CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
PensionPosition in UCTT — Ultra Clean Holdings, Inc.
CIK 1081019
WEST SACRAMENTO, CA
Position in UCTT
as of Jun 30, 2026
· filed Aug 24, 2026
Position Value
$7,313,726
+$4,102,565 QoQ
Shares Held
51,292
-0.7% QoQ
Ownership
0.113%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#90
of 438 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in UCTT Over Time
Shares Held
Position Value (USD)
Position in Semiconductor Equipment & Materials
Technology · as of Jun 30, 2026CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $2,608,639,777 across 24 Semiconductor Equipment & Materials names. UCTT ranks #12 (0.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AMAT |
Applied Materials Inc /De
|
1,203,586 | $870,192,678 | |
| 2 | LRCX |
Lam Research Corp
|
1,895,716 | $821,470,614 | |
| 3 | KLAC |
Kla Corp
|
1,985,721 | $599,111,882 | |
| 4 | TER |
Teradyne, Inc
|
238,919 | $115,598,568 | |
| 5 | Q |
Qnity Electronics, Inc.
|
314,249 | $51,320,004 | |
| 6 | ENTG |
Entegris Inc
|
226,491 | $40,736,671 | |
| 7 | ONTO |
Onto Innovation Inc.
|
57,731 | $21,848,296 | |
| 8 | FORM |
Formfactor Inc
|
90,452 | $14,465,988 |
All Filings in UCTT
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $7,313,726 | 51,292 | Shares | Sole | 2026-08-24 | |
| 2026-03-31 | $3,211,161 | 51,643 | Shares | Sole | 2026-05-18 | |
| 2025-12-31 | $1,052,689 | 41,559 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $1,133,354 | 41,591 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $875,919 | 38,809 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $900,204 | 42,046 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $1,511,553 | 42,046 | Shares | Sole | 2025-03-18 | |
| 2024-09-30 | $1,694,669 | 42,441 | Shares | Sole | 2025-04-04 | |
| 2024-06-30 | $2,133,166 | 43,534 | Shares | Sole | 2025-04-08 | |
| 2024-03-31 | $2,066,794 | 44,989 | Shares | Sole | 2024-05-16 | |
| 2023-12-31 | $1,628,000 | 47,686 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $1,463,116 | 49,313 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $2,085,070 | 54,214 | Shares | Sole | 2023-08-21 | |
| 2023-03-31 | $1,882,592 | 56,773 | Shares | Sole | 2023-05-09 | |
| 2022-12-31 | $1,908,114 | 57,560 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $1,458,583 | 56,644 | Shares | Sole | 2022-11-21 | |
| 2022-06-30 | $1,726,034 | 57,979 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $2,426,954 | 57,253 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $3,551,673 | 61,919 | Shares | Sole | 2022-02-15 | |
| 2021-09-30 | $2,548,843 | 59,832 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $3,219,815 | 59,937 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $3,511,826 | 60,507 | Shares | Sole | 2021-05-18 | |
| 2020-12-31 | $1,891,054 | 60,708 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $1,302,793 | 60,708 | Shares | Sole | 2020-11-17 | |
| 2020-06-30 | $1,351,757 | 59,733 | Shares | Sole | 2020-08-17 | |
| 2020-03-31 | $823,832 | 59,698 | Shares | Sole | 2020-05-13 | |
| No filing history on record for this holder in this stock. | ||||||