Position in UCTT
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$92,295,084
+$52,470,287 QoQ
Shares Held
647,276
+1.1% QoQ
Ownership
1.43%
of shares outstanding
% of Portfolio
1.92%
of 13F equity value
Holder Rank
#15
of 437 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, 2026OBERWEIS ASSET MANAGEMENT INC/ holds $244,009,282 across 6 Semiconductor Equipment & Materials names. UCTT ranks #1 (37.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | UCTT |
Ultra Clean Holdings, Inc.
This page
|
647,276 | $92,295,084 | |
| 2 | NVMI |
Nova Ltd.
|
108,675 | $59,004,004 | |
| 3 | CAMT |
Camtek Ltd
|
253,380 | $41,331,345 | |
| 4 | AMBA |
Ambarella Inc
|
342,254 | $29,365,393 | |
| 5 | FORM |
Formfactor Inc
|
127,330 | $20,363,886 | |
| 6 | ACMR |
ACM Research, Inc.
|
13,000 | $1,649,570 |
All Filings in UCTT
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $92,295,084 | 647,276 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $39,824,797 | 640,476 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $15,919,905 | 628,500 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $16,712,425 | 613,300 | Shares | Sole | 2025-11-17 | |
| 2025-06-30 | $13,842,181 | 613,300 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $13,130,753 | 613,300 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $22,048,135 | 613,300 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $17,573,193 | 440,100 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $15,660,400 | 319,600 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $14,682,424 | 319,600 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $8,435,994 | 247,100 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $6,471,027 | 218,100 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $6,572,814 | 170,900 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $4,400,332 | 132,700 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $2,250,885 | 67,900 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $2,385,480 | 92,640 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $3,308,637 | 111,140 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $6,788,334 | 160,140 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $8,123,896 | 141,630 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $3,811,848 | 89,480 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $4,651,077 | 86,580 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $4,655,388 | 80,210 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $1,152,550 | 37,000 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $839,086 | 39,100 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $1,301,225 | 57,500 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $776,940 | 56,300 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||