Free · no sign-up · Q2 2026

Which funds own LDOS

Leidos Holdings Inc in the Q2 2026 filings. At least 2 of the 91 current managers on file reported a position, worth $67m 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: 2; at least, of 91 current
Combined value: $67m; as reported
Opened: 1; new this quarter
Added to: 1; already held
Trimmed or sold out: 3; 3 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
Woodline Partners LP Long/short equity · $32.4bn book	$62m	0.2%	606,332	+$54m+549,872	Added
Caxton Associates LLP Macro · $5.3bn book	$4.7m	0.1%	45,412	opened45,412	New

Sold out of this quarter

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

Renaissance Technologies LLC · Quantitative$20m held before
Quantbot Technologies LP · Quantitative$5.7m held before
PDT Partners LLC · Quantitative$1.0m held before

Ownership through time

At least 8 of the 95 managers whose filings are on file listed LDOS in Q2 2026, against 3 in Q4 2013. 6 managers fewer than in Q1 2026: 2 started positions; 4 listed it again; 2 sold out, by their own filings; 10 no longer listed it among the positions read, which can mean a holding below the listed range, a filing that reported no holdings, 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

Holocene Advisors LP$8.6m
Caxton Associates LLP$4.7m

Largest increases, by shares

MFS Investment Management1,832,386 to 2,004,766 shares+$18m
Holocene Advisors LPnew: 83,763 shares+$8.6m
Caxton Associates LLPnew: 45,412 shares+$4.7m

Largest decreases, by shares

Voloridge Investment Management LLC163,041 to 95,197 shares-$7.0m

Left it

Quantbot Technologies LPwas $5.7m
PDT Partners LLCwas $1.0m

Manager	First listed	Largest	Q2 2026
MFS Investment Management	Q3 2016	$420m	$209m
Woodline Partners LP	Q4 2021	$62m	$62m
Bridgewater Associates LP	Q1 2020	$28m	$16m
Verition Fund Management LLC	Q1 2017	$50m	$11m
Voloridge Investment Management LLC	Q4 2016	$25m	$9.8m
Holocene Advisors LP	Q2 2018	$40m	$8.6m
Caxton Associates LLP	Q2 2017	$4.7m	$4.7m
Brevan Howard Capital Management LP	Q1 2024	$7.2m	$3.6m
Wellington Management Group LLP	Q4 2018	$925m	last listed Q2 2024
Fidelity (FMR LLC)	Q2 2017	$792m	last listed Q4 2025
Invesco Ltd	Q4 2019	$393m	last listed Q1 2026
T. Rowe Price Associates Inc	Q4 2020	$393m	last listed Q3 2024
AllianceBernstein LP	Q3 2019	$364m	last listed Q1 2026
AQR Capital Management LLC	Q4 2013	$290m	last listed Q1 2026
Neuberger Berman Group LLC	Q3 2014	$232m	last listed Q1 2026
Millennium Management LLC	Q4 2014	$186m	last listed Q1 2025
Citadel Advisors LLC	Q4 2016	$163m	last listed Q3 2024
Arrowstreet Capital LP	Q3 2022	$129m	last listed Q2 2025

What LDOS 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.

Build the comp set around LDOS →

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.

Comps ExplorerValue it against the peers it trades beside Every managerRead any of these books in full Deal tapeWhat buyers paid for whole companies, not slices Hedge fund interviewsHow the room runs, and the stock pitch it wants

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The holdings, every quarter, and the week between

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