UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM N-Q
QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED
MANAGEMENT INVESTMENT COMPANY

Investment Company Act File Number: 811-08030

Name of Fund:   Royce Micro-Cap Trust, Inc.
Fund Address:   745 Fifth Avenue
    New York, NY 10151

Name and address of agent for service:
John E. Denneen, Esq.
Royce & Associates, LLC
745 Fifth Avenue
New York, NY 10151

Registrant’s telephone number, including area code: (212) 508-4500

Date of fiscal year end: 12/31/2012

Date of reporting period: 3/31/2012



Item 1 - Schedule of Investments

SCHEDULE OF INVESTMENTS                
ROYCE MICRO-CAP TRUST                
MARCH 31, 2012 (UNAUDITED)                
      SHARES     VALUE
COMMON STOCKS – 104.0%                
                 
Consumer Discretionary – 13.3%                
Auto Components - 1.4%                

China XD Plastics 1,2

    74,700     $ 407,115  

China Zenix Auto International ADR

    50,000       179,000  

Drew Industries 2

    112,900       3,083,299  

Spartan Motors

    41,000       216,890  

Williams Controls

    39,192       429,544  
           
 
              4,315,848  
           
 
Distributors - 0.4%                

Weyco Group

    48,000       1,137,600  
           
 
Diversified Consumer Services - 0.4%                

ChinaCast Education 2

    104,700       443,928  

Lincoln Educational Services

    95,700       756,987  

Spectrum Group International 1,2,3

    6,925       14,127  
           
 
              1,215,042  
           
 
Hotels, Restaurants & Leisure - 0.3%                

Benihana

    72,800       950,040  
           
 
Household Durables - 2.8%                

Cavco Industries 2

    3,091       143,979  

Ethan Allen Interiors

    81,600       2,066,112  

Flexsteel Industries

    172,500       3,122,250  

Koss Corporation

    73,400       397,094  

Natuzzi ADR 2

    409,800       1,122,852  

Skullcandy 1,2

    54,100       856,403  

Universal Electronics 2

    39,200       783,216  
           
 
              8,491,906  
           
 
Internet & Catalog Retail - 0.7%                

Geeknet 2

    102,500       1,482,150  

NutriSystem

    21,800       244,814  

US Auto Parts Network 1,2

    140,900       508,649  
           
 
              2,235,613  
           
 
Leisure Equipment & Products - 0.4%                

Leapfrog Enterprises Cl. A 2

    109,700       917,092  

Sturm, Ruger & Co.

    6,400       314,240  
           
 
              1,231,332  
           
 
Media - 0.8%                

Global Sources 2

    92,319       568,685  

Rentrak Corporation 2

    87,000       1,974,900  
           
 
              2,543,585  
           
 
Specialty Retail - 4.2%                

America’s Car-Mart 2

    92,800       4,081,344  

Charming Shoppes 2

    587,100       3,463,890  

Le Chateau Cl. A

    73,100       96,739  

Lewis Group

    57,000       566,210  

Oriental Watch Holdings

    545,100       231,642  

Shoe Carnival 2

    23,352       752,402  

Stein Mart 2

    178,900       1,180,740  

Systemax 2

    84,000       1,416,240  

West Marine 2

    86,000       1,030,280  

Wet Seal (The) Cl. A 2

    66,479       229,353  
           
 
              13,048,840  
           
 
Textiles, Apparel & Luxury Goods - 1.9%                

China Xiniya Fashion ADR 2

    40,000       72,000  

G-III Apparel Group 2

    34,800       989,016  

J.G. Boswell Company 3

    2,490       1,867,500  

K-Swiss Cl. A 2

    72,400       296,840  

Marimekko

    25,300       455,525  

Movado Group

    77,633       1,905,890  

True Religion Apparel 2

    7,200       197,280  
           
 
              5,784,051  
           
 
Total             40,953,857  
           
 
Consumer Staples – 3.3%                
Food & Staples Retailing - 0.5%                

Arden Group Cl. A

    16,000       1,454,240  
           
 
Food Products - 2.5%                

Asian Citrus Holdings

    1,060,000       723,452  

Binggrae

    9,700       484,551  

Calavo Growers

    15,300       409,734  

Farmer Bros. 2

    41,400       450,846  

Griffin Land & Nurseries

    61,274       1,618,246  

Origin Agritech 1,2

    121,488       302,505  

Seneca Foods Cl. A 2

    51,400       1,353,876  

Seneca Foods Cl. B 2

    42,500       1,005,975  

Waterloo Investment Holdings 2,4

    806,207       116,094  

Westway Group

    220,000       1,273,800  
           
 
              7,739,079  
           
 
Personal Products - 0.3%                

Inter Parfums

    26,400       414,216  

Schiff Nutrition International Cl. A 2

    46,715       574,127  
           
 
              988,343  
           
 
Total             10,181,662  
           
 
Energy – 4.8%                
Energy Equipment & Services - 3.5%                

CE Franklin 2

    45,450       439,502  

Dawson Geophysical 2

    53,213       1,827,867  

Geodrill 2

    177,700       591,472  

Global Geophysical Services 2

    35,000       371,350  

Gulf Island Fabrication

    29,116       852,225  

Heckmann Corporation 1,2

    200,000       862,000  

Lamprell

    202,400       1,109,454  

North American Energy Partners 2

    50,000       245,000  

OYO Geospace 2

    7,130       751,003  

Pason Systems

    139,200       1,959,364  

Pioneer Drilling 2

    57,500       506,000  

Tesco Corporation 2

    50,000       709,500  

Willbros Group 2

    131,100       424,764  
           
 
              10,649,501  
           
 
Oil, Gas & Consumable Fuels - 1.3%                

Approach Resources 1,2

    12,000       443,400  

Credo Petroleum 2

    98,000       1,001,560  

Sprott Resource 2

    164,000       659,321  

Uranerz Energy 1,2

    29,000       73,080  

VAALCO Energy 2

    109,100       1,030,995  

Warren Resources 2

    290,000       945,400  
           
 
              4,153,756  
           
 
Total             14,803,257  
           
 
Financials – 19.7%                
Capital Markets - 7.7%                

ASA Gold and Precious Metals

    30,000       773,400  

BKF Capital Group 2,3

    130,200       151,032  

Cohen & Steers

    27,900       890,010  

Diamond Hill Investment Group

    34,479       2,539,378  

Duff & Phelps Cl. A

    50,000       777,000  

Edelman Financial Group (The)

    209,000       1,381,490  

Epoch Holding Corporation

    196,500       4,692,420  

FBR & Co. 2

    215,000       552,550  

Fiera Sceptre

    78,000       664,695  

INTL FCStone 2

    29,410       620,551  

JZ Capital Partners

    363,999       2,095,980  

MVC Capital

    151,200       1,985,256  

NGP Capital Resources

    164,001       1,074,207  

Queen City Investments 3

    948       957,480  

SHUAA Capital 2

    1,100,000       256,956  

U.S. Global Investors Cl. A

    91,500       663,375  

Urbana Corporation 2

    237,600       257,264  

Virtus Investment Partners 2

    35,000       3,002,300  

Westwood Holdings Group

    8,800       340,824  
           
 
              23,676,168  
           
 
Commercial Banks - 2.0%                

BCB Holdings 2

    806,207       264,353  

Chemung Financial

    40,000       990,000  

Fauquier Bankshares

    135,800       1,677,130  

Financial Institutions

    36,000       582,120  

First Bancorp

    40,200       596,166  

LCNB Corporation

    28,138       365,794  

Peapack-Gladstone Financial

    124,000       1,676,480  
           
 
              6,152,043  
           
 
Diversified Financial Services - 0.7%                

Banca Finnat Euramerica

    1,310,000       472,254  

Bolsa Mexicana de Valores

    300,000       606,856  

GAIN Capital Holdings

    25,000       125,500  

PICO Holdings 2

    45,700       1,071,665  
           
 
              2,276,275  
           
 
Insurance - 3.5%                

Hallmark Financial Services 2

    118,000       931,020  

Hilltop Holdings 2

    101,400       850,746  

Independence Holding

    105,380       1,049,585  

Presidential Life

    241,100       2,755,773  

SeaBright Holdings

    191,000       1,736,190  

State Auto Financial

    139,264       2,034,647  

United Fire Group

    73,603       1,316,758  
           
 
              10,674,719  
           
 
Real Estate Investment Trusts (REITs) - 1.0%                

BRT Realty Trust 2

    242,000       1,691,580  

PennyMac Mortgage Investment Trust

    80,000       1,493,600  
           
 
              3,185,180  
           
 
Real Estate Management & Development - 4.0%                

Consolidated-Tomoka Land

    62,750       1,866,812  

Forestar Group 2

    71,000       1,092,690  

Kennedy-Wilson Holdings

    465,358       6,282,333  

Tejon Ranch 2

    110,162       3,155,040  

ZipRealty 2

    25,000       34,250  
           
 
              12,431,125  
           
 
Thrifts & Mortgage Finance - 0.8%                

Alliance Bancorp, Inc. of Pennsylvania

    41,344       473,389  

BofI Holding 2

    91,262       1,558,755  

HopFed Bancorp

    57,222       506,415  
           
 
              2,538,559  
           
 
Total             60,934,069  
           
 
Health Care – 5.8%                
Biotechnology - 0.7%                

Acadia Pharmaceuticals 1,2

    498,000       1,075,680  

3SBio ADR 2

    45,880       679,024  

Vical 1,2

    120,000       408,000  
           
 
              2,162,704  
           
 
Health Care Equipment & Supplies - 3.8%                

Allied Healthcare Products 2

    226,798       725,753  

Atrion Corporation

    7,557       1,588,557  

CryoLife 2

    50,573       266,520  

DynaVox Cl. A 2

    20,000       61,600  

Exactech 2

    132,100       2,093,785  

Hansen Medical 1,2

    14,864       44,592  

Kensey Nash

    39,378       1,152,200  

Medical Action Industries 2

    125,250       716,430  

STRATEC Biomedical

    14,000       578,826  

Syneron Medical 2

    69,200       741,824  

Theragenics Corporation 2

    336,900       619,896  

Utah Medical Products

    42,300       1,315,530  

Young Innovations

    61,450       1,900,034  
           
 
              11,805,547  
           
 
Health Care Providers & Services - 0.6%                

Gentiva Health Services 2

    23,000       201,020  

PDI 2

    65,383       436,105  

PharMerica Corporation 2

    40,000       497,200  

Psychemedics Corporation

    37,500       368,250  

U.S. Physical Therapy

    10,000       230,500  
           
 
              1,733,075  
           
 
Life Sciences Tools & Services - 0.6%                

Affymetrix 2

    100,000       427,000  

Furiex Pharmaceuticals 2

    23,758       561,401  

PAREXEL International 2

    28,800       776,736  
           
 
              1,765,137  
           
 
Pharmaceuticals - 0.1%                

Daewoong Pharmaceutical

    357       8,444  

XenoPort 1,2

    102,000       459,000  
           
 
              467,444  
           
 
Total             17,933,907  
           
 
Industrials – 26.9%                
Aerospace & Defense - 2.0%                

Astronics Corporation 2

    9,617       336,210  

Astronics Corporation Cl. B 2

    911       31,211  

CPI Aerostructures 2

    38,335       570,042  

Ducommun 2

    72,100       857,990  

HEICO Corporation

    52,500       2,708,475  

Innovative Solutions and Support 2

    100,000       441,000  

Kratos Defense & Security Solutions 2

    72,324       386,210  

SIFCO Industries

    45,800       857,376  
           
 
              6,188,514  
           
 
Air Freight & Logistics - 0.7%                

Forward Air

    50,700       1,859,169  

Pacer International 2

    35,000       221,200  
           
 
              2,080,369  
           
 
Building Products - 3.6%                

AAON

    109,500       2,210,805  

American Woodmark 2

    72,000       1,296,000  

Apogee Enterprises

    57,900       749,805  

Burnham Holdings Cl. A 3

    121,000       1,857,350  

Griffon Corporation

    89,500       957,650  

Trex Company 2

    90,000       2,887,200  

WaterFurnace Renewable Energy

    53,400       1,085,721  
           
 
              11,044,531  
           
 
Commercial Services & Supplies - 2.6%                

Acorn Energy

    60,000       652,200  

CompX International Cl. A

    107,500       1,495,325  

Heritage-Crystal Clean 2

    113,301       2,260,355  

Interface Cl. A

    27,000       376,650  

Team 2

    65,940       2,040,843  

US Ecology

    62,000       1,347,880  
           
 
              8,173,253  
           
 
Construction & Engineering - 2.0%                

Comfort Systems USA

    27,096       295,617  

Integrated Electrical Services 1,2,5

    1,122,500       4,321,625  

Layne Christensen 2

    20,800       462,800  

MYR Group 2

    28,500       509,010  

Pike Electric 2

    90,900       748,107  
           
 
              6,337,159  
           
 
Electrical Equipment - 2.4%                

AZZ

    16,147       833,831  

Deswell Industries

    544,371       1,317,378  

Encore Wire

    15,000       445,950  

Fushi Copperweld 2

    74,163       559,931  

Global Power Equipment Group 2

    10,600       293,620  

Jinpan International

    110,291       962,840  

LSI Industries

    79,812       585,022  

Powell Industries 2

    36,000       1,233,000  

Preformed Line Products

    16,000       1,048,000  
           
 
              7,279,572  
           
 
Industrial Conglomerates - 1.1%                

Raven Industries

    58,400       3,562,984  
           
 
Machinery - 6.4%                

Armstrong Industrial

    2,462,600       607,300  

Cascade Corporation

    8,600       431,032  

CIRCOR International

    14,000       465,780  

Columbus McKinnon 2

    26,950       439,015  

Eastern Company (The)

    39,750       795,000  

FAG Bearings India

    23,700       785,736  

Foster (L.B.) Company Cl. A

    66,200       1,887,362  

FreightCar America

    50,200       1,128,998  

Graham Corporation

    43,900       960,971  

Hurco Companies 2

    53,866       1,521,714  

Industrea

    1,010,600       1,073,000  

NN 2

    164,300       1,340,688  

PMFG 2

    93,800       1,407,938  

Semperit AG Holding

    12,500       535,814  

Sun Hydraulics

    88,387       2,312,204  

Tennant Company

    92,300       4,061,200  
           
 
              19,753,752  
           
 
Professional Services - 3.2%                

Advisory Board (The) 2

    41,400       3,668,868  

CBIZ 2

    47,000       297,040  

eClerx Services

    25,100       359,317  

Exponent 2

    58,400       2,833,568  

GP Strategies 2

    41,385       724,238  

Heidrick & Struggles International

    20,000       440,600  

JobStreet Corporation

    50,000       35,091  

Kforce 2

    60,000       894,000  

On Assignment 2

    41,100       718,017  
           
 
              9,970,739  
           
 
Road & Rail - 1.6%                

Frozen Food Express Industries 2

    157,000       191,540  

Patriot Transportation Holding 2

    111,681       2,601,050  

Universal Truckload Services

    134,200       2,021,052  
           
 
              4,813,642  
           
 
Trading Companies & Distributors - 0.8%                

Aceto Corporation

    72,219       685,358  

Houston Wire & Cable

    67,375       935,839  

Lawson Products

    50,269       759,565  
           
 
              2,380,762  
           
 
Transportation Infrastructure - 0.5%                

Touax

    47,000       1,577,126  
           
 
Total             83,162,403  
           
 
Information Technology – 21.2%                
Communications Equipment - 0.8%                

Bel Fuse Cl. A

    67,705       1,318,217  

ClearOne Communications 2

    25,000       112,500  

Cogo Group 1,2

    48,035       132,096  

Oplink Communications 2

    35,900       613,890  

PC-Tel

    44,100       293,265  
           
 
              2,469,968  
           
 
Computers & Peripherals - 0.9%                

Imation Corporation 2

    112,312       695,211  

Rimage Corporation

    79,200       792,792  

Super Micro Computer 2

    42,754       746,485  

TransAct Technologies 2

    78,600       617,010  
           
 
              2,851,498  
           
 
Electronic Equipment, Instruments & Components - 6.6%                

Agilysys 2

    90,000       809,100  

Checkpoint Systems 2

    13,300       150,024  

Diploma

    50,000       359,888  

Domino Printing Sciences

    80,000       714,017  

Frequency Electronics 2

    34,600       286,142  

Hana Microelectronics

    763,700       542,140  

Hollysys Automation Technologies 2

    248,400       2,633,040  

Inficon Holding

    5,200       1,152,099  

KEMET Corporation 2

    45,200       423,072  

Mercury Computer Systems 2

    56,956       754,667  

Mesa Laboratories

    48,267       2,380,529  

Multi-Fineline Electronix 2

    27,500       754,875  

Newport Corporation 2

    80,900       1,433,548  

Parametric Sound 1,2

    70,000       308,000  

Park Electrochemical

    14,200       429,266  

Pulse Electronics 2

    150,000       376,500  

Research Frontiers 1,2

    30,150       106,731  

Richardson Electronics

    250,900       3,005,782  

Rogers Corporation 2

    58,400       2,263,000  

TTM Technologies 2

    114,400       1,314,456  
           
 
              20,196,876  
           
 
Internet Software & Services - 1.0%                

Bitauto Holdings ADR 1,2

    50,000       265,000  

Marchex Cl. B

    95,000       423,700  

Stamps.com 2

    6,600       184,008  

Support.com 2

    417,500       1,315,125  

WebMediaBrands 2

    525,000       546,000  

World Energy Solutions 2

    72,920       348,558  
           
 
              3,082,391  
           
 
IT Services - 4.7%                

Cass Information Systems

    16,500       659,175  

Computer Task Group 2

    196,700       3,013,444  

CSE Global

    1,508,700       990,157  

Dynamics Research 2

    71,369       687,997  

Forrester Research

    54,900       1,778,760  

Innodata Isogen 2

    218,327       1,176,783  

Official Payments Holdings 2

    333,414       1,690,409  

Sapient Corporation

    350,000       4,357,500  

Yucheng Technologies 1,2

    25,344       80,847  
           
 
              14,435,072  
           
 
Semiconductors & Semiconductor Equipment - 5.2%                

Advanced Energy Industries 2

    57,500       754,400  

Alpha & Omega Semiconductor 2

    211,800       2,037,516  

Amtech Systems 2

    49,200       409,836  

Axcelis Technologies 2

    250,000       430,000  

AXT 2

    46,600       295,910  

BCD Semiconductor Manufacturing ADR 2

    183,514       1,047,865  

Exar Corporation 2

    361,808       3,039,187  

GSI Technology 2

    90,600       384,144  

Integrated Silicon Solution 2

    98,000       1,093,680  

LTX-Credence Corporation 2

    62,200       447,218  

Miraial

    22,030       374,486  

MoSys 2

    400,000       1,588,000  

O2Micro International ADR 2

    111,500       625,515  

Photronics 2

    153,100       1,018,115  

PLX Technology 2

    287,500       1,155,750  

RDA Microelectronics ADR 2

    72,400       800,382  

Rudolph Technologies 2

    58,900       654,379  
           
 
              16,156,383  
           
 
Software - 2.0%                

ACI Worldwide 2

    69,600       2,802,792  

Actuate Corporation 2

    100,300       629,884  

American Software Cl. A

    50,800       435,864  

BSQUARE Corporation 2

    143,100       479,385  

Pegasystems

    49,000       1,869,840  
           
 
              6,217,765  
           
 
Total             65,409,953  
           
 
Materials – 8.5%                
Chemicals - 2.4%                

Balchem Corporation

    63,375       1,917,094  

C. Uyemura & Co.

    10,300       403,190  

Hawkins

    29,697       1,104,728  

Landec Corporation 2

    60,300       393,759  

Quaker Chemical

    73,100       2,883,795  

Zoltek Companies 1,2

    70,000       792,400  
           
 
              7,494,966  
           
 
Construction Materials - 0.8%                

Ash Grove Cement 3

    8,000       1,064,000  

Monarch Cement

    52,303       1,362,493  
           
 
              2,426,493  
           
 
Containers & Packaging - 0.2%                

Broadway Industrial Group

    1,455,200       515,146  
           
 
Metals & Mining - 4.5%                

AuRico Gold 2

    91,250       809,388  

Aurizon Mines 2

    47,000       227,480  

Central Steel & Wire 3

    1,088       762,688  

Endeavour Mining 2

    652,500       1,458,795  

Endeavour Mining (Warrants) 2

    50,000       32,583  

Exeter Resource 2

    140,000       383,600  

Extorre Gold Mines 2

    140,000       845,600  

Golden Star Resources 2

    450,000       837,000  

Goldgroup Mining 2

    550,000       512,808  

Haynes International

    10,100       639,835  

Horsehead Holding Corporation 2

    50,488       575,058  

Kingsrose Mining 2

    224,000       315,561  

MAG Silver 2

    74,750       754,975  

Midway Gold 2

    345,000       493,350  

Richmont Mines 2

    24,800       192,944  

RTI International Metals 2

    25,000       576,500  

Scorpio Mining 2

    136,000       177,252  

Seabridge Gold 2

    16,700       335,503  

Synalloy Corporation

    58,200       764,748  

Universal Stainless & Alloy Products 2

    39,899       1,704,485  

Vista Gold 2

    440,305       1,382,558  
           
 
              13,782,711  
           
 
Paper & Forest Products - 0.6%                

Pope Resources L.P.

    40,941       1,789,121  

Qunxing Paper Holdings 4

    1,500,000       79,737  
           
 
              1,868,858  
           
 
Total             26,088,174  
           
 
Utilities – 0.1%                
Independent Power Producers & Energy Traders - 0.1%                

Alterra Power 2

    450,000       275,202  

China Hydroelectric ADS 1,2

    73,100       147,662  
           
 
Total             422,864  
           
 
Miscellaneous 6 – 0.4%                
Total             1,230,399  
           
 
TOTAL COMMON STOCKS                

(Cost $237,512,537)

            321,120,545  
           
 
PREFERRED STOCK – 0.4%                

Seneca Foods Conv. 2,3

               

(Cost $578,719)

    45,409       1,151,118  
           
 
REPURCHASE AGREEMENT – 15.1%                
Fixed Income Clearing Corporation,                

0.01% dated 3/30/12, due 4/2/12,

               

maturity value $46,726,039 (collateralized

               

by obligations of various U.S. Government

               

Agencies, 0.18%-0.20% due 11/21/12-11/23/12,

               

valued at $47,665,000)

               

(Cost $46,726,000)

            46,726,000  
           
 
COLLATERAL RECEIVED FOR SECURITIES                

LOANED – 1.7%

               
Money Market Funds                

Federated Government Obligations Fund

               

(7 day yield-0.0098%)

               

(Cost $5,203,894)

            5,203,894  
           
 
TOTAL INVESTMENTS – 121.2%                

(Cost $290,021,150)

            374,201,557  
 
LIABILITIES LESS CASH                

AND OTHER ASSETS – (1.8)%

            (5,385,157 )
 
PREFERRED STOCK – (19.4)%             (60,000,000 )
           
 
NET ASSETS APPLICABLE TO COMMON                
STOCKHOLDERS – 100.0%           $ 308,816,400  
           
 

1 All or a portion of these securities were on loan at March 31, 2012. Total market value of loaned securities at March 31, 2012, was $4,974,136.
2 Non-income producing.
3 These securities are defined as Level 2 securities due to fair value being based on quoted prices for similar securities.
4 Securities for which market quotations are not readily available represent 0.1% of net assets. These securities have been valued at their fair value under procedures approved by the Fund’s Board of Directors. These securities are defined as Level 3 securities due to the use of significant unobservable inputs in the determination of fair value.
5 At March 31, 2012, the Fund owned 5% or more of the Company’s outstanding voting securities thereby making the Company an Affiliated Company as that term is defined in the Investment Company Act of 1940.
6 Includes securities first acquired in 2012 and less than 1% of net assets applicable to Common Stockholders.

TAX INFORMATION: The cost of total investments for Federal income tax purposes was $290,886,380. At March 31, 2012, net unrealized appreciation for all securities was $83,315,177, consisting of aggregate gross unrealized appreciation of $105,573,307 and aggregate gross unrealized depreciation of $22,258,130. The primary difference between book and tax basis cost is the timing of the recognition of losses on securities sold.

Valuation of Investments:
Investment transactions are accounted for on the trade date. Securities are valued as of the close of trading on the New York Stock Exchange (NYSE) (generally 4:00 p.m. Eastern time) on the valuation date. Securities that trade on an exchange, and securities traded on Nasdaq’s Electronic Bulletin Board, are valued at their last reported sales price or Nasdaq official closing price taken from the primary market in which each security trades or, if no sale is reported for such day, at their bid price. Other over-the-counter securities for which market quotations are readily available are valued at their highest bid price, except in the case of some bonds and other fixed income securities which may be valued by reference to other securities with comparable ratings, interest rates and maturities, using established independent pricing services. The Fund values its non-U.S. dollar denominated securities in U.S. dollars daily at the prevailing foreign currency exchange rates as quoted by a major bank. Securities for which market quotations are not readily available are valued at their fair value in accordance with the provisions of the 1940 Act, under procedures approved by the Fund’s Board of Directors, and are reported as Level 3 securities. As a general principle, the fair value of a security is the amount which the Fund might reasonably expect to receive for the security upon its current sale. However, in light of the judgment involved in fair valuations, there can be no assurance that a fair value assigned to a particular security will be the amount which the Fund might be able to receive upon its current sale. In addition, if, between the time trading ends on a particular security and the close of the customary trading session on the NYSE, events occur that are significant and may make the closing price unreliable, the Fund may fair value the security. The Fund uses an independent pricing service to provide fair value estimates for relevant non-U.S. equity securities on days when the U.S. market volatility exceeds a certain threshold. This pricing service uses proprietary correlations it has developed between the movement of prices of non-U.S. equity securities and indices of U.S.-traded securities, futures contracts and other indications to estimate the fair value of relevant non-U.S. securities. When fair value pricing is employed, the prices of securities used by the Fund may differ from quoted or published prices for the same security. Investments in money market funds are valued at net asset value per share.

Various inputs are used in determining the value of the Fund’s investments, as noted above. These inputs are summarized in the three broad levels below:
Level 1  – 
quoted prices in active markets for identical securities.
Level 2  – 
other significant observable inputs (including quoted prices for similar securities, foreign securities that may be fair valued and repurchase agreements). The table below includes all Level 2 securities. Level 2 securities with values based on quoted prices for similar securities are noted in the Schedule of Investments.
Level 3  – 
significant unobservable inputs (including last trade price before trading was suspended, or at a discount thereto for lack of marketability or otherwise, market price information regarding other securities, information received from the company and/or published documents, including SEC filings and financial statements, or other publicly available information).
The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.
The following is a summary of the inputs used to value the Fund’s investments as of March 31, 2012. For a detailed breakout of common stocks by sector classification, please refer to the Schedule of Investments.

    Level 1   Level 2   Level 3   Total

Common Stocks

  $ 314,250,537       $6,674,177     $ 195,831     $ 321,120,545  

Preferred Stocks

          1,151,118             1,151,118  

Cash Equivalents

    5,203,894       46,726,000             51,929,894  

                                 

Level 3 Reconciliation:

                               

                                    Realized and        
    Balance as of                           Unrealized        
    12/31/11   Purchases   Transfers Out   Sales   Gain (Loss)   Balance as of 3/31/12

Common Stocks

  $ 347,895                       $ (152,064 )   $ 195,831  

Repurchase Agreements:
The Fund may enter into repurchase agreements with institutions that the Fund’s investment adviser has determined are creditworthy. The Fund restricts repurchase agreements to maturities of no more than seven days. Securities pledged as collateral for repurchase agreements, which are held until maturity of the repurchase agreements, are marked-to-market daily and maintained at a value at least equal to the principal amount of the repurchase agreement (including accrued interest). Repurchase agreements could involve certain risks in the event of default or insolvency of the counter-party, including possible delays or restrictions upon the ability of the Fund to dispose of its underlying securities.

Securities Lending:
The Fund loans securities through a lending agent to qualified institutional investors for the purpose of realizing additional income. Collateral for the Fund on all securities loaned is accepted in cash and cash equivalents and invested temporarily by the custodian. The collateral maintained is at least 100% of the current market value of the loaned securities. The market value of the loaned securities is determined at the close of business of the Fund and any additional required collateral is delivered to the Fund on the next business day. The Fund retains the risk of any loss on the securities on loan as well as incurring the potential loss on investments purchased with cash collateral received for securities lending. The Fund’s securities lending income consists of the income earned on investing cash collateral, plus any premium payments received for lending certain securities, less any rebates paid to borrowers and lending agent fees associated with the loan. The lending agent is not affiliated with Royce.

Transactions in Affiliated Companies:
An “Affiliated Company” as defined in the Investment Company Act of 1940, is a company in which a fund owns 5% or more of the company’s outstanding voting securities at any time during the period. The Fund effected the following transactions in shares of such companies for the three months ended March 31, 2012:

                                                                 
    Shares   Market Value   Cost of   Cost of   Realized   Dividend   Shares   Market Value
Affiliated Company   12/31/11   12/31/11   Purchases   Sales   Gain (Loss)   Income   3/31/12   3/31/12

Integrated Electrical Services     1,122,500     $ 2,155,200                               1,122,500     $ 4,321,625  

            $ 2,155,200                                         $ 4,321,625  

Other information regarding the Fund is available in the Fund’s most recent Report to Stockholders. This information is available through The Royce Funds (www.roycefunds.com) and on the Securities and Exchange Commission’s website (www.sec.gov).



Item 2 - Controls and Procedures

(a) The Registrant’s principal executive and principal financial officers have concluded, based on their evaluation of the Registrant’s disclosure controls and procedures as of a date within 90 days of the filing date of this report (as required by Rule 30a-3(b) under the Investment Company Act of 1940 (the “Act”)), that the Registrant’s disclosure controls and procedures (as defined by Rule 30a-3(c) under the Act) are reasonably designed to ensure that information required to be disclosed by the Registrant on Form N-Q is recorded, processed, summarized and reported within the required time periods and that information required to be disclosed by the Registrant in the reports that it files or submits on Form N-Q is accumulated and communicated to the Registrant’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure.

(b) There were no changes in the Registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the Act) during the Registrant’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the internal control over financial reporting.

Item 3 - Exhibits
Certifications pursuant to Rule 30a-2(a) under the Act are attached hereto.



SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Royce Micro-Cap Trust, Inc.
By:

/s/ Charles M. Royce
Charles M. Royce
President, Royce Micro-Cap Trust, Inc.
Date: May 29, 2012

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

By:

/s/ Charles M. Royce
Charles M. Royce
President, Royce Micro-Cap Trust, Inc.
Date: May 29, 2012

By:

/s/ John D. Diederich
John D. Diederich
Treasurer, Royce Micro-Cap Trust, Inc.
Date: May 29, 2012