Free · no sign-up · Q2 2026

Which funds own PTCT

PTC Therapeutics Inc in the Q2 2026 filings. At least 3 of the 91 current managers on file reported a position, worth $598m 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: $598m; as reported
Opened: 1; new this quarter
Added to: 2; 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	$590m	0.2%	7,236,402	+$100m+42,969	Added
Moore Capital Management LP Macro · $6.7bn book	$6.2m	0.1%	75,588	+$3.1m+30,894	Added
Polen Capital Management LLC Long-only · $11.6bn book	$2.0m	0.0%	24,916	opened24,916	New

Sold out of this quarter

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

Woodline Partners LP · Long/short equity$51m held before

Ownership through time

At least 9 of the 95 managers whose filings are on file listed PTCT in Q2 2026, against 2 in Q3 2014. 1 manager more than in Q1 2026: 1 started a position; 2 listed it again; 1 sold out, by its own filing; 1 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

Polen Capital Management LLC$2.0m

Largest increases, by shares

Renaissance Technologies LLC533,300 to 723,500 shares+$16m
Wellington Management Group LLP3,942,610 to 4,128,273 shares+$15m
Janus Henderson Group Ltd7,193,433 to 7,236,402 shares+$3.5m
Moore Capital Management LP44,694 to 75,588 shares+$2.5m
Polen Capital Management LLCnew: 24,916 shares+$2.0m

Largest decreases, by shares

Schonfeld Strategic Advisors LLC318,405 to 147,425 shares-$14m
D. E. Shaw & Co.1,640,381 to 1,548,919 shares-$7.5m

Left it

Woodline Partners LPwas $51m

Manager	First listed	Largest	Q2 2026
Janus Henderson Group Ltd	Q4 2019	$590m	$590m
Wellington Management Group LLP	Q3 2014	$570m	$337m
D. E. Shaw & Co.	Q2 2017	$133m	$126m
Renaissance Technologies LLC	Q4 2024	$59m	$59m
Marshall Wace LLP	Q3 2019	$57m	$57m
Hudson Bay Capital Management LP	Q4 2017	$13m	$13m
Schonfeld Strategic Advisors LLC	Q1 2016	$22m	$12m
Moore Capital Management LP	Q1 2015	$10m	$6.2m
Polen Capital Management LLC	Q2 2026	$2.0m	$2.0m
Fidelity (FMR LLC)	Q1 2015	$623m	last listed Q2 2023
T. Rowe Price Associates Inc	Q2 2019	$194m	last listed Q4 2019
Point72 Asset Management LP	Q3 2014	$119m	last listed Q4 2025
AllianceBernstein LP	Q4 2015	$108m	last listed Q1 2021
Citadel Advisors LLC	Q1 2019	$81m	last listed Q2 2019
Millennium Management LLC	Q2 2019	$56m	last listed Q2 2019
Woodline Partners LP	Q4 2019	$51m	last listed Q1 2026
Farallon Capital Management LLC	Q3 2018	$35m	last listed Q4 2019
Balyasny Asset Management LLC	Q4 2014	$33m	last listed Q3 2018
Man Group PLC	Q2 2025	$33m	last listed Q2 2025

What PTCT 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 PTCT →

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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