Who owns McKesson (MCK)
Which tracked institutional funds hold MCK, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MCK company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on MCK is one-sided between 2026-Q1 and 2026-Q2: 13 added or opened and 1269 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
MCK’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.1% of its own reported 13F book, while the median holder sizes it at 0.2% of theirs — a 0.0pp gap the other way — the median holder sizes MCK more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in MCK divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 2021 tracked filers holding MCK, 905 increased or opened the position and 955 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in MCK between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 5
- PRIMECAP MANAGEMENT CO/CA/$15M
- Temasek Holdings (Private) Ltd$5M
- Schonfeld Strategic Advisors LLC$3M
- ExodusPoint Capital Management, LP$3M
- Verition Fund Management LLC$1M
Full exits 1254
- VANGUARD CAPITAL MANAGEMENT LLC$6.9B
- JPMORGAN CHASE & CO$2.8B
- FRANKLIN RESOURCES INC$2.7B
- MASSACHUSETTS FINANCIAL SERVICES CO /MA/$2.5B
- GEODE CAPITAL MANAGEMENT, LLC$2.5B
- VANGUARD PORTFOLIO MANAGEMENT LLC$2.5B
Largest adds
- D. E. Shaw & Co., Inc.$319M
- CITADEL ADVISORS LLC$283M
- RENAISSANCE TECHNOLOGIES LLC$171M
- TUDOR INVESTMENT CORP ET AL$86M
- MILLENNIUM MANAGEMENT LLC$27M
- Point72 Asset Management, L.P.$16M
Largest trims
- FMR LLC$1.5B
- BlackRock, Inc.$1.4B
- STATE STREET CORP$633M
- Invesco Ltd.$540M
- LONE PINE CAPITAL LLC$296M
- PRICE T ROWE ASSOCIATES INC /MD/$212M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 10,795,054 | $8.2B | 9.7% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 7,960,724 | $6.9B | 8.2% | 2026-Q1 |
| STATE STREET CORP trimmed | 5,727,118 | $4.3B | 5.1% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 3,268,340 | $2.8B | 3.3% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 3,063,145 | $2.7B | 3.1% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 2,900,233 | $2.5B | 3.0% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,903,848 | $2.5B | 3.0% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 2,883,068 | $2.5B | 3.0% | 2026-Q1 |
| MORGAN STANLEY trimmed | 2,299,625 | $2.0B | 2.4% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 2,240,697 | $1.8B | 2.2% | 2026-Q1 |
| FMR LLC trimmed | 2,130,288 | $1.6B | 1.9% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 1,538,726 | $1.3B | 1.6% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 1,462,181 | $1.3B | 1.5% | 2026-Q1 |
| NORGES BANK trimmed | 1,529,056 | $1.2B | 1.4% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 1,312,164 | $1.1B | 1.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 1,305,081 | $1.1B | 1.3% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 1,282,325 | $1.1B | 1.3% | 2026-Q1 |
| Boston Partners trimmed | 1,155,049 | $1.0B | 1.2% | 2026-Q1 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main added | 1,047,084 | $906M | 1.1% | 2026-Q1 |
| Swedbank AB added | 1,005,610 | $870M | 1.0% | 2026-Q1 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 988,046 | $842M | 1.0% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 944,938 | $818M | 1.0% | 2026-Q1 |
| Legal & General Group Plc added | 916,736 | $793M | 0.9% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 892,826 | $773M | 0.9% | 2026-Q1 |
| Invesco Ltd. trimmed | 981,173 | $741M | 0.9% | 2026-Q2 |
| WCM INVESTMENT MANAGEMENT, LLC added | 957,886 | $716M | 0.8% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 825,622 | $714M | 0.8% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 812,411 | $703M | 0.8% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 878,727 | $661M | 0.8% | 2026-Q2 |
| ACADIAN ASSET MANAGEMENT LLC added | 721,091 | $624M | 0.7% | 2026-Q1 |
| BARCLAYS PLC added | 712,800 | $617M | 0.7% | 2026-Q1 |
| TD Asset Management Inc trimmed | 710,446 | $615M | 0.7% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 705,647 | $611M | 0.7% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC trimmed | 628,945 | $544M | 0.6% | 2026-Q1 |
| Amundi added | 623,749 | $540M | 0.6% | 2026-Q1 |
| Nuveen, LLC added | 611,982 | $530M | 0.6% | 2026-Q1 |
| UBS Group AG trimmed | 609,491 | $527M | 0.6% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 575,886 | $498M | 0.6% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 630,012 | $476M | 0.6% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 459,676 | $398M | 0.5% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 459,058 | $397M | 0.5% | 2026-Q1 |
| Robeco Institutional Asset Management B.V. added | 458,244 | $397M | 0.5% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ added | 427,003 | $370M | 0.4% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 424,843 | $368M | 0.4% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 483,843 | $366M | 0.4% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 420,179 | $363M | 0.4% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 460,409 | $348M | 0.4% | 2026-Q2 |
| National Pension Service trimmed | 396,214 | $343M | 0.4% | 2026-Q1 |
| Winslow Capital Management, LLC trimmed | 379,576 | $328M | 0.4% | 2026-Q1 |
| Swiss National Bank added | 362,250 | $313M | 0.4% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 356,397 | $308M | 0.4% | 2026-Q1 |
| SurgoCap Partners LP trimmed | 348,732 | $302M | 0.4% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 331,398 | $287M | 0.3% | 2026-Q1 |
| California Public Employees Retirement System trimmed | 324,022 | $280M | 0.3% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 361,086 | $273M | 0.3% | 2026-Q2 |
| MACKENZIE FINANCIAL CORP added | 302,061 | $261M | 0.3% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 301,830 | $261M | 0.3% | 2026-Q1 |
| Capital International Investors added | 339,662 | $257M | 0.3% | 2026-Q2 |
| SEI INVESTMENTS CO added | 283,014 | $245M | 0.3% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 281,119 | $243M | 0.3% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 278,467 | $241M | 0.3% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 272,376 | $236M | 0.3% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 272,146 | $236M | 0.3% | 2026-Q1 |
| HSBC HOLDINGS PLC trimmed | 270,922 | $234M | 0.3% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC trimmed | 265,107 | $229M | 0.3% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 259,440 | $224M | 0.3% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO trimmed | 259,006 | $224M | 0.3% | 2026-Q1 |
| LPL Financial LLC added | 246,075 | $213M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 242,335 | $210M | 0.2% | 2026-Q1 |
| BESSEMER GROUP INC trimmed | 241,984 | $209M | 0.2% | 2026-Q1 |
| Candriam S.C.A. added | 239,664 | $207M | 0.2% | 2026-Q1 |
| PNC FINANCIAL SERVICES GROUP, INC. trimmed | 237,332 | $205M | 0.2% | 2026-Q1 |
| FARALLON CAPITAL MANAGEMENT LLC trimmed | 234,300 | $203M | 0.2% | 2026-Q1 |
| Clearbridge Investments, LLC trimmed | 230,683 | $200M | 0.2% | 2026-Q1 |
| DekaBank Deutsche Girozentrale | 227,498 | $199M | 0.2% | 2026-Q1 |
| FIL Ltd trimmed | 227,169 | $197M | 0.2% | 2026-Q1 |
| Allspring Global Investments Holdings, LLC added | 220,944 | $193M | 0.2% | 2026-Q1 |
| Scharf Investments, LLC trimmed | 221,582 | $192M | 0.2% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 216,171 | $187M | 0.2% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 214,693 | $186M | 0.2% | 2026-Q1 |
| Man Group plc trimmed | 193,035 | $167M | 0.2% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 191,424 | $166M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 191,183 | $165M | 0.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 186,934 | $162M | 0.2% | 2026-Q1 |
| Handelsbanken Fonder AB trimmed | 185,341 | $160M | 0.2% | 2026-Q1 |
| NATIXIS ADVISORS, LLC added | 183,104 | $158M | 0.2% | 2026-Q1 |
| PANAGORA ASSET MANAGEMENT INC trimmed | 180,882 | $157M | 0.2% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP added | 179,196 | $155M | 0.2% | 2026-Q1 |
| Public Sector Pension Investment Board trimmed | 175,821 | $152M | 0.2% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND trimmed | 175,151 | $152M | 0.2% | 2026-Q1 |
| BRANDES INVESTMENT PARTNERS, LP trimmed | 172,487 | $149M | 0.2% | 2026-Q1 |
| SG Americas Securities, LLC added | 166,792 | $144M | 0.2% | 2026-Q1 |
| SANDS CAPITAL MANAGEMENT, LLC trimmed | 183,535 | $139M | 0.2% | 2026-Q2 |
| TCW GROUP INC added | 158,219 | $137M | 0.2% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 156,792 | $136M | 0.2% | 2026-Q1 |
| Allianz Asset Management GmbH trimmed | 155,063 | $134M | 0.2% | 2026-Q1 |
| VANGUARD GROUP INC added | 12,104,719 | $9.9B | 11.8% | 2025-Q4 stale |
| Pacer Advisors, Inc. added | 442,175 | $360M | 0.4% | 2025-Q4 stale |
| GQG Partners LLC new | 490,526 | $359M | 0.4% | 2025-Q2 stale |
| Carmignac Gestion added | 358,535 | $294M | 0.3% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.