AASTROM BIOSCIENCES INC
S-3/A, 2000-12-29
PHARMACEUTICAL PREPARATIONS
Previous: JENSEN PORTFOLIO INC, 497AD, 2000-12-29
Next: AASTROM BIOSCIENCES INC, S-3/A, EX-5.1, 2000-12-29



<PAGE>


   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON DECEMBER 29, 2000
                          REGISTRATION NO. 333-51350

================================================================================

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                                Amendment No. 1
                                   FORM S-3

                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933

                           AASTROM BIOSCIENCES, INC.
            (Exact Name of Registrant as Specified in Its Charter)

                 MICHIGAN                                  94-3096597
        (State or Other Jurisdiction                     (IRS Employer
      of Incorporation or Organization)              Identification Number)

                          24 FRANK LLOYD WRIGHT DRIVE
                                 P.O. BOX 376
                           ANN ARBOR, MICHIGAN 48106
                                (734) 930-5555
         (Address, Including Zip Code, and Telephone Number, Including
            Area Code, of Registrant's Principal Executive Offices)

                          R. DOUGLAS ARMSTRONG, PH.D.
                     PRESIDENT AND CHIEF EXECUTIVE OFFICER
                           AASTROM BIOSCIENCES, INC.
                          24 FRANK LLOYD WRIGHT DRIVE
                                 P.O. BOX 376
                           ANN ARBOR, MICHIGAN 48106
                                (734) 930-5555
      (Name, Address, Including Zip Code, and Telephone Number, Including
                       Area Code, of Agent for Service)

                                  COPIES TO:

                             DOUGLAS J. REIN, ESQ.
                       GRAY CARY WARE & FREIDENRICH LLP
                       4365 EXECUTIVE DRIVE, SUITE 1600
                              SAN DIEGO, CA 92121
                           TELEPHONE: (858) 677-1400
                           FACSIMILE: (858) 677-1477

       APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
               From time to time as described in the Prospectus.

If the only securities being registered on this Form are being offered pursuant
to dividend or interest reinvestment plans, please check the following box. [_]

If any of the securities being registered on this Form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [X]

If this Form is filed to register additional securities for an offering pursuant
to Rule 462(b) under the Securities Act, please check the following box and list
the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [_]

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under
the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]

If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box.[_]

<TABLE>
<CAPTION>
                                            CALCULATION OF REGISTRATION FEE


=======================================================================================================================
                                                       PROPOSED                  PROPOSED
                                   AMOUNT               MAXIMUM                  MAXIMUM                AMOUNT OF
      TITLE OF SHARES              TO BE               AGGREGATE                AGGREGATE              REGISTRATION
      TO BE REGISTERED           REGISTERED       PRICE PER UNIT (1)        OFFERING PRICE (1)             FEE (2)
-----------------------------------------------------------------------------------------------------------------------
<S>                              <C>               <C>                      <C>                       <C>
Common Stock                     7,700,000              $0.96                 $7,392,000                  $1,848
($0 par value)
=======================================================================================================================
</TABLE>

(1)  Estimated, pursuant to Rule 457(c), solely for the purpose of calculating
the registration fee based on the average of the high and low prices for the
common stock, as reported on the Nasdaq National Market on December 27,
2000.

(2)  $2,130 has paid with the initial filing

THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES
AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL FILE
A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION STATEMENT
SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF THE
SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.

================================================================================
<PAGE>


                SUBJECT TO COMPLETION, DATED DECEMBER 29, 2000

The information in this prospectus is not complete and may be changed.  The
selling holder may not sell these securities under this prospectus until the
registration statement filed with the Securities and Exchange Commission is
effective.  This prospectus is not an offer to sell nor does it seek an offer to
buy these securities in any state where the offer and sale would not be
permitted.

PROSPECTUS
----------

                           AASTROM BIOSCIENCES, INC.

                       7,700,000 SHARES OF COMMON STOCK

     We may from time to time issue up to 7,700,000 shares of our common stock.
We will specify in the accompanying prospectus supplement or amendment the terms
of any such offering. We may sell these common shares to or through underwriters
and also to other purchasers or through agents. We will set forth the names of
any underwriters or agents in the accompanying prospectus supplement or
amendment.

     You should read this document and any prospectus supplement or amendment
carefully before you invest.

     Our common stock is traded on the Nasdaq National Market under the symbol
"ASTM." On December 27, 2000, the last reported sale price for our common stock
was $.90625 per share.

                               ________________


     INVESTING IN THE COMMON STOCK INVOLVES A HIGH DEGREE OF RISK. YOU SHOULD
CONSIDER CAREFULLY THE RISK FACTORS BEGINNING ON PAGE 3 OF THIS PROSPECTUS
BEFORE MAKING A DECISION TO PURCHASE OUR STOCK.

                               ________________


     NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED THESE SECURITIES OR DETERMINED IF THIS
PROSPECTUS IS TRUTHFUL OR COMPLETE.  ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

                               ________________



               THE DATE OF THIS PROSPECTUS IS DECEMBER __, 2000.
<PAGE>

================================================================================

You should rely only on the information provided or incorporated by reference in
this prospectus. We have not authorized anyone to provide you with additional or
different information. This document may only be used where it is legal to sell
these securities. You should not assume that any information in this prospectus
is accurate as of any date other than the date of this prospectus.

================================================================================

                    ======================================================
                                   TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                  Page
                                                                  ----
                    <S>                                           <C>
                    Our Business................................    1
                    Risk Factors................................    3
                    Where You Can Find More Information.........   10
                    Plan of Distribution........................   11
                    Use of Proceeds.............................   12
                    Legal Matters...............................   12
                    Experts.....................................   12
</TABLE>
                    ======================================================
<PAGE>

                                 OUR BUSINESS

          Because this is a summary, it does not contain all the information
     about us that may be important to you. You should read the more detailed
     information and the financial statements and related notes which are
     incorporated by reference in this prospectus.

     Aastrom
     -------

          Aastrom Biosciences, Inc. is developing proprietary process
     technologies and devices intended for a broad range of cell therapy
     applications. The AastromReplicell(TM) System is our lead product under
     development, and consists of a clinical cell culture system that operates
     single-use therapy kits tailored for patient therapy in the emerging cell
     therapy market. In April 1999, we began European commercialization and a
     lead U.S. pivotal clinical trial of the AastromReplicell(TM) System for use
     in stem cell therapy was in process. However, in October 1999, we suspended
     marketing efforts and our U.S. clinical development activities until we
     could obtain additional funding. With recently received funding, we have
     recommenced our U.S. clinical development program, and we are resuming
     pilot-scale marketing activities in Europe with targeted medical centers.

          For the current applications in stem cell therapy, we believe that the
     AastromReplicell(TM) System method of producing cells will be a cost-
     effective, less invasive and less time-consuming alternative, or
     improvement to, currently available stem cell collection methods and may
     enhance the clinical utility of umbilical cord blood transplants in
     patients with certain forms of leukemia and other blood diseases by
     expanding the number of cells available for transplant. Further, the
     AastromReplicell(TM) System is designed as a platform product which
     implements our pioneering cell production technology. Accordingly, we
     believe that the AastromReplicell(TM) System can be modified to produce a
     wide variety of other cell types for selected emerging therapies currently
     in development, and we either have, or plan to initiate, development
     programs targeted towards some of these emerging therapies.

          Our business model builds on two components: (i) proprietary
     procedures and devices to enable certain types of stem cells and other
     types of human cells to be produced with superior biological capabilities
     as compared with standard cell culture approaches, and (ii) the
     AastromReplicell(TM) System clinical platform that is designed to
     standardize and enable an effective commercialization pathway for bringing
     therapeutic cell production to medical practice. The product configuration
     of the AastromReplicell(TM) System consists of an instrumentation platform,
     to be integrated within the hospital or other centralized facility, that
     can operate a variety of single-use therapy kits that are specific to the
     desired medical application. This is intended to provide a product pathway
     for each cell therapy that is similar to a pharmaceutical product including
     regulatory approval, reimbursement, marketing and pricing. We believe that
     the product design of the AastromReplicell(TM) System will allow us to
     develop additional cell therapy kits to provide product standardization for
     a number of emerging cell therapies being developed by other researchers.

          We are currently developing our SC-I Therapy Kit, CB-I Therapy Kit and
     CB-II Therapy Kit for use in stem cell therapy in cancer patients. Stem
     cell therapy is a form of cell therapy used to restore blood and immune
     system function to cancer patients following chemotherapy or radiation
     therapy. Current stem cell collection methods, including bone marrow
     harvest and peripheral blood progenitor cell mobilization, can be costly,
     invasive and time-consuming for both medical personnel and patients. We
     believe that the AastromReplicell(TM) System may offer significant
     advantages over traditional stem cell collection methods in settings where
     it is difficult to obtain the desired quantity of cells for transplant
     using the current cell collection methods. The AastromReplicell(TM) System
     is intended to be used to produce cells for stem cell therapy from a small
     starting volume of bone marrow or umbilical cord blood cells. Although we
     may not market the AastromReplicell(TM) System in the United States for
     stem cell therapy unless and until approval is obtained from the U.S. Food
     and Drug Administration (FDA), production-level versions of the
     AastromReplicell(TM) System have been completed and we have obtained
     permission to affix the CE Mark to such versions. CE Mark approval allows
     for marketing of the product in Europe. We may also market the
     AastromReplicell(TM) System in the U.S. for research and investigational
     use.

                                       1
<PAGE>

          We have also recently initiated development programs for
     AastromReplicell(TM) System therapy kits for the production of bone-forming
     cells and for dendritic cells. The new OC-I Therapy Kit is intended for the
     production of bone-forming cells for the treatment of patients with
     degenerative bone diseases such as osteoporosis. We recently initiated our
     first Phase I/II-Pilot clinical study for the OC-I Therapy Kit in patients
     with severe osteoporosis. Our new DC-I Therapy Kit is being developed for
     the production of human dendritic cells to be used in cancer immunotherapy
     applications. Recent clinical studies conducted by others have indicated
     that modified dendritic cells may be an important new way to treat certain
     cancers.

          Our principal executive offices are located at 24 Frank Lloyd Wright
     Drive, P. O. Box 376, Ann Arbor, MI 48106. Our telephone number is (734)
     930-5555.

                                       2
<PAGE>

                                 RISK FACTORS

          You should carefully consider the following risk factors before
     purchasing our common stock. The risks and uncertainties described below
     are not the only ones we face. There may be additional risks and
     uncertainties that are not known to us or that we do not consider to be
     material at this time. If the events described in these risks occur, our
     business, financial condition and results of operations would likely
     suffer. This prospectus contains forward-looking statements which involve
     risks and uncertainties. Our actual results may differ significantly from
     the results discussed in the forward-looking statements. This section
     discusses some of the factors that might cause those differences.

     If We Cannot Complete Our Product Development Activities Successfully, Our
     Ability to Operate or Finance Operations Will Be Severely Limited.

          Commercialization in the United States of our lead product candidate,
     the AastromReplicell(TM) Cell Production System, will require additional
     research and development as well as substantial clinical trials. While we
     have commenced initial marketing on a very limited basis of the
     AastromReplicell(TM) System in Europe, we believe that the United States
     will be the principal market for our products. We may not be able to
     successfully complete development of the AastromReplicell(TM) System or our
     other product candidates, or successfully market our technologies or
     product candidates. We and any of our potential collaborators may encounter
     problems and delays relating to research and development, regulatory
     approval and intellectual property rights of our technologies and product
     candidates. Our research and development programs may not be successful,
     and our cell culture technologies and product candidates may not facilitate
     the ex vivo production of cells with the expected biological activities in
     humans. Our technologies and product candidates may not prove to be safe
     and efficacious in clinical trials, and we may not obtain the intended
     regulatory approvals for our technologies or product candidates and the
     cells produced in such products. If any of these events occur, we may not
     have adequate resources to continue operations for the period required to
     resolve the issue delaying commercialization and we may not be able to
     raise capital to finance our continued operation during the period required
     for resolution of that issue.

     We Cannot Be Certain That We Will Be Able to Raise the Required Capital to
     Conduct Our Operations and Develop Our Products.

          We will require substantial capital resources in order to conduct our
     operations and develop our products. In October 1999, we were forced to
     reduce operations based on our declining level of capital resources and our
     limited financing alternatives available at that time. Although we have
     started to restore operating activities, the previous reduction in our
     operating activities has negatively affected our ability to develop our
     products and has delayed our product development programs. Based on current
     funding and anticipated operating activities, we expect that our available
     cash and expected interest income will be sufficient to finance our current
     activities through the end of our fiscal year ending June 30, 2001. This is
     a forward-looking statement and could be negatively affected by funding
     limitations, the implementation of additional research and development
     programs and other factors discussed under this heading. We are currently
     pursuing additional sources of financing. If we cannot obtain additional
     funding prior to that time, we will be forced to make substantial
     reductions in the scope and size of our operations, and may be forced to
     curtail activities that we currently plan to resume. In order to grow and
     expand our business, and to introduce our product candidates into the
     marketplace, we will need to raise additional funds. We will also need
     additional funds or a collaborative partner, or both, to finance the
     research and development activities of our new product candidates for the
     production of additional cell types.

          Our future capital requirements will depend upon many factors,
     including:

          .    continued scientific progress in its research and development
               programs;
          .    costs and timing of conducting clinical trials and seeking
               regulatory approvals and patent prosecutions;
          .    competing technological and market developments;
          .    the ability of Aastrom to establish additional collaborative
               relationships; and
          .    effective commercialization activities and facility expansions if
               and as required.

                                       3
<PAGE>

     Because of our long-term funding requirements, we may attempt to access the
     public or private equity markets if and whenever conditions are favorable,
     even if we do not have an immediate need for additional capital at that
     time. Further, we may enter into financing transactions at rates which are
     at a substantial discount to market. This additional funding may not be
     available to us on reasonable terms, or at all. If adequate funds are not
     available, we may be required to further delay or terminate research and
     development programs, curtail capital expenditures, and reduce business
     development and other operating activities.

     We Must Successfully Complete Our Clinical Trials to be Able to Market Our
     Products.

          To be able to market products in the United States, we must
     demonstrate, through extensive preclinical studies and clinical trials, the
     safety and efficacy of our processes and product candidates, together with
     the cells produced by such processes in such products, for application in
     the treatment of humans. We are currently conducting clinicals trial to
     demonstrate the safety and biological activity of patient-derived cells
     produced in the AastromReplicell System(TM). Depending on the availability
     of resources, we intend to commence at least one additional clinical trial
     to demonstrate the safety and biological activity of umbilical cord blood
     cells produced in the AastromReplicell(TM) System. If our clinical trials
     are not successful, our products may not be marketable.

          Our ability to complete our clinical trials in a timely manner depends
     on many factors, including the rate of patient enrollment. Patient
     enrollment can vary with the size of the patient population, the proximity
     of suitable patients to clinical sites, perceptions of the utility of stem
     cell therapy for the treatment of certain diseases and the eligibility
     criteria for the study. We have experienced delays in patient accrual in
     our previous and current clinical trials. If we experience future delays in
     patient accrual, we could experience increased costs and delays associated
     with clinical trials which would impair our product development programs
     and our ability to market our products. Furthermore, the U.S. Food and Drug
     Administration ("FDA") monitors the progress of clinical trials and it may
     suspend or terminate clinical trials at any time due to patient safety or
     other considerations.

     Failure to Obtain and Maintain Required Regulatory Approvals Would Severely
     Limit Our Ability to Sell Our Products.

          We must obtain the approval of the FDA before commercial sales of our
     product candidates may commence in the United States, which we believe will
     be the principal market for our products. We may also be required to obtain
     additional approvals from foreign regulatory authorities to continue or
     increase our sales activities in those jurisdictions. If we cannot
     demonstrate the safety, reliability and efficacy of our product candidates,
     or of the cells produced in such products, we may not be able to obtain
     required regulatory approvals. Many of the patients enrolled in the
     clinical trials will have previously undergone extensive treatment which
     will have substantially weakened the patients and may have irreparably
     damaged the ability of their blood and immune system to recover. Some
     patients undergoing the transplant recovery process have died, from causes
     that were, according to the physicians involved, unrelated to the
     AastromReplicell(TM) System procedure, and it is possible that other
     patients may die or suffer severe complications during the course of either
     the current or future clinical trials. In addition, patients receiving
     cells produced with our technologies and product candidates may not
     demonstrate long-term engraftment in a manner comparable to cells obtained
     from current stem cell therapy procedures. If we cannot demonstrate the
     safety or efficacy of our technologies and product candidates, including
     long-term sustained engraftment, or if one or more patients die or suffer
     severe complications, the FDA or other regulatory authorities could delay
     or withhold regulatory approval of our product candidates.

          Finally, even if we obtain regulatory approval of a product, that
     approval may be subject to limitations on the indicated uses for which it
     may be marketed. Even after granting regulatory approval, the FDA, other
     regulatory agencies, and governments in other countries continue to review
     and inspect marketed products, manufacturers and manufacturing facilities.
     Later discovery of previously unknown problems with a product, manufacturer
     or facility may result in restrictions on the product or manufacturer,
     including a withdrawal of the product from the market. Further,
     governmental regulatory agencies may establish additional regulations which
     could prevent or delay regulatory approval of our products.

                                       4
<PAGE>

     Even If We Obtain Regulatory Approvals to Sell Our Products, Lack of
     Commercial Acceptance Would Impair Our Business.

          Our product development efforts are primarily directed toward
     obtaining regulatory approval to market the AastromReplicell(TM) System as
     an alternative to, or as an improvement for, the bone marrow harvest and
     peripheral blood progenitor cell stem cell collection methods. These stem
     cell collection methods have been widely practiced for a number of years,
     and our technologies or product candidates may not be accepted by the
     marketplace as readily as these or other competing processes and
     methodologies. Additionally, our technologies or product candidates may not
     be employed in all potential applications being investigated, and any
     limited applications would limit the market acceptance of our technologies
     and product candidates and our potential revenues. As a result, even if we
     obtain all required regulatory approvals, we cannot be certain that our
     products and processes will be adopted at a level that would allow us to
     operate profitably.

     Failure of Third Parties to Manufacture Component Parts or Provide Limited
     Source Supplies Would Impair Our New Product Development and Our Sales
     Activities.

          We rely solely on third parties to manufacture our product candidates
     and their component parts. We also rely solely on third party suppliers to
     provide necessary key mechanical components, as well as growth factors and
     other materials used in the cell expansion process. We would not be able to
     obtain alternate sources of supply for many of these items on a short-term
     basis. In October 1999, we suspended manufacturing of our products. While
     we are in the process of re-establishing our product manufacturing
     capabilities, we have not yet completed those activities and resumed
     production of certain components of our product line. If any of our key
     manufacturers or suppliers fail to perform their respective obligations or
     if our supply of growth factors, components or other materials is limited
     or interrupted, we would not be able to conduct clinical trials or market
     our product candidates on a timely and cost-competitive basis, if at all.

          Furthermore, some of the compounds used by us in our current stem cell
     expansion processes involve the use of animal-derived products. Suppliers
     or regulatory authorities may limit or restrict the availability of such
     compounds for clinical and commercial use. Any restrictions on these
     compounds would impose a potential competitive disadvantage for our
     products. If we were not able to develop or obtain alternative compounds,
     our product development and commercialization efforts would be harmed.

          Finally, we may not be able to continue our present arrangements with
     our suppliers, supplement existing relationships, establish new
     relationships or be able to identify and obtain the ancillary materials
     that are necessary to develop our product candidates in the future. Our
     dependence upon third parties for the supply and manufacture of these items
     could adversely affect our ability to develop and deliver commercially
     feasible products on a timely and competitive basis.

     Our Past Losses and Expected Future Losses Cast Doubt on Our Ability to
     Operate Profitably.

          We were incorporated in 1989 and have experienced substantial
     operating losses since inception. As of September 30, 2000, we have
     incurred net operating losses totaling approximately $80.4 million. These
     losses have resulted principally from costs incurred in the research and
     development of our cell culture technologies and the AastromReplicell(TM)
     System, general and administrative expenses, and the prosecution of patent
     applications. We expect to incur significant operating losses until product
     sales increase, primarily owing to our research and development programs,
     including preclinical studies and clinical trials, and the establishment of
     marketing and distribution capabilities necessary to support
     commercialization efforts for our products. We cannot predict with any
     certainty the amount of future losses. Our ability to achieve profitability
     will depend, among other things, on successfully completing the development
     of our product candidates, obtaining regulatory approvals, establishing
     manufacturing, sales and marketing arrangements with third parties, and
     raising sufficient funds to finance our activities. We may not be able to
     achieve or sustain profitability.

     Our Stock Price Has Been Volatile and Future Sales of Substantial Numbers
     of Our Shares Could Have an Adverse Effect on the Market Price of Our
     Shares.

          The Market price of shares of our common stock has been volatile. The
     price of our common stock may continue to fluctuate in response to a number
     of events and factors, such as:

               .    clinical trial results;
               .    the amount of our cash resources and our ability to obtain
                    additional funding;
               .    announcements of research activities, business developments,
                    technological innovations or new products by us or our
                    competitors;
               .    changes in government regulation;
               .    disputes concerning patents or proprietary rights;
               .    changes in our revenues or expense levels;
               .    public concern regarding the safety, efficacy or other
                    aspects of the products or methodologies we are developing;
                    and
               .    changes in potential recommendations by securities analysts.

         Any of these events may cause the price of our shares to fall, which
     may adversely affect our business and financing opportunities. In addition,
     the stock market in general and the market prices for biotechnology
     companies in particular have experienced significant volatility that often
     has been unrelated to the operating performance or financial conditions of
     such companies. These broad market and industry fluctuations may adversely
     affect the trading price of our shares, regardless of our operating
     performance or prospectus. For example, since November, 1999 our stock
     price has experienced a day where it closed at approximately twice the
     previous day's closing price and another day when it dropped by over 20%
     from the previous day's closing price. Additionally, since December 1999
     the closing market price of our common stock has ranged from $0.60 to $7.75
     per share. Based upon market fluctuations in our stock and depending upon
     the timing and amount of shares sold by us, if any, pursuant to this
     prospectus, investors who purchase our common stock may experience a
     significant decrease in the market price of their shares over a short
     period of time.

          In addition, sales, or the possibility of sales, of substantial
     numbers of shares of common stock in the public market, including sales
     pursuant to this prospectus, could adversely affect prevailing market
     prices of shares of common stock. Our employees hold a significant number
     of options to purchase shares, many of which are presently exercisable.
     Employees may exercise their options and sell shares shortly after such
     options become exercisable, particularly if they need to raise funds to pay
     for the exercise of such options or to satisfy tax liabilities that they
     may incur in connection with exercising their options. Additionally,
     beginning January 1, 2001, COBE BCT will be able to sell all of its
     approximately 2.4 million shares of our common stock without restriction.

                                         5
<PAGE>

     Given Our Limited Internal Sales and Marketing Capabilities, We Need to
     Develop Collaborative Relationships to Sell, Market and Distribute Our
     Products.

          While we have commenced initial marketing on a limited basis of the
     AastromReplicell(TM) System in Europe, we have only limited internal sales,
     marketing and distribution capabilities. We intend to market our products
     through collaborative relationships with companies for sales, marketing and
     distribution capabilities. If we cannot develop and maintain those
     relationships, we would have only a limited ability to market, sell and
     distribute our products. Even if we are able to enter into such
     relationships, they may not succeed or be sustained on a long-term basis,
     and termination would require us to develop alternate arrangements at a
     time when we need sales, marketing or distribution capabilities to meet
     existing demand. For example, in November 1998 Aastrom and COBE BCT
     terminated a strategic alliance for the worldwide distribution of the
     AastromReplicell(TM) System for stem cell therapy and related uses. We are
     now seeking to enter into other arrangements relating to the development
     and marketing of our product candidates.

     Any Changes in the Governmental Regulatory Classifications of Our Products
     Could Prevent, Limit or Delay Our Ability to Market or Develop Our
     Products.

          The FDA establishes regulatory requirements based on the
     classification of a product. Although the FDA has indicated it intends to
     regulate the AastromReplicell(TM) System for stem cell therapy as a Class
     III medical device, the FDA may ultimately choose to regulate the
     AastromReplicell(TM) System under another category. Because our product
     development programs are designed to satisfy the standards applicable to
     Class III medical devices, a change in the regulatory classification would
     affect our ability to obtain FDA approval of our products. Also, the FDA is
     in the process of developing its requirements with respect to somatic cell
     therapy and gene cell therapy products. Until the FDA issues definitive
     regulations covering our product candidates, the regulatory guidelines or
     requirements for approval of such product candidates and/or the cells
     produced by them will continue to be uncertain.

     If We Do Not Keep Pace With Our Competitors and With Technological and
     Market Changes, Our Products May Become Obsolete and Our Business May
     Suffer.

          The market for our product is very competitive and is subject to rapid
     technological changes. Many of our competitors have significantly greater
     resources, more product candidates and have developed product candidates
     and processes that directly compete with our products. Our competitors may
     have developed, or could in the future develop, new technologies that
     compete with our products or even render our products obsolete. In
     addition, some recently published studies have suggested that stem cell
     therapy, which is the current principal market for our SC-I Therapy Kit,
     may have limited clinical benefit in the treatment of breast cancer, which
     is a significant portion of the current overall stem cell transplant
     market. Our products are designed to improve upon traditional stem cell
     collection methods, but even if we are able to demonstrate improved or
     equivalent results, practitioners may not switch to our new processes.
     Given the experience and expertise associated with traditional methods, if
     we cannot develop our cell production procedure to lead to a less expensive
     and quicker recovery time than seen with the traditional methods, then we
     will suffer a competitive disadvantage. Finally, to the extent that others
     develop new technologies that address the diseases and health conditions we
     have targeted, our business will suffer.

     If Our Patents and Proprietary Rights Do Not Provide Substantial
     Protection, Then Our Business and Competitive Position Will Suffer.

          Our success depends in large part on our ability to develop or license
     and protect proprietary products and technologies. However, we cannot be
     assured that patents will be granted on any of our pending or future patent
     applications. We also cannot be assured that the scope of any of our issued
     patents will be sufficiently broad to offer meaningful protection. In
     addition, our issued patents or patents licensed to us could be
     successfully challenged, invalidated or circumvented so that our patent
     rights would not create an effective competitive barrier. Furthermore, we
     rely on licenses granted by the University of Michigan for certain of our
     patent rights. If we breach such agreements or otherwise fail to comply
     with such agreements, or if such agreements expire or are otherwise
     terminated, we may lose our rights under the patents held by the University
     of Michigan. We also rely on trade

                                       6
<PAGE>

     secrets and unpatentable know-how which we seek to protect, in part, by
     confidentiality agreements with our employees, consultants, suppliers and
     licensees. These agreements may be breached, and we might not have adequate
     remedies for any breach. If this were to occur, our business and
     competitive position would suffer.

     Intellectual Property Litigation Could Harm Our Business.

          Our success will also depend in part on our ability to develop
     commercially viable products without infringing the proprietary rights of
     others. Although we have not been subject to any filed infringement claims,
     other patents could exist or could be filed which would prohibit or limit
     our ability to market our products or maintain our competitive position. In
     the event of an intellectual property dispute, we may be forced to
     litigate. Intellectual property litigation would divert management's
     attention from developing our products and would force us to incur
     substantial costs regardless of whether we are successful. An adverse
     outcome could subject us to significant liabilities to third parties, and
     force us to curtail or cease the development and sale of our products and
     processes.

     The Market for Our Products Will Be Heavily Dependent on Third Party
     Reimbursement Policies.

          Our ability to successfully commercialize our product candidates will
     depend on the extent to which government healthcare programs, such as
     Medicare and Medicaid, as well as private health insurers, health
     maintenance organizations and other third party payors will pay for our
     products and related treatments. Reimbursement by third-party payors
     depends on a number of factors, including the payor's determination that
     use of the product is safe and effective, not experimental or
     investigational, medically necessary, appropriate for the specific patient
     and cost-effective. Reimbursement in the United States or foreign countries
     may not be available or maintained for any of our product candidates. If we
     do not obtain approvals for adequate third-party reimbursements, we may not
     be able to establish or maintain price levels sufficient to realize an
     appropriate return on our investment in product development. Any limits on
     reimbursement available from third-party payors may reduce the demand for,
     or negatively affect the price of, our products. For example, recently
     published studies have suggested that stem cell transplantation in breast
     cancer, which constitutes a significant portion of the overall stem cell
     therapy market, may have limited clinical benefit. The market for our
     products would be negatively affected by lack of reimbursement for these
     procedures by insurance payors.

     Potential Product Liability Claims Could Effect Our Earnings and Financial
     Condition.

          We face an inherent business risk of exposure to product liability
     claims in the event that the use of the AastromReplicell(TM) System during
     research and development efforts, including clinical trials, or after
     commercialization results in adverse effects. As a result, we may incur
     significant product liability exposure, which could exceed existing
     insurance coverage. We may not be able to maintain adequate levels of
     insurance at reasonable cost and/or reasonable terms. Excessive insurance
     costs or uninsured claims would increase our operating loss and affect our
     financial condition.

     If We Cannot Attract and Retain Key Personnel, Then Our Business Will
     Suffer.

          Our success depends in large part upon our ability to attract and
     retain highly qualified scientific and management personnel. We face
     competition for such personnel from other companies, research and academic
     institutions and other entities. In an effort to conserve financial
     resources, we have been forced to implement reductions in our work force on
     two separate occasions. As a result of these and other factors, we may not
     be successful in hiring or retaining key personnel.

     Our Outstanding Warrants Have the Potential for Substantial Dilution of
     Stockholders.

          In June 2000, we issued warrants to purchase up to 3,348,915 shares of
     our common stock at $0.01 per share. If all 3,348,915 shares of common
     stock are issued under the warrants, then holders of common stock could
     experience significant dilution of their investment.

                                       7
<PAGE>

          The exercise price of the warrants that we issued in February 2000 is
     subject to reduction in the event the price of our common stock goes down
     at specified times in the future or if we issue additional securities at
     less than the warrant exercise price. If the exercise price of these
     warrants is reduced, there would also be an increase in the number of
     shares that could be issued upon exercise of the warrants. The warrants are
     currently exercisable for 1,382,816 shares of common stock. This number of
     shares could increase to 2,614,386 shares of common stock and the exercise
     price could be reduced to as low as $1.60 per share. Holders of common
     stock could therefore experience dilution of their investment upon exercise
     of these warrants.

     Our Corporate Documents and Michigan Law Contain Provisions That May Make
     It More Difficult For Us to Be Acquired.

          Our board of directors has the authority, without shareholder
     approval, to issue additional shares of preferred stock and to fix the
     rights, preferences, privileges and restrictions of these shares without
     any further vote or action by our shareholders. This authority, together
     with certain provisions of our charter documents, may have the effect of
     making it more difficult for a third party to acquire, or of discouraging a
     third party from attempting to acquire, control of our company. This effect
     could occur even if our shareholders consider the change in control to be
     in their best interest.

                                       8
<PAGE>

     We May Be Required to Redeem a Portion of Our Shares, Which Would
     Significantly Reduce Our Limited Cash Resources.

          The original purchasers of the shares and warrants issued in February
     2000 and June 2000 may require us to redeem some or all of those shares in
     the event that we fail to perform certain administrative activities that
     are within our control. These administrative activities include: issuing
     the shares of common stock upon the exercise of the warrants, transferring
     or instructing the transfer agent to transfer shares of common stock issued
     upon exercise of the warrants when required and removing any restrictive
     legends from such shares of common stock when required. Such a redemption
     could significantly reduce our limited capital resources.

     If We Do Not Continue to Meet the Nasdaq Listing Requirements Then Our
     Stock May Be Delisted From Nasdaq, Which Could Affect the Market Price and
     Liquidity of Our Stock.

          We are required to meet certain financial tests (including, but not
     limited to, a minimum bid price of our common stock of $1.00 and $4 million
     in tangible net worth) to maintain the listing of our common stock on the
     Nasdaq National Market. Within the last year, our common stock price has
     fallen below the minimum level for some periods and during other periods
     our tangible net worth has been below the amount required. During late
     December 2000, our stock price has again fallen below $1.00. In the future,
     our stock price or tangible net worth may fall below the Nasdaq
     requirements, or we may not comply with other listing requirements, with
     the result being that our common stock might be delisted. If that happened
     the market price and liquidity of our common stock would be impaired.

     Absence of Dividends Could Reduce Our Attractiveness to Investors.

          Some investors favor companies that pay dividends, particularly in
     market downturns. We have never paid cash dividends on our common stock and
     do not anticipate paying any cash dividends on our common stock in the
     foreseeable future. Therefore, your return on this investment will depend
     on your ability to sell our stock at a profit.

     Forward-Looking Statements

          This prospectus contains certain forward-looking statements within the
     meaning of Section 27A of the Securities Act and Section 21E of the
     Securities Exchange Act. These forward-looking statements include
     statements regarding:

               .    uncertainties related to potential strategic collaborations
                    with others;
               .    future capital needs and uncertainty of additional funding;
               .    uncertainties related to product development and
                    marketability;
               .    uncertainties related to clinical trials;
               .    manufacturing and supply uncertainties and dependence on
                    third parties;
               .    anticipation of future losses;
               .    limited sales and marketing capabilities;
               .    uncertainty of regulatory approval and extensive government
                    regulation;
               .    competition and technological change;
               .    uncertainty regarding patents and proprietary rights;
               .    no assurance of third party reimbursement;
               .    hazardous materials; and
               .    potential product liability and availability of insurance.

     These statements are subject to risks and uncertainties, including those
     set forth in this Risk Factors section, and actual results could differ
     materially from those expressed or implied in these statements. All
     forward-looking statements included in this prospectus are made as of the
     date hereof. We assume no obligation to update any such forward-looking
     statement or reason why actual results might differ.

                                       9
<PAGE>

                      WHERE YOU CAN FIND MORE INFORMATION

          We file annual, quarterly and special reports, proxy statements and
     other information with the SEC. You may read and copy any document we file
     at the SEC's public reference rooms located at Room 1024, 450 Fifth Street,
     N.W., Washington, D.C. 20549, at The Citicorp Center, 500 West Madison
     Street, Suite 1400, Chicago, Illinois 60661, and at Seven World Trade
     Center, Suite 1300, New York, New York 10048. Please call the SEC at 1-800-
     SEC-0330 for further information on the public reference rooms. Our filings
     with the SEC are also available to the public on the SEC's Internet web
     site at http://www.sec.gov.
             ------------------

          The SEC allows us to "incorporate by reference" the information we
     file with it, which means that we can disclose important information to you
     by referring you to those documents. The information incorporated by
     reference is considered to be part of this prospectus, and information that
     we file with the SEC later will automatically update and supersede the
     information in this prospectus or incorporated by reference. The following
     documents filed by us and any future filings made by us with the SEC under
     Sections 13(a), 13(c) 14 or 15(d) of the Securities Exchange Act of 1934,
     until we sell all of the common stock offered hereby, are incorporated by
     reference in this prospectus:

          1.   Our Annual Report on Form 10-K for the year ended June 30, 2000
               (Commission File No.: 000-22025);

          2.   Our Quarterly Report on Form 10-Q for the quarter ended September
               30, 2000 (Commission File No. 000-22025); and

          3.   Our Registration Statement on Form 8-A filed with the Commission
               on April 11, 1997 (Commission File No.: 000-22025).

          YOU MAY REQUEST A COPY OF THESE FILINGS, AT NO COST, BY WRITING OR
     TELEPHONING US AT AASTROM BIOSCIENCES, INC., 24 FRANK LLOYD WRIGHT DRIVE,
     P.O. BOX 376, ANN ARBOR, MICHIGAN 48106, TELEPHONE NUMBER (734) 930-5555,
     ATTENTION: CHIEF FINANCIAL OFFICER.

                                       10
<PAGE>

                             PLAN OF DISTRIBUTION

     We may offer our common stock:

          -    directly to purchasers;

          -    to or through underwriters;

          -    through dealers, agents or institutional investors; or

          -    through a combination of such methods.

     Regardless of the method used to sell the securities, we will provide a
     prospectus supplement or amendment that will disclose:

          -    the identity of any underwriters, dealers, agents or investors
               who purchase the securities;

          -    the material terms of the distribution, including the amount sold
               and the consideration paid;

          -    the amount of any compensation, discounts or commissions to be
               received by the underwriters, dealers or agents;

          -    the terms of any indemnification provisions, including
               indemnification from liabilities under the federal securities
               laws; and

          -    the nature of any transaction by an underwriter, dealer or agent
               during the offering that is intended to stabilize or maintain the
               market price of the securities.

     We may sell our common stock at fixed prices, which may change, at market
     prices prevailing at the time of sale, at prices related to prevailing
     market prices or at negotiated prices.

          In connection with the sale of our common stock, underwriters may
     receive compensation from us or from purchasers of our common stock in the
     form of discounts, concessions or commissions. Underwriters, dealers and
     agents that participate in the distribution of our common stock may be
     deemed to be underwriters. Discounts or commissions they receive and any
     profit on their resale of our common stock may be considered underwriting
     discounts and commissions under the Securities Act of 1933.

          We may agree to indemnify underwriters, dealers and agents who
     participate in the distribution of our common stock against various
     liabilities, including liabilities under the Securities Act of 1933. We may
     also agree to contribute to payments which the underwriters, dealers or
     agents may be required to make in respect of these liabilities. We may
     authorize dealers or other persons who act as our agents to solicit offers
     by various institutions to purchase our common stock from us under
     contracts which provide for payment and delivery on a future date. We may
     enter into these contracts with commercial and savings banks, insurance
     companies, pension funds, investment companies, educational and charitable
     institutions and others. If we enter into these agreements concerning any
     series of our common stock, we will indicate that in the prospectus
     supplement or amendment.

          In connection with an offering of our common stock, underwriters may
     engage in transactions that stabilize, maintain or otherwise affect the
     price of our common stock. Specifically, underwriters may over-allot in
     connection with the offering, creating a syndicate short position in our
     common stock for their own account. In addition, underwriters may bid for,
     and purchase, our common stock in the open market to cover short positions
     or to stabilize the price of our common stock. Finally, underwriters may
     reclaim selling concessions allowed for distributing our common stock in
     the offering if the underwriters repurchase previously distributed common
     stock in transactions to cover short positions, in stabilization
     transactions or otherwise. Any of these activities may stabilize or
     maintain the market price of our common stock above independent market
     levels. Underwriters are not required to engage in any of these activities
     and may end any of these activities at any time. Agents and underwriters
     may engage in transactions with, or perform services for, us and our
     affiliates in the ordinary course of business.

                                       11
<PAGE>

                                USE OF PROCEEDS

          We cannot guarantee that we will receive any proceeds in connection
     with this offering because we may choose not to issue any shares of common
     stock.

          Unless otherwise provided in a supplement or amendment to this
     prospectus, we intend to use any net proceeds from this offering, together
     with other available funds, for operating costs, capital expenditures and
     working capital needs and for other general corporate purposes.

          We have not specifically identified the precise amounts we will spend
     on each of these areas or the timing of these expenditures. The amounts
     actually expended for each purpose may vary significantly depending upon
     numerous factors, including the amount and timing of the proceeds from this
     offering, progress with clinical product development and other cell therapy
     application programs. In addition, expenditures may also depend on the
     establishment of new collaborative arrangements with other companies, the
     availability of other financing, and other factors.

          We anticipate that we will be required to raise substantial additional
     capital to continue to fund the clinical development of our cell therapy
     applications. Additional capital may be raised through additional public or
     private financing, as well as collaborative relationships, incurring debt
     and other available sources.

                                 LEGAL MATTERS

          The validity of the common stock offered hereby will be passed upon
     for Aastrom by Pepper Hamilton LLP, Detroit, Michigan acting as special
     counsel to Aastrom. Gray Cary Ware & Freidenrich LLP, San Diego,
     California, has acted as counsel to Aastrom in connection with this
     offering.

                                    EXPERTS

          The financial statements incorporated in this prospectus by reference
     to the Annual Report on Form 10-K for the year ended June 30, 2000, have
     been so incorporated in reliance on the report of PricewaterhouseCoopers
     LLP, independent accountants, given on the authority of said firm as
     experts in auditing and accounting.

                                       12
<PAGE>

                                    PART II

                    INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

     Other expenses in connection with the registration of the common stock
hereunder will be substantially as follows (all expenses other than the SEC
Registration Fee are estimates):

                                             Company
          Item                               Expense
          ----                               -------

          SEC Registration Fee.............  $  2,130
          Printing and engraving expenses    $  5,000
          Legal fees and expenses..........  $ 50,000
          Accounting fees and expenses.....  $ 10,000
          Nasdaq Filing Fees...............  $ 17,500
          Miscellaneous....................  $ 15,370
          -------------                      --------

               Total.......................  $100,000
               =====                         ========

ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     Sections 1561 through 1571 of the Michigan Business Corporation Act (the
"MBCA") authorize a corporation to grant or a court to award indemnity to
directors, officers, employees and agents in terms sufficiently broad to permit
such indemnification under certain circumstances for liabilities (including
reimbursement for expenses incurred) arising under the Securities Act of 1933.

     The Bylaws of the Registrant, provide that the Registrant shall, to the
fullest extent authorized or permitted by the MBCA, or other applicable law,
indemnify a director or officer who was or is a party or is threatened to be
made a party to any proceeding by or in the right of the Registrant to procure a
judgment in its favor by reason of the fact that such person is or was a
director, officer, employee or agent of the Registrant, against expenses,
including actual and reasonable attorneys' fees, and amounts paid in settlement
incurred in connection with the action or suit, if the indemnitee acted in good
faith and in a manner the person reasonably believed to be in, or not opposed
to, the best interests of the Registrant or its shareholders. This section also
authorizes the Registrant to advance expenses incurred by any agent of the
Registrant in defending any proceeding prior to the final disposition of such
proceeding upon receipt of an undertaking by or on behalf of the agent to repay
such amount unless it shall be determined ultimately that the agent is entitled
to be indemnified.

     The Bylaws also authorize the Registrant to purchase and maintain insurance
on behalf of any person who is or was a director, officer, employee or agent of
the Registrant against any liability asserted against or incurred by such person
in such capacity or arising out of such person's status as such, regardless of
whether the Registrant would have the power to indemnify such person against
such liability under the provisions of the MBCA.

     The Registrant has entered into an indemnification agreement with certain
of its directors, officers and other key personnel, which contains provisions
that may in some respects be broader than the specific indemnification
provisions contained under applicable law. The indemnification agreement may
require the Registrant, among other things, to indemnify such directors,
officers and key personnel against certain liabilities that may arise by reason
of their status or service as directors, officers or employees of the
Registrant, to advance the expenses incurred by such parties as a result of any
threatened claims or proceedings brought against them as to which they could be
indemnified and, to the maximum extent that insurance coverage of such
directors, officers and key employees under the Registrant's directors' and
officers' liability insurance policies is maintained.

                                     II-1
<PAGE>

     Section 1209 of the MBCA permits a Michigan corporation to include in its
Articles of Incorporation a provision eliminating or limiting a director's
liability to a corporation or its shareholders for monetary damages for breaches
of fiduciary duty. The enabling statute provides, however, that liability for
breaches of the duty of loyalty, acts or omissions not in good faith or
involving intentional misconduct or knowing violation of the law, or the receipt
of improper personal benefits cannot be eliminated or limited in this manner.
The Registrant's Restated Articles of Incorporation include a provision which
eliminates, to the fullest extent permitted by the MBCA, director liability for
monetary damages for breaches of fiduciary duty.

ITEM 16. EXHIBITS.

EXHIBIT
NUMBER              DESCRIPTION OF DOCUMENT
                    -----------------------

4.1*  Restated Articles of Incorporation
4.2*  Bylaws, as amended
5.1   Consent and Opinion of Pepper Hamilton LLP
23.1  Consent of PricewaterhouseCoopers LLP

23.2* Consent of Gray Cary Ware & Freidenrich LLP
23.3  Consent of Pepper Hamilton LLP (included in Exhibit 5.1)

24.1* Power of Attorney

*  Filed previously.

5.   ITEM 17. UNDERTAKING.

The undersigned Registrant hereby undertakes:

(1)  To file, during any period in which offers or sales are being made, a post-
     effective amendment to this registration statement:

(2)  To include any prospectus required by section 10(a)(3) of the Securities
     Act of 1933 (the "Securities Act");

(3)  To reflect in the prospectus any facts or events arising after the
     effective date of the registration statement (or the most recent post-
     effective amendment thereof) which, individually or in the aggregate,
     represent a fundamental change in the information set forth in the
     registration statement. Notwithstanding the foregoing, any increase or
     decrease in volume of securities offered (if the total dollar value of
     securities offered would not exceed that which was registered) and any
     deviation from the low or high end of the estimated maximum offering range
     may be reflected in the form of prospectus filed with the Commission
     pursuant to Rule 424(b) if, in the aggregate, the changes in volume and
     price represent no more than a 20% change in the maximum aggregate offering
     price set forth in the "Calculation of Registration Fee" table in the
     effective registration statement;

(4)  To include any material information with respect to the plan of
     distribution not previously disclosed in the registration statement or any
     material change to such information in the registration statement;
     provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if
     the information required to be included in a post-effective amendment by
     those paragraphs is contained in periodic reports filed by the Registrant
     pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of
     1934 that are incorporated by reference in the registration statement.

(5)  That, for the purpose of determining any liability under the Securities
     Act, each such post-effective amendment shall be deemed to be a new
     registration statement relating to the securities offered therein, and the
     offering of such securities at that time shall be deemed to be the initial
     bona fide offering thereof.

(6)  To remove from registration by means of a post-effective amendment any of
     the securities being registered which remain unsold at the termination of
     the offering.

                                     II-2
<PAGE>

     The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
Registrant's annual report pursuant to section 13(a) or section 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

     The undersigned Registrant hereby undertakes to deliver or cause to be
delivered with the prospectus, to each person to whom the prospectus is sent or
given, the latest annual report to security holders that is incorporated by
reference in the prospectus and furnished pursuant to and meeting the
requirements of Rule 14a-3 or Rule 14c-3 under the Securities Exchange Act of
1934; and, where interim financial information required to be presented by
Article 3 of Regulation S-X are not set forth in the prospectus, to deliver, or
cause to be delivered to each person to whom the prospectus is sent or given,
the latest quarterly report that is specifically incorporated by reference in
the prospectus to provide such interim financial information.

     Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers, and controlling persons of the
Registrant pursuant to the foregoing provisions, or otherwise, the Registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Securities Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a director, officer, or controlling person of the Registrant
in the successful defense of any action, suit, or proceeding) is asserted by
such director, officer, or controlling person in connection with the securities
being registered, the Registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Securities Act and will be governed by
the final adjudication of such issue.

The undersigned Registrant hereby undertakes that:
For the purposes of determining any liability under the Securities Act, the
information omitted from the form of prospectus filed as part of this
registration statement in reliance upon Rule 430A and contained in a form of
prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) or 497(h)
under the Securities Act shall be deemed to be part of the registration
statement as of the time it was declared effective.

     For the purposes of determining any liability under the Securities Act,
each post-effective amendment that contains a form of prospectus shall be deemed
to be a new registration statement relating to the securities offered therein,
and the offering of such securities at that time shall be deemed to be the
initial bona fide offering thereof.

                                     II-3
<PAGE>

                                  SIGNATURES

Pursuant to the requirements of the Securities Act, the Registrant certifies
that it has reasonable grounds to believe that it meets all of the requirements
of filing on Form S-3 and has duly caused this amended Registration Statement to
be signed on its behalf by the undersigned, thereunto duly authorized in the
City of Ann Arbor, State of Michigan, on December 29, 2000.

                                   AASTROM BIOSCIENCES, INC.

                                   By: /s/ R. Douglas Armstrong, Ph.D.
                                   -------------------------------------

                                        R. Douglas Armstrong, Ph.D.
                                        President and Chief Executive Officer
                                        (Principal Executive Officer)



Pursuant to the requirements of the Securities Act of 1933, this amended
Registration Statement has been signed below by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
          Signature                                                     Title
          ---------                                                     -----
          Date
          ----

<S>                                        <C>                                                           <C>

/s/ R. Douglas Armstrong, Ph.D.            President, Chief Executive Officer and Chairman               December 29, 2000
--------------------------------
R. Douglas Armstrong, Ph.D.                of the Board of Directors (Principal Executive
                                           Officer)

/s/ Todd E. Simpson                        Vice President, Finance and Administration, Chief             December 29, 2000
--------------------------------
Todd E. Simpson                            Financial Officer, Secretary and Treasurer
                                           (Principal Financial and Accounting Officer)

*                                          Director                                                      December 29, 2000
--------------------------------
Fabrizio Bonanni

*                                          Director                                                      December 29, 2000
--------------------------------
Mary L. Campbell

*                                          Director                                                      December 29, 2000
--------------------------------
Arthur F. Staubitz

*                                          Director                                                      December 29, 2000
--------------------------------
Joseph A. Taylor

*                                          Director                                                      December 29, 2000
--------------------------------
Alan M. Wright
</TABLE>

* By: R. Douglas Armstrong
      --------------------------
      Attorney in Fact
                                     II-4
<PAGE>

                               INDEX TO EXHIBITS

EXHIBIT
NUMBER    DESCRIPTION OF DOCUMENT
          -----------------------

4.1*      Restated Articles of Incorporation
4.2*      Bylaws, as amended
5.1       Consent and Opinion of Pepper Hamilton LLP
23.1      Consent of PricewaterhouseCoopers LLP

23.2*     Consent of Gray Cary Ware & Freidenrich LLP
23.3      Consent of Pepper Hamilton LLP (included in Exhibit 5.1)

24.1*     Power of Attorney

*  Filed previously

                                     II-5


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission