UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number 811-21131 John Hancock Preferred Income Fund (Exact name of registrant as specified in charter) 101 Huntington Avenue, Boston, Massachusetts 02199 (Address of principal executive offices) (Zip code) Alfred E. Ouellette, Attorney and Assistant Secretary 101 Huntington Avenue Boston, Massachusetts 02199 (Name and address of agent for service) Registrant's telephone number, including area code: 617-375-1702 Date of fiscal year end: July 31 Date of reporting period: April 30, 2005 ITEM 1. SCHEDULE OF INVESTMENTS JOHN HANCOCK Preferred Income Fund 4.30.2005 Quarterly Portfolio Holdings [A 2" x 1" John Hancock (Signature)/John Hancock Funds logo in lower, center middle of page. A tag line below reads "JOHN HANCOCK FUNDS."] John Hancock Preferred Income Fund Securities owned by the Fund on April 30, 2005 (unaudited) Interest Maturity Credit Par value Issuer, description rate (%) date rating (A) ($000) Value --------------------------------------------------------------------------------------------------------------------------------- Bonds 1.86% $17,041,113 (Cost $16,596,798) Consumer Finance 0.22% 2,010,728 Capital One Bank, Sr Note 8.250 06-15-2005 BBB 2,000 2,010,728 Electric Utilities 1.64% 15,030,385 Black Hills Corp., Note 6.500 05-15-2013 BBB- 5,950 6,252,998 Entergy Gulf States, Inc., 1st Mtg Bond 6.200 07-01-2033 BBB+ 5,000 5,111,055 Midland Funding Corp. II, Lease Oblig Bond, Ser A 11.750 07-23-2005 BB- 3,613 3,666,332 Credit Par value Issuer, description, maturity date rating (A) ($000) Value --------------------------------------------------------------------------------------------------------------------------------- Capital preferred securities 7.70% $70,753,956 (Cost $62,701,863) Diversified Banks 0.85% 7,759,500 Lloyds TSB Bank Plc, 6.90% 11-29-49 (United Kingdom) A+ 7,500 7,759,500 Electric Utilities 3.02% 27,740,712 DPL Capital Trust II, 8.125%, 09-01-31 B+ 24,000 27,740,712 Gas Utilities 2.35% 21,629,639 KN Capital Trust I, 8.56%, Ser B, 04-15-27 BB+ 11,500 12,631,175 KN Capital Trust III, 7.63%, 04-15-28 BB+ 8,000 8,998,464 Integrated Telecommunication Services 0.70% 6,440,396 TCI Communications Financing Trust III, 9.65%, 03-31-27 BB+ 5,700 6,440,396 Regional Banks 0.78% 7,183,709 Summit Capital Trust I, 8.40%, Ser B, 03-15-27 A 6,500 7,183,709 Issuer Shares Value --------------------------------------------------------------------------------------------------------------------------------- Common stocks 4.28% $39,326,031 (Cost $38,253,050) Electric Utilities 2.50% 22,962,255 Alliant Energy Corp. 236,100 6,218,874 Cinergy Corp. 323,378 12,805,769 Scottish Power Plc, American Depositary Receipt (United Kingdom) 121,344 3,937,612 Gas Utilities 0.95% 8,712,000 Peoples Energy Corp. 220,000 8,712,000 Multi-Utilities & Unregulated Power 0.83% 7,651,776 Duke Energy Corp. 40,215 1,173,876 TECO Energy, Inc. 390,000 6,477,900 Credit Issuer, description rating (A) Shares Value --------------------------------------------------------------------------------------------------------------------------------- Preferred stocks 85.23% $782,855,855 (Cost $759,958,661) Agricultural Products 1.33% 12,195,226 Ocean Spray Cranberries, Inc., 6.25%, Ser A (S) BB+ 143,000 12,195,226 Asset Management & Custody Banks 0.11% 978,000 BNY Capital V, 5.95%, Ser F A- 40,000 978,000 Automobile Manufacturers 2.05% 18,869,227 Ford Motor Co., 7.50% BB+ 50,000 1,094,500 General Motors Corp., 7.25%, Ser 04-15-41 BB 378,700 7,028,672 General Motors Corp., 7.25%, Ser 07-15-41 BB 89,000 1,655,400 General Motors Corp., 7.25%, Ser 02-15-52 BB 254,300 4,615,545 General Motors Corp., 7.375%, Ser 05-15-48 Baa3 90,000 1,660,500 General Motors Corp., 7.375%, Ser 10-01-51 BB 149,000 2,814,610 Broadcasting & Cable TV 1.80% 16,554,377 Shaw Communications, Inc., 8.50% (Canada) B+ 655,100 16,554,377 Consumer Finance 3.05% 27,992,735 Ford Motor Credit Co., 7.60% A3 315,600 7,085,220 Household Finance Corp., 6.00% A 214,200 5,342,148 Household Finance Corp., 6.875% A 399,800 10,414,790 SLM Corp., 6.00% A 207,100 5,150,577 Diversified Banks 8.07% 74,126,614 BAC Capital Trust IV, 5.875% A 181,150 4,420,060 Bank One Capital Trust V, 8.00% A- 20,500 528,900 Bank One Capital Trust VI, 7.20% A- 55,500 1,429,680 Comerica Capital Trust I, 7.60% BBB+ 171,400 4,418,692 Fleet Capital Trust VII, 7.20% A 322,500 8,352,750 Fleet Capital Trust VIII, 7.20% A 464,750 12,208,983 Royal Bank of Scotland Group Plc, 5.75%, Ser L (United Kingdom) A 550,900 13,381,361 Santander Finance Preferred S.A. Unipersonal, 6.41%, Ser 1 (Spain) BBB+ 225,000 5,711,400 USB Capital III, 7.75% A- 327,100 8,383,573 USB Capital IV, 7.35% A- 165,700 4,258,490 USB Capital V, 7.25% A- 103,599 2,685,286 Wachovia Preferred Funding Corp., 7.25%, Ser A A- 69,000 1,952,700 Wells Fargo Capital Trust IV, 7.00% A 91,100 2,356,757 Wells Fargo Capital Trust VI, 6.95% A- 53,400 1,387,332 Wells Fargo Capital Trust VII, 5.85% A 107,750 2,650,650 Electric Utilities 19.61% 180,073,285 Ameren Corp., 9.75%, Conv BBB+ 480,000 13,483,200 American Electric Power Co., Inc., 9.25%, Conv BBB 200,000 8,846,000 Boston Edison Co., 4.78% BBB+ 15,143 1,396,942 Entergy Mississippi, Inc., 7.25% A- 346,000 9,117,100 FPC Capital I, 7.10%, Ser A BB+ 729,791 18,478,308 FPL Group Capital Trust I, 5.875% BBB+ 493,300 12,209,175 FPL Group, Inc., 8.00%, Conv A- 120,000 7,486,800 Georgia Power Capital Trust VII, 5.875% BBB+ 250,600 6,152,230 Georgia Power Co., 6.00%, Ser R A 393,197 9,908,564 Great Plains Energy, Inc., 8.00%, Conv BBB- 725,600 19,409,800 HECO Capital Trust III, 6.50% BBB- 375,400 9,895,544 Interstate Power & Light Co., 8.375%, Ser B BBB- 700,000 23,800,000 Monongahela Power Co., $7.73, Ser L B 45,000 4,488,750 Northern States Power Co., 8.00% BBB- 235,000 6,283,900 Pennsylvania Power Co., 7.75% BB 91,700 9,278,894 Southern Co. Capital Trust VI, 7.125% BBB+ 49,800 1,307,748 TXU Corp., 8.125%, Conv Ba1 79,800 5,665,002 Virginia Power Capital Trust, 7.375% BBB- 494,250 12,865,328 Gas Utilities 5.36% 49,265,305 El Paso Tennessee Pipeline Co., 8.25%, Ser A CCC- 231,500 11,575,000 KeySpan Corp., 8.75%, Conv A 335,000 17,095,050 SEMCO Capital Trust I, 10.25% B- 303,446 7,671,115 Southern Union Co., 5.00%, Conv BBB 30,000 1,504,500 Southern Union Co., 5.75%, Conv Baa3 12,000 845,400 Southwest Gas Capital II, 7.70% BB 362,100 9,733,248 TransCanada Pipelines Ltd., 8.25% (Canada) BBB 32,800 840,992 Hotels, Resorts & Cruise Lines 0.33% 3,045,799 Hilton Hotels Corp., 8.00% BBB- 118,100 3,045,799 Integrated Oil & Gas 0.31% 2,869,260 Coastal Finance I, 8.375% CCC- 116,400 2,869,260 Integrated Telecommunication Services 2.84% 26,042,703 Telephone & Data Systems, Inc., 6.625% A- 160,000 3,955,200 Telephone & Data Systems, Inc., 7.60%, Ser A A- 690,687 17,819,725 Verizon New England, Inc., 7.00%, Ser B A2 166,450 4,267,778 Investment Banking & Brokerage 5.96% 54,692,643 Bear Stearns Capital Trust III, 7.80% BBB 40,600 1,045,044 Bear Stearns Cos., Inc. (The), 5.72%, Depositary Shares, Ser F BBB 20,000 1,022,000 Lehman Brothers Holdings Capital Trust V, 6.00%, Ser M BBB+ 70,000 1,722,000 Lehman Brothers Holdings, Inc., 5.94%, Depositary Shares, Ser C BBB+ 175,600 9,069,740 Merrill Lynch Preferred Capital Trust III, 7.00% A- 330,500 8,616,135 Merrill Lynch Preferred Capital Trust IV, 7.12% A- 241,152 6,351,944 Merrill Lynch Preferred Capital Trust V, 7.28% A- 367,000 9,721,830 Morgan Stanley Capital Trust II, 7.25% A- 240,200 6,139,512 Morgan Stanley Capital Trust III, 6.25% A- 60,400 1,505,168 Morgan Stanley Capital Trust IV, 6.25% A- 57,000 1,414,170 Morgan Stanley Capital Trust V, 5.75% A1 347,000 8,085,100 Life & Health Insurance 1.56% 14,365,180 Lincoln National Capital VI, 6.75%, Ser F BBB 143,200 3,687,400 PLC Capital Trust IV, 7.25% BBB+ 186,600 4,907,580 PLC Capital Trust V, 6.125% BBB+ 236,000 5,770,200 Multi-Line Insurance 2.26% 20,746,558 ING Groep N.V., 6.20% (Netherlands) A- 94,193 2,363,302 ING Groep N.V., 7.05% (Netherlands) A- 703,800 18,383,256 Multi-Utilities & Unregulated Power 12.17% 111,782,572 Aquila, Inc., 7.875% B2 511,700 12,086,354 Baltimore Gas & Electric Co., 6.99%, Ser 1995 Baa1 40,000 4,190,000 BGE Capital Trust II, 6.20% BBB- 623,825 15,807,725 Consumers Energy Co. Financing IV, 9.00% Ba2 117,600 3,063,480 Dominion CNG Capital Trust I, 7.80% BBB- 253,476 6,547,285 DTE Energy Co., 8.75%, Conv BBB- 220,000 5,592,400 DTE Energy Trust I, 7.80% BB+ 135,100 3,499,090 Energy East Capital Trust I, 8.25% BBB- 447,200 11,600,368 Enterprise Capital Trust I, 7.44%, Ser A BB+ 392,200 9,867,752 Enterprise Capital Trust III, 7.25%, Ser C BB+ 210,600 5,300,802 ONEOK, Inc., 8.50%, Conv BBB+ 31,000 1,091,510 PSEG Funding Trust II, 8.75% BB+ 233,000 6,314,300 Public Service Electric & Gas Co., 4.18%, Ser B BB+ 7,900 624,890 Public Service Enterprise Group, Inc., 10.25%, Conv BBB- 155,450 11,503,300 Puget Sound Energy Capital Trust II, 8.40% BB 103,900 2,699,322 TECO Capital Trust I, 8.50% B 469,800 11,993,994 Oil & Gas Exploration & Production 3.20% 29,393,074 Nexen, Inc., 7.35% (Canada) BB+ 1,127,900 29,393,074 Other Diversified Financial Services 7.56% 69,427,364 ABN AMRO Capital Funding Trust V, 5.90% A 626,100 15,182,925 ABN AMRO Capital Funding Trust VII, 6.08% A 328,000 8,160,640 Citigroup Capital VII, 7.125% A 98,700 2,566,200 Citigroup Capital VIII, 6.95% A 214,600 5,517,366 Citigroup Capital IX, 6.00% A 217,000 5,396,790 Citigroup Capital X, 6.10% A 100,000 2,502,000 Citigroup Capital XI, 6.00% A 25,000 620,000 General Electric Capital Corp., 5.875% AAA 151,500 3,834,465 General Electric Capital Corp., 6.10% AAA 51,210 1,307,391 J.P. Morgan Chase Capital IX, 7.50%, Ser I A- 61,000 1,567,700 J.P. Morgan Chase Capital X, 7.00%, Ser J A1 607,100 15,778,529 J.P. Morgan Chase Capital XI, 5.875%, Ser K A- 289,700 6,993,358 Real Estate Investment Trusts 4.48% 41,139,176 Duke Realty Corp., 6.50%, Depositary Shares, Ser K BBB 110,000 2,728,000 Duke Realty Corp., 6.60%, Depositary Shares, Ser L BBB 109,840 2,741,606 Duke Realty Corp., 6.625%, Depositary Shares, Ser J BBB 59,925 1,496,327 Duke Realty Corp., 7.99%, Depositary Shares, Ser B BBB 251,830 13,118,782 Public Storage, Inc., 6.45%, Depositary Shares, Ser X BBB+ 25,000 613,750 Public Storage, Inc., 6.50%, Depositary Shares, Ser W BBB+ 100,000 2,499,000 Public Storage, Inc., 7.50%, Depositary Shares, Ser V BBB+ 497,643 12,933,742 Public Storage, Inc., 8.00%, Depositary Shares, Ser R BBB+ 157,965 4,111,829 Public Storage, Inc., 8.60%, Depositary Shares, Ser Q BBB+ 34,600 896,140 Regional Banks 0.94% 8,674,376 National Commerce Capital Trust II, 7.70% A- 80,300 2,100,648 PFGI Capital Corp., 7.75% A3 200,000 5,362,500 Regions Financing Trust I, 8.00% BBB+ 46,856 1,211,228 Reinsurance 0.38% 3,505,990 RenaissanceRe Holdings Ltd., 6.08%, Ser C (Bermuda) BBB+ 153,100 3,505,990 Thrifts & Mortgage Finance 1.27% 11,676,097 Abbey National Plc, 7.25% (United Kingdom) A- 73,580 1,878,497 Abbey National Plc, 7.375% (United Kingdom) A- 370,000 9,797,600 Wireless Telecommunication Services 0.59% 5,440,294 United States Cellular, 7.50% A- 205,760 5,440,294 Interest Maturity Credit Par value Issuer, description rate (%) date rating (A) ($000) Value --------------------------------------------------------------------------------------------------------------------------------- Short-term investments 0.93% $8,500,000 (Cost $8,498,725) Government U.S. Agency 0.93% 8,500,000 Federal Home Loan Bank, Disc Note 2.70 05-02-2005 AAA 8,500 8,500,000 Total investments 100.00% $918,476,955 John Hancock Preferred Income Fund Financial futures contracts April 30, 2005 (unaudited) Number of Open contracts contracts Position Expiration (Depreciation) ---------------------------------------------------------------------------------------------------------- U.S. 10-year Treasury Note 700 Short June 05 ($453,341) U.S. 10-year Treasury Note 140 Short June 05 ($287,543) John Hancock Preferred Income Fund Interest rate swap contracts April 30, 2005 (unaudited) --------------------------------------------------------------------------------------------------------- Rate type -------------------------------------------------- Notional Payments made Payments received Termination amount by Fund by Fund date Appreciation $70,000,000 2.56%(a) 3-month LIBOR June 08 $3,264,563 (a) Fixed rate John Hancock Preferred Income Fund Footnotes to Schedule of Investments April 30, 2005 (unaudited) (A) Credit ratings are unaudited and are rated by Moody's Investors Service where Standard & Poor's ratings are not available. (S) This security is exempt from registration under Rule 144A of the Securities Act of 1933. Such securities may be resold, normally to qualified institutional buyers, in transactions exempt from registration. Rule 144A securities amounted to $12,195,226 or 1.33% of the Fund's total investments as of April 30, 2005. Parenthetical disclosure of a foreign country in the security description represents country of a foreign issuer. The percentage shown for each investment category is the total value of that category as a percentage of the total investments of the Fund. The cost of investments owned on April 30, 2005, including short-term investments, was $886,009,097. Gross unrealized appreciation and depreciation of investments aggregated $46,454,386 and $13,986,528, respectively, resulting in net unrealized appreciation of $32,467,858. For more information Trustees Charles L. Ladner, Chairman* James F. Carlin Richard P. Chapman, Jr.* William H. Cunningham Ronald R. Dion Dr. John A. Moore* Patti McGill Peterson* Steven R. Pruchansky James A. Shepherdson Lt. Gen. Norman H. Smith, USMC (Ret.) *Members of the Audit Committee Officers James A. Shepherdson President and Chief Executive Officer William H. King Vice President and Treasurer Investment Adviser John Hancock Advisers, LLC 101 Huntington Avenue Boston, Massachusetts 02199-7603 Custodian The Bank of New York One Wall Street New York, New York 10286 Transfer Agent and Dividend Disburser Mellon Investor Services 85 Challenger Road Overpeck Centre Ridgefield Park, New Jersey 07660 Transfer Agent for DARTS Deutsche Bank Trust Company Americas 280 Park Avenue New York, New York 10017 Legal Counsel Wilmer Cutler Pickering Hale and Dorr LLP 60 State Street Boston, Massachusetts 02109-1803 Stock Symbol Listed New York Stock Exchange: HPI How to contact us Internet www.jhfunds.com Mail Regular mail: Mellon Investor Services 85 Challenger Road Overpeck Centre Ridgefield Park, NJ 07660 Phone Customer service representatives 1-800-852-0218 Portfolio commentary 1-800-344-7054 24-hour automated information 1-800-843-0090 TDD line 1-800-231-5469 This report is for the information of the shareholders of John Hancock Preferred Income Fund. P80Q3 4/05 6/05 ITEM 2. CONTROLS AND PROCEDURES. (a) Based upon their evaluation of the registrant's disclosure controls and procedures as conducted within 90 days of the filing date of this Form N-Q, the registrant's principal executive officer and principal accounting officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms. (b) There were no changes in the registrant's internal control over financial reporting that occurred during the registrant's last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. ITEM 3. EXHIBITS. Separate certifications for the registrant's principal executive officer and principal accounting officer, as required by Rule 30a-2(a) under the Investment Company Act of 1940, are attached. 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. John Hancock Preferred Income Fund By: ------------------------------ James A. Shepherdson President and Chief Executive Officer Date: June 30, 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: ------------------------------ James A. Shepherdson President and Chief Executive Officer Date: June 30, 2005 By: ------------------------------ William H. King Vice President and Treasurer Date: June 30, 2005