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Which funds own TW

Tradeweb MKTS Inc in the Q2 2026 filings. At least 6 of the 91 current managers on file reported a position, worth $2.5bn between them. It is among the largest positions of fewer than a fifth of the current managers on file. The quarter went one way: 5 managers opened or added against 1 cutting.

Managers holding: 6; at least, of 91 current
Combined value: $2.5bn; as reported
Opened: 2; new this quarter
Added to: 3; already held
Trimmed or sold out: 1; 0 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
T. Rowe Price Associates Inc Long-only · $999bn book	$1.6bn	0.2%	16,376,924	-$126m+1,436,428	Added
Wellington Management Group LLP Long-only · $580bn book	$618m	0.1%	6,204,054	-$265m-1,300,121	Trimmed
Marshall Wace LLP Quantitative · $127bn book	$128m	0.1%	1,282,797	+$83m+905,356	Added
Artisan Partners LP Long-only · $63.1bn book	$115m	0.2%	1,151,879	+$52m+621,078	Added
Viking Global Investors LP Long/short equity · $35.1bn book	$31m	0.1%	314,222	opened314,222	New
Freestone Grove Partners LP Multi-strategy · $15.6bn book	$23m	0.1%	228,694	opened228,694	New

Ownership through time

At least 15 of the 95 managers whose filings are on file listed TW in Q2 2026, against 13 in Q2 2019. 4 managers more than in Q1 2026: 4 started positions; 3 listed it again; 3 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

Largest increases, by shares

T. Rowe Price Associates Inc14,940,496 to 16,376,924 shares+$143m
Marshall Wace LLP377,441 to 1,282,797 shares+$90m
Artisan Partners LP530,801 to 1,151,879 shares+$62m
Viking Global Investors LPnew: 314,222 shares+$31m
Freestone Grove Partners LPnew: 228,694 shares+$23m

Largest decreases, by shares

Wellington Management Group LLP7,504,175 to 6,204,054 shares-$130m
Millennium Management LLC1,968,423 to 1,428,050 shares-$54m
AQR Capital Management LLC2,896,209 to 2,787,932 shares-$11m

Left it

No manager on file is shown leaving it.

Manager	First listed	Largest	Q2 2026
T. Rowe Price Associates Inc	Q2 2019	$1.8bn	$1.6bn
Wellington Management Group LLP	Q1 2021	$1.4bn	$618m
AQR Capital Management LLC	Q4 2025	$341m	$272m
Capital World Investors	Q2 2019	$434m	$231m
Millennium Management LLC	Q4 2019	$232m	$142m
Marshall Wace LLP	Q3 2019	$128m	$128m
Artisan Partners LP	Q4 2019	$405m	$115m
D. E. Shaw & Co.	Q1 2025	$112m	$112m
Two Sigma Investments LP	Q3 2019	$82m	$82m
Viking Global Investors LP	Q4 2025	$298m	$31m
Freestone Grove Partners LP	Q2 2025	$23m	$23m
Holocene Advisors LP	Q3 2019	$23m	$23m
Schonfeld Strategic Advisors LLC	Q2 2019	$17m	$17m
Walleye Capital LLC	Q2 2022	$12m	$12m
Brevan Howard Capital Management LP	Q4 2024	$6.5m	$4.7m
Capital Research Global Investors	Q2 2019	$748m	last listed Q3 2022
Renaissance Technologies LLC	Q3 2022	$268m	last listed Q1 2026
MFS Investment Management	Q2 2019	$216m	last listed Q2 2025
Neuberger Berman Group LLC	Q2 2019	$144m	last listed Q1 2026
Bridgewater Associates LP	Q1 2022	$59m	last listed Q4 2023
AllianceBernstein LP	Q1 2020	$54m	last listed Q2 2020
Two Sigma Advisers LP	Q4 2019	$52m	last listed Q1 2025
Arrowstreet Capital LP	Q3 2019	$52m	last listed Q1 2025
Coatue Management LLC	Q2 2019	$52m	last listed Q3 2019
Balyasny Asset Management LLC	Q2 2019	$47m	last listed Q2 2024

What TW 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 TW →

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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