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MCK in the 13F filings

Mckesson Corp · CUSIP 58155Q103

Sector · Health care services and research
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
31
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 20 listed it in both
Shares listed
16,300,306
combined, among listed positions
Reported value
$14.0bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 12 buyers (opened or added shares) and 24 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -224,693.

Managers listing MCK in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

31 of 31 holders

ActionFiling
Fidelity (FMR LLC)3,603,423$3.1bn0.16%Added+398,30115 May 2026 (the filing on sec.gov)
MFS Investment Management2,900,233$2.5bn0.85%Trimmed-545,89014 May 2026 (the filing on sec.gov)
AllianceBernstein LP2,240,697$1.8bn0.60%Trimmed-246,00615 May 2026 (the filing on sec.gov)
Invesco Ltd1,491,598$1.3bn0.13%Added+438,85912 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP1,312,164$1.1bn0.61%Trimmed-64,11214 May 2026 (the filing on sec.gov)
AQR Capital Management LLC907,472$784m0.36%Trimmed-11,31315 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc794,655$688m0.08%Trimmed-42,76315 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC721,091$624m0.89%Added+3,68813 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd628,945$544m0.26%Trimmed-89,11518 May 2026 (the filing on sec.gov)
Lone Pine Capital LLC392,224$339m2.71%Newnew15 May 2026 (the filing on sec.gov)
Farallon Capital Management LLC234,300$203m1.06%Trimmed-64,60015 May 2026 (the filing on sec.gov)
Man Group PLC193,035$167m0.30%Trimmed-25,00715 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC123,701$107m0.08%Trimmed-2,46227 Oct 2026 (the filing on sec.gov)
Renaissance Technologies LLC117,246$101m0.16%Added+55,96014 May 2026 (the filing on sec.gov)
Jane Street Group LLC80,728$70munder 0.1%Added+66,44812 May 2026 (the filing on sec.gov)
Citadel Advisors LLC75,208$65munder 0.1%Added+12,08015 May 2026 (the filing on sec.gov)
Marshall Wace LLP74,488$64m0.06%Trimmed-30,51215 May 2026 (the filing on sec.gov)
Bridgewater Associates LP67,381$58m0.26%Trimmed-3215 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC63,203$55m0.06%Added+31,09215 May 2026 (the filing on sec.gov)
Millennium Management LLC57,403$50munder 0.1%Trimmed-158,78015 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.53,347$46munder 0.1%Trimmed-49,21615 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC52,904$46m0.06%Added+49,99115 May 2026 (the filing on sec.gov)
Wellington Management Group LLP40,624$35munder 0.1%Trimmed-175,30715 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP23,940$21munder 0.1%Trimmed-9,71215 May 2026 (the filing on sec.gov)
Woodline Partners LP21,685$19m0.07%Added+11,27515 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (3)

Exited (6)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
24 in Q3 2024 to 25 in Q2 2026

Tracked managers listing it, at least.

0102030402014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MCK by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201318$6.3bnn.a.n.a.
Q3 201318$6.7bnn.a.n.a.
Q4 201322$8.9bnn.a.n.a.
Q1 201416$9.3bnn.a.n.a.
Q2 201424$10.9bnn.a.n.a.
Q3 201428$11.5bnn.a.n.a.
Q4 201421$11.9bnn.a.n.a.
Q1 201524$13.0bnn.a.n.a.
Q2 201526$12.6bnn.a.n.a.
Q3 201526$10.1bnn.a.n.a.
Q4 201522$10.1bnn.a.n.a.
Q1 201625$8.2bnn.a.n.a.
Q2 201621$10.1bnn.a.n.a.
Q3 201623$9.6bnn.a.n.a.
Q4 201626$8.3bnn.a.n.a.
Q1 201719$7.3bnn.a.n.a.
Q2 201722$7.2bnn.a.n.a.
Q3 201718$7.4bnn.a.n.a.
Q4 201717$8.0bnn.a.n.a.
Q1 201818$6.9bnn.a.n.a.
Q2 201819$6.1bnn.a.n.a.
Q3 201825$5.1bnn.a.n.a.
Q4 201821$4.1bnn.a.n.a.
Q1 201916$4.2bnn.a.n.a.
Q2 201916$4.3bnn.a.n.a.
Q3 201920$4.1bnn.a.n.a.
Q4 201922$4.2bnn.a.n.a.
Q1 202027$3.6bnn.a.n.a.
Q2 202023$3.6bnn.a.n.a.
Q3 202023$3.4bnn.a.n.a.
Q4 202021$3.2bnn.a.n.a.
Q1 202118$3.7bnn.a.n.a.
Q2 202120$3.9bnn.a.n.a.
Q3 202116$3.6bnn.a.n.a.
Q4 202121$4.6bnn.a.n.a.
Q1 202218$6.4bnn.a.n.a.
Q2 202222$7.5bnn.a.n.a.
Q3 202222$8.1bnn.a.n.a.
Q4 202225$8.8bnn.a.n.a.
Q1 202327$9.1bnn.a.n.a.
Q2 202331$9.4bnn.a.n.a.
Q3 202327$9.3bnn.a.n.a.
Q4 202331$9.7bn1618
Q1 202431$10.0bn1221
Q2 202428$10.3bn1415
Q3 202424$7.6bn1214
Q4 202430$9.5bn1911
Q1 202528$10.7bn1514
Q2 202524$12.0bn1312
Q3 202524$12.8bn1410
Q4 202523$13.4bn2217
Q1 202621$13.7bn1224
Q2 202625$10.8bn2315

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

MCK and UNH →MCK and ELV →MCK and CI →Choose a stock to compare with MCK →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own MCK, latest filings →Back to the 13F Explorer →