 202412 SEPT 2025318 days — the law says 45
Hon. Byron DonaldsBOUGHT$1,001 – $15,00007 AUG 202505 SEPT 202529 days
Hon. Byron DonaldsBOUGHT$1,001 – $15,00007 AUG 202505 SEPT 202529 days
Hon. David J. TaylorSOLD$1,001 – $15,00018 JUL 202502 SEPT 202546 days — the law says 45
Hon. David J. TaylorSOLD$1,001 – $15,00018 JUL 202502 SEPT 202546 days — the law says 45
Hon. Jefferson ShreveSOLD$15,001 – $50,00012 MAY 202522 JUN 202541 days
Hon. Julie JohnsonSOLD$1,001 – $15,00007 APR 202514 MAY 202537 days
Hon. Jefferson ShreveSOLD$15,001 – $50,000 · partial07 APR 202508 MAY 202531 days
Hon. Rob BresnahanSOLD$1,001 – $15,00008 APR 202508 MAY 202530 days
Hon. Jefferson ShreveBOUGHT$50,001 – $100,00031 MAR 202511 APR 202511 days
Hon. Jefferson ShreveSOLD$50,001 – $100,000 · partial05 MAR 202511 APR 202537 days
Hon. Marjorie Taylor GreeneBOUGHT$1,001 – $15,00004 APR 202507 APR 20253 days
Hon. William R. KeatingSOLD$1,001 – $15,00024 JAN 202525 FEB 202532 days
Hon. Rob BresnahanBOUGHT$1,001 – $15,00016 JAN 202513 FEB 202528 days
Hon. Gilbert CisnerosSOLD$15,001 – $50,000 · partial28 JAN 202511 FEB 202514 days
What this page will never showNo price targetsNo score out of 100No buy or sell callsNo predictionsDocuments, dates, and how late they were.