Item 1. Schedule of Investments: -------------------------------- Putnam Investment Grade Municipal Trust QUARTERLY PORTFOLIO HOLDINGS 2-28-05 Putnam Investment Grade Municipal Trust -------------------------------------------------------------------------------------------------------------------------------- The fund's portfolio February 28, 2005 (Unaudited) KEY TO ABBREVIATIONS AMBAC -- AMBAC Indemnity Corporation COP -- Certificate of Participation FGIC -- Financial Guaranty Insurance Company FNMA Coll. -- Federal National Mortgage Association Collateralized FSA -- Financial Security Assurance GNMA Coll. -- Government National Mortgage Association Collateralized G.O. Bonds -- General Obligation Bonds IFB -- Inverse Floating Rate Bonds MBIA -- MBIA Insurance Company PSFG -- Permanent School Fund Guaranteed U.S. Govt. Coll. -- U.S. Government Collateralized VRDN -- Variable Rate Demand Notes XLCA -- XL Capital Assurance Municipal bonds and notes (156.7%) (a) -------------------------------------------------------------------------------------------------------------------------------- Principal amount Rating (RAT) Value -------------------------------------------------------------------------------------------------------------------------------- Arizona (1.2%) -------------------------------------------------------------------------------------------------------------------------------- $500,000 AZ Hlth. Fac. Auth. Hosp. Syst. Rev. Bonds (John C. Lincoln Hlth. Network), 6 3/8s, 12/1/37 BBB $543,370 1,175,000 Casa Grande, Indl. Dev. Auth. Rev. Bonds (Casa Grande Regl. Med. Ctr.), Ser. A, 7 5/8s, 12/1/29 B-/P 1,250,999 1,000,000 Scottsdale, Indl. Dev. Auth. Hosp. Rev. Bonds (Scottsdale Hlth. Care), 5.8s, 12/1/31 A3 1,073,780 -------------------------------------------------------------------------------------------------------------------------------- 2,868,149 Arkansas (3.2%) -------------------------------------------------------------------------------------------------------------------------------- 2,530,000 AR Dev. Fin. Auth. Rev. Bonds, Ser. D, GNMA/FNMA Coll., 3s, 1/1/24 AAA 2,564,762 3,000,000 AR State Hosp. Dev. Fin. Auth. Rev. Bonds (Washington Regl. Med. Ctr.), 7 3/8s, 2/1/29 Baa3 3,356,490 1,000,000 Little Rock G.O. Bonds (Cap. Impt.), FSA, 3.95s, 4/1/19 Aaa 1,024,510 510,000 Northwest Regl. Arpt. Auth. Rev. Bonds, 7s, 2/1/10 BB/P 530,247 -------------------------------------------------------------------------------------------------------------------------------- 7,476,009 California (17.8%) -------------------------------------------------------------------------------------------------------------------------------- 4,000,000 Anaheim, Pub. Fin. Auth. Tax Alloc. Rev. Bonds, MBIA, 4.733s, 12/28/18 Aaa 4,438,000 2,500,000 CA Hlth. Fac. Auth. Rev. Bonds (Sutter Hlth.), Ser. A, MBIA, 5 3/8s, 8/15/30 Aaa 2,624,075 CA State G.O. Bonds 500,000 5 1/8s, 4/1/23 A 530,715 750,000 5.1s, 2/1/34 A 766,485 CA State Dept. of Wtr. Resources Rev. Bonds, Ser. A 1,500,000 6s, 5/1/15 A2 1,728,795 13,000,000 AMBAC, 5 1/2s, 5/1/13 (SEG) Aaa 14,699,745 1,500,000 5 1/2s, 5/1/11 A2 1,671,930 1,000,000 CA State Econ. Recvy. G.O. Bonds, Ser. A, 5s, 7/1/16 Aa3 1,060,530 2,000,000 CA State Econ. Recvy. VRDN, Ser. C-10, 1.86s, 7/1/23 VMIG1 2,000,000 1,750,000 CA Statewide Cmnty. Dev. Auth. COP (The Internext Group), 5 3/8s, 4/1/30 BBB- 1,757,560 1,475,000 Gilroy, Rev. Bonds (Bonfante Gardens Park), 8s, 11/1/25 D/P 1,055,481 Golden State Tobacco Securitization Corp. Rev. Bonds 1,000,000 Ser. 03 A-1, 6 1/4s, 6/1/33 BBB 1,022,480 1,500,000 Ser. B, 5 5/8s, 6/1/38 A- 1,623,645 450,000 Orange Cnty., Cmnty. Fac. Dist. Special Tax Rev. Bonds (No. 02-1 Ladera Ranch), Ser. A, 5.55s, 8/15/33 BBB/P 460,449 4,700,000 Riverside Cnty., Redev. Agcy. Tax Alloc., Ser. A, XLCA, 5s, 10/1/29 Aaa 4,848,943 1,400,000 Vallejo, COP (Marine World Foundation), 7.2s, 2/1/26 BBB-/P 1,468,054 -------------------------------------------------------------------------------------------------------------------------------- 41,756,887 Colorado (3.8%) -------------------------------------------------------------------------------------------------------------------------------- 2,500,000 CO Hlth. Fac. Auth. Rev. Bonds (Hlth. Fac.-Evangelical Lutheran), 3.35s, 10/1/06 A3 2,507,975 CO Springs, Hosp. Rev. Bonds 1,515,000 6 3/8s, 12/15/30 A3 1,674,711 1,485,000 6 3/8s, 12/15/30 (Prerefunded) A3 1,744,400 CO State Hsg. Fin. Auth. Rev. Bonds (Single Fam.) 190,000 Ser. B-2, 7s, 5/1/26 Aa2 195,299 100,000 Ser. B-3, 6.8s, 11/1/28 Aa2 100,520 2,500,000 Denver, City & Cnty. Arpt. Rev. Bonds, MBIA, 5 1/2s, 11/15/25 Aaa 2,638,475 -------------------------------------------------------------------------------------------------------------------------------- 8,861,380 Connecticut (3.4%) -------------------------------------------------------------------------------------------------------------------------------- 8,000,000 CT State Hlth. & Edl. Fac. Auth. VRDN, Ser. U, 1.74s, 7/1/33 VMIG1 8,000,000 Delaware (0.6%) -------------------------------------------------------------------------------------------------------------------------------- GMAC Muni. Mtge. Trust 144A sub. notes 500,000 Ser. A1-3, 5.3s, 10/31/39 A3 495,940 1,000,000 Ser. A1-2, 4.9s, 10/31/39 A3 989,330 -------------------------------------------------------------------------------------------------------------------------------- 1,485,270 District of Columbia (1.8%) -------------------------------------------------------------------------------------------------------------------------------- 4,000,000 DC G.O. Bonds, Ser. B, FSA, 5 1/4s, 6/1/26 Aaa 4,249,480 Florida (3.1%) -------------------------------------------------------------------------------------------------------------------------------- 1,500,000 Cap. Trust Agcy. Rev. Bonds (Seminole Tribe Convention), Ser. A, 10s, 10/1/33 B/P 1,710,225 2,395,000 Escambia Cnty., Hlth. Fac. Auth. Rev. Bonds (Baptist Hosp. & Baptist Manor), 5 1/8s, 10/1/19 A3 2,424,411 1,000,000 Lee Cnty., Indl. Dev. Auth. Rev. Bonds (Alliance Cmnty.), Ser. C, 5 1/2s, 11/15/29 BBB- 998,570 2,000,000 Miami Beach, Hlth. Fac. Auth. Hosp. Rev. Bonds (Mount Sinai Med. Ctr.), 5 3/8s, 11/15/28 BB 1,849,920 375,000 Okeechobee Cnty., Solid Waste Mandatory Put Bonds (Waste Management/Landfill), Ser. A, 4.2s, 7/1/09 BBB 379,721 -------------------------------------------------------------------------------------------------------------------------------- 7,362,847 Georgia (8.9%) -------------------------------------------------------------------------------------------------------------------------------- 1,500,000 Atlanta, Arpt. Rev. Bonds, Ser. B, FGIC, 5 5/8s, 1/1/30 Aaa 1,582,485 1,045,000 Atlanta, Waste Wtr. Rev. Bonds, Ser. A, FGIC, 5s, 11/1/38 Aaa 1,140,962 7,000,000 Atlanta, Waste Wtr. VRDN, Ser. C, FSA, 1.8s, 11/1/41 VMIG1 7,000,000 2,300,000 Burke Cnty., Poll. Control Dev. Auth. Mandatory Put Bonds (GA Power Co.), 4.45s, 12/1/08 A2 2,395,634 5,215,000 Cobb Cnty., Dev. Auth. U. Fac. Rev. Bonds (Kennesaw State U. Hsg.), Ser. A, MBIA, 5s, 7/15/29 Aaa 5,460,992 300,000 GA Med. Ctr. Hosp. Auth. IFB, MBIA, 10.574s, 8/1/10 Aaa 301,740 1,500,000 Muni. Elec. Auth. Rev. Bonds, AMBAC, 5s, 1/1/26 Aaa 1,593,705 1,280,000 Rockdale Cnty., Dev. Auth. Solid Waste Disp. Rev. Bonds (Visay Paper, Inc.), 7.4s, 1/1/16 B+/P 1,308,518 -------------------------------------------------------------------------------------------------------------------------------- 20,784,036 Illinois (8.8%) -------------------------------------------------------------------------------------------------------------------------------- 4,270,000 Chicago, G.O. Bonds, Ser. A, FSA, 5s, 1/1/27 Aaa 4,455,489 2,500,000 Chicago, Board of Ed. G.O. Bonds (School Reform), Ser. A, AMBAC, 5 1/4s, 12/1/27 Aaa 2,647,350 1,580,000 Cook Cnty., Cmnty. G.O. Bonds (Cons. School Dist. No. 64 Pk. Ridge), FSA, 5 1/2s, 12/1/16 Aaa 1,817,885 1,600,000 IL Dev. Fin. Auth. Rev. Bonds (Midwestern U.), Ser. B, 6s, 5/15/26 A- 1,746,960 2,500,000 IL Dev. Fin. Auth. Hosp. Rev. Bonds (Adventist Hlth. Syst./Sunbelt Obligation), 5.65s, 11/15/24 A 2,622,250 1,945,000 IL U. Rev. Bonds (Auxiliary Fac. Syst.), Ser. A, AMBAC, 5 1/4s, 4/1/19 Aaa 2,197,986 5,000,000 Schaumburg, G.O. Bonds, Ser. B, FGIC, 5s, 12/1/27 Aaa 5,235,350 -------------------------------------------------------------------------------------------------------------------------------- 20,723,270 Indiana (1.9%) -------------------------------------------------------------------------------------------------------------------------------- 800,000 IN Ed. Fac. Fin. Auth. VRDN, 1.8s, 7/1/32 VMIG1 800,000 2,600,000 IN State Dev. Fin. Auth. Env. Impt. Rev. Bonds (USX Corp.), 5.6s, 12/1/32 Baa1 2,687,100 1,000,000 Rockport, Poll. Control Rev. Bonds (Indiana-Michigan Pwr.), Ser. A, 4.9s, 6/1/25 Baa2 1,029,700 -------------------------------------------------------------------------------------------------------------------------------- 4,516,800 Iowa (0.9%) -------------------------------------------------------------------------------------------------------------------------------- 1,715,000 IA Fin. Auth. Hlth. Care Fac. Rev. Bonds (Care Initiatives), 9 1/4s, 7/1/25 BBB-/P 2,087,224 Louisiana (1.1%) -------------------------------------------------------------------------------------------------------------------------------- 1,500,000 Ernest N. Morial-New Orleans, Exhibit Hall Auth. Special Tax, Ser. A, AMBAC, 5 1/4s, 7/15/21 Aaa 1,627,695 740,000 LA Pub. Fac. Auth. Hosp. Rev. Bonds (Lake Charles Memorial Hosp.), 8 5/8s, 12/1/30 CCC/P 712,687 300,000 Tangipahoa Parish Hosp. Svcs. Rev. Bonds (North Oaks Med. Ctr.), Ser. A, 5s, 2/1/25 A 303,732 -------------------------------------------------------------------------------------------------------------------------------- 2,644,114 Maine (0.6%) -------------------------------------------------------------------------------------------------------------------------------- 1,415,000 ME State Hsg. Auth. Rev. Bonds, Ser. D-2-AMT, 5s, 11/15/27 Aa1 1,474,628 Massachusetts (12.3%) -------------------------------------------------------------------------------------------------------------------------------- 10,330,000 MA State G.O. Bonds, Ser. A, MBIA, 5 3/8s, 8/1/08 AAA 11,178,816 2,785,000 MA State Dev. Fin. Agcy. Rev. Bonds (MA Biomedical Research), Ser. C, 6 3/8s, 8/1/17 A1 3,111,931 8,400,000 MA State Hlth. & Edl. Fac. Auth. IFB (Med. Ctr. of Central MA), Ser. B, AMBAC, 11.37s, 6/23/22 Aaa 10,117,716 MA State Hlth. & Edl. Fac. Auth. Rev. Bonds 1,000,000 (Civic Investments), Ser. A, 9s, 12/15/15 BBB-/P 1,148,880 750,000 (Jordan Hosp.), Ser. E, 6 3/4s, 10/1/33 BBB- 793,418 2,500,000 MA State Hsg. Fin. Agcy. Rev. Bonds (Rental Mtge.), Ser. C, AMBAC, 5 5/8s, 7/1/40 Aaa 2,568,775 -------------------------------------------------------------------------------------------------------------------------------- 28,919,536 Michigan (4.9%) -------------------------------------------------------------------------------------------------------------------------------- 4,300,000 Detroit, Swr. Disp. VRDN, Ser. B, FSA, 1.8s, 7/1/33 VMIG1 4,300,000 1,400,000 Dickinson Cnty., Econ. Dev. Corp. Poll. Control Rev. Bonds (Intl. Paper Co.), Ser. A, 4.8s, 11/1/18 Baa2 1,418,284 300,000 Flint, Hosp. Bldg. Auth. Rev. Bonds (Hurley Med. Ctr.), 6s, 7/1/20 Baa3 308,475 MI State Hosp. Fin. Auth. Rev. Bonds 1,000,000 (Oakwood Hosp.), Ser. A, 5 3/4s, 4/1/32 A2 1,050,650 1,250,000 (Holland Cmnty. Hosp.), Ser. A, FGIC, 5 3/4s, 1/1/21 A2 1,355,125 1,650,000 MI State Strategic Fund, Ltd. Rev. Bonds (Detroit Edison Poll. Control), 5.65s, 9/1/29 A3 1,726,527 1,210,000 Saginaw Cnty., G.O. Bonds (Healthsource Saginaw, Inc.), MBIA, 5s, 5/1/26 Aaa 1,282,128 -------------------------------------------------------------------------------------------------------------------------------- 11,441,189 Minnesota (1.9%) -------------------------------------------------------------------------------------------------------------------------------- 2,500,000 Cohasset, Poll. Control Rev. Bonds (Allete, Inc.), 4.95s, 7/1/22 A 2,575,175 1,705,000 Minneapolis, Cmnty. Dev. Agcy. Supported Dev. Rev. Bonds, Ser. G-3, 5.45s, 12/1/31 A- 1,794,154 -------------------------------------------------------------------------------------------------------------------------------- 4,369,329 Mississippi (2.1%) -------------------------------------------------------------------------------------------------------------------------------- 525,000 Lowndes Cnty., Solid Waste Disp. & Poll. Control Rev. Bonds (Weyerhaeuser Co.), Ser. B, 6.7s, 4/1/22 Baa2 626,672 2,750,000 MS Bus. Fin. Corp. Poll. Control Rev. Bonds (Syst. Energy Resources, Inc.), 5 7/8s, 4/1/22 BBB- 2,763,558 1,385,000 MS Dev. Bk. Special Obligation Rev. Bonds (Jackson, MS), FSA, 5 1/4s, 3/1/21 Aaa 1,575,742 -------------------------------------------------------------------------------------------------------------------------------- 4,965,972 Missouri (1.7%) -------------------------------------------------------------------------------------------------------------------------------- 1,250,000 Cape Girardeau Cnty., Indl. Dev. Auth. Hlth. Care Fac. Rev. Bonds (St. Francis Med. Ctr.), Ser. A, 5 1/2s, 6/1/16 A 1,341,450 1,405,000 MO Hsg. Dev. Comm. Rev. Bonds (Home Ownership), GNMA/FNMA Coll., 5.55s, 9/1/34 AAA 1,534,667 1,000,000 MO State Hlth. & Edl. Fac. Auth. Rev. Bonds (BJC Hlth. Syst.), 5 1/4s, 5/15/32 Aa2 1,039,070 -------------------------------------------------------------------------------------------------------------------------------- 3,915,187 Montana (0.5%) -------------------------------------------------------------------------------------------------------------------------------- 1,175,000 Forsyth, Poll. Control Mandatory Put Bonds (Avista Corp.), AMBAC, 5s, 12/30/08 Aaa 1,240,976 Nevada (2.8%) -------------------------------------------------------------------------------------------------------------------------------- 5,105,000 Clark Cnty., Arpt. Rev. Bonds, Ser. A-2, FGIC, 5 1/8s, 7/1/26 Aaa 5,389,349 1,195,000 Henderson, Local Impt. Dist. Special Assmt. Bonds (No. T-14), 4 3/4s, 3/1/10 BB-/P 1,211,479 -------------------------------------------------------------------------------------------------------------------------------- 6,600,828 New Hampshire (0.4%) -------------------------------------------------------------------------------------------------------------------------------- 950,000 NH State Bus. Fin. Auth. Poll. Control Rev. Bonds, 3 1/2s, 7/1/27 Baa2 946,200 New Jersey (6.3%) -------------------------------------------------------------------------------------------------------------------------------- NJ Econ. Dev. Auth. Rev. Bonds 650,000 (Cedar Crest Vlg., Inc.), Ser. A, 7 1/4s, 11/15/31 BB-/P 690,385 1,750,000 (Cigarette Tax), 5 3/4s, 6/15/29 Baa2 1,839,740 5,000,000 (Motor Vehicle), Ser. A, MBIA, 5s, 7/1/27 Aaa 5,242,800 3,100,000 NJ State G.O. Bonds, Ser. F, MBIA, 5 1/2s, 8/1/11 AAA 3,481,579 NJ State Edl. Fac. Auth. Rev. Bonds 750,000 (Fairleigh Dickinson), Ser. C, 6s, 7/1/20 BBB-/F 814,628 1,000,000 (Drew U.), Ser. C, FGIC, 5 1/4s, 7/1/18 Aaa 1,138,110 Tobacco Settlement Fin. Corp. Rev. Bonds 500,000 6 3/4s, 6/1/39 BBB 524,050 1,000,000 (Asset Backed Bonds), 6s, 6/1/37 BBB 991,430 -------------------------------------------------------------------------------------------------------------------------------- 14,722,722 New Mexico (0.4%) -------------------------------------------------------------------------------------------------------------------------------- 1,000,000 Farmington, Poll. Control VRDN (AZ Pub. Service Co.), Ser. B, 1.8s, 9/1/24 VMIG1 1,000,000 New York (14.4%) -------------------------------------------------------------------------------------------------------------------------------- 7,780,000 NY City, G.O. Bonds, Ser. B, 5 1/4s, 12/1/09 A2 8,437,254 2,000,000 NY City, Indl. Dev. Agcy. Rev. Bonds (Brooklyn Navy Yard Cogen. Partners), Ser. G, 5 3/4s, 10/1/36 BBB- 1,948,780 750,000 NY City, Indl. Dev. Agcy. Special Fac. Rev. Bonds (British Airways), 5 1/4s, 12/1/32 BB+ 625,133 NY City, Muni. Wtr. & Swr. Fin. Auth. Rev. Bonds 2,810,000 Ser. B, 5 3/4s, 6/15/26 AA+ 3,018,362 1,290,000 Ser. B, 5 3/4s, 6/15/26 (Prerefunded) AA+ 1,395,522 2,000,000 NY State Energy Research & Dev. Auth. Gas Fac. Rev. Bonds (Brooklyn Union Gas), 6.952s, 7/1/26 A+ 2,142,580 4,000,000 NY State Env. Fac. Corp. Rev. Bonds, 5s, 6/15/32 Aaa 4,170,480 10,500,000 Port. Auth. NY & NJ Special Obligation Rev. Bonds (JFK Intl. Air Term. - 6), MBIA, 5.9s, 12/1/17 Aaa 11,410,770 650,000 Suffolk Cnty., Indl. Dev. Agcy. Rev. Bonds (Peconic Landing), Ser. A, 8s, 10/1/30 B+/P 697,424 -------------------------------------------------------------------------------------------------------------------------------- 33,846,305 North Carolina (3.1%) -------------------------------------------------------------------------------------------------------------------------------- NC Eastern Muni. Pwr. Agcy. Syst. Rev. Bonds 1,000,000 Ser. D, 6 3/4s, 1/1/26 Baa2 1,117,560 2,000,000 Ser. A, 5 3/4s, 1/1/26 Baa2 2,119,140 3,500,000 NC State Muni. Pwr. Agcy. Rev. Bonds (No. 1, Catawba Elec.), Ser. B, 6 1/2s, 1/1/20 A3 3,953,775 -------------------------------------------------------------------------------------------------------------------------------- 7,190,475 Ohio (2.5%) -------------------------------------------------------------------------------------------------------------------------------- 1,000,000 Brookville, Local School Dist. G.O. Bonds, FSA, 5s, 12/1/31 Aaa 1,040,150 2,000,000 OH State Air Quality Dev. Auth. Rev. Bonds (Toledo Poll. Control), Ser. A, 6.1s, 8/1/27 Baa2 2,088,560 2,500,000 Rickenbacker, Port Auth. Rev. Bonds (OASBO Expanded Asset Pooled), Ser. A, 5 3/8s, 1/1/32 A2 2,683,850 -------------------------------------------------------------------------------------------------------------------------------- 5,812,560 Oklahoma (0.5%) -------------------------------------------------------------------------------------------------------------------------------- 1,050,000 OK Dev. Fin. Auth. Rev. Bonds (Hillcrest Hlth. Care Syst.), Ser. A, U.S. Govt. Coll., 5 5/8s, 8/15/29 AAA 1,166,697 Oregon (0.5%) -------------------------------------------------------------------------------------------------------------------------------- 1,000,000 OR State Hsg. & Cmnty. Svcs. Dept. Rev. Bonds (Single Family Mtg.), Ser. K, 5 5/8s, 7/1/29 Aa2 1,062,930 Pennsylvania (5.4%) -------------------------------------------------------------------------------------------------------------------------------- 1,110,000 Carbon Cnty., Indl. Dev. Auth. Rev. Bonds (Panther Creek Partners), 6.65s, 5/1/10 BBB- 1,192,873 1,500,000 Lancaster Cnty., Hosp. Auth. Rev. Bonds (Gen. Hosp.), 5 1/2s, 3/15/26 A 1,573,860 1,000,000 Lehigh Cnty., Gen. Purpose Auth. Rev. Bonds (Lehigh Valley Hosp. Hlth. Network), Ser. A, 5 1/4s, 7/1/32 A2 1,024,770 1,000,000 PA Econ. Dev. Fin. Auth. Rev. Bonds (Amtrak), Ser. A, 6 3/8s, 11/1/41 A3 1,039,140 PA State Econ. Dev. Fin. Auth. Resource Recvy. Rev. Bonds 750,000 (Colver), Ser. E, 8.05s, 12/1/15 BBB-/P 770,235 750,000 (Northampton Generating), Ser. A, 6.6s, 1/1/19 BBB- 757,493 1,045,000 PA State Higher Edl. Fac. Auth. Rev. Bonds (Philadelphia College of Osteopathic Med.), 5s, 12/1/08 A 1,104,022 5,000,000 Philadelphia, School Dist. G.O. Bonds, Ser. D, FGIC, 5s, 6/1/27 Aaa 5,256,550 -------------------------------------------------------------------------------------------------------------------------------- 12,718,943 Puerto Rico (2.5%) -------------------------------------------------------------------------------------------------------------------------------- 5,000,000 Cmnwlth. of PR, Hwy. & Trans. Auth. Rev. Bonds, Ser. B, 6s, 7/1/39 A 5,757,250 South Carolina (2.8%) -------------------------------------------------------------------------------------------------------------------------------- 2,515,000 Florence Cnty., Hosp. Rev. Bonds (McLeod Regl. Med. Ctr.), Ser. A, FSA, 5 1/4s, 11/1/23 Aaa 2,754,177 1,000,000 SC Hosp. Auth. Rev. Bonds (Med. U.), Ser. A, 6 1/2s, 8/15/32 Aaa 1,196,670 600,000 SC Jobs Econ. Dev. Auth. Hosp. Fac. Rev. Bonds (Palmetto Hlth. Alliance), Ser. A, 7 3/8s, 12/15/21 Baa2 728,784 1,750,000 SC Tobacco Settlement Rev. Mgt. Rev. Bonds, Ser. B, 6 3/8s, 5/15/28 BBB 1,787,713 -------------------------------------------------------------------------------------------------------------------------------- 6,467,344 South Dakota (0.9%) -------------------------------------------------------------------------------------------------------------------------------- 2,000,000 SD Edl. Enhancement Funding Corp. Rev. Bonds, Ser. B, 6 1/2s, 6/1/32 BBB 2,051,000 Tennessee (4.9%) -------------------------------------------------------------------------------------------------------------------------------- Johnson City, Hlth. & Edl. Fac. Board Hosp. Rev. Bonds (Mountain States Hlth.) 3,000,000 Ser. A, 7 1/2s, 7/1/25 BBB+ 3,550,500 7,000,000 Ser. A, MBIA, 6s, 7/1/21 Aaa 7,822,010 -------------------------------------------------------------------------------------------------------------------------------- 11,372,510 Texas (9.2%) -------------------------------------------------------------------------------------------------------------------------------- 2,500,000 Alliance, Arpt. Auth. Rev. Bonds (Federal Express Corp.), 6 3/8s, 4/1/21 Baa2 2,637,175 4,525,000 Columbus, Indpt. School Dist. G.O. Bonds, PSFG, 5 1/8s, 8/15/29 Aaa 4,765,594 500,000 Comal Cnty., Hlth. Fac. Dev. Corp. Rev. Bonds (Hlth. Care Syst. - McKenna Memorial), Ser. A, 6 1/4s, 2/1/32 Baa2 517,285 2,905,000 Conroe, Indpt. School Dist. G.O. Bonds (School House), PSFG, 5s, 2/15/26 Aaa 3,039,298 1,135,000 Dallas-Fort Worth, Intl. Arpt. Fac. Impt. Corp. Rev. Bonds (American Airlines, Inc.), 6 3/8s, 5/1/35 Caa2 712,973 750,000 Gateway, Pub. Fac. Corp. Rev. Bonds (Stonegate Villas Apt.), FNMA Coll., 4.55s, 7/1/34 Aaa 774,143 1,250,000 Gulf Coast, Waste Disp. Auth. Rev. Bonds, Ser. A, 6.1s, 8/1/24 Baa2 1,326,275 1,500,000 Harris Cnty., Hlth. Fac. Rev. Bonds (Memorial Hermann Hlth. Care), Ser. A, 6 3/8s, 6/1/29 A2 1,660,275 1,335,000 Montgomery Cnty., G.O. Bonds (Library), Ser. B, AMBAC, 5s, 3/1/26 Aaa 1,391,230 1,500,000 Sam Rayburn Muni. Pwr. Agcy. Rev. Bonds, 6s, 10/1/21 Baa2 1,616,115 1,360,000 Socorro, Indpt. School Dist. G.O. Bonds, PSFG, 5s, 8/15/29 Aaa 1,413,965 1,700,000 Tomball, Hosp. Auth. Rev. Bonds (Tomball Regl. Hosp.), 6s, 7/1/19 Baa3 1,736,567 -------------------------------------------------------------------------------------------------------------------------------- 21,590,895 Utah (7.0%) -------------------------------------------------------------------------------------------------------------------------------- 1,000,000 Carbon Cnty., Solid Waste Disp. Rev. Bonds (Laidlaw Env.), Ser. A, 7.45s, 7/1/17 BB-/P 1,035,360 500,000 Tooele Cnty., Harbor & Term. Dist. Port Fac. Rev. Bonds (Union Pacific), Ser. A, 5.7s, 11/1/26 Baa2 519,655 675,000 UT Cnty., Env. Impt. Rev. Bonds (Marathon Oil), 5.05s, 11/1/17 Baa1 729,601 UT State Pwr. Supply Rev. Bonds (Intermountain Pwr. Agcy.), Ser. A, MBIA 4,720,000 6.15s, 7/1/14 Aaa 5,028,310 8,280,000 6.15s, 7/1/14 (Prerefunded) Aaa 8,965,832 -------------------------------------------------------------------------------------------------------------------------------- 16,278,758 Vermont (0.4%) -------------------------------------------------------------------------------------------------------------------------------- 1,000,000 VT Hsg. Fin. Agcy. Rev. Bonds, Ser. 19A, FSA, 4.62s, 5/1/29 Aaa 1,015,350 Virginia (0.9%) -------------------------------------------------------------------------------------------------------------------------------- 2,000,000 Prince William Cnty., Indl. Dev. Auth. Hosp. Rev. Bonds (Potomac Hosp. Corp.), 5.35s, 10/1/36 A3 2,068,520 Washington (1.1%) -------------------------------------------------------------------------------------------------------------------------------- 2,420,000 Tobacco Settlement Auth. of WA Rev. Bonds, 6 1/2s, 6/1/26 BBB 2,513,436 West Virginia (6.7%) -------------------------------------------------------------------------------------------------------------------------------- 7,500,000 Econ. Dev. Auth. Lease Rev. Bonds (Correctional Juvenile Safety), Ser. A, MBIA, 5s, 6/1/29 Aaa 7,832,475 1,545,000 Marshall Cnty., Poll. Control VRDN (OH Pwr. Co.), Ser. E, 1.82s, 6/1/22 VMIG1 1,545,000 6,000,000 West Virginia U. Rev. Bonds (Impt. West VA. U.), Ser. C, FGIC, 5s, 10/1/26 Aaa 6,317,040 -------------------------------------------------------------------------------------------------------------------------------- 15,694,515 Wisconsin (3.5%) -------------------------------------------------------------------------------------------------------------------------------- Badger Tobacco Settlement Asset Securitization Corp. Rev. Bonds 1,800,000 7s, 6/1/28 BBB 1,909,692 3,500,000 6 3/8s, 6/1/32 BBB 3,561,425 2,500,000 WI State Hlth. & Edl. Fac. Auth. Rev. Bonds (Wheaton Franciscan), 5 3/4s, 8/15/30 A2 2,650,275 -------------------------------------------------------------------------------------------------------------------------------- 8,121,392 -------------------------------------------------------------------------------------------------------------------------------- Total Investments (cost $349,150,124) (b) $367,140,913 ================================================================================================================================ Putnam Investment Grade Municipal Trust Futures contracts outstanding at February 28, 2005 (Unaudited) Unrealized Aggregate Expiration appreciation/ Number of contracts Value face value date (depreciation) ----------------------------------------------------------------------------------------------------------------- 74 U.S. Treasury Bond (Long) $8,313,438 $8,373,675 Jun-05 $(60,237) 186 U.S. Treasury Note 5yr (Short) 20,009,531 20,134,786 Jun-05 125,255 ----------------------------------------------------------------------------------------------------------------- $65,018 ----------------------------------------------------------------------------------------------------------------- NOTES (a) Percentages indicated are based on net assets of $234,279,885. (RAT) The Moody's, Standard & Poor's or Fitch ratings indicated are believed to be the most recent ratings available at February 28, 2005 for the securities listed. Ratings are generally ascribed to securities at the time of issuance. While the agencies may from time to time revise such ratings, they undertake no obligation to do so, and the ratings do not necessarily represent what the agencies would ascribe to these securities at February 28, 2005. Securities rated by Putnam are indicated by "/P". Security ratings are defined in the Statement of Additional Information. (b) The aggregate identified cost on a tax basis is $349,150,124, resulting in gross unrealized appreciation and depreciation of $19,067,033 and $1,076,244, respectively, or net unrealized appreciation of $17,990,789. (SEG) A portion of this security was pledged and segregated with the custodian to cover margin requirements for futures contracts at February 28, 2005. 144A after the name of a security represents those exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers. The rates shown on VRDN and Mandatory Put Bonds are the current interest rates at February 28, 2005. The dates shown on Mandatory Put Bonds are the next mandatory put dates. The rates shown on IFB, which are securities paying interest rates that vary inversely to changes in the market interest rates, are the current interest rates at February 28, 2005. The fund had the following industry group concentrations greater than 10% at February 28, 2005 (as a percentage of market value): Health care 20.7% Utilities and power 17.1 The fund had the following insurance concentrations greater than 10% at February 28, 2005 (as a percentage of market value): MBIA 17.4% AMBAC 10.4 Security valuation Tax-exempt bonds and notes are valued at fair value on the basis of valuations provided by an independent pricing service, approved by the Trustees. Such services use information with respect to transactions in bonds, quotations from bond dealers, market transactions in comparable securities and various relationships between securities in determining value. Other investments are valued at fair value following procedures approved by the Trustees. Such valuations and procedures are reviewed periodically by the Trustees. Futures and options contracts The fund may use futures and options contracts to hedge against changes in the values of securities the fund owns or expects to purchase. The fund may also write options on securities it owns or in which it may invest to increase its current returns. The potential risk to the fund is that the change in value of futures and options contracts may not correspond to the change in value of the hedged instruments. In addition, losses may arise from changes in the value of the underlying instruments, if there is an illiquid secondary market for the contracts, or if the counterparty to the contract is unable to perform. Risks may exceed amounts recognized on the statement of assets and liabilities. When the contract is closed, the fund records a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. Realized gains and losses on purchased options are included in realized gains and losses on investment securities. If a written call option is exercised, the premium originally received is recorded as an addition to sales proceeds. If a written put option is exercised, the premium originally received is recorded as a reduction to cost of investments. Futures contracts are valued at the quoted daily settlement prices established by the exchange on which they trade. The fund and the broker agree to exchange an amount of cash equal to the daily fluctuation in the value of the futures contract. Such receipts or payments are known as "variation margin." Exchange-traded options are valued at the last sale price, or if no sales are reported, the last bid price for purchased options and the last ask price for written options. Options traded over-the-counter are valued using prices supplied by dealers. Futures and written option contracts outstanding at period end, if any, are listed after the fund's portfolio. For additional information regarding the fund please see the fund's most recent annual or semiannual shareholder report filed on the Securities and Exchange Commission's Web site, www.sec.gov, or visit Putnam's Individual Investor Web site at www.putnaminvestments.com Item 2. Controls and Procedures: -------------------------------- (a) The registrant's principal executive officer and principal financial officer have concluded, based on their evaluation of the effectiveness of the design and operation of the registrant's disclosure controls and procedures as of a date within 90 days of the filing date of this report, that the design and operation of such procedures are generally effective to provide reasonable assurance that information required to be disclosed by the registrant in this report is recorded, processed, summarized and reported within the time periods specified in the Commission's rules and forms. (b) Changes in internal control over financial reporting: Not applicable Item 3. Exhibits: ------------------ A separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2 under the Investment Company Act of 1940, as amended, are filed herewith. 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. NAME OF REGISTRANT By (Signature and Title): /s/ Michael T. Healy -------------------------- Michael T. Healy Principal Accounting Officer Date: April 27, 2005 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 (Signature and Title): /s/ Charles E. Porter --------------------------- Charles E. Porter Principal Executive Officer Date: April 27, 2005 By (Signature and Title): /s/ Steven D. Krichmar --------------------------- Steven D. Krichmar Principal Financial Officer Date: April 27, 2005