L3VLUP
Quarter end
31 Mar 2025
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 2 May 2025
Managers listing it
27
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q4 2024 and Q1 2025; 22 listed it in both
Shares listed
12,778,210
combined, among listed positions
Reported value
$8.7bn
combined, at the quarter end

Among the 95 comparable managers: 15 buyers (opened or added shares) and 13 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing KLAC in Q1 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

27 of 27 holders

ActionFiling
Fidelity (FMR LLC)2,333,921$1.6bn0.10%Added+200,0565 Nov 2026 (the filing on sec.gov)
MFS Investment Management1,699,689$1.2bn0.38%Trimmed-350,0722 May 2025 (the filing on sec.gov)
T. Rowe Price Associates Inc1,652,461$1.1bn0.14%Trimmed-12,21314 May 2025 (the filing on sec.gov)
Janus Henderson Group Ltd1,628,923$1.1bn0.60%Added+178,10015 May 2025 (the filing on sec.gov)
Wellington Management Group LLP1,416,876$963m0.19%Trimmed-74,32313 May 2025 (the filing on sec.gov)
Invesco Ltd1,404,159$955m0.18%Trimmed-23612 May 2025 (the filing on sec.gov)
Capital World Investors675,430$459m0.07%Newnew12 May 2025 (the filing on sec.gov)
AllianceBernstein LP381,461$259m0.09%Added+49,39015 May 2025 (the filing on sec.gov)
D. E. Shaw & Co.368,102$250m0.22%Trimmed-91,25915 May 2025 (the filing on sec.gov)
Capital Research Global Investors332,486$226munder 0.1%Added+35,38012 May 2025 (the filing on sec.gov)
Holocene Advisors LP142,741$97m0.28%Added+137,08215 May 2025 (the filing on sec.gov)
Voloridge Investment Management LLC123,836$84m0.31%Trimmed-201,57515 May 2025 (the filing on sec.gov)
AQR Capital Management LLC115,372$77m0.08%Added+15,33015 May 2025 (the filing on sec.gov)
Man Group PLC94,049$64m0.16%Trimmed-101,85715 May 2025 (the filing on sec.gov)
Renaissance Technologies LLC91,109$62m0.09%Trimmed-141,20014 May 2025 (the filing on sec.gov)
Neuberger Berman Group LLC58,713$40munder 0.1%Addedn.a.27 Oct 2026 (the filing on sec.gov)
Acadian Asset Management LLC41,784$28m0.08%Added+11,44221 May 2025 (the filing on sec.gov)
Verition Fund Management LLC37,363$25m0.12%Added+14,93215 May 2025 (the filing on sec.gov)
Two Sigma Investments LP36,870$25m0.05%Trimmed-85,76815 May 2025 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC36,170$25m0.15%Added+27,89015 May 2025 (the filing on sec.gov)
Bridgewater Associates LP29,666$20m0.09%Trimmed-86,17514 May 2025 (the filing on sec.gov)
Two Sigma Advisers LP27,400$19munder 0.1%Trimmed-165,30015 May 2025 (the filing on sec.gov)
ExodusPoint Capital Management LP22,801$16m0.15%Newnew14 May 2025 (the filing on sec.gov)
Brevan Howard Capital Management LP12,690$8.6m0.08%Added+8,79115 May 2025 (the filing on sec.gov)
Hudson Bay Capital Management LP10,979$7.5munder 0.1%Newnew14 May 2025 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2024 to Q1 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
28 in Q3 2024 to 28 in Q2 2026

Tracked managers listing it, at least.

0102030split2014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
KLAC by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201311$1.6bnn.a.n.a.
Q3 201312$1.8bnn.a.n.a.
Q4 201311$1.8bnn.a.n.a.
Q1 201411$1.8bnn.a.n.a.
Q2 201415$1.9bnn.a.n.a.
Q3 20149$3.0bnn.a.n.a.
Q4 20149$2.8bnn.a.n.a.
Q1 201510$2.3bnn.a.n.a.
Q2 201512$2.3bnn.a.n.a.
Q3 20158$2.1bnn.a.n.a.
Q4 201514$1.6bnn.a.n.a.
Q1 201612$906mn.a.n.a.
Q2 201614$623mn.a.n.a.
Q3 201612$601mn.a.n.a.
Q4 201618$1.2bnn.a.n.a.
Q1 201713$2.0bnn.a.n.a.
Q2 201718$2.1bnn.a.n.a.
Q3 201714$1.9bnn.a.n.a.
Q4 201716$2.5bnn.a.n.a.
Q1 201818$2.9bnn.a.n.a.
Q2 201820$3.0bnn.a.n.a.
Q3 201820$3.0bnn.a.n.a.
Q4 201816$2.0bnn.a.n.a.
Q1 201915$2.5bnn.a.n.a.
Q2 201913$2.6bnn.a.n.a.
Q3 201914$3.9bnn.a.n.a.
Q4 201915$4.2bnn.a.n.a.
Q1 202014$2.9bnn.a.n.a.
Q2 202016$4.0bnn.a.n.a.
Q3 202015$4.0bnn.a.n.a.
Q4 202014$5.3bnn.a.n.a.
Q1 202118$7.4bnn.a.n.a.
Q2 202126$7.3bnn.a.n.a.
Q3 202125$7.3bnn.a.n.a.
Q4 202125$9.0bnn.a.n.a.
Q1 202224$6.8bnn.a.n.a.
Q2 202217$6.3bnn.a.n.a.
Q3 202215$5.7bnn.a.n.a.
Q4 202214$6.6bnn.a.n.a.
Q1 202322$6.7bnn.a.n.a.
Q2 202322$8.3bnn.a.n.a.
Q3 202325$8.2bnn.a.n.a.
Q4 202323$10.0bn1013
Q1 202416$11.0bn613
Q2 202421$12.7bn147
Q3 202428$11.2bn1811
Q4 202425$8.0bn1116
Q1 202527$8.7bn1513
Q2 202522$12.2bn1112
Q3 202519$16.5bn1111
Q4 202525$23.4bn2214
Q1 202622$32.6bn2019
Q2 2026 (split)28$78.0bn64

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

KLAC and NVDA →KLAC and AVGO →KLAC and MU →Choose a stock to compare with KLAC →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own KLAC, latest filings →Back to the 13F Explorer →