Position in UCTT
as of Jun 30, 2026
· filed Aug 4, 2026
Position Value
$193,952,485
+$102,617,653 QoQ
Shares Held
1,360,211
-7.4% QoQ
Ownership
3.00%
of shares outstanding
% of Portfolio
0.17%
of 13F equity value
Holder Rank
#7
of 437 holders
Holding Since
Jun 2020
22 quarters on record
Voting authority
Sole 97%
Shared 0%
None 3%
Common Shares in UCTT Over Time
Shares Held
Position Value (USD)
Position in Semiconductor Equipment & Materials
Technology · as of Jun 30, 2026Boston Partners holds $2,530,530,346 across 10 Semiconductor Equipment & Materials names. UCTT ranks #2 (7.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AMAT |
Applied Materials Inc /De
|
2,636,446 | $1,906,150,458 | |
| 2 | UCTT |
Ultra Clean Holdings, Inc.
This page
|
1,360,211 | $193,952,485 | |
| 3 | Q |
Qnity Electronics, Inc.
|
807,514 | $131,875,109 | |
| 4 | LRCX |
Lam Research Corp
|
151,632 | $65,706,693 | |
| 5 | ONTO |
Onto Innovation Inc.
|
168,339 | $63,707,893 | |
| 6 | ACLS |
Axcelis Technologies Inc
|
303,929 | $57,579,348 | |
| 7 | KLAC |
Kla Corp
|
181,410 | $54,733,210 | |
| 8 | VECO |
Veeco Instruments Inc
|
460,965 | $34,941,145 |
All Filings in UCTT
Export CSV
22 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $193,952,485 | 1,360,211 | Shares | Defined | 2026-08-04 | |
| 2026-03-31 | $91,334,832 | 1,468,878 | Shares | Defined | 2026-05-11 | |
| 2025-03-31 | $21,860,293 | 1,021,032 | Shares | Other | 2025-05-13 | |
| 2024-12-31 | $37,215,942 | 1,035,214 | Shares | Other | 2025-02-11 | |
| 2024-09-30 | $12,637,724 | 316,497 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $19,255,628 | 392,972 | Shares | Other | 2024-08-14 | |
| 2024-03-31 | $19,992,490 | 435,187 | Shares | Defined | 2024-05-28 | |
| 2023-12-31 | $20,044,924 | 587,139 | Shares | Defined | 2024-02-07 | |
| 2023-09-30 | $17,454,652 | 588,293 | Shares | Other | 2023-11-08 | |
| 2023-06-30 | $23,394,486 | 608,281 | Shares | Other | 2023-08-10 | |
| 2023-03-31 | $20,783,261 | 626,757 | Shares | Other | 2023-05-09 | |
| 2022-12-31 | $30,083,789 | 907,505 | Shares | Other | 2023-02-08 | |
| 2022-09-30 | $21,274,159 | 826,181 | Shares | Other | 2022-11-09 | |
| 2022-06-30 | $25,293,006 | 849,614 | Shares | Other | 2022-08-10 | |
| 2022-03-31 | $34,312,413 | 809,446 | Shares | Other | 2022-05-10 | |
| 2021-12-31 | $46,587,045 | 812,187 | Shares | Other | 2022-02-04 | |
| 2021-09-30 | $35,010,552 | 821,844 | Shares | Defined | 2021-11-05 | |
| 2021-06-30 | $44,705,245 | 832,190 | Shares | Defined | 2021-08-12 | |
| 2021-03-31 | $48,751,509 | 839,964 | Shares | Other | 2021-05-10 | |
| 2020-12-31 | $26,686,670 | 856,715 | Shares | Other | 2021-02-10 | |
| 2020-09-30 | $19,437,372 | 905,749 | Shares | Other | 2020-11-13 | |
| 2020-06-30 | $21,123,835 | 933,444 | Shares | Other | 2020-08-12 | |
| No filing history on record for this holder in this stock. | ||||||