Ticker · CUSIP 482480100

KLAC

KLA CORP

Technology·Semiconductor Equipment & Materials

···Share

Holders (tracked)

Combined shares

7,241,078

Combined value

$8.80B

Last close

$1791.44

Quarter

2025Q4

Price is +47.4% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$1791+1161.78 (+184.51%)H $1796 · L $616.13 · Avg Vol 1.0M

Congress buyCongress sell

Tracked holders · last 8 quarters

+6 vs previous quarter over the last 8.

SEC event timeline

26 events

Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+16,000 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) added2026-02-17
+121,320 shares · 2025Q4
Position
D.E. Shaw & Co. added2026-02-17
+22,232 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+7,047 shares · 2025Q4
Position
Two Sigma Investments trimmed2026-02-17
−1,262 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) added2026-02-17
+11,376 shares · 2025Q4
Position
Steve Cohen (Point72) added2026-02-17
+5,600 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+1,185,829 shares · 2025Q4
Position
Wellington Management trimmed2026-02-17
−36,367 shares · 2025Q4
Position
Jeremy Grantham (GMO) added2026-02-17
+70,156 shares · 2025Q4
Position
Ray Dalio (Bridgewater Associates) trimmed2026-02-13
−34,373 shares · 2025Q4
Position
Renaissance Technologies trimmed2026-02-12
−67,140 shares · 2025Q4
Position
Norges Bank (Norway SWF) opened position2026-02-10
+2,457,794 shares · 2025Q4
Position
Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09
−2,047 shares · 2025Q4
Position
D.E. Shaw & Co. added2025-11-14
+7,303 shares · 2025Q3
Position
AQR Capital Management added2025-11-14
+7,209 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+25,219 shares · 2025Q3
Position
Two Sigma Investments trimmed2025-11-14
−16 shares · 2025Q3
Position
T. Rowe Price trimmed2025-11-14
−262,407 shares · 2025Q3
Position
Wellington Management added2025-11-14
+2,426 shares · 2025Q3
Position
Ray Dalio (Bridgewater Associates) added2025-11-13
+87,719 shares · 2025Q3
Position
Renaissance Technologies opened position2025-11-13
+82,809 shares · 2025Q3
Position
Jeremy Grantham (GMO) trimmed2025-11-13
−126,452 shares · 2025Q3
Position
Norges Bank (Norway SWF) exited2025-11-13
−1,784,622 shares · 2025Q3
Position
Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12
−1,673 shares · 2025Q3
Position
Norges Bank (Norway SWF) added2025-11-12
+131,173 shares · 2024Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for KLAC →

Follow-the-investor returns

If you'd copied each holder of KLAC…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Wellington Management	2016Q3	$256.15	+599.4%	$784.7M
AQR Capital Management	2016Q1	$493.26	+263.2%	$262.2M
Jeremy Grantham (GMO)	2016Q1	$554.01	+223.4%	$911.4M
Renaissance Technologies	2016Q1	$560.77	+219.5%	$28.1M
Ken Fisher (Fisher Asset Mgmt)	2019Q3	$735.60	+143.5%	$52.1M
T. Rowe Price	2016Q1	$752.57	+138.0%	$4.85B
Ray Dalio (Bridgewater Associates)	2019Q4	$995.92	+79.9%	$140.4M
D.E. Shaw & Co.	2016Q1	$1073.99	+66.8%	$41.2M
D.E. Shaw & Co.	2016Q1	$1073.99	+66.8%	$41.2M
Two Sigma Investments	2016Q1	$1077.52	+66.3%	$3.6M
Two Sigma Investments	2016Q1	$1077.52	+66.3%	$3.6M
Two Sigma Investments	2016Q1	$1077.52	+66.3%	$3.6M
Ken Griffin (Citadel Advisors)	2016Q2	$1142.62	+56.8%	$251.9M
Ken Griffin (Citadel Advisors)	2016Q2	$1142.62	+56.8%	$251.9M
Ken Griffin (Citadel Advisors)	2016Q2	$1142.62	+56.8%	$251.9M
Steve Cohen (Point72)	2016Q4	$1158.52	+54.6%	$10.4M
Steve Cohen (Point72)	2016Q4	$1158.52	+54.6%	$10.4M
Izzy Englander (Millennium Mgmt)	2016Q1	$1187.99	+50.8%	$172.2M
Izzy Englander (Millennium Mgmt)	2016Q1	$1187.99	+50.8%	$172.2M
Izzy Englander (Millennium Mgmt)	2016Q1	$1187.99	+50.8%	$172.2M
Paul Tudor Jones (Tudor Investment)	2016Q1	$1198.22	+49.5%	$28.7M
Paul Tudor Jones (Tudor Investment)	2016Q1	$1198.22	+49.5%	$28.7M
Norges Bank (Norway SWF)	2016Q1	$16940.49	-89.4%	$4.40B

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions2

Norges Bank (Norway SWF)
+2,457,794
$2.99B
Paul Tudor Jones (Tudor Investment)
+16,000
$19.4M

Added to7

Ken Griffin (Citadel Advisors)
+121,320
$147.4M
Jeremy Grantham (GMO)
+70,156
$85.2M
D.E. Shaw & Co.
+22,232
$27.0M
Izzy Englander (Millennium Mgmt)
+11,376
$13.8M
AQR Capital Management
+7,047
$8.6M
Steve Cohen (Point72)
+5,600
$6.8M
T. Rowe Price
+1,185,829
$1.4M

Trimmed5

Renaissance Technologies
−67,140
$81.6M
Wellington Management
−36,367
$44.2M
Ray Dalio (Bridgewater Associates)
−34,373
$41.8M
Ken Fisher (Fisher Asset Mgmt)
−2,047
$2.5M
Two Sigma Investments
−1,262
$1.5M

Exited0

—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	22	23,440,339	$537.13B	—
2022Q2	20	23,635,114	$501.29B	-2
2022Q3	20	21,582,721	$6.53B	—
2022Q4	19	22,024,635	$8.30B	-1
2023Q1	22	19,968,438	$7.97B	+3
2023Q2	21	20,236,911	$9.82B	-1
2023Q3	22	17,464,634	$8.01B	+1
2023Q4	21	17,769,602	$10.33B	-1
2024Q1	20	20,666,979	$14.44B	-1
2024Q2	21	21,051,077	$17.36B	+1
2024Q3	20	8,728,088	$6.76B	-1
2024Q4	19	5,953,854	$3.75B	-1
2025Q1	17	4,831,310	$3.28B	-2
2025Q2	17	5,147,850	$4.61B	—
2025Q3	17	3,305,213	$3.56B	—
2025Q4	23	7,241,078	$8.80B	+6

Congress members trading this stock

Date	Member	Type	Amount range	Filing
2025-09-23	Valerie Hoyle	Sell	$1K – $15K	PDF ↗
2025-07-28	Valerie Hoyle	Buy	$1K – $15K	PDF ↗
2025-04-29	Valerie Hoyle	Sell	$1K – $15K	PDF ↗
2025-01-24	William R. Keating	Buy	$1K – $15K	PDF ↗
2025-01-13	Gilbert Cisneros	Sell (P)	$1K – $15K	PDF ↗
2024-10-29	Valerie Hoyle	Buy	$1K – $15K	PDF ↗

Who owns KLAC

23 super-investors · 2025Q4

Tracked stake

7.24M

Combined value

$8.80B

% of shares outstanding

—

shares-out unknown

Quarter action mix

New3Added13Trim7

#	Manager	Shares	Value	% of book	Last action
1	T. Rowe Price	2.70M	$3.29B	0.4%	Added+1.19M
2	Norges Bank Norway SWF	2.46M	$2.99B	0.3%	New+2.46M
3	Jeremy Grantham GMO	508.8K	$618M	1.6%	Added+70.2K
4	Wellington Management	438.0K	$532M	0.1%	Trim−36.4K
5	Ken Griffin Citadel Advisors	267.7K	$325M	0.0%	Added+121.3K
6	Ken Griffin Citadel Advisors	161.6K	$196M	0.0%	Added+121.3K
7	AQR Capital Management	146.4K	$178M	0.1%	Added+7.0K
8	Ken Griffin Citadel Advisors	140.6K	$171M	0.0%	Added+121.3K
9	Izzy Englander Millennium Mgmt	96.1K	$117M	0.0%	Added+11.4K
10	Ray Dalio Bridgewater Associates	78.4K	$95M	0.3%	Trim−34.4K
11	Izzy Englander Millennium Mgmt	70.6K	$86M	0.0%	Added+11.4K
12	D.E. Shaw & Co.	39.5K	$48M	0.0%	Added+22.2K
13	Ken Fisher Fisher Asset Mgmt	29.1K	$35M	0.0%	Trim−2.0K
14	Izzy Englander Millennium Mgmt	27.8K	$34M	0.0%	Added+11.4K
15	D.E. Shaw & Co.	23.0K	$28M	0.0%	Added+22.2K
16	Paul Tudor Jones Tudor Investment	16.0K	$19M	0.0%	New+16.0K
17	Renaissance Technologies	15.7K	$19M	0.0%	Trim−67.1K
18	Steve Cohen Point72	5.8K	$7M	0.0%	Added+5.6K
19	Two Sigma Investments	5.2K	$6M	0.0%	Trim−1.3K
20	Steve Cohen Point72	3.1K	$4M	0.0%	Added+5.6K
21	Two Sigma Investments	2.0K	$2M	0.0%	Trim−1.3K
22	Two Sigma Investments	1.6K	$2M	0.0%	Trim−1.3K
23	Paul Tudor Jones Tudor Investment	1.4K	$2M	0.0%	New+16.0K

Recent moves

20 transactions

ADDIzzy Englander (Millennium Mgmt)
+11,376 · 2025Q4
ADDSteve Cohen (Point72)
+5,600 · 2025Q4
ADDT. Rowe Price
+1,185,829 · 2025Q4
ADDJeremy Grantham (GMO)
+70,156 · 2025Q4
ADDD.E. Shaw & Co.
+22,232 · 2025Q4
ADDAQR Capital Management
+7,047 · 2025Q4
TRIMWellington Management
−36,367 · 2025Q4
TRIMTwo Sigma Investments
−1,262 · 2025Q4
ADDKen Griffin (Citadel Advisors)
+121,320 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+16,000 · 2025Q4
TRIMRay Dalio (Bridgewater Associates)
−34,373 · 2025Q4
TRIMRenaissance Technologies
−67,140 · 2025Q4
NEWNorges Bank (Norway SWF)
+2,457,794 · 2025Q4
TRIMKen Fisher (Fisher Asset Mgmt)
−2,047 · 2025Q4
ADDIzzy Englander (Millennium Mgmt)
+25,219 · 2025Q3
TRIMTwo Sigma Investments
−16 · 2025Q3
ADDD.E. Shaw & Co.
+7,303 · 2025Q3
TRIMT. Rowe Price
−262,407 · 2025Q3
ADDWellington Management
+2,426 · 2025Q3
ADDAQR Capital Management
+7,209 · 2025Q3

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