ULTRA CLEAN HLDGS INC

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UCTT·90385V107·US·Common Stock·Technology - Semiconductor Equipment & Materials-13D/G

UCTT (ULTRA CLEAN HLDGS INC) is held by 155 institutional investors as of Q1 2026. Largest holders: BlackRock, Inc. ($424.9M), VANGUARD PORTFOLIO MANAGEMENT LLC ($174.2M), VANGUARD CAPITAL MANAGEMENT LLC ($119.2M). Net institutional sentiment: Bullish.

155

Holders

(14 Elite)

$2.3B

Total Value

68% (153)

Consensus

104 buying - 49 selling

13F: Mar 31, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)64

Insider (Form 4)72

Activist (13D/13G)53

Congressional (STOCK Act)71

Holder Quality

43

★★★★★

Elite

35

★★★★

Strong

51

★★★

Solid

89

★★

Below

20

★

Weak

Held by 155 funds

14 elite

Who's Trading

ActivistVAVanguard Capital Management5.0%Jul 31, 2026

ActivistFRONTIER CAPITAL MANAGEMENT CO.,LLC3.9%May 15, 2026

InsiderCYCho Paul YoonkuSell $174KMay 8, 2026

ActivistInvesco Ltd.3.7%May 8, 2026

InsiderHEHARDING BRIAN ESell $320KMay 5, 2026

InsiderPJPalfrey Jamie J.Sell $693KMay 5, 2026

InsiderCSCook Christopher SSell $757KMay 4, 2026

InsiderCSCook Christopher SSell $92KMay 4, 2026

InsiderGLGRANGER CLARENCE LSell $932KMay 1, 2026

InsiderGLGRANGER CLARENCE LSell $853KMay 1, 2026

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Top Holders

Top Holders (155)History

AllNewIncreasedHeldDecreasedExited

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	6.8M(+1.7%)	$424.9M	0.0%	+142.48%	32
VPVANGUARD PORTFOLIO MANAGEMENT LLC	New	2.8M	$174.2M	0.0%	+46.39%	42
VAVANGUARD CAPITAL MANAGEMENT LLC	New	1.9M	$119.2M	0.0%	+46.39%	42
STATE STREET CORP	Decreased	1.8M(-0.8%)	$114.3M	0.0%	+158.60%	0
FRONTIER CAPITAL MANAGEMENT CO LLC	Decreased	1.8M(-49.1%)	$111.1M	1.1%	+183.62%	0
Invesco Ltd.	Decreased	1.7M(-51.2%)	$103.2M	0.0%	+209.50%	0
Boston Partners	New	1.5M	$91.4M	0.1%	+46.39%	41
DED. E. Shaw & Co., Inc.	Increased	1.2M(+24.3%)	$73.6M	0.0%	+158.96%	36
GEODE CAPITAL MANAGEMENT, LLC	Increased	1.1M(+4.7%)	$70.9M	0.0%	+243.22%	31
DRIEHAUS CAPITAL MANAGEMENT LLC	Increased	1.1M(+134.2%)	$66.1M	0.5%	+91.87%	57
DIMENSIONAL FUND ADVISORS LP	Decreased	1M(-33.6%)	$62.9M	0.0%	+167.36%	0
MORGAN STANLEY	Increased	911,700(+1.9%)	$56.7M	0.0%	+146.59%	30
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Increased	840,456(+2.4%)	$52.3M	0.0%	+222.12%	30
ROYCE & ASSOCIATES LP	Decreased	759,497(-30.9%)	$47.2M	0.5%	+281.58%	0
MILLENNIUM MANAGEMENT LLC	Increased	685,436(+22.4%)	$42.6M	0.0%	+172.37%	35
TWO SIGMA INVESTMENTS, LP	New	581,131	$36.1M	0.0%	+46.39%	40
GOLDMAN SACHS GROUP INC	Decreased	503,328(-9.8%)	$31.3M	0.0%	+190.89%	0
FULLER & THALER ASSET MANAGEMENT, INC.	Increased	475,073(+3417.8%)	$29.5M	0.1%	+49.07%	46
NORTHERN TRUST CORP	Decreased	458,142(-1.1%)	$28.5M	0.0%	+444.86%	0
BANK OF AMERICA CORP /DE/	Increased	454,020(+502.4%)	$28.2M	0.0%	+56.88%	46

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Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer