Free · no sign-up · Q2 2026

Which funds own MCK

Mckesson Corp in the Q2 2026 filings. At least 16 of the 91 current managers on file reported a position, worth $6.9bn between them. It is among the largest positions of fewer than a fifth of the current managers on file. Buying and selling roughly cancelled this quarter, which is what a name looks like when the argument is still live.

Managers holding: 16; at least, of 91 current
Combined value: $6.9bn; as reported
Opened: 1; new this quarter
Added to: 8; already held
Trimmed or sold out: 9; 2 sold out entirely

Only each manager’s largest 200 positions are listed here, so a smaller holder may be missing.

Managers reporting a position

Largest first. Weight is the share of that manager’s whole reported book, which is the number worth quoting: $400m is a rounding error in one book and a defining bet in another.

Manager	Value	Weight	Shares	Change on the quarter	Action
MFS Investment Management Long-only · $315bn book	$1.9bn	0.6%	2,446,386	-$670m-453,847	Trimmed
AllianceBernstein LP Long-only · $302bn book	$1.5bn	0.5%	1,686,993	-$378m-553,704	Trimmed
Arrowstreet Capital LP Quantitative · $225bn book	$1.2bn	0.5%	1,551,950	+$37m+239,786	Added
AQR Capital Management LLC Quantitative · $287bn book	$661m	0.2%	878,727	-$123m-28,745	Trimmed
D. E. Shaw & Co. Quantitative · $210bn book	$366m	0.2%	483,843	+$319m+430,496	Added
Janus Henderson Group Ltd Long-only · $245bn book	$347m	0.1%	459,652	-$197m-169,293	Trimmed
Renaissance Technologies LLC Quantitative · $72.6bn book	$273m	0.4%	361,086	+$171m+243,840	Added
Acadian Asset Management LLC Quantitative · $84.2bn book	$188m	0.2%	248,377	-$436m-472,714	Trimmed
Squarepoint Ops LLC Multi-strategy · $90.5bn book	$144m	0.2%	190,280	+$89m+127,077	Added
Man Group PLC Quantitative · $62.7bn book	$129m	0.2%	170,945	-$38m-22,090	Trimmed
Tudor Investment Corp Macro · $71.9bn book	$101m	0.1%	134,220	+$87m+116,970	Added
Bridgewater Associates LP Macro · $24.4bn book	$53m	0.2%	70,358	-$5.1m+2,977	Added
Lone Pine Capital LLC Long/short equity · $16.4bn book	$44m	0.3%	57,851	-$296m-334,373	Trimmed
Walleye Capital LLC Multi-strategy · $28.0bn book	$33m	0.1%	43,097	+$33m+43,030	Added
PDT Partners LLC Quantitative · $1.9bn book	$17m	0.9%	22,100	opened22,100	New
Quantbot Technologies LP Quantitative · $2.5bn book	$15m	0.6%	19,442	+$12m+16,549	Added

Sold out of this quarter

Valued at what the position was worth in the previous filing, because by this one it is gone.

Farallon Capital Management LLC · Long/short equity$203m held before
Marshall Wace LLP · Quantitative$65m held before

Ownership through time

At least 25 of the 95 managers whose filings are on file listed MCK in Q2 2026, against 18 in Q2 2013. 4 managers more than in Q1 2026: 2 started positions; 6 listed it again; 2 sold out, by their own filings; 2 no longer listed it among the positions read, which can mean a holding below the listed range or a filing not yet made.

Each manager’s largest 500 positions a quarter are read, so a small holding in a very large book can be missing, and a manager is counted as leaving only where its own filing shows it.

Managers on file listing it

Their combined reported value

Between the quarter ends of Q1 2026 and Q2 2026. Each change in shares is valued at the Q2 2026 price, so the price’s own move is left out; a 13F shows the two quarter ends, not when in between anything was bought or sold.

Started in Q2 2026

Point72 Asset Management LP$54m
PDT Partners LLC$17m

Largest increases, by shares

Renaissance Technologies LLC117,246 to 361,086 shares+$184m
Arrowstreet Capital LP1,312,164 to 1,551,950 shares+$181m
Squarepoint Ops LLC63,203 to 190,280 shares+$96m
Point72 Asset Management LPnew: 71,941 shares+$54m
PDT Partners LLCnew: 22,100 shares+$17m

Largest decreases, by shares

Fidelity (FMR LLC)3,603,423 to 2,130,288 shares-$1.1bn
AllianceBernstein LP2,240,697 to 1,686,993 shares-$479m
Invesco Ltd1,491,598 to 981,173 shares-$386m
Acadian Asset Management LLC721,091 to 248,377 shares-$357m
MFS Investment Management2,900,233 to 2,446,386 shares-$344m

Left it

Farallon Capital Management LLCwas $203m
Marshall Wace LLPwas $64m

Manager	First listed	Largest	Q2 2026
MFS Investment Management	Q4 2013	$3.1bn	$1.9bn
Fidelity (FMR LLC)	Q2 2013	$3.1bn	$1.6bn
AllianceBernstein LP	Q2 2013	$2.0bn	$1.5bn
Arrowstreet Capital LP	Q2 2018	$1.2bn	$1.2bn
Invesco Ltd	Q2 2013	$1.3bn	$741m
AQR Capital Management LLC	Q2 2013	$784m	$661m
Jane Street Group LLC	Q3 2015	$564m	$564m
T. Rowe Price Associates Inc	Q2 2013	$5.2bn	$476m
D. E. Shaw & Co.	Q4 2013	$366m	$366m
Citadel Advisors LLC	Q4 2015	$418m	$348m
Janus Henderson Group Ltd	Q2 2013	$589m	$347m
Renaissance Technologies LLC	Q2 2013	$273m	$273m
Acadian Asset Management LLC	Q3 2013	$624m	$188m
Squarepoint Ops LLC	Q1 2015	$144m	$144m
Man Group PLC	Q1 2018	$236m	$129m
Wellington Management Group LLP	Q2 2013	$3.7bn	last listed Q4 2025
Capital Research Global Investors	Q2 2013	$1.9bn	last listed Q1 2018
Viking Global Investors LP	Q4 2013	$1.1bn	last listed Q2 2024
Berkshire Hathaway Inc	Q1 2022	$1.1bn	last listed Q1 2023
Glenview Capital Management LLC	Q2 2013	$646m	last listed Q4 2025
Holocene Advisors LP	Q1 2018	$394m	last listed Q4 2025
Marshall Wace LLP	Q3 2014	$383m	last listed Q1 2026
Farallon Capital Management LLC	Q1 2014	$372m	last listed Q1 2026
Millennium Management LLC	Q2 2013	$363m	last listed Q4 2025
Maverick Capital Ltd	Q2 2014	$362m	last listed Q1 2024

What MCK is worth

Knowing who owns it is half the question. The other half is what it is worth against the companies it trades beside, which is the one an interviewer will follow up with.

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How much of the picture this is

A Form 13F reports US-listed long equity and nothing else: no shorts, no bonds, no cash and no non-US listings. It arrives forty-five days after the quarter ends, so a manager who sold in July still shows the position in a filing published in August. This page reads the managers on file here rather than every filer in the market, and each manager’s largest positions rather than the whole table, so a small position in a very large book may not appear. Say “their last filing showed” rather than “they own”, and the distinction will do you credit.

What to do with a name the funds are buying

Knowing who owns something is the start of a pitch, not the pitch. The next questions are what it is worth and why they were buying.

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