UCTT

Ultra Clean Holdings Inc
Information TechnologyUSCUSIP 90385V107◍ Confluence graph
Tracked 13F Holders
355
-116 QoQ
13F Value (tracked)
$3.1B
Insider Net · 180d
-$11.3M
0↑ 8↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)38 adding · 18 trimming
Insider net (180d)-$11.3M

Who owns UCTT?

355 tracked 13F filers

355 tracked 13F filers disclose a position in UCTT as of the latest SEC 13F filings, a combined $3.1B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
3 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$424.9M
6.8M
+1.7%
Added · +113K sh
Q1 2026
2VANGUARD PORTFOLIO MANAGEMENT LLC
$174.2M
2.8M
First observed position
No prior filed position
Q1 2026
3VANGUARD CAPITAL MANAGEMENT LLC
$119.2M
1.9M
First observed position
No prior filed position
Q1 2026
4STATE STREET CORP
$257.0M
1.8M
−1.9%
Reduced · −36K sh
Q2 2026
5Boston Partners
$91.4M
1.5M
New
+1.5M sh
Q1 2026
6GEODE CAPITAL MANAGEMENT, LLC
$187.9M
1.3M
+16%
Added · +177K sh
Q2 2026
7D. E. Shaw & Co., Inc.
$73.6M
1.2M
+24%
Added · +231K sh
Q1 2026
8DIMENSIONAL FUND ADVISORS LP
$62.9M
1.0M
−34%
Reduced · −513K sh
Q1 2026
9MORGAN STANLEY
$56.7M
912K
+1.9%
Added · +17K sh
Q1 2026
10CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$52.3M
840K
+2.4%
Added · +19K sh
Q1 2026
11MILLENNIUM MANAGEMENT LLC
$42.6M
685K
+22%
Added · +125K sh
Q1 2026
12FRONTIER CAPITAL MANAGEMENT CO LLC
$95.2M
668K
−63%
Reduced · −1.1M sh
Q2 2026
13OBERWEIS ASSET MANAGEMENT INC/
$39.8M
640K
+1.9%
Added · +12K sh
Q1 2026
14PARADIGM CAPITAL MANAGEMENT INC/NY
$86.7M
608K
Held
Q2 2026
15TWO SIGMA INVESTMENTS, LP
$36.1M
581K
New
+581K sh
Q1 2026
16GOLDMAN SACHS GROUP INC
$31.3M
503K
−9.8%
Reduced · −55K sh
Q1 2026
17FULLER & THALER ASSET MANAGEMENT, INC.
$70.2M
493K
+3.7%
Added · +18K sh
Q2 2026
18NORTHERN TRUST CORP
$28.5M
458K
−1.1%
Reduced · −5K sh
Q1 2026
19BANK OF AMERICA CORP /DE/
$28.2M
454K
+502%
Added · +379K sh
Q1 2026
20Bank of New York Mellon Corp
$27.6M
444K
−30%
Reduced · −191K sh
Q1 2026
21Divisar Capital Management LLC
$26.1M
420K
−56%
Reduced · −529K sh
Q1 2026
22PINNACLE ASSOCIATES LTD
$57.0M
400K
−9.4%
Reduced · −42K sh
Q2 2026
23Russell Investments Group, Ltd.
$22.4M
360K
+456%
Added · +295K sh
Q1 2026
24UBS Group AG
$21.8M
351K
+51%
Added · +119K sh
Q1 2026
25ION Fund Management Ltd
$21.8M
350K
New
+350K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is UCTT being bought or sold by institutions?

Last quarter, 20 funds opened a new position in UCTT and 18 added to an existing one, while 18 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
20
funds
Added
18
funds
Reduced
18
funds
Exited
0
funds

Funds that own UCTT also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT195 funds$212.9B
AMAZON.COM INCAMZN192 funds$159.3B
NVIDIA CORPNVDA191 funds$312.4B
META PLATFORMS INC-CLASS AMETA188 funds$91.5B
APPLE INCAAPL187 funds$229.4B
ALPHABET INC-CL AGOOGL183 funds$127.9B
BROADCOM INCAVGO181 funds$125.3B
ALPHABET INC-CL CGOOG181 funds$105.9B
JPMORGAN CHASE & COJPM178 funds$49.8B
VISA INC-CLASS A SHARESV177 funds$49.1B
MICRON TECHNOLOGY INCMU177 funds$32.9B
APPLIED MATERIALS INCAMAT176 funds$25.5B

Ranked by how many of UCTT's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$11.3M
8 insiders
Net
-$11.3M
85 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Jul 2, 2026HARDING BRIAN EChief Accounting OfficerSell (S)440$56K
Jul 2, 2026HARDING BRIAN EChief Accounting OfficerSell (S)2K$282K
Jul 2, 2026HARDING BRIAN EChief Accounting OfficerSell (S)1K$157K
Jun 4, 2026HARDING BRIAN EChief Accounting OfficerSell (S)196$17K
Jun 4, 2026HARDING BRIAN EChief Accounting OfficerSell (S)1K$103K
Jun 4, 2026HARDING BRIAN EChief Accounting OfficerSell (S)2K$172K
Jun 4, 2026HARDING BRIAN EChief Accounting OfficerSell (S)1K$126K
Jun 4, 2026HARDING BRIAN EChief Accounting OfficerSell (S)2K$170K
Jun 4, 2026HARDING BRIAN EChief Accounting OfficerSell (S)636$58K
Jun 4, 2026HARDING BRIAN EChief Accounting OfficerSell (S)488$43K
Jun 4, 2026HARDING BRIAN EChief Accounting OfficerSell (S)1K$106K
Jun 4, 2026HARDING BRIAN EChief Accounting OfficerSell (S)886$79K

Institutional ownership over time

162 funds-17 since Q3 2024
0139278Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $952.2M · 1 values withheld

Recent filings

15 shown

Keep exploring

Connected entities for UCTT

Browse more

Build

Ask your agent what changed in UCTT

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/UCTT/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for UCTT.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for UCTT. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.