Ticker
KLAC
KLA Corporation Common Stock
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KLAC in the last 90 days
KLA Corporation Common Stock (KLAC) had 1 congress transaction by 1 member and no insider purchases in filings from the last 90 days.
FINRA’s latest report (settlement 15 SEPT 2026) shows 23,554,039 shares held short, 2.5 days to cover, down 19.9% from the report before.
- Congress: 1 purchase and 0 sales reported, amounts in the bands the law requires.
- 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: 07 AUG 2026 · FINRA settlement 15 SEPT 2026 · public filings, reported as filed
What the filings show
What the filings show · last 90 days
2 of 4 sources
+59Leaning in
The disclosed money is leaning into this name, on what has actually been filed. This reads on two of the four sources we track.
- Short interest
- Short interest fell 15.7% — 27,939,763 to 23,554,039 shares between 15 JUL 2026 and 15 SEPT 2026. See the filings →
- +39
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
23,554,039shares held short
Days to cover
2.50
Avg daily volume
9,415,932
Since last report
-19.89%
As of 15 September 2026, 23,554,039 KLA Corporation Common Stock shares were held short — the total across every reporting firm, not one fund's position. That is 5,847,099 shares fewer than the previous report, a 19.89% decrease. At the average daily volume of 9,415,932 shares, that position represents 2.50 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 KLAC — 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 6 reports we hold, the position has fallen from 34,375,617 shares on 30 June 2026 to 23,554,039 today, a change of 31.5%. The highest reading in that window was 34,375,617 shares on 30 June 2026.
| Settlement | Shares short | Days to cover |
|---|---|---|
| 15 SEPT 2026 | 23,554,039 | 2.50 |
| 31 AUG 2026 | 29,401,138 | 3.36 |
| 14 AUG 2026 | 25,337,831 | 2.52 |
| 31 JUL 2026 | 27,024,003 | 2.09 |
| 15 JUL 2026 | 27,939,763 | 2.03 |
| 30 JUN 2026 | 34,375,617 | 2.14 |
| 15 JUN 2026 | 40,762,347 · split | 3.13 |
| 29 MAY 2026 | 3,504,100 | 3.69 |
| 15 MAY 2026 | 3,380,525 | 3.24 |
| 30 APR 2026 | 3,184,475 | 3.20 |
| 15 APR 2026 | 3,341,196 | 4.22 |
| 31 MAR 2026 | 3,176,233 | 3.06 |
- What is KLAC's short interest?
- 23,554,039 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, 2.50. 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 transactions8
Latest change07 AUG 2026
Congress transactions on file
8 disclosed · newest first · every row links to its filing
| Who | Amount as filed | Traded | Filed | Lag | |
|---|---|---|---|---|---|
| Hon. Michael Rulli | BOUGHT | $1,001 – $15,000 | 01 JUL 2026 | 07 AUG 2026 | 37 days |
| Hon. Elizabeth Fletcher | SOLD | $1,001 – $15,000 · partial | 08 APR 2026 | 01 MAY 2026 | 23 days |
| Hon. Valerie Hoyle | SOLD | $1,001 – $15,000 | 23 SEPT 2025 | 10 OCT 2025 | 17 days |
| Hon. Valerie Hoyle | BOUGHT | $1,001 – $15,000 | 28 JUL 2025 | 12 SEPT 2025 | 46 days — the law says 45 |
| Hon. Valerie Hoyle | SOLD | $1,001 – $15,000 | 29 APR 2025 | 12 SEPT 2025 | 136 days — the law says 45 |
| Hon. Valerie Hoyle | BOUGHT | $1,001 – $15,000 | 29 OCT 2024 | 12 SEPT 2025 | 318 days — the law says 45 |
| Hon. William R. Keating | BOUGHT | $1,001 – $15,000 | 24 JAN 2025 | 25 FEB 2025 | 32 days |
| Hon. Gilbert Cisneros | SOLD | $1,001 – $15,000 · partial | 13 JAN 2025 | 11 FEB 2025 | 29 days |