Filed Pursuant to Rule 424(b)(3)
Registration No. 333-117022
ADVENTRX PHARMACEUTICALS, INC.
SUPPLEMENT TO PROSPECTUS DATED SEPTEMBER 27, 2004
This Supplement, dated May 8, 2007, supplements certain information contained in our
prospectus dated September 27, 2004 (the “Prospectus”). This supplement is not complete without,
and may not be delivered or utilized except in connection with, the Prospectus, including any
amendments or supplements thereto.
The information contained in the table under the caption “Selling Security Holders” beginning
on page 10 of the Prospectus is hereby supplemented by: (i) adding to the table the selling
security holder set forth below under Schedule 1, and (ii) amending and restating the holdings of
the selling security holders set forth below under Schedule 2.
SCHEDULE 1
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Shares Owned |
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Percent Owned |
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Shares Owned |
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Percent |
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Before |
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Before |
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Shares Being |
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Upon Completion |
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Owned After |
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Offering |
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Offering(1) |
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Offered(2) |
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Of Offering |
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Offering(1) |
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Vicis Capital
Master Fund |
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1,031,351 |
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1.15 |
%† |
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116,400 |
(117) |
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914,951 |
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1.02 |
%† |
(117) Includes 116,400 shares of our common stock issuable upon exercise of warrants held
by this entity, all of which will be offered.
† The percentage ownership of common stock is based on 89,706,739 shares of our common stock
outstanding as of April 30, 2007. Options and warrants to purchase our common stock that are
presently exercisable or exercisable within 60 days of April 30, 2007, even if such options or
warrants may otherwise be subject to restriction on exercise, are included in the total number of
shares beneficially owned for the selling security holder holding those options or warrants and are
considered outstanding for the purpose of calculating percentage ownership of that particular
selling security holder.
SCHEDULE 2
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Percent Owned |
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Shares |
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Shares Owned |
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Percent |
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Shares Owned |
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Before |
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Being |
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Upon Completion Of |
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Owned After |
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Before Offering |
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Offering(1) |
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Offered(2) |
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Offering |
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Offering(1) |
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North Sound
Legacy
International Ltd. |
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North Sound Legacy
Institutional Fund
LLC |
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North Sound Legacy
Fund LLC |
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— |
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Information concerning the selling security holders is based upon information provided to us
by the security holders. This information may change from time to time and any changed information
will be set forth in future prospectus supplements, if and when necessary. Additionally, the
selling security holders identified above and in the Prospectus may have sold, transferred or
otherwise disposed of all or a portion of their shares of our common stock since the date on which
they last provided us with information about their holdings.