Stocks › UCTT
Ultra Clean Holdings, Inc.
UCTT·Nasdaq·
United States·USD
United States·USD$73.24
-0.78 (-1.05%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
UCTT
Ultra Clean Holdings, Inc. · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
UCTTS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of UCTT by members of U.S. Congress · 50 on record · 13 in the last 12 months
Whale Activity
Position changes in UCTT reported for 2026-06-30 by 14 tracked institutional filers
- Increased2
- New2
- Held1
- Decreased5
- Closed0
- No prior filing4
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 6.9M | $986.7M | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.8M | $393.2M | decreased |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.9M | $272.2M | decreased |
| ROYCE & ASSOCIATES LP | 666.5K | $95.0M | — |
| D. E. Shaw & Co., Inc. | 619.8K | $88.4M | decreased |
| TWO SIGMA INVESTMENTS, LP | 609.9K | $87.0M | increased |
| MILLENNIUM MANAGEMENT LLC | 388.2K | $55.4M | decreased |
| Dana Investment Advisors, Inc. | 142.4K | $20.3M | — |
| RENAISSANCE TECHNOLOGIES LLC | 91.9K | $13.1M | new |
| CITADEL ADVISORS LLC | 82.5K | $11.8M | decreased |
| Point72 Asset Management, L.P. | 62.4K | $8.9M | new |
| Legato Capital Management LLC | 41.7K | $5.9M | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by UCTT insiders, by quarter · Form 4
Recent Insider Transactions
2,048 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| HARDING BRIAN EChief Accounting Officer | Sale | −440 | $126.92 | $56K | Jul 2, 2026 | Form 4 ↗ |
| HARDING BRIAN EChief Accounting Officer | Sale | −2,194 | $128.37 | $282K | Jul 2, 2026 | Form 4 ↗ |
| HARDING BRIAN EChief Accounting Officer | Sale | −1,203 | $130.12 | $157K | Jul 2, 2026 | Form 4 ↗ |
| HARDING BRIAN EChief Accounting Officer | Grant / award | +9,363 | $0.00 | $0 | Jun 26, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −260 | $91.75 | $24K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −1,706 | $90.99 | $155K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −852 | $89.95 | $77K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −1,429 | $89.10 | $127K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −1,429 | $88.16 | $126K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −488 | $87.07 | $42K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −171 | $91.68 | $16K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −763 | $90.86 | $69K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −446 | $89.73 | $40K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −907 | $88.75 | $80K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −392 | $87.72 | $34K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −96 | $85.54 | $8K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −91 | $91.63 | $8K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −260 | $90.76 | $24K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −157 | $89.59 | $14K | Jun 4, 2026 | Form 4 ↗ |
| Savage SheriCFO | Sale | −321 | $88.80 | $29K | Jun 4, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding UCTT · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF iShares Trust | 2.7M | $385.1M | 0.35% | Jun 30, 2026 |
| SMALLCAP World Fund Inc | 2.4M | $339.6M | 0.36% | Jun 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.4M | $192.6M | 0.01% | Jun 30, 2026 |
| iShares Russell 2000 ETF iShares Trust | 1.2M | $164.7M | 0.20% | Jun 30, 2026 |
| Invesco Small Cap Value Fund AIM Sector Funds (Invesco Sector Funds) | 1.8M | $151.6M | 1.37% | Jul 31, 2026 |
| VANGUARD INFORMATION TECHNOLOGY INDEX FUND VANGUARD WORLD FUND | 1.1M | $97.1M | 0.06% | May 31, 2026 |
| Oberweis Micro-Cap Fund OBERWEIS FUNDS | 621.3K | $88.6M | 5.49% | Jun 30, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 513.9K | $73.3M | 0.08% | Jun 30, 2026 |
| Invesco Semiconductors ETF Invesco Exchange-Traded Fund Trust | 869.6K | $72.4M | 3.05% | Jul 31, 2026 |
| iShares Russell 2000 Growth ETF iShares Trust | 415.3K | $59.2M | 0.38% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list UCTT's shares (CUSIP 90385V107), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- Invesco Ltd.SCHEDULE 13G · passive (13G) · 3.1M shares7.0%
Aug 13, 2026 · ↗ - Capital World InvestorsSCHEDULE 13G · passive (13G) · 2.6M shares5.8%
Aug 12, 2026 · ↗ - Vanguard Capital ManagementSCHEDULE 13G · passive (13G) · 2.2M shares5.0%
Jul 31, 2026 · ↗ - FRONTIER CAPITAL MANAGEMENT CO.,LLCSCHEDULE 13G/A · passive (13G) · 1.8M shares3.9%
May 15, 2026 · ↗ - Invesco Ltd.SCHEDULE 13G/A · passive (13G) · 1.7M shares3.7%
May 8, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming ultra clean as client
- SORINI STRATEGIC ADVISORSULTRA CLEAN TECHNOLOGY SYSTEMS AND SERVICE, INC. DBA UCT · 2026 Q3 · TRD—
Filing ↗
Government Contracts
Federal awards to Ultra Clean Holdings, Inc. · USAspending
No federal contract awards found for Ultra Clean Holdings, Inc..
U.S. Patents
Recent USPTO applications naming Ultra Clean Holdings, Inc.
No USPTO patent applications found for Ultra Clean Holdings, Inc..
Annual Financials
From UCTT's 10-K filings · XBRL
No annual XBRL figures on record for UCTT. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in UCTT's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 5.02Officer / director changeSep 30, 2026
EDGAR ↗ - 8-K · Items 1.01, 9.01Material agreementAug 14, 2026
EDGAR ↗ - 8-K · Items 5.02, 9.01Officer / director changeAug 6, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsAug 3, 2026
EDGAR ↗ - 8-K · Items 5.02, 9.01Officer / director changeJul 8, 2026
EDGAR ↗ - 8-K · Items 5.07Shareholder voteMay 26, 2026
EDGAR ↗
About Ultra Clean Holdings, Inc.
From SEC EDGAR company records
Industry (SIC 3674)Semiconductors & Related Devices
SectorTechnology
HeadquartersHAYWARD, CA
IncorporatedDE
SEC CIK0001275014 ↗
Former namesULTRA CLEAN HOLDINGS INC