ULTRA CLEAN HLDGS INC

Ticker: UCTT CUSIP: 90385V107 Class: Common Stock

Note: Option positions (PUT/CALL) are excluded.

InstitutionSharesValue ($000)
BlackRock, Inc.6,719,452$170,204
VANGUARD GROUP INC4,990,724$126,415
FRONTIER CAPITAL MANAGEMENT CO LLC3,509,839$88,904
Invesco Ltd.3,399,834$86,118
STATE STREET CORP1,852,482$46,923
DIMENSIONAL FUND ADVISORS LP1,524,857$38,625
SHAPIRO CAPITAL MANAGEMENT LLC1,278,492$32,384
ROYCE & ASSOCIATES LP1,098,693$27,830
GEODE CAPITAL MANAGEMENT, LLC1,089,429$27,600
D. E. Shaw & Co., Inc.952,154$24,118
Divisar Capital Management LLC949,328$24,046
MORGAN STANLEY894,423$22,656
CHARLES SCHWAB INVESTMENT MANAGEMENT INC821,088$20,798
Bank of New York Mellon Corp634,972$16,084
OBERWEIS ASSET MANAGEMENT INC/628,500$15,920
PARADIGM CAPITAL MANAGEMENT INC/NY608,200$15,406
MILLENNIUM MANAGEMENT LLC559,955$14,184
GOLDMAN SACHS GROUP INC558,176$14,139
Goodman Financial Corp558,019$14,135
JPMORGAN CHASE & CO512,490$12,981
NORTHERN TRUST CORP463,260$11,734
PINNACLE ASSOCIATES LTD462,126$11,706
DRIEHAUS CAPITAL MANAGEMENT LLC453,630$11,490
BNP PARIBAS ARBITRAGE, SA426,561$10,805
First Eagle Investment Management, LLC410,569$10,400
Dana Investment Advisors, Inc.389,516$9,866
AMERIPRISE FINANCIAL INC265,532$6,726
UBS Group AG232,445$5,888
AQR CAPITAL MANAGEMENT LLC218,663$5,539
PRINCIPAL FINANCIAL GROUP INC216,312$5,479
Qube Research & Technologies Ltd184,783$4,681
COMERICA BANK175,307$4,441
VOLORIDGE INVESTMENT MANAGEMENT, LLC165,565$4,194
Public Sector Pension Investment Board157,177$3,981
AWM Investment Company, Inc.140,440$3,557
4D Advisors, LLC135,000$3,420
Man Group plc132,741$3,362
RHUMBLINE ADVISERS126,457$3,203
SG Americas Securities, LLC126,043$3
CANADA PENSION PLAN INVESTMENT BOARD123,800$3,136
AMERICAN CENTURY COMPANIES INC119,236$3,020
Legal & General Group Plc114,703$2,905
GRACE & WHITE INC /NY114,450$2,899
MARSHALL WACE, LLP113,476$2,874
WEDGE CAPITAL MANAGEMENT L L P/NC111,441$2,823
RENAISSANCE TECHNOLOGIES LLC106,400$2,695
JANE STREET GROUP, LLC101,554$2,572
DEUTSCHE BANK AG\91,595$2,320
Nuveen, LLC90,189$2,284
UBS ASSET MANAGEMENT AMERICAS INC89,437$2,265
Swiss National Bank89,400$2,265
Assenagon Asset Management S.A.89,220$2,260
WINTON GROUP Ltd87,510$2,217
Pathstone Holdings, LLC83,981$2,127
WELLS FARGO & COMPANY/MN81,401$2,062
Bridge City Capital, LLC81,117$2,055
HARBOR CAPITAL ADVISORS, INC.77,553$2
PRUDENTIAL FINANCIAL INC75,518$1,913
BANK OF AMERICA CORP /DE/75,372$1,909
Penn Capital Management Company, LLC69,813$1,768
BARCLAYS PLC69,655$1,764
CITIGROUP INC68,954$1,747
Engineers Gate Manager LP65,519$1,660
STATE OF WISCONSIN INVESTMENT BOARD65,419$1,657
Russell Investments Group, Ltd.64,681$1,638
RAYMOND JAMES FINANCIAL INC63,006$1,596
ALLIANCEBERNSTEIN L.P.61,235$1,551
NEEDHAM INVESTMENT MANAGEMENT LLC60,000$1,520
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND60,000$1,520
Optimize Financial Inc57,359$1,453
OPPENHEIMER & CO INC53,969$1,367
CastleKnight Management LP47,100$1,193
MARTINGALE ASSET MANAGEMENT L P46,555$1,179
PRICE T ROWE ASSOCIATES INC /MD/43,089$1
Teton Advisors, LLC43,000$1,089
ENVESTNET ASSET MANAGEMENT INC42,881$1,086
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM41,559$1,053
Trexquant Investment LP37,932$961
GREAT WEST LIFE ASSURANCE CO /CAN/37,007$1
NEW YORK STATE COMMON RETIREMENT FUND36,225$918
Pacific Ridge Capital Partners, LLC36,140$915
VICTORY CAPITAL MANAGEMENT INC35,200$892
ExodusPoint Capital Management, LP33,930$859
Janney Montgomery Scott LLC32,221$1
CITADEL ADVISORS LLC31,319$793
Thrivent Financial for Lutherans31,187$1
NEW YORK STATE TEACHERS RETIREMENT SYSTEM30,069$1
ROMANO BROTHERS AND COMPANY29,250$741
Creative Planning29,134$738
HRT FINANCIAL LP26,837$1
LPL Financial LLC26,798$679
Headlands Technologies LLC26,429$669
MetLife Investment Management, LLC26,200$664
GABELLI FUNDS LLC25,847$655
State of Alaska, Department of Revenue25,093$1
FRANKLIN RESOURCES INC24,910$631
JANUS HENDERSON GROUP PLC23,673$600
Quantbot Technologies LP23,658$599
State of Tennessee, Department of Treasury23,557$1,029
Quantinno Capital Management LP22,956$581
134 other institutions837,525$19,874
Total (234 institutions)42,477,478$1,064,194