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 811-05227 Name of Fund: BlackRock Apex Municipal Fund, Inc. (APX) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: Donald C. Burke, Chief Executive Officer, BlackRock Apex Municipal Fund, Inc., 800 Scudders Mill Road, Plainsboro, NJ, 08536. Mailing address: P.O. Box 9011, Princeton, NJ, 08543-9011 Registrant's telephone number, including area code: (800) 882-0052, Option 4 Date of fiscal year end: 06/30/2009 Date of reporting period: 07/01/2008 - 09/30/2008 Item 1 - Schedule of Investments BlackRock Apex Municipal Fund, Inc. Schedule of Investments September 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) -------------------------------------------------------------------------------- Par State Municipal Bonds (000) Value ------------------------------------------------------------------------------------------------------------------------------------ Alabama - 0.5% Tuscaloosa, Alabama, Special Care Facilities Financing Authority, Residential Care Facility Revenue Bonds (Capstone Village, Inc. Project), Series A, 5.875%, 8/01/36 $ 1,255 $ 887,360 ------------------------------------------------------------------------------------------------------------------------------------ Alaska - 1.1% Alaska Industrial Development and Expert Authority Revenue Bonds (Williams Lynxs Alaska Cargoport), AMT, 8%, 5/01/23 2,000 1,853,520 ------------------------------------------------------------------------------------------------------------------------------------ Arizona - 4.2% Maricopa County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project 1), Series A, 6.625%, 7/01/20 1,100 948,750 Maricopa County, Arizona, IDA, M/F Housing Revenue Bonds (Sun King Apartments Project), Series A, 5.875%, 11/01/08 15 15,007 Maricopa County, Arizona, IDA, M/F Housing Revenue Bonds (Sun King Apartments Project), Series A, 6%, 11/01/10 20 19,945 Maricopa County, Arizona, IDA, M/F Housing Revenue Bonds (Sun King Apartments Project), Series A, 6.75%, 5/01/31 1,020 905,505 Phoenix, Arizona, IDA, Airport Facility, Revenue Refunding Bonds (America West Airlines Inc. Project), AMT, 6.30%, 4/01/23 2,950 2,203,680 Pima County, Arizona, IDA, Education Revenue Bonds (Arizona Charter Schools Project), Series E, 7.25%, 7/01/31 970 959,728 Salt Verde Financial Corporation, Arizona, Senior Gas Revenue Bonds, 5%, 12/01/32 1,950 1,401,017 Salt Verde Financial Corporation, Arizona, Senior Gas Revenue Bonds, 5%, 12/01/37 230 160,627 Yavapai County, Arizona, IDA, Hospital Facility Revenue Bonds (Yavapai Regional Medical Center), Series A, 6%, 8/01/33 500 460,700 -------------- 7,074,959 ------------------------------------------------------------------------------------------------------------------------------------ California - 2.7% Fontana, California, Special Tax, Refunding (Community Facilities District Number 22 - Sierra), 6%, 9/01/34 1,000 928,250 San Jose, California, Airport Revenue Refunding Bonds, AMT, Series A, 5.50%, 3/01/32 (a) 2,970 2,664,239 Southern California Public Power Authority, Natural Gas Project Number 1 Revenue Bonds, Series A, 5%, 11/01/29 1,435 1,029,340 -------------- 4,621,829 ------------------------------------------------------------------------------------------------------------------------------------ Colorado - 4.1% Colorado Health Facilities Authority, Revenue Refunding Bonds (Christian Living Communities Project), Series A, 5.75%, 1/01/26 450 383,499 Elk Valley, Colorado, Public Improvement Revenue Bonds (Public Improvement Fee), Series A, 7.30%, 9/01/22 2,800 2,727,872 North Range Metropolitan District Number 1, Colorado, GO, 7.25%, 12/15/11 (b) 1,235 1,367,145 -------------------------------------------------------------------------------- Portfolio Abbreviations -------------------------------------------------------------------------------- To simplify the listings of portfolio holdings in the Schedule of Investments, the names of many of the securities have been abbreviated according to the list below. AMT Alternative Minimum Tax (subject to) EDA Economic Development Authority GO General Obligation Bonds HDA Housing Development Authority HFA Housing Finance Agency IDA Industrial Development Authority IDR Industrial Development Revenue Bonds M/F Multi-Family PCR Pollution Control Revenue Bonds 1 BlackRock Apex Municipal Fund, Inc. Schedule of Investments September 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) -------------------------------------------------------------------------------- Par State Municipal Bonds (000) Value ------------------------------------------------------------------------------------------------------------------------------------ Plaza Metropolitan District Number 1, Colorado, Tax Allocation Revenue Bonds (Public Improvement Fees), 8%, 12/01/25 $ 2,000 $ 2,025,320 Plaza Metropolitan District Number 1, Colorado, Tax Allocation Revenue Bonds (Public Improvement Fees), 8.125%, 12/01/25 500 483,130 -------------- 6,986,966 ------------------------------------------------------------------------------------------------------------------------------------ Connecticut - 0.9% Connecticut State Development Authority, Airport Facility Revenue Bonds (Learjet Inc. Project), AMT, 7.95%, 4/01/26 490 506,758 Connecticut State, HFA, Housing Mortgage Finance Program Revenue Bonds, AMT, Sub-Series A-2, 5.15%, 5/15/38 640 534,509 Mashantucket Western Pequot Tribe, Connecticut, Revenue Refunding Bonds, Sub-Series A, 5.50%, 9/01/36 615 470,217 -------------- 1,511,484 ------------------------------------------------------------------------------------------------------------------------------------ Florida - 12.1% Capital Projects Finance Authority, Florida, Continuing Care Retirement Revenue Bonds (Glenridge on Palmer Ranch), Series A, 8%, 6/01/12 (b) 800 938,200 Capital Region Community Development District, Florida, Special Assessment Revenue Bonds, Series A, 7%, 5/01/39 470 441,917 Halifax Hospital Medical Center, Florida, Hospital Revenue Refunding Bonds, Series A, 5%, 6/01/38 840 646,405 Highlands County, Florida, Health Facilities Authority, Hospital Revenue Bonds (Adventist Health System), Series C, 5.25%, 11/15/36 850 730,048 Hillsborough County, Florida, IDA, Exempt Facilities Revenue Bonds (National Gypsum Company), AMT, Series A, 7.125%, 4/01/30 2,500 2,232,775 Jacksonville, Florida, Economic Development Commission, Health Care Facilities, Revenue Refunding Bonds (Florida Proton Therapy Institute), Series A, 6%, 9/01/17 915 867,749 Jacksonville, Florida, Economic Development Commission, IDR (Gerdau Ameristeel US, Inc.), AMT, 5.30%, 5/01/37 900 657,414 Lakewood Ranch, Florida, Community Development District Number 5, Special Assessment Revenue Refunding Bonds, Series A, 6.70%, 5/01/11 (b) 735 794,506 Lee County, Florida, IDA, IDR (Lee Charter Foundation), Series A, 5.375%, 6/15/37 1,810 1,328,974 Midtown Miami, Florida, Community Development District, Special Assessment Revenue Bonds, Series A, 6%, 5/01/24 1,485 1,300,682 Midtown Miami, Florida, Community Development District, Special Assessment Revenue Bonds, Series A, 6.25%, 5/01/37 1,350 1,152,306 Orlando, Florida, Urban Community Development District, Capital Improvement Special Assessment Bonds, Series A, 6.95%, 5/01/11 (b) 1,505 1,636,131 Santa Rosa Bay Bridge Authority, Florida, Revenue Bonds, 6.25%, 7/01/28 2,140 1,734,812 Sarasota County, Florida, Health Facilities Authority, Retirement Facility Revenue Refunding Bonds (Village on the Isle Project), 5.50%, 1/01/27 590 487,889 Sarasota County, Florida, Health Facilities Authority, Retirement Facility Revenue Refunding Bonds (Village on the Isle Project), 5.50%, 1/01/32 550 436,827 Sumter Landing Community Development District, Florida, Recreational Revenue Bonds, Sub-Series B, 5.70%, 10/01/38 1,645 1,277,622 2 BlackRock Apex Municipal Fund, Inc. Schedule of Investments September 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) -------------------------------------------------------------------------------- Par State Municipal Bonds (000) Value ------------------------------------------------------------------------------------------------------------------------------------ Tampa Palms, Florida, Open Space and Transportation Community Development District Revenue Bonds, Capital Improvement (Richmond Place Project), 7.50%, 5/01/18 $ 2,235 $ 2,236,274 Tolomato Community Development District, Florida, Special Assessment Bonds, 6.65%, 5/01/40 1,850 1,691,677 -------------- 20,592,208 ------------------------------------------------------------------------------------------------------------------------------------ Georgia - 3.4% Atlanta, Georgia, Tax Allocation Bonds (Atlantic Station Project), 7.90%, 12/01/11 (b) 2,000 2,307,200 Atlanta, Georgia, Tax Allocation Bonds (Princeton Lakes Project), 5.50%, 1/01/31 495 404,633 Clayton County, Georgia, Tax Allocation Bonds (Ellenwood Project), 7.50%, 7/01/33 1,640 1,440,953 Main Street Natural Gas, Inc., Georgia, Gas Project Revenue Bonds, Series A, 6.375%, 7/15/38 (c)(d) 650 84,500 Rockdale County, Georgia, Development Authority Revenue Bonds (Visy Paper Project), AMT, Series A, 6.125%, 1/01/34 1,680 1,464,674 -------------- 5,701,960 ------------------------------------------------------------------------------------------------------------------------------------ Idaho - 0.9% Idaho Health Facilities Authority, Revenue Refunding Bonds (Valley Vista Care Corporation), Series A, 7.75%, 11/15/16 1,470 1,579,309 ------------------------------------------------------------------------------------------------------------------------------------ Illinois - 4.7% Chicago, Illinois, O'Hare International Airport, Special Facility Revenue Refunding Bonds (American Airlines Inc. Project), 5.50%, 12/01/30 2,860 1,458,085 Illinois State Finance Authority Revenue Bonds (Clare At Water Tower Project), Series A, 6.125%, 5/15/38 2,050 1,641,414 Illinois State Finance Authority Revenue Bonds (Landing At Plymouth Place Project), Series A, 6%, 5/15/37 430 347,186 Illinois State Finance Authority Revenue Bonds (Monarch Landing, Inc. Project), Series A, 7%, 12/01/37 575 519,242 Illinois State Finance Authority Revenue Bonds (Primary Health Care Centers Program), 6.60%, 7/01/24 490 430,044 Lincolnshire, Illinois, Special Service Area Number 1, Special Tax Bonds (Sedgebrook Project), 6.25%, 3/01/34 755 664,687 Lombard, Illinois, Public Facilities Corporation, First Tier Revenue Bonds (Conference Center and Hotel), Series A-1, 7.125%, 1/01/36 2,400 2,290,392 Village of Wheeling, Illinois, Revenue Bonds (North Milwaukee/Lake-Cook Tax Increment Financing (TIF) Redevelopment Project), 6%, 1/01/25 760 649,390 -------------- 8,000,440 ------------------------------------------------------------------------------------------------------------------------------------ Indiana - 1.8% Indiana Health and Educational Facilities Financing Authority, Hospital Revenue Bonds (Community Foundation of Northwest Indiana), 5.50%, 3/01/37 1,985 1,628,057 Vanderburgh County, Indiana, Redevelopment Commission, Redevelopment District Tax Allocation Bonds, 5.25%, 2/01/31 820 708,660 Vigo County, Indiana, Hospital Authority Revenue Bonds (Union Hospital, Inc.), 5.70%, 9/01/37 440 347,785 Vigo County, Indiana, Hospital Authority Revenue Bonds (Union Hospital, Inc.), 5.75%, 9/01/42 545 423,400 -------------- 3,107,902 ------------------------------------------------------------------------------------------------------------------------------------ 3 BlackRock Apex Municipal Fund, Inc. Schedule of Investments September 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) -------------------------------------------------------------------------------- Par State Municipal Bonds (000) Value ------------------------------------------------------------------------------------------------------------------------------------ Iowa - 1.8% Iowa Finance Authority, Health Care Facilities, Revenue Refunding Bonds (Care Initiatives Project), 9.25%, 7/01/11 (b) $ 2,580 $ 3,035,060 ------------------------------------------------------------------------------------------------------------------------------------ Kansas - 0.4% Wyandotte County, Kansas, Kansas City Unified Government Revenue Refunding Bonds (General Motors Corporation Project), 6%, 6/01/25 1,230 663,278 ------------------------------------------------------------------------------------------------------------------------------------ Louisiana - 2.6% Louisiana Local Government Environmental Facilities and Community Development Authority Revenue Bonds (Westlake Chemical Corporation), 6.75%, 11/01/32 2,000 1,750,040 Louisiana Public Facilities Authority, Hospital Revenue Bonds (Franciscan Missionaries of Our Lady Health System, Inc.), Series A, 5.25%, 8/15/36 1,300 1,089,023 Saint John Baptist Parish, Louisiana, Revenue Bonds (Marathon Oil Corporation), Series A, 5.125%, 6/01/37 2,050 1,577,065 -------------- 4,416,128 ------------------------------------------------------------------------------------------------------------------------------------ Maryland - 1.2% Baltimore, Maryland, Convention Center Hotel Revenue Bonds, Sub-Series B, 5.875%, 9/01/39 385 313,232 Maryland State Energy Financing Administration, Limited Obligation Revenue Bonds (Cogeneration-AES Warrior Run), AMT, 7.40%, 9/01/19 1,500 1,399,650 Maryland State Health and Higher Educational Facilities Authority Revenue Bonds (Washington Christian Academy), 5.50%, 7/01/38 410 305,552 -------------- 2,018,434 ------------------------------------------------------------------------------------------------------------------------------------ Massachusetts - 3.2% Massachusetts State Development Finance Agency, First Mortgage Revenue Bonds (Overlook Communities Inc.), Series A, 6.25%, 7/01/34 1,845 1,568,656 Massachusetts State Development Finance Agency, Revenue Refunding Bonds (Eastern Nazarene College), 5.625%, 4/01/19 1,245 1,140,818 Massachusetts State Health and Educational Facilities Authority Revenue Bonds (Jordan Hospital), Series E, 6.75%, 10/01/33 850 784,303 Massachusetts State Health and Educational Facilities Authority, Revenue Refunding Bonds (Bay Cove Human Services Issue), Series A, 5.90%, 4/01/28 1,030 886,408 Massachusetts State Health and Educational Facilities Authority, Revenue Refunding Bonds (Milton Hospital), Series, 5.50%, 7/01/16 500 481,930 Massachusetts State Industrial Finance Agency Revenue Bonds, Sewer Facility (Resource Control Composting), AMT, 9.25%, 6/01/10 500 503,135 -------------- 5,365,250 ------------------------------------------------------------------------------------------------------------------------------------ Michigan - 1.6% Advanced Technology Academy, Michigan, Revenue Bonds, 6%, 11/01/37 625 550,531 Macomb County, Michigan, Hospital Finance Authority, Hospital Revenue Bonds (Mount Clemens General Hospital), Series B, 5.875%, 11/15/13 (b) 1,150 1,262,642 Monroe County, Michigan, Hospital Financing Authority, Hospital Revenue Refunding Bonds (Mercy Memorial Hospital Corporation), 5.50%, 6/01/35 1,260 892,584 -------------- 2,705,757 ------------------------------------------------------------------------------------------------------------------------------------ Missouri - 0.5% Kansas City, Missouri, IDA, First Mortgage Health Facilities Revenue Bonds (Bishop Spencer Place), Series A, 6.50%, 1/01/35 1,000 878,600 ------------------------------------------------------------------------------------------------------------------------------------ Nevada - 0.6% Clark County, Nevada, IDR (Nevada Power Company Project), AMT, Series A, 5.60%, 10/01/30 955 720,290 Clark County, Nevada, Improvement District Number 142, Special Assessment Bonds, 6.375%, 8/01/23 410 370,603 -------------- 1,090,893 ------------------------------------------------------------------------------------------------------------------------------------ 4 BlackRock Apex Municipal Fund, Inc. Schedule of Investments September 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) -------------------------------------------------------------------------------- Par State Municipal Bonds (000) Value ------------------------------------------------------------------------------------------------------------------------------------ New Hampshire - 0.4% New Hampshire Health and Education Facilities Authority, Hospital Revenue Bonds (Catholic Medical Center), 5%, 7/01/36 $ 835 $ 667,666 ------------------------------------------------------------------------------------------------------------------------------------ New Jersey - 9.7% Camden County, New Jersey, Pollution Control Financing Authority, Solid Waste Resource Recovery, Revenue Refunding Bonds, AMT, Series A, 7.50%, 12/01/10 6,000 6,012,540 New Jersey EDA, Cigarette Tax Revenue Bonds, 5.50%, 6/15/24 2,170 1,888,660 New Jersey EDA, IDR, Refunding (Newark Airport Marriott Hotel), 7%, 10/01/14 1,500 1,503,150 New Jersey EDA, Retirement Community Revenue Bonds (Cedar Crest Village Inc. Facility), Series A, 7.25%, 11/15/11 (b) 530 597,109 New Jersey EDA, Special Facility Revenue Bonds (Continental Airlines Inc. Project), AMT, 6.625%, 9/15/12 3,050 2,837,842 New Jersey EDA, Special Facility Revenue Bonds (Continental Airlines Inc. Project), AMT, 6.25%, 9/15/29 1,000 758,610 New Jersey Health Care Facilities Financing Authority Revenue Bonds (Pascack Valley Hospital Association), 6.625%, 7/01/36 (c)(d) 1,870 62,271 New Jersey Health Care Facilities Financing Authority, Revenue Refunding Bonds (Saint Joseph's Healthcare System), 6.625%, 7/01/38 1,680 1,513,529 New Jersey State Transportation Trust Fund Authority, Transportation System Revenue Bonds, Series C, 5.05%, 12/15/35 (a)(e) 2,760 545,845 Tobacco Settlement Financing Corporation of New Jersey, Asset-Backed Revenue Refunding Bonds, Series 1A, 5%, 6/01/41 1,070 674,314 -------------- 16,393,870 ------------------------------------------------------------------------------------------------------------------------------------ New Mexico - 2.9% Farmington, New Mexico, PCR, Refunding (Tucson Electric Power Company - San Juan Project), Series A, 6.95%, 10/01/20 5,000 5,008,550 ------------------------------------------------------------------------------------------------------------------------------------ New York - 3.3% Dutchess County, New York, IDA, Civic Facility Revenue Bonds (Saint Francis Hospital), Series B, 7.50%, 3/01/29 1,000 1,042,450 New York City, New York, City IDA, Civic Facility Revenue Bonds, Series C, 6.80%, 6/01/28 350 351,001 New York City, New York, City IDA, Civic Facility Revenue Bonds (Special Needs Facility Pooled Program), Series C-1, 6.50%, 7/01/24 830 744,386 New York City, New York, City IDA, Special Facility Revenue Bonds (British Airways Plc Project), AMT, 7.625%, 12/01/32 1,730 1,451,262 New York Liberty Development Corporation Revenue Bonds (National Sports Museum Project), Series A, 6.125%, 2/15/19 (c)(d) 630 219,637 New York State Dormitory Authority, Non-State Supported Debt, Revenue Refunding Bonds (New York University Hospital Center), Series A, 5%, 7/01/20 2,040 1,789,488 -------------- 5,598,224 ------------------------------------------------------------------------------------------------------------------------------------ North Carolina - 1.7% North Carolina Medical Care Commission, Health Care Facilities, First Mortgage Revenue Refunding Bonds (Deerfield Episcopal Project), Series A, 6.125%, 11/01/38 3,230 2,919,726 ------------------------------------------------------------------------------------------------------------------------------------ Ohio - 1.3% Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Bonds, Series A-2, 6.50%, 6/01/47 2,685 2,178,851 ------------------------------------------------------------------------------------------------------------------------------------ 5 BlackRock Apex Municipal Fund, Inc. Schedule of Investments September 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) -------------------------------------------------------------------------------- Par State Municipal Bonds (000) Value ------------------------------------------------------------------------------------------------------------------------------------ Pennsylvania - 7.9% Bucks County, Pennsylvania, IDA, Retirement Community Revenue Bonds (Ann's Choice Inc.), Series A, 6.125%, 1/01/25 $ 1,160 $ 976,917 Chester County, Pennsylvania, Health and Education Facilities Authority, Senior Living Revenue Refunding Bonds (Jenners Pond Inc. Project), 7.625%, 7/01/12 (b) 1,750 2,030,717 Harrisburg, Pennsylvania, Authority, University Revenue Bonds (Harrisburg University of Science), Series B, 6%, 9/01/36 600 515,106 Lancaster County, Pennsylvania, Hospital Authority Revenue Bonds (Brethren Village Project), Series A, 6.25%, 7/01/26 475 432,768 Lancaster County, Pennsylvania, Hospital Authority Revenue Bonds (Brethren Village Project), Series A, 6.50%, 7/01/40 410 374,773 Montgomery County, Pennsylvania, IDA, Revenue Bonds (Whitemarsh Continuing Care Project), 6.25%, 2/01/35 1,700 1,416,814 Pennsylvania Economic Development Financing Authority, Exempt Facilities Revenue Bonds (Reliant Energy), AMT, Series B, 6.75%, 12/01/36 1,940 1,698,936 Philadelphia, Pennsylvania, Authority for IDR (Air Cargo), AMT, Series A, 7.50%, 1/01/25 1,600 1,552,352 Philadelphia, Pennsylvania, Authority for IDR, Commercial Development, 7.75%, 12/01/17 4,460 4,461,293 -------------- 13,459,676 ------------------------------------------------------------------------------------------------------------------------------------ Rhode Island - 1.0% Central Falls, Rhode Island, Detention Facility Corporation, Revenue Refunding Bonds, 7.25%, 7/15/35 1,750 1,664,740 ------------------------------------------------------------------------------------------------------------------------------------ South Carolina - 3.7% Connector 2000 Association, Inc., South Carolina, Toll Road and Capital Appreciation Revenue Bonds, Senior-Series B, 6.50%, 1/01/09 (e) 1,100 1,068,144 Connector 2000 Association, Inc., South Carolina, Toll Road and Capital Appreciation Revenue Bonds, Senior-Series B, 7.969%, 1/01/14 (e) 1,075 585,746 South Carolina Housing Finance and Development Authority, Mortgage Revenue Refunding Bonds, AMT, Series A-2, 5.15%, 7/01/37 (a) 5,690 4,695,502 -------------- 6,349,392 ------------------------------------------------------------------------------------------------------------------------------------ Tennessee - 1.5% Knox County, Tennessee, Health, Educational and Housing Facilities Board, Hospital Facilities Revenue Refunding Bonds (Covenant Health), Series A, 5.03%, 1/01/37 (e) 5,000 696,450 Shelby County, Tennessee, Health, Educational and Housing Facilities Board Revenue Bonds (Germantown Village), 6.25%, 12/01/34 245 184,399 Shelby County, Tennessee, Health, Educational and Housing Facilities Board Revenue Bonds (Germantown Village), Series A, 7.25%, 12/01/34 1,800 1,684,062 -------------- 2,564,911 ------------------------------------------------------------------------------------------------------------------------------------ Texas - 5.0% Brazos River Authority, Texas, PCR, Refunding (TXU Energy Company LLC Project), AMT, Series A, 7.70%, 4/01/33 2,530 2,268,271 Danbury, Texas, Higher Education Authority Revenue Bonds (A.W. Brown-Fellowship Charter School), Series A, 5.125%, 8/15/36 1,000 764,470 Houston, Texas, Health Facilities Development Corporation, Retirement Facility Revenue Bonds (Buckingham Senior Living Community), Series A, 7.125%, 2/15/14 (b) 1,000 1,177,090 6 BlackRock Apex Municipal Fund, Inc. Schedule of Investments September 30, 2008 (Unaudited) (Percentages shown are based on Net Assets) -------------------------------------------------------------------------------- Par State Municipal Bonds (000) Value ------------------------------------------------------------------------------------------------------------------------------------ North Texas Tollway Authority, System Revenue Refunding Bonds, Second Tier, Series F, 6.125%, 1/01/31 $ 2,540 $ 2,437,079 Texas State Public Financing Authority, Charter School Financing Corporation, Revenue Refunding Bonds (KIPP, Inc.), Series A, 5%, 2/15/28 (f) 2,250 1,748,655 -------------- 8,395,565 ------------------------------------------------------------------------------------------------------------------------------------ Utah - 1.3% Carbon County, Utah, Solid Waste Disposal, Revenue Refunding Bonds (Laidlaw Environmental), AMT, Series A, 7.45%, 7/01/17 2,240 2,243,181 ------------------------------------------------------------------------------------------------------------------------------------ Virginia - 1.8% Dulles Town Center, Virginia, Community Development Authority, Special Assessment Tax (Dulles Town Center Project), 6.25%, 3/01/26 2,430 2,243,425 Tobacco Settlement Financing Corporation of Virginia, Revenue Refunding Bonds, Senior Series B-1, 5%, 6/01/47 1,250 794,650 -------------- 3,038,075 ------------------------------------------------------------------------------------------------------------------------------------ Washington - 0.6% Washington State Housing Financing Commission, Nonprofit Revenue Bonds (Skyline at First Hill Project), Series A, 5.625%, 1/01/38 1,200 954,108 ------------------------------------------------------------------------------------------------------------------------------------ West Virginia - 0.6% Princeton, West Virginia, Hospital Revenue Refunding Bonds (Community Hospital Association Inc. Project), 6.20%, 5/01/13 965 954,732 ------------------------------------------------------------------------------------------------------------------------------------ Wisconsin - 0.7% Wisconsin State Health and Educational Facilities Authority Revenue Bonds (New Castle Place Project), Series A, 7%, 12/01/31 1,320 1,246,410 ------------------------------------------------------------------------------------------------------------------------------------ Wyoming - 1.1% Wyoming Municipal Power Agency, Power Supply Revenue Bonds, Series A, 5.375%, 1/01/42 2,090 1,845,533 ------------------------------------------------------------------------------------------------------------------------------------ U.S. Virgin Virgin Islands Government Refinery Facilities, Revenue Refunding Bonds Islands - 1.2% (Hovensa Coker Project), AMT, 6.50%, 7/01/21 2,100 1,991,766 ------------------------------------------------------------------------------------------------------------------------------------ Total Municipal Bonds - 94.0% 159,566,313 ------------------------------------------------------------------------------------------------------------------------------------ Municipal Bonds Transferred to Tender Option Bond Trusts (g) ------------------------------------------------------------------------------------------------------------------------------------ Florida - 3.1% Miami-Dade County, Florida, Aviation Revenue Refunding Bonds (Miami International Airport), AMT, Series A, 5.25%, 10/01/33 (h) 6,130 5,249,732 ------------------------------------------------------------------------------------------------------------------------------------ Virginia - 3.4% Virginia State, HDA, Commonwealth Mortgage Revenue Bonds, Series H, Sub-Series H-1, 5.375%, 7/01/36 (i) 6,010 5,779,216 ------------------------------------------------------------------------------------------------------------------------------------ Total Municipal Bonds Transferred to Tender Option Bond Trusts - 6.5% 11,028,948 ------------------------------------------------------------------------------------------------------------------------------------ Total Long-Term Investments (Cost - $188,409,569) - 100.5% 170,595,261 ------------------------------------------------------------------------------------------------------------------------------------ Short-Term Securities Shares ------------------------------------------------------------------------------------------------------------------------------------ Merrill Lynch Institutional Tax-Exempt Fund, 5.29% (j)(k) 2,900,000 2,900,000 ------------------------------------------------------------------------------------------------------------------------------------ Total Short-Term Securities (Cost - $2,900,000) - 1.7% 2,900,000 ------------------------------------------------------------------------------------------------------------------------------------ Total Investments (Cost - $191,309,569*) - 102.2% 173,495,261 Other Assets Less Liabilities - 1.4% 2,400,176 Liability for Trust Certificates, Including Interest Expense and Fees Payable - (3.6)% (6,109,650) -------------- Net Assets - 100.0% $ 169,785,787 ============== 7 BlackRock Apex Municipal Fund, Inc. Schedule of Investments September 30, 2008 (Unaudited) -------------------------------------------------------------------------------- * The cost and unrealized appreciation (depreciation) of investments as of September 30, 2008, as computed for federal income tax purposes, were as follows: Aggregate cost $ 185,232,104 ============= Gross unrealized appreciation $ 3,042,972 Gross unrealized depreciation (20,849,815) ------------- Net unrealized depreciation $ (17,806,843) ============= (a) AMBAC Insured. (b) U.S. government securities, held in escrow, are used to pay interest on this security, as well as to retire the bond in full at the date indicated, typically at a premium to par. (c) Non-income producing security. (d) Issuer filed for bankruptcy or is in default of interest payments. (e) Represents a zero coupon bond. Rate shown reflects the effective yield at the time of purchase. (f) ACA Insured. (g) Securities represent underlying bonds transferred to a separate securitization trust established in a tender option bond transaction in which the Fund may have acquired the residual interest certificates. These securities serve as collateral in a financing transaction. (h) Assured Guaranty Insured. (i) MBIA Insured. (j) Investments in companies considered to be an affiliate of the Fund, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, were as follows: -------------------------------------------------------------------- Affiliate Net Activity Income -------------------------------------------------------------------- Merrill Lynch Institutional Tax-Exempt Fund (1,605,074) $ 14,085 -------------------------------------------------------------------- (k) Represents the current yield as of report date. 8 BlackRock Apex Municipal Fund, Inc. Schedule of Investments September 30, 2008 (Unaudited) -------------------------------------------------------------------------------- o Effective July 1, 2008, the Fund adopted Financial Accounting Standards Board Statement of Financial Accounting Standards No. 157, "Fair Value Measurements" ("FAS 157"). FAS 157 clarifies the definition of fair value, establishes a framework for measuring fair values and requires additional disclosures about the use of fair value measurements. Various inputs are used in determining the fair value of investments, which are as follows: o Level 1 - price quotations in active markets/exchanges for identical securities o Level 2 - other observable inputs (including, but not limited to: quoted prices for similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks, and default rates) or other market-corroborated inputs) o Level 3 - unobservable inputs based on the best information available in the circumstance, to the extent observable inputs are not available (including the Fund's own assumption used in determining the fair value of investments) The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities. For information about the Fund's policy regarding valuation of investments and other significant accounting policies, please refer to the Fund's most recent financial statements as contained in its annual report. The following table summarizes the inputs used as of September 30, 2008 in determining the fair valuation of the Fund's investments: ----------------------------------------- Valuation Investments in Inputs Securities ----------------------------------------- Level 1 $ 2,900,000 Level 2 170,595,261 Level 3 -- ----------------------------------------- TOTAL $ 173,495,261 =============== 9 Item 2 - Controls and Procedures 2(a) - The registrant's principal executive and principal financial officers or persons performing similar functions have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the "1940 Act")) are effective as of a date within 90 days of the filing of this report based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act and Rule 13a-15(b) under the Securities Exchange Act of 1934, as amended. 2(b) - There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act) that occurred during the registrant's last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 3 - Exhibits Certifications - Attached hereto 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. BlackRock Apex Municipal Fund, Inc. By: /s/ Donald C. Burke -------------------------------- Donald C. Burke Chief Executive Officer of BlackRock Apex Municipal Fund, Inc. Date: November 24, 2008 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/ Donald C. Burke -------------------------------- Donald C. Burke Chief Executive Officer (principal executive officer) of BlackRock Apex Municipal Fund, Inc. Date: November 24, 2008 By: /s/ Neal J. Andrews -------------------------------- Neal J. Andrews Chief Financial Officer (principal financial officer) of BlackRock Apex Municipal Fund, Inc. Date: November 24, 2008