Ticker · CUSIP 482480100
Holders (tracked)
23
Combined shares
7,241,078
Combined value
$8.80B
Last close
$1734.85
Quarter
2025Q4
Tracked holders · last 8 quarters
+6 vs previous quarter over the last 8.
Price is +42.8% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
26 events
- +16,000 shares · 2025Q4Position
- Ken Griffin (Citadel Advisors) added2026-02-17+121,320 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+22,232 shares · 2025Q4Position
- AQR Capital Management added2026-02-17+7,047 shares · 2025Q4Position
- Two Sigma Investments trimmed2026-02-17−1,262 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+11,376 shares · 2025Q4Position
- Steve Cohen (Point72) added2026-02-17+5,600 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+1,185,829 shares · 2025Q4Position
- Wellington Management trimmed2026-02-17−36,367 shares · 2025Q4Position
- Jeremy Grantham (GMO) added2026-02-17+70,156 shares · 2025Q4Position
- −34,373 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−67,140 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+2,457,794 shares · 2025Q4Position
- Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09−2,047 shares · 2025Q4Position
- D.E. Shaw & Co. added2025-11-14+7,303 shares · 2025Q3Position
- AQR Capital Management added2025-11-14+7,209 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+25,219 shares · 2025Q3Position
- Two Sigma Investments trimmed2025-11-14−16 shares · 2025Q3Position
- T. Rowe Price trimmed2025-11-14−262,407 shares · 2025Q3Position
- Wellington Management added2025-11-14+2,426 shares · 2025Q3Position
- Ray Dalio (Bridgewater Associates) added2025-11-13+87,719 shares · 2025Q3Position
- Renaissance Technologies opened position2025-11-13+82,809 shares · 2025Q3Position
- Jeremy Grantham (GMO) trimmed2025-11-13−126,452 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-13−1,784,622 shares · 2025Q3Position
- Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12−1,673 shares · 2025Q3Position
- Norges Bank (Norway SWF) added2025-11-12+131,173 shares · 2024Q3Position
Insider activity
No insider transactions in the last 30 days.
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 | +577.3% | $759.9M |
| AQR Capital Management | 2016Q1 | $493.26 | +251.7% | $253.9M |
| Jeremy Grantham (GMO) | 2016Q1 | $554.01 | +213.1% | $882.6M |
| Renaissance Technologies | 2016Q1 | $560.77 | +209.4% | $27.2M |
| Ken Fisher (Fisher Asset Mgmt) | 2019Q3 | $735.60 | +135.8% | $50.5M |
| T. Rowe Price | 2016Q1 | $752.57 | +130.5% | $4.69B |
| Ray Dalio (Bridgewater Associates) | 2019Q4 | $995.92 | +74.2% | $136.0M |
| D.E. Shaw & Co. | 2016Q1 | $1073.99 | +61.5% | $39.9M |
| D.E. Shaw & Co. | 2016Q1 | $1073.99 | +61.5% | $39.9M |
| Two Sigma Investments | 2016Q1 | $1077.52 | +61.0% | $3.5M |
| Two Sigma Investments | 2016Q1 | $1077.52 | +61.0% | $3.5M |
| Two Sigma Investments | 2016Q1 | $1077.52 | +61.0% | $3.5M |
| Ken Griffin (Citadel Advisors) | 2016Q2 | $1142.62 | +51.8% | $243.9M |
| Ken Griffin (Citadel Advisors) | 2016Q2 | $1142.62 | +51.8% | $243.9M |
| Ken Griffin (Citadel Advisors) | 2016Q2 | $1142.62 | +51.8% | $243.9M |
| Steve Cohen (Point72) | 2016Q4 | $1158.52 | +49.7% | $10.1M |
| Steve Cohen (Point72) | 2016Q4 | $1158.52 | +49.7% | $10.1M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $1187.99 | +46.0% | $166.7M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $1187.99 | +46.0% | $166.7M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $1187.99 | +46.0% | $166.7M |
| Paul Tudor Jones (Tudor Investment) | 2016Q1 | $1198.22 | +44.8% | $27.8M |
| Paul Tudor Jones (Tudor Investment) | 2016Q1 | $1198.22 | +44.8% | $27.8M |
| Norges Bank (Norway SWF) | 2016Q1 | $16940.49 | -89.8% | $4.26B |
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 | Combined value |
|---|---|---|
| 2022Q1 | 22 | $537.13B |
| 2022Q2 | 20 | $501.29B |
| 2022Q3 | 20 | $6.53B |
| 2022Q4 | 19 | $8.30B |
| 2023Q1 | 22 | $7.97B |
| 2023Q2 | 21 | $9.82B |
| 2023Q3 | 22 | $8.01B |
| 2023Q4 | 21 | $10.33B |
| 2024Q1 | 20 | $14.44B |
| 2024Q2 | 21 | $17.36B |
| 2024Q3 | 20 | $6.76B |
| 2024Q4 | 19 | $3.75B |
| 2025Q1 | 17 | $3.28B |
| 2025Q2 | 17 | $4.61B |
| 2025Q3 | 17 | $3.56B |
| 2025Q4 | 23 | $8.80B |
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
shares
Combined value
$8.80B
% of shares outstanding
—
shares-out unknown
Quarter action mix
New3Added13Trim7
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | T. Rowe Price | 2.70M | $3.29B |
| 2 | Norges Bank Norway SWF | 2.46M | $2.99B |
| 3 | Jeremy Grantham GMO | 508.8K | $618M |
| 4 | Wellington Management | 438.0K | $532M |
| 5 | Ken Griffin Citadel Advisors | 267.7K | $325M |
| 6 | Ken Griffin Citadel Advisors | 161.6K | $196M |
| 7 | AQR Capital Management | 146.4K | $178M |
| 8 | Ken Griffin Citadel Advisors | 140.6K | $171M |
| 9 | Izzy Englander Millennium Mgmt | 96.1K | $117M |
| 10 | Ray Dalio Bridgewater Associates | 78.4K | $95M |
| 11 | Izzy Englander Millennium Mgmt | 70.6K | $86M |
| 12 | D.E. Shaw & Co. | 39.5K | $48M |
| 13 | Ken Fisher Fisher Asset Mgmt | 29.1K | $35M |
| 14 | Izzy Englander Millennium Mgmt | 27.8K | $34M |
| 15 | D.E. Shaw & Co. | 23.0K | $28M |
| 16 | Paul Tudor Jones Tudor Investment | 16.0K | $19M |
| 17 | Renaissance Technologies | 15.7K | $19M |
| 18 | Steve Cohen Point72 | 5.8K | $7M |
| 19 | Two Sigma Investments | 5.2K | $6M |
| 20 | Steve Cohen Point72 | 3.1K | $4M |
| 21 | Two Sigma Investments | 2.0K | $2M |
| 22 | Two Sigma Investments | 1.6K | $2M |
| 23 | Paul Tudor Jones Tudor Investment | 1.4K | $2M |
Recent moves
20 transactions
- +11,376 · 2025Q4
- +5,600 · 2025Q4
- +1,185,829 · 2025Q4
- +70,156 · 2025Q4
- +22,232 · 2025Q4
- +7,047 · 2025Q4
- −36,367 · 2025Q4
- −1,262 · 2025Q4
- +121,320 · 2025Q4
- +16,000 · 2025Q4
- −34,373 · 2025Q4
- −67,140 · 2025Q4
- +2,457,794 · 2025Q4
- −2,047 · 2025Q4
- +25,219 · 2025Q3
- −16 · 2025Q3
- +7,303 · 2025Q3
- TRIMT. Rowe Price−262,407 · 2025Q3
- +2,426 · 2025Q3
- +7,209 · 2025Q3
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