Free · no sign-up · Q2 2026

Which funds own VICR

Vicor Corp in the Q2 2026 filings. At least 4 of the 91 current managers on file reported a position, worth $983m between them. It is among the largest positions of fewer than a fifth of the current managers on file. The quarter went one way: 4 managers opened or added against 0 cutting.

Managers holding: 4; at least, of 91 current
Combined value: $983m; as reported
Opened: 1; new this quarter
Added to: 3; already held
Trimmed or sold out: 0; 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	$900m	0.1%	2,368,366	+$595m+479,920	Added
Acadian Asset Management LLC Quantitative · $84.2bn book	$77m	0.1%	202,077	+$63m+116,782	Added
Polen Capital Management LLC Long-only · $11.6bn book	$5.7m	0.0%	14,924	+$3.4m+1,025	Added
Maverick Capital Ltd Long/short equity · $11.3bn book	$700k	0.0%	1,805	opened1,805	New

Ownership through time

At least 10 of the 95 managers whose filings are on file listed VICR in Q2 2026, against 1 in Q1 2015. 3 managers more than in Q1 2026: 2 started positions; 2 listed it again; 1 no longer listed it among the positions read, which can mean a holding below the listed range 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

Caxton Associates LLP$1.2m
Maverick Capital Ltd$686k

Largest increases, by shares

T. Rowe Price Associates Inc1,888,446 to 2,368,366 shares+$182m
Acadian Asset Management LLC85,295 to 202,077 shares+$44m
Caxton Associates LLPnew: 3,159 shares+$1.2m
Maverick Capital Ltdnew: 1,805 shares+$686k
Polen Capital Management LLC13,899 to 14,924 shares+$389k

Largest decreases, by shares

Tudor Investment Corp137,316 to 83,690 shares-$20m
Bridgewater Associates LP33,207 to 18,444 shares-$5.6m
Arrowstreet Capital LP536,274 to 530,811 shares-$2.1m

Left it

No manager on file is shown leaving it.

Manager	First listed	Largest	Q2 2026
T. Rowe Price Associates Inc	Q1 2026	$899m	$899m
Arrowstreet Capital LP	Q1 2026	$202m	$202m
AQR Capital Management LLC	Q2 2026	$168m	$168m
Acadian Asset Management LLC	Q1 2026	$77m	$77m
Tudor Investment Corp	Q2 2019	$32m	$32m
ExodusPoint Capital Management LP	Q2 2022	$9.7m	$9.7m
Bridgewater Associates LP	Q1 2026	$7.0m	$7.0m
Polen Capital Management LLC	Q1 2026	$5.7m	$5.7m
Caxton Associates LLP	Q1 2019	$1.5m	$1.2m
Maverick Capital Ltd	Q2 2026	$686k	$686k
Capital Research Global Investors	Q4 2020	$142m	last listed Q4 2022
Whale Rock Capital Management LLC	Q2 2021	$140m	last listed Q3 2021
Voloridge Investment Management LLC	Q1 2022	$16m	last listed Q1 2024
Winton Group Ltd	Q2 2018	$13m	last listed Q1 2026
GAMCO Investors Inc	Q1 2015	$2.6m	last listed Q1 2018
Walleye Capital LLC	Q3 2021	$1.7m	last listed Q1 2022
PDT Partners LLC	Q1 2018	$1.5m	last listed Q4 2023
Quantbot Technologies LP	Q1 2022	$1.3m	last listed Q3 2023

What VICR 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 VICR →

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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The holdings, every quarter, and the week between

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