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MCK

McKesson Corporation

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MCK in the last 90 days

McKesson Corporation (MCK) had 3 congress transactions by 3 members and no insider purchases in filings from the last 90 days.

FINRA’s latest report (settlement 15 SEPT 2026) shows 2,903,573 shares held short, 3.4 days to cover, up 2.4% from the report before.

  • Congress: 2 purchases and 1 sale 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: 15 JUL 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

+53Leaning in

Leaning outBalancedLeaning 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 25.1% — 3,878,060 to 2,903,573 shares between 15 JUL 2026 and 15 SEPT 2026. See the filings →
+63
Congress
3 members of Congress disclosed 2 purchases and 1 sale. See the filings →
+33

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

2,903,573shares held short

Days to cover

3.39

Avg daily volume

857,298

Since last report

+2.42%

As of 15 September 2026, 2,903,573 McKesson Corporation shares were held short — the total across every reporting firm, not one fund's position. That is 68,472 shares more than the previous report, a 2.42% increase. At the average daily volume of 857,298 shares, that position represents 3.39 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 MCK — 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 risen from 2,495,929 shares on 31 March 2026 to 2,903,573 today, a change of 16.3%. The highest reading in that window was 5,237,307 shares on 29 May 2026.

SettlementShares shortDays to cover
15 SEPT 20262,903,5733.39
31 AUG 20262,835,1012.98
14 AUG 20262,419,4842.17
31 JUL 20263,613,1113.84
15 JUL 20263,878,0604.12
30 JUN 20264,117,7772.84
15 JUN 20264,450,1845.41
29 MAY 20265,237,3073.31
15 MAY 20262,879,1512.04
30 APR 20262,711,4573.12
15 APR 20262,576,9113.84
31 MAR 20262,495,9292.92
What is MCK's short interest?
2,903,573 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, 3.39. 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 transactions24

Latest change15 JUL 2026

SHORT POSITIONS · 0INSIDER BUYS · 0CONGRESS · 24

Congress transactions on file

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

WhoAmount as filedTradedFiledLag
Hon. Jonathan JacksonSOLD$1,001 – $15,00015 JUN 202615 JUL 202630 days
Hon. Rick LarsenBOUGHT$1,001 – $15,00008 JUL 202612 JUL 20264 days
Hon. Ritchie John TorresBOUGHT$1,001 – $15,00007 JAN 202508 JUL 2026547 days — the law says 45
Hon. Elizabeth FletcherSOLD$1,001 – $15,000 · partial08 APR 202601 MAY 202623 days
Hon. Jared MoskowitzBOUGHT$1,001 – $15,00002 DEC 202516 JAN 202645 days
Hon. Jared MoskowitzBOUGHT$1,001 – $15,00002 DEC 202516 JAN 202645 days
Hon. Julia LetlowBOUGHT$1,001 – $15,00018 DEC 202413 JAN 2026391 days — the law says 45
Hon. Gilbert CisnerosSOLD$1,001 – $15,00019 DEC 202512 JAN 202624 days
Hon. Gilbert CisnerosBOUGHT$1,001 – $15,00018 NOV 202515 DEC 202527 days
Hon. Jared MoskowitzBOUGHT$1,001 – $15,00010 OCT 202522 NOV 202543 days
Hon. Jonathan JacksonSOLD$1,001 – $15,00008 OCT 202510 NOV 202533 days
Hon. Valerie HoyleSOLD$1,001 – $15,00023 SEPT 202510 OCT 202517 days
Hon. Valerie HoyleBOUGHT$1,001 – $15,00010 SEPT 202510 OCT 202530 days
Hon. Gilbert CisnerosSOLD$1,001 – $15,00005 AUG 202512 SEPT 202538 days
Hon. Jonathan JacksonBOUGHT$1,001 – $15,00003 MAR 202525 AUG 2025175 days — the law says 45
Hon. Jonathan JacksonBOUGHT$1,001 – $15,00024 MAR 202525 AUG 2025154 days — the law says 45
Hon. Jonathan JacksonBOUGHT$1,001 – $15,00023 APR 202525 AUG 2025124 days — the law says 45
Hon. Jefferson ShreveSOLD$15,001 – $50,00012 MAY 202522 JUN 202541 days
Hon. Josh GottheimerSOLD$1,001 – $15,000 · partial09 APR 202514 MAY 202535 days
Hon. Gilbert CisnerosBOUGHT$1,001 – $15,00029 APR 202506 MAY 20257 days
Hon. Jonathan JacksonBOUGHT$1,001 – $15,00004 MAR 202508 APR 202535 days
Hon. Gilbert CisnerosSOLD$1,001 – $15,00024 JAN 202511 FEB 202518 days
Hon. Jared MoskowitzBOUGHT$1,001 – $15,00015 JAN 202510 FEB 202526 days
Hon. Jared MoskowitzBOUGHT$1,001 – $15,00015 JAN 202510 FEB 202526 days
What this page will never showNo price targetsNo score out of 100No buy or sell callsNo predictionsDocuments, dates, and how late they were.