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Which funds own OIS

Oil STS Intl Inc in the Q2 2026 filings. At least 1 of the 91 current managers on file reported a position, worth $16m 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: 1; at least, of 91 current
Combined value: $16m; as reported
Opened: 0; new this quarter
Added to: 0; 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
First Eagle Investment Management LLC Value · $60.8bn book	$16m	0.0%	2,005,677	-$7.7m-38,032	Trimmed

Ownership through time

At least 2 of the 95 managers whose filings are on file listed OIS in Q2 2026, against 9 in Q2 2013. The same number as in Q1 2026.

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

No manager on file started a position.

Largest increases, by shares

No manager on file bought more.

Largest decreases, by shares

Acadian Asset Management LLC2,352,385 to 2,042,288 shares-$2.5m
First Eagle Investment Management LLC2,043,709 to 2,005,677 shares-$305k

Left it

No manager on file is shown leaving it.

Manager	First listed	Largest	Q2 2026
Acadian Asset Management LLC	Q1 2021	$27m	$16m
First Eagle Investment Management LLC	Q4 2021	$24m	$16m
Jana Partners	Q2 2013	$623m	last listed Q2 2014
Capital World Investors	Q2 2013	$601m	last listed Q4 2016
Fidelity (FMR LLC)	Q2 2013	$438m	last listed Q1 2014
AllianceBernstein LP	Q2 2013	$159m	last listed Q4 2019
Point72 Asset Management LP	Q4 2014	$73m	last listed Q2 2017
Renaissance Technologies LLC	Q2 2013	$67m	last listed Q2 2014
Millennium Management LLC	Q2 2013	$61m	last listed Q4 2015
D. E. Shaw & Co.	Q3 2013	$47m	last listed Q4 2013
MFS Investment Management	Q1 2016	$46m	last listed Q3 2018
AQR Capital Management LLC	Q2 2014	$45m	last listed Q1 2016

What OIS 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 OIS →

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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Illustrative figures. Default values are plausible starting points chosen so a model has somewhere to begin. They are not data, not a view on any company, and not calibrated to anything. Outputs move with whatever you type in.

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The holdings, every quarter, and the week between

One email a week on what moved in the market and what it means for the people interviewing into it, with the 13F changes the quarter they are filed.

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