L3VLUP
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 22 Jan 2026
Managers listing it
34
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 18 listed it in both
Shares listed
19,435,323
combined, among listed positions
Reported value
$23.6bn
combined, at the quarter end

Among the 92 comparable managers: 22 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +3,906,028.

Managers listing KLAC in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

34 of 34 holders

ActionFiling
Invesco Ltd4,538,425$5.5bn0.52%Added+3,035,61219 Feb 2026 (the filing on sec.gov)
Capital World Investors3,649,831$4.4bn0.60%Trimmed-568,46511 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc2,704,973$3.3bn0.35%Added+1,185,82917 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)2,544,216$3.1bn0.16%Added+31,59917 Feb 2026 (the filing on sec.gov)
MFS Investment Management1,740,082$2.1bn0.68%Trimmed-139,63522 Jan 2026 (the filing on sec.gov)
Janus Henderson Group Ltd1,352,323$1.6bn0.74%Trimmed-142,87417 Feb 2026 (the filing on sec.gov)
Arrowstreet Capital LP774,499$941m0.55%Added+182,64913 Feb 2026 (the filing on sec.gov)
Wellington Management Group LLP438,028$532m0.09%Trimmed-36,36717 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP252,479$307m0.10%Trimmed-2,04617 Feb 2026 (the filing on sec.gov)
Capital Research Global Investors191,943$233munder 0.1%Added+47311 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC190,838$232m0.25%Added+71,75213 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC161,647$196munder 0.1%Added+121,32017 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC146,374$178m0.09%Added+7,04717 Feb 2026 (the filing on sec.gov)
Acadian Asset Management LLC124,011$151m0.25%Added+78,78310 Feb 2026 (the filing on sec.gov)
Holocene Advisors LP120,996$147m0.31%Newnew17 Feb 2026 (the filing on sec.gov)
Man Group PLC85,028$103m0.18%Added+3,43417 Feb 2026 (the filing on sec.gov)
Bridgewater Associates LP78,367$95m0.35%Trimmed-34,37313 Feb 2026 (the filing on sec.gov)
Millennium Management LLC70,581$86munder 0.1%Added+11,37617 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC66,343$81m0.06%Trimmed-2,19427 Oct 2026 (the filing on sec.gov)
Susquehanna International Group LLP53,343$65munder 0.1%Trimmed-37,54117 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.39,535$48munder 0.1%Added+22,23217 Feb 2026 (the filing on sec.gov)
Walleye Capital LLC21,102$26m0.08%Added+18,19413 Feb 2026 (the filing on sec.gov)
Balyasny Asset Management LLC16,968$21munder 0.1%Added+16,71517 Feb 2026 (the filing on sec.gov)
Tudor Investment Corp16,000$19munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC15,669$19munder 0.1%Trimmed-67,14012 Feb 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q3 2025 to Q4 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.

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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 →