Free · no sign-up · Q2 2026

Which funds own RMBS

Rambus Inc in the Q2 2026 filings. At least 3 of the 91 current managers on file reported a position, worth $175m 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: 3; at least, of 91 current
Combined value: $175m; as reported
Opened: 1; new this quarter
Added to: 1; already held
Trimmed or sold out: 2; 1 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
Neuberger Berman Group LLC Long-only · $150bn book	$173m	0.1%	1,311,777	+$62m+9,608	Added
Discovery Capital Management LLC Macro · $2.4bn book	$1.3m	0.1%	9,965	opened9,965	New
Maverick Capital Ltd Long/short equity · $11.3bn book	$600k	0.0%	4,309	-$500k-8,719	Trimmed

Sold out of this quarter

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

Steadfast Capital Management LP · Long/short equity$13m held before

Ownership through time

At least 12 of the 95 managers whose filings are on file listed RMBS in Q2 2026, against 1 in Q2 2013. 4 managers more than in Q1 2026: 4 started positions; 3 listed it again; 1 sold out, by its own filing; 2 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

Tudor Investment Corp$21m
Brevan Howard Capital Management LP$5.7m
ExodusPoint Capital Management LP$5.1m
Discovery Capital Management LLC$1.3m

Largest increases, by shares

Tudor Investment Corpnew: 157,155 shares+$21m
Invesco Ltd6,499,048 to 6,632,458 shares+$18m
Brevan Howard Capital Management LPnew: 43,098 shares+$5.7m
ExodusPoint Capital Management LPnew: 38,091 shares+$5.1m
Discovery Capital Management LLCnew: 9,965 shares+$1.3m

Largest decreases, by shares

T. Rowe Price Associates Inc3,376,689 to 3,334,512 shares-$5.6m
AQR Capital Management LLC1,250,456 to 1,211,009 shares-$5.0m
Maverick Capital Ltd13,028 to 4,309 shares-$1.2m

Left it

Steadfast Capital Management LPwas $13m

Manager	First listed	Largest	Q2 2026
Fidelity (FMR LLC)	Q2 2026	$1.4bn	$1.4bn
Invesco Ltd	Q4 2025	$880m	$880m
T. Rowe Price Associates Inc	Q4 2024	$547m	$443m
Neuberger Berman Group LLC	Q2 2015	$217m	$173m
AQR Capital Management LLC	Q2 2024	$152m	$152m
D. E. Shaw & Co.	Q4 2022	$98m	$98m
Janus Henderson Group Ltd	Q3 2025	$40m	$38m
Tudor Investment Corp	Q1 2018	$21m	$21m
Brevan Howard Capital Management LP	Q4 2023	$5.7m	$5.7m
ExodusPoint Capital Management LP	Q1 2019	$11m	$5.1m
Discovery Capital Management LLC	Q4 2022	$4.1m	$1.3m
Maverick Capital Ltd	Q1 2026	$1.1m	$572k
Wellington Management Group LLP	Q1 2023	$364m	last listed Q2 2024
AllianceBernstein LP	Q3 2025	$190m	last listed Q4 2025
Millennium Management LLC	Q4 2023	$127m	last listed Q4 2023
Whale Rock Capital Management LLC	Q1 2023	$105m	last listed Q3 2023
Renaissance Technologies LLC	Q3 2015	$62m	last listed Q4 2020
Two Sigma Investments LP	Q1 2022	$35m	last listed Q4 2024
Schonfeld Strategic Advisors LLC	Q2 2017	$29m	last listed Q1 2025
Artisan Partners LP	Q2 2023	$29m	last listed Q2 2024
Arrowstreet Capital LP	Q4 2019	$25m	last listed Q2 2023
Two Sigma Advisers LP	Q2 2014	$24m	last listed Q1 2025

What RMBS 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 RMBS →

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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