Registration No. 333-06147 filed pursuant to rule 424(b)(3) PROSPECTUS Hemagen Diagnostics, Inc. This Prospectus covers the following transactions and securities: 1. Sales by the selling securityholders named herein of: o Up to 2,695,255 shares of Common Stock. o Up to 2,695,255 Common Stock Purchase Warrants each exercisable for one share at an exercise price of $2.75 per share. o Up to 2,695,255 shares of Common Stock to be issued upon the exercise of outstanding Common Stock Purchase Warrants at an exercise price of $2.75 per share. 2. Exercise of Common Stock Purchase Warrants for the purchase of 2,695,255 shares of Common Stock for $2.75 per share by persons other than the selling securityholders. Hemagen will not receive any proceeds from sales by the selling securityholders. Hemagen will receive all the net proceeds from the exercise of the Warrants, namely, $7,411,951. Hemagen's Common Stock is traded in the Nasdaq SmallCap Market and on the Boston Stock Exchange under the symbols "HMGN" and "HGN," respectively. The Warrants are traded in the Nasdaq SmallCap Market under the symbol "HMGNW." On March 28, 2000 the last reported sale price of Hemagen's Common Stock was $2-7/8 per share and $15/16 per Warrant. The securities offered pursuant to this Prospectus involve a high degree of risk. See "Risk Factors" beginning at page 2. Neither the Securities and Exchange Commission or any state securities commission has approved or disapproved of these securities or determined that this Prospectus is truthful or complete. Any representation to the contrary is a criminal offense. The date of this Prospectus is March 29, 2000. TABLE OF CONTENTS Page PROSPECTUS SUMMARY................................................... 2 RISK FACTORS......................................................... 2 USE OF PROCEEDS...................................................... 5 SELLING SECURITYHOLDERS.............................................. 5 PLAN OF DISTRIBUTION................................................. 9 LEGAL MATTERS........................................................ 10 EXPERTS.............................................................. 11 WHERE YOU CAN FIND MORE INFORMATION.................................. 11 MISCELLANEOUS........................................................ 12 PROSPECTUS SUMMARY This Prospectus relates to Common Stock and Common Stock Purchase Warrants of Hemagen Diagnostics, Inc., a Delaware corporation. We issued 2,695,255 shares of Common Stock and 2,695,255 Warrants to purchase 2,695,255 shares of Common Stock at $2.75 per share in a March 1996 private placement. We registered the Shares and Warrants and shares issuable upon exercise of the Warrants for resale in 1996. An undetermined number of such Shares and Warrants have been resold pursuant to that registration. This Prospectus covers the continued resale of those securities by those persons who acquired them through the 1996 private offering. The 1996 private placement purchasers are identified as selling securityholders in this Prospectus and are named starting on page 5. This Prospectus also covers the exercise of outstanding Warrants to purchase 2,695,255 shares of Common Stock for $2.75 per share by persons other than the selling securityholders. Hemagen will not receive any proceeds from this offering other than up to $7,411,951 upon exercise of the Warrants. Hemagen's address is 34-40 Bear Hill Road, Waltham, Massachusetts 02154 and our telephone number is 1-800-436-2436. RISK FACTORS An investment in our Common Stock and Warrants offered under this prospectus involves a high degree of risk. The following risk factors, in addition to the other information contained in this prospectus, should be considered carefully in evaluating us and our business. The Report of Our Independent Accountants States That There Is Substantial Doubt as to Our Ability to Continue as a Going Concern. Our consolidated financial statements have been presented on the basis that Hemagen is a going concern which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business. We incurred a net loss of $5,160,355 in fiscal 1999 and our working capital decreased from $871,796 at September 30, 1999 to $220,000 at December 31, 1999. In addition, as of February 7, 2000, we were not in compliance, and continue to not be in compliance, with certain covenants of our revolving line of credit agreement with a bank under which we had borrowings of $4,057,500 as of such date. If we fail to meet our goals with regard to cost reductions and improved operations, our ability to continue as a going concern may be further jeopardized. Because Our Stock Price May Be Volatile, the Shares You Purchase May Lose Their Value Rapidly The market price of our common stock has been, and may continue to be, highly volatile. This price has ranged between $0.75 and $6.00 in the fifty-two week period ending March 28, 2000. The stock market has from time to time experienced extreme price and volume fluctuations, particularly in the biotechnology sector, which have often been unrelated to the operating performance of particular companies. Factors such as announcements of technological innovations or new products by our competitors or disappointing results by third parties, as well as market conditions in our industry, may significantly impact the market price of our common stock. We Need Additional Financing We had cash and cash equivalents on hand of $415,076 at December 31, 1999. We are in default of the financial covenants of our $3.8 million loan from Fleet National Bank. We have secured an agreement from that bank to forebear exercising its remedies until March 31, 2000, so long as no other defaults occur. We are in the process of raising additional capital through a convertible secured note offering of $4 million. We believe we will be able to consummate this offering by around March 31, 2000 and utilize the proceeds to pay the bank debt. However, there is no assurance that this plan will be successful. In addition, we will require additional funds to finance our planned operations for fiscal 2000. If we are unable to raise additional equity and/or borrow additional funds, we may not be able to execute our business plan and continue operations. Our Industry is Highly Competitive We operate in the highly competitive clinical diagnostics field. We have historically focused on niche markets which we believe offer significant growth potential and limited competition. However, we compete, and will compete in the future, with numerous other companies, many of which have substantially greater financial, technical and managerial resources than we do. We May Lose Our Proprietary Rights We protect our proprietary technology primarily as trade secrets rather than by relying on patents, either because patent protection is not possible or because, in our opinion, patent protection would be less effective than maintaining secrecy. Also, we rely on confidentiality agreements with our employees. Our efforts to maintain secrecy through confidentiality agreements and trade secret protection may be unsuccessful. If We Are Unable to Retain Our Key Personnel, We May Be Unable to Achieve Our Developmental Objectives Our success depends, in large part, upon our ability to attract and retain a highly qualified scientific and management team. The loss of key personnel or the failure to recruit the necessary additional personnel needed for a qualified team might impede the achievement of our objectives. We face competition for qualified personnel from other companies, research and academic institutions, government entities and other organizations. We may not be successful in hiring or retaining qualified scientific or management personnel on acceptable terms, given the competition among numerous diagnostics companies. If We Are Sued for Product Related Liabilities, the Cost Could Be Prohibitive to Us The testing, marketing and sale of human healthcare products entail an inherent exposure to product liability, and third parties may successfully assert product liability claims against us. Although we currently have insurance covering our products, we may not be able to maintain this insurance at acceptable costs in the future, if at all. In addition, our insurance may not be sufficient to cover large claims. Significant product liability claims could result in large and unexpected expenses as well as a costly distraction of management resources and potential negative publicity and reduced demand for our product. Our Activities Involve the Use of Hazardous Materials, and We May Be Held Liable for Any Accidental Injury from These Hazardous Materials Our research and development activities involve the controlled use of hazardous materials, including radioactive compounds. Although we believe that our safety procedures for handling and disposing of our hazardous materials comply with the standards prescribed by federal, state and local laws and regulations, the risk of accidental contamination or injury from these materials cannot be completely eliminated. In the event of an accident, we could be held liable for damages that result and significant and unexpected costs including costs relating to liabilities and clean-up, costs from increased insurance premiums or liability to obtain adequate insurance at a reasonable price and costs from loss of operations during clean-up. We are Subject to Extensive Government Regulation Our manufacturing and marketing of diagnostic test kits are subject to government regulation in the United States and the other countries where we market our products. The process of requesting and obtaining regulatory approvals involves lengthy and detailed laboratory and clinical testing, and other costly and time-consuming procedures. The extent of governmental regulation which may arise from future legislative or administrative action cannot be predicted. Our Common Stock May Be Delisted from the Nasdaq Small Cap Market, Which Would Make it More Difficult for You to Sell Shares Our common stock is listed on the Nasdaq SmallCap Market. In order to continue to be listed on Nasdaq, however, we must comply with certain maintenance standards. In the event of a delisting, an investor could find it more difficult to dispose of or to obtain accurate quotations as to the market value of our common stock. In addition, if our common stock were to become delisted from trading on Nasdaq, our common stock could be considered a penny stock. SEC regulations generally define a penny stock to be an equity security that is not listed on Nasdaq or a national securities exchange and that has a market value of less than $5.00 per share, subject to certain exceptions. The SEC regulations impose strict requirements on broker-dealers executing transactions in penny stocks. If our common stock is no longer traded on Nasdaq and becomes subject to the regulations applicable to penny stocks, investors may find it more difficult to obtain timely and accurate quotes and execute trades in our common stock. We Have Not Paid, and Do Not Expect to Pay, Dividends on Our Common Stock We have not paid dividends on our common stock since our inception and do not intend to pay any dividends to our stockholders in the foreseeable future. We intend to reinvest any earnings in the development and expansion of our business. USE OF PROCEEDS We will receive $7,411,951 if all of the Warrants are exercised. We will utilize these proceeds as received for general working capital purposes. SELLING SECURITYHOLDERS The following is a list of the persons who purchased our Common Stock and Warrants in the 1996 private placement along with the number of shares acquired by them represented by outstanding shares and shares issuable upon exercise of their Warrants. We believe that many of these persons have sold their Common Stock and Warrants pursuant to a registered secondary offering. We do not know how many of these persons still hold these securities, but to the extent the persons listed own those securities or acquired Common Stock through the exercise of Warrants purchased in the 1996 private placement, such Warrants and Common Stock may be publicly sold pursuant to this Prospectus. Number of Shares and Name Warrants - --------------------------------------------------------------------- ---------- Ando International, Inc. 727,272 Haussmann Holdings 680,000 Laurentian Special Equity Fund 360,000 One & Co. 336,000 Essex High Tech Fund LP 270,000 The New Discovery Fund 230,000 The Fisher Fund 220,000 Eugene Melnyk 181,820 Apollo Medical Partners 150,000 Okura & Co. (America), Inc. 145,454 Gary Davis 131,256 Barry M. Manuel 120,000 Jesup and Lamont Securities Corp. 111,064 Ville de Montreal 100,000 U.S. Technology 100,000 Virginia Guilder 90,000 Joseph D. Cooper and Carol J. Cooper, JTWROS 80,000 Wind River Partners LP 80,000 Jesup and Lamont Capital Markets, Inc. 73,278 Bradley Resources Company 72,000 The John Merck Fund 70,000 Money Purchase Pension Plan 60,000 Trust Pret et Revenu 60,000 Lawrence G. Goldberg 50,000 Hiro Yamagishi 46,964 Lawrence Kobren 46,000 G.W. Merck Trust Under Indenture f/b/o Serena M. Hatch 44,000 Leib Merkin Inc. 44,000 Family trust for Wife and Descendants of Thomas J. Berardino 40,000 Leonard J. Adams 40,000 Robert K. Fuchs 40,000 Wayne Saker 40,000 Louis A. Saporito, Jr. 40,000 Alan Vogel and Susan Faits, JTWROS 40,000 IHG Limited Profit Sharing Plan 37,600 John M. Curry 36,364 Howard Caral 35,000 Reuben F. Richards, Jr. 35,000 Guy F. Bernheim 20,000 Robert E. Briefel 20,000 Dwight M. Evans 20,000 Anthony Ferro 20,000 Charles Fischer 20,000 Generic Trading Associates, LLC 20,000 Michael Kubin and Nicole Kubin, JTWROS 20,000 Claude Lemire 20,000 Michael I. Michael and Venetia Michael, JTWROS 20,000 Donald G. Prigmore 20,000 Louis I. Meisel 20,000 Deborah L. Shear 20,000 Elliott Stagnari 20,000 George W.M. Hatch 20,000 Stanley Zaslow 20,000 Fonds Desjardins - Croissance 20,000 Ronald Brown and Beverly J. Brown, JTWROS 20,000 Nathan Roseman and Susan Roseman, JTWROS 20,000 Marshall Kaplan and Marsha Kaplan, JTWROS 20,000 Steven G. Cooperman, M.D. 20,000 Mitchell J. Held 20,000 Leader Financial Corporation 20,000 Francis W. Hatch 20,000 Serena M. Hatch 20,000 Marjory K. Hatch 20,000 Fonds Commun Canagex - Actions Canadiennes Cruissance 20,000 Serena H. Whitridge 16,000 Timothy Brody 15,000 Ron Furman 15,000 Brett Uarusi 15,000 James E. Forrest 12,000 North Star Assoc., #1 12,000 Robert L. Leeds, III 11,000 Spencer Trask Securities Inc. 10,200 Arbor Interiors Pension Fund 10,000 James J. Baldino & Roseanne M. Baldino, JTWROS 10,000 Sol J. Barer 10,000 Howard Berke 10,000 Frank J. Coppola and Barbara Ann Coppola, JTWROS 10,000 Myron J. Elfland 10,000 Peter Grabler 10,000 Brent D. Holmes and Kathleen A. Holmes, JTWROS 10,000 Andre W. Iseli 10,000 Lewis J. Levine 10,000 Robert P. McGovern 10,000 Howard G. Schoor and Joan Schoor, JTWROS 10,000 Donald C. Weinberger 10,000 Huyler C. Held 10,000 Ville de Laval 10,000 Ville de Jonquiere 10,000 Spencer F. Segura 10,000 E. Consulting 10,000 Delaware Charter Guaranty and Trust, cust for IRA Robert Walker 10,000 Edward Yodowitz 10,000 Konstantine Vaxevaneris 10,000 Joseph M. Coppola and Margaret Coppola, JTWROS 10,000 Douglas Spooner 8,290 Samuel Gordon 5,000 Susan Sweet 5,000 Eileen Sena 2,000 PLAN OF DISTRIBUTION Sales by Selling Securityholders To the extent described in this Prospectus, we are registering the securities offered hereby on behalf of the Selling Securityholders. The Selling Securityholders may sell or transfer all or a portion of the securities offered hereby from time to time to third parties directly or by or through brokers, dealers, agents or underwriters, who may receive compensation in the form of underwriting discounts, concessions or commissions from the Selling Securityholders and/or from purchasers of the securities for whom they may act as agent. However, we are not aware that any Selling Securityholders have entered into any agreements, understandings or arrangements with any underwriters or broker-dealers regarding the sale of their securities, nor is there an underwriter or coordinating broker acting in connection with the proposed sales or transfers of securities by the Selling Securityholders. Such sales and transfers of the securities may be effected from time to time in one or more transactions on the Nasdaq SmallCap Market and, with respect to the Common Stock, the Boston Stock Exchange, in the over-the-counter market, in negotiated transactions or otherwise, at a fixed price or prices, which may be changed, at market prices prevailing at the time of sale, at negotiated prices, or without consideration, through put or call options transactions relating to the securities, through short sales of securities or a combination of such methods of sale, or by any other legally available means. The term, "Selling Securityholders" includes donees, pledgees and assignees in interest selling securities from the named Selling Securityholders after the date of this Prospectus. Any or all of the securities may be sold or transferred from time to time by the Selling Securityholders by means of (a) a block trade in which the broker or dealer so engaged will attempt to sell the securities as agent but may position and resell a portion of the block as principal to facilitate the transaction; (b) purchases by a broker or dealer as principal and resale by such broker or dealer for its account pursuant to this Prospectus; (c) ordinary brokerage transactions and transactions in which the broker solicits purchasers; (d) through the writing of options on the Common Stock; (e) pledges as collateral to secure loans, credit or other financing arrangements and any subsequent foreclosure, if any, thereunder; (f) gifts, donations and contributions; and (g) any other legally available means. The aggregate net proceeds to the Selling Securityholders from the sale of the securities will be the purchase price of such securities less any commissions. In order to comply with the securities laws of certain states, if applicable, the securities will be sold in such jurisdictions only through registered or licensed brokers or dealers. In addition, in certain states the securities may not be sold unless they have been registered or qualified for sale in the applicable state or an exemption from the registration or qualification requirement is available and is complied with. The Selling Securityholders and any brokers, dealers, agents or underwriters that participate in the distribution of the securities may be deemed to be "underwriters" within the meaning of Section 2(11) of the Securities Act, in which event any discounts, concessions and commissions received by such brokers, dealers, agents or underwriters and any profit on the resale of the securities purchased by them may be deemed to be underwriting commissions or discounts under the Securities Act. Because the Selling Securityholders may be deemed to be "underwriters" within the meaning of Section 2(11) of the Securities Act, the Selling Securityholders will be subject to the prospectus delivery requirements of the Securities Act, which may include delivery through the facilities of the Nasdaq National Market. Additionally, the anti-manipulative provisions of Regulation M promulgated under the Exchange Act may apply to sales by the Selling Securityholders in the market. No underwriter, broker, dealer or agent has been engaged by us in connection with the distribution of the securities registered herein. Any securities covered by this Prospectus which qualify for sale pursuant to Rule 144 under the Securities Act may be sold under Rule 144 rather than pursuant to this Prospectus. There is no assurance that the Selling Securityholders will sell any of the securities. The Selling Securityholders may transfer, devise or gift securities by other means not described herein. We will pay all of the expenses incident to the registration of the securities, other than underwriting discounts and selling commissions, if any. The Selling Securityholders may agree to indemnify any agent, dealer or broker-dealer that participates in transactions involving sales of securities against certain liabilities, including liabilities under the Securities Act. If we are notified by Selling Securityholders that any material arrangement has been entered into with a broker-dealer for the sale of securities through a block trade, special offering, exchange distribution or secondary distribution or a purchase by a broker or dealer, we will file a supplement to this prospectus, if required, pursuant to Rule 424(b) under the Securities Act. The supplement will disclose (i) the name of each such selling Securityholders and of the participating broker-dealer(s), (ii) the number of securities involved, (iii) the price at which such securities will be sold, (iv) the commissions to be paid or discounts or concessions to be allowed to such broker-dealer(s), where applicable, (v) that such broker-dealer(s) did not conduct any investigation to verify the information set out or incorporated by reference in this prospectus and (vi) other facts material to the transaction. A supplement to this prospectus will be filed if the Company is notified by the Selling Securityholders that a donee or pledgee intends to sell more than 500 of any of the securities. Exercise of Warrants Holders of Warrants may exercise them by surrendering Warrant Certificates to Hemagen's Transfer Agent, Continental Stock Transfer & Trust Company, Compliance Department, 2 Broadway, New York, New York 10004 with a subscription on the reverse side of the Warrant Certificate completed and executed, together with payment of the exercise price of $2.75 per share. The Warrants may be exercised at any time, in whole or in part, until the close of business on February 28, 2001. LEGAL MATTERS The legality of the securities offered hereby will be passed upon for Hemagen by Keating, Muething & Klekamp, P.L.L., Cincinnati, Ohio. EXPERTS The financial statements incorporated by reference in this Prospectus have been audited by BDO Seidman, LLP, independent certified public accountants, to the extent and for the periods set forth in their report (which contains an explanatory paragraph regarding the Company's ability to continue as a going concern) incorporated herein by reference, and are incorporated herein in reliance upon such report given upon the authority of said firm as experts in auditing and accounting. WHERE YOU CAN FIND MORE INFORMATION We file annual, quarterly and special reports, proxy statements and other information with the SEC. You may also read and copy any document we file at the SEC's public reference room at 450 Fifth Street, N.W., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the public reference rooms. Our SEC filings are available to the public over the internet at the SEC's web site at http://www.sec.gov. The SEC allows us to "incorporate by reference" the information we file with them. This Prospectus incorporates important business and financial information about Cintas which is not included in or delivered with this Prospectus. The information incorporated by reference is an important part of this Prospectus, and information that we file later with the SEC will automatically update and supersede this information. We incorporate by reference the Quarterly Report on Form 10-Q for the quarter ended December 31, 1999, the Annual Report on Form 10-K, as amended, for the year ended September 30, 1999, the Form 8-K/A filed October 14, 1999 and any future filings made with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934 prior to the termination of this offering. We also incorporate by reference our Registration Statement on Form 8-A filed on February 2, 1993, registering the Company's Common Stock under the Exchange Act, which describes the Common Stock being registered by this Prospectus. You may obtain a copy of these filings without charge, by writing or telephoning us at the following address: William P. Hales President Hemagen Diagnostics, Inc. 34-40 Bear Hill Road Waltham, Massachusetts 02154 (800) 436-2436 You should rely only on the information incorporated by reference or provided in this Prospectus. We have not authorized anyone else to provide you with different information. We are not making an offer of these securities in any state where the offer is not permitted. You should not assume that the information in this Prospectus is accurate as of any date other than the date on the front of those documents. If you would like to request documents from us, please do so by five business days before you have to make an investment decision. Certain statements contained in this Prospectus and in reports that we file with the SEC that are not historical facts constitute forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995, and are intended to be covered by the safe harbors created by that Act. Reliance should not be placed on forward-looking statements because they involve known and unknown risks, uncertainties and other factors including, without limitation, those contained in this Risk Factors section, which may cause actual results, performance or achievements to differ materially from those expressed or implied. Any forward-looking statement speaks only as of the date made. We undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date on which they are made. MISCELLANEOUS No person is authorized to give any information or to make any representations other than those contained or incorporated by reference in this Prospectus and, if given or made, such information or representations must not be relied upon as having been authorized. This Prospectus does not constitute an offer to sell or a solicitation of an offer to buy any securities other than the registered securities to which it relates or an offer to sell or a solicitation of an offer to buy such securities in any jurisdiction to any person to whom it is unlawful to make such offer or solicitation in such jurisdiction. Neither the delivery of this Prospectus nor any sale hereunder shall, under any circumstances, create any implication that there has been no change in the affairs of Hemagen since the date hereof or that the information herein is correct as of any time subsequent to its date.