Assenagon Asset Management S.A.
Position in UCTT — Ultra Clean Holdings, Inc.
CIK 1546007
SENNINGERBERG, N4
Position in UCTT
as of Jun 30, 2026
· filed Aug 21, 2026
Position Value
$39,663,689
+$30,869,323 QoQ
Shares Held
278,166
+96.7% QoQ
Ownership
0.614%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#37
of 437 holders
Holding Since
Mar 2021
21 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, 2026Assenagon Asset Management S.A. holds $1,430,317,524 across 16 Semiconductor Equipment & Materials names. UCTT ranks #7 (2.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | KLAC |
Kla Corp
|
1,655,063 | $499,349,057 | |
| 2 | AMAT |
Applied Materials Inc /De
|
532,010 | $384,643,230 | |
| 3 | LRCX |
Lam Research Corp
|
519,230 | $224,997,935 | |
| 4 | AXTI |
Axt Inc
|
1,022,988 | $73,736,975 | |
| 5 | ONTO |
Onto Innovation Inc.
|
143,746 | $54,400,673 | |
| 6 | FORM |
Formfactor Inc
|
259,518 | $41,504,713 | |
| 7 | UCTT |
Ultra Clean Holdings, Inc.
This page
|
278,166 | $39,663,689 | |
| 8 | ENTG |
Entegris Inc
|
152,702 | $27,464,981 |
All Filings in UCTT
Export CSV
21 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $39,663,689 | 278,166 | Shares | Sole | 2026-08-21 | |
| 2026-03-31 | $8,794,366 | 141,434 | Shares | Sole | 2026-04-20 | |
| 2025-12-31 | $2,259,942 | 89,220 | Shares | Sole | 2026-01-09 | |
| 2025-09-30 | $2,431,245 | 89,220 | Shares | Sole | 2025-10-07 | |
| 2025-06-30 | $2,043,894 | 90,558 | Shares | Sole | 2025-07-11 | |
| 2025-03-31 | $3,478,739 | 162,482 | Shares | Sole | 2025-04-15 | |
| 2024-12-31 | $7,772,138 | 216,193 | Shares | Sole | 2025-01-14 | |
| 2024-09-30 | $13,380,383 | 335,096 | Shares | Sole | 2024-10-23 | |
| 2024-06-30 | $2,962,932 | 60,468 | Shares | Sole | 2024-07-18 | |
| 2024-03-31 | $2,777,899 | 60,468 | Shares | Sole | 2024-04-24 | |
| 2023-12-31 | $4,148,897 | 121,526 | Shares | Sole | 2024-01-17 | |
| 2023-09-30 | $2,873,717 | 96,856 | Shares | Sole | 2023-11-06 | |
| 2023-03-31 | $1,086,586 | 32,768 | Shares | Sole | 2023-04-18 | |
| 2022-12-31 | $1,086,259 | 32,768 | Shares | Sole | 2023-01-12 | |
| 2022-09-30 | $1,116,751 | 43,369 | Shares | Sole | 2022-10-27 | |
| 2022-06-30 | $1,292,256 | 43,408 | Shares | Sole | 2022-07-27 | |
| 2022-03-31 | $2,967,935 | 70,015 | Shares | Sole | 2022-04-25 | |
| 2021-12-31 | $4,866,651 | 84,844 | Shares | Sole | 2022-02-01 | |
| 2021-09-30 | $1,980,261 | 46,485 | Shares | Sole | 2021-10-19 | |
| 2021-06-30 | $2,881,218 | 53,634 | Shares | Sole | 2021-07-15 | |
| 2021-03-31 | $695,899 | 11,990 | Shares | Sole | 2021-04-26 | |
| No filing history on record for this holder in this stock. | ||||||