Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.
MCK
MCKESSON CORPData as of 2026 Q1 (03-31) · 13F snapshot
Summary
MCKESSON CORP (MCK) is held by 14 tracked hedge-fund managers, a combined reported value of ~$2.37B; the largest are Warren Buffett, Stephen Mandel, Seth Klarman. This quarter: 1 new, 3 added, 1 trimmed, 1 closed. 20 members of Congress have disclosed STOCK Act trades. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · HighThis quarter · Heating up
Gurus holding14
Congress trades20
Price$784.05vs quarter-end-9.40%
Sectors1
This quarter's moves
Top holderWarren BuffettNew1
Added3
Trimmed / sold2
Stephen MandelNew large stake
Value $339.41M2.7% of portfolio392,2242026 Q1
Seth KlarmanHold
Value $248.59M2.7% of portfolio1,669,1812020 Q3
Value $130.50M— of portfolio682,4002021 Q2
Value $99.08M— of portfolio114,5002026 Q1
Value $83.03M0.3% of portfolio142,1692024 Q2
Value $80.22M— of portfolio92,7002026 Q1
Dan LoebNew large stake
Value $76.39M1.2% of portfolio165,0002023 Q4
Value $75.89M— of portfolio87,7002026 Q1
Ray DalioHold
Value $58.31M0.3% of portfolio67,3812026 Q1
Value $25.10M— of portfolio29,0002026 Q1
Value $20.08M— of portfolio23,2002026 Q1
Value $18.43M— of portfolio21,3002026 Q1
Michael BurryNew large stake
Value $4.42M4.3% of portfolio40,0002018 Q4
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Stephen Mandel | $339.41M | 2.7% | New large stake |
| Seth Klarman | $248.59M | 2.7% | Hold |
| Michael BurryCALL | $130.50M | — | — |
| Ken GriffinCALL | $99.08M | — | — |
| Andreas Halvorsen | $83.03M | 0.3% | Trim |
| Izzy EnglanderPUT | $80.22M | — | — |
| Dan Loeb | $76.39M | 1.2% | New large stake |
| Ken GriffinPUT | $75.89M | — | — |
| Ray Dalio | $58.31M | 0.3% | Hold |
| Izzy EnglanderCALL | $25.10M | — | — |
| Steven CohenCALL | $20.08M | — | — |
| Steven CohenPUT | $18.43M | — | — |
| Michael Burry | $4.42M | 4.3% | New large stake |