Free · no sign-up · Q2 2026

Which funds own XENE

Xenon Pharmaceuticals Inc in the Q2 2026 filings. At least 1 of the 91 current managers on file reported a position, worth $253m 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: $253m; as reported
Opened: 0; new this quarter
Added to: 1; already held
Trimmed or sold out: 1; 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
Janus Henderson Group Ltd Long-only · $245bn book	$253m	0.1%	4,186,519	+$9.8m+10,537	Added

Sold out of this quarter

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

Holocene Advisors LP · Long/short equity$88m held before

Ownership through time

At least 9 of the 95 managers whose filings are on file listed XENE in Q2 2026, against 1 in Q4 2014. 1 manager more than in Q1 2026: 1 started a position; 2 listed it again; 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

Marshall Wace LLP$42m

Largest increases, by shares

Marshall Wace LLPnew: 689,342 shares+$42m
Tudor Investment Corp495,591 to 545,387 shares+$3.0m
Capital World Investors840,072 to 862,775 shares+$1.4m
Janus Henderson Group Ltd4,175,982 to 4,186,519 shares+$636k

Largest decreases, by shares

Fidelity (FMR LLC)10,818,491 to 9,647,998 shares-$71m
Schonfeld Strategic Advisors LLC324,722 to 227,330 shares-$5.9m
ExodusPoint Capital Management LP173,425 to 84,591 shares-$5.4m

Left it

No manager on file is shown leaving it.

Manager	First listed	Largest	Q2 2026
Fidelity (FMR LLC)	Q1 2026	$629m	$582m
Janus Henderson Group Ltd	Q4 2023	$253m	$253m
Two Sigma Investments LP	Q4 2023	$99m	$99m
AllianceBernstein LP	Q4 2023	$91m	$91m
Capital World Investors	Q4 2014	$124m	$52m
Marshall Wace LLP	Q4 2021	$101m	$42m
Tudor Investment Corp	Q1 2026	$33m	$33m
Schonfeld Strategic Advisors LLC	Q2 2017	$19m	$14m
ExodusPoint Capital Management LP	Q1 2023	$14m	$5.1m
Wellington Management Group LLP	Q4 2023	$281m	last listed Q1 2026
Point72 Asset Management LP	Q1 2019	$93m	last listed Q2 2024
Holocene Advisors LP	Q1 2022	$88m	last listed Q1 2026
Woodline Partners LP	Q3 2021	$15m	last listed Q4 2023
Two Sigma Advisers LP	Q4 2023	$12m	last listed Q4 2025
Moore Capital Management LP	Q3 2018	$6.3m	last listed Q4 2025
Walleye Capital LLC	Q3 2018	$4.9m	last listed Q1 2023
PDT Partners LLC	Q2 2018	$372k	last listed Q2 2020

What XENE 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 XENE →

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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