Position in KLAC
as of Mar 31, 2026
· filed May 11, 2026
Position Value
$358,921,581
+$9,469,191 QoQ
Shares Held
2,437,647
-15.2% QoQ
Ownership
1.87%
of shares outstanding
% of Portfolio
0.29%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 99%
Shared 0%
None 1%
Common Shares in KLAC Over Time
Shares Held
Position Value (USD)
Position in Semiconductor Equipment & Materials
Technology · as of Mar 31, 2026PRIMECAP MANAGEMENT CO/CA/ holds $2,106,043,585 across 9 Semiconductor Equipment & Materials names. KLAC ranks #4 (17.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ASML |
Asml Holding NV
|
353,076 | $466,353,373 | |
| 2 | AMAT |
Applied Materials Inc /De
|
1,174,126 | $401,304,525 | |
| 3 | ENTG |
Entegris Inc
|
3,142,833 | $368,465,740 | |
| 4 | KLAC |
Kla Corp
This page
|
2,437,647 | $358,921,581 | |
| 5 | FORM |
Formfactor Inc
|
1,788,644 | $173,480,581 | |
| 6 | TER |
Teradyne, Inc
|
550,610 | $163,233,840 | |
| 7 | Q |
Qnity Electronics, Inc.
|
970,514 | $111,977,905 | |
| 8 | ACLS |
Axcelis Technologies Inc
|
658,652 | $61,307,328 |
All Filings in KLAC
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $358,921,581 | 2,437,647 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $349,452,390 | 2,875,962 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $381,304,730 | 3,535,182 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $401,316,331 | 4,480,277 | Shares | Sole | 2025-08-11 | |
| 2025-03-31 | $331,539,071 | 4,877,009 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $326,690,061 | 5,184,569 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $410,554,932 | 5,301,519 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $454,774,073 | 5,515,689 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $404,113,593 | 5,784,869 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $342,403,662 | 5,890,309 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $275,567,239 | 6,008,094 | Shares | Sole | 2023-11-13 | |
| 2023-06-30 | $295,275,277 | 6,087,899 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $253,468,519 | 6,349,889 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $255,322,981 | 6,771,954 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $215,193,958 | 7,110,794 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $229,142,643 | 7,181,354 | Shares | Sole | 2022-08-11 | |
| 2022-03-31 | $269,504,683 | 7,362,309 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $333,944,887 | 7,764,174 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $267,860,019 | 8,007,534 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $262,804,107 | 8,105,984 | Shares | Sole | 2021-08-10 | |
| 2021-03-31 | $278,831,465 | 8,439,209 | Shares | Sole | 2021-05-14 | |
| 2020-12-31 | $242,451,583 | 9,364,319 | Shares | Sole | 2021-02-08 | |
| 2020-09-30 | $186,503,597 | 9,626,489 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $194,582,860 | 10,005,289 | Shares | Sole | 2020-08-13 | |
| 2020-03-31 | $148,591,857 | 10,337,544 | Shares | Sole | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||