MCK Institutional Ownership
Who owns Mckesson Corp and what the big funds did with it last quarter, from every SEC 13F filing. 2,019 funds reported holding MCK at Jun 30, 2026, together owning 90.5% of the company.
- ▼843 buying vs 979 selling
- ▼Held by funds -1.3 pts
- ▼Funds holding -33
- ▲Superinvestors: 5 added, 1 cut
- ▲Put/call 1.38 to 0.46
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 2,019 | 2,052 | −1.6% |
| In funds' top 10 | 29 | 45 | −35.6% |
| 13F shares | 105M | 107M | −1.4% |
| Held by funds | 90.5% | 91.8% | −1.3 pts |
| New positions | 141 | 157 | −10.2% |
| Increased | 702 | 713 | −1.5% |
| Reduced | 798 | 787 | +1.4% |
| Sold out | 181 | 120 | +50.8% |
| Calls (shares) | 216K | 146K | +47.7% |
| Puts (shares) | 100K | 201K | −50.0% |
| Put/call ratio | 0.46 | 1.38 | −66.4% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in MCK
All superinvestors →
Who owns MCK
share of fund held shares- Index and passive funds34.3%
- Active managers and hedge funds38.2%
- Banks and brokers22.0%
- Pensions, insurers and other5.5%
The top 10 holders own 42.3% of all MCK shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
749 funds changed their position- Assenagon Asset Management S.A.Added+133K sh
- Swedbank ABTrimmed−53K sh
- Robeco Institutional Asset Management B.V.Added+37K sh
- Obermeyer Wealth PartnersNew+30K sh
- Smith Group Asset Management, LLCTrimmed−25K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 9.26% | 10.8M | $8.2B | −623K |
| 2 | Vanguard Capital Management LLC | 6.74% | 7.9M | $5.9B | −108K |
| 3 | State Street Corp | 4.91% | 5.7M | $4.3B | −4,638 |
| 4 | Morgan Stanley | 4.55% | 5.3M | $4B | +3M |
| 5 | Franklin Resources Inc | 2.49% | 2.9M | $2.2B | −158K |
| 6 | Vanguard Portfolio Management LLC | 2.46% | 2.9M | $2.2B | −9,851 |
| 7 | Geode Capital Management, LLC | 2.42% | 2.8M | $2.1B | −82K |
| 8 | Massachusetts Financial Services Co /ma/ | 2.10% | 2.4M | $1.9B | −454K |
| 9 | Fmr LLC | 1.83% | 2.1M | $1.6B | −1.5M |
| 10 | Jpmorgan Chase & Co | 1.50% | 1.7M | $1.3B | −1.5M |
- Morgan Stanley+3M sh+$2.3B
- Norges Bank+1.5M sh+$1.2B
- Jane Street Group, LLC+666K sh+$503M
- DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt+492K sh+$372M
- D. E. Shaw & Co., Inc.+430K sh+$325M
- Citadel Advisors LLC+385K sh+$291M
- Mitsubishi UFJ Asset Management Co., Ltd.+378K sh+$285M
- Carmignac Gestion+309K sh+$234M
- Jpmorgan Chase & Co−1.5M sh−$1.1B
- Fmr LLC−1.5M sh−$1.1B
- Alliancebernstein L.P.−554K sh−$479M
- BlackRock, Inc.−623K sh−$471M
- Invesco Ltd.−510K sh−$386M
- Acadian Asset Management LLC−473K sh−$357M
- Massachusetts Financial Services Co /ma/−454K sh−$344M
- Ameriprise Financial Inc−407K sh−$308M
MCK institutional ownership FAQ
Who owns the most MCK stock?
In Q2 2026 13F filings the largest holder of MCK was BlackRock, Inc., followed by Vanguard Capital Management LLC and State Street Corp. Index fund managers are usually the biggest holders of large companies.
What percentage of MCK is owned by institutions?
Funds that file 13F reports held 90.5% of MCK's shares at Jun 30, 2026, compared with 91.8% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying MCK?
In Q2 2026, 843 funds bought MCK (141 of them new positions) and 979 sold (181 sold out completely). Among well known investors, 5 added and 1 cut. Our fund sentiment for MCK is neutral.
What is MCK's institutional put/call ratio?
Funds reported $75.4M of MCK puts against $163M of calls, a put/call ratio of 0.46 (1.38 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this MCK ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.