PharmAthene Files Registration Statement On Form S-4 With The Securities and Exchange Commission

 PharmAthene Files Registration Statement On Form S-4 With The Securities and
                             Exchange Commission

PR Newswire

ANNAPOLIS, Md., Sept. 9, 2013

ANNAPOLIS, Md., Sept. 9, 2013 /PRNewswire/ -- PharmAthene, Inc. (NYSE MKT:
PIP) announced today that it has filed a registration statement on Form S-4
with the Securities and Exchange Commission (SEC) containing a preliminary
proxy statement / prospectus / consent solicitation in connection with the
previously announced merger between PharmAthene, Inc., and Theraclone
Sciences, Inc., a privately-held monoclonal antibody (mAb) discovery and
development company.

Under the terms of the merger agreement, a wholly-owned subsidiary of
PharmAthene will merge into Theraclone in an all-stock transaction.
PharmAthene will issue shares of PharmAthene common stock to Theraclone
stockholders such that upon completion of the merger, the PharmAthene and
Theraclone security holders will each own 50.0% of the outstanding equity of
the combined company on an as converted and fully diluted basis (but excluding
PharmAthene warrants and options with an exercise price of more than $2.50 per
share). If no options or warrants of either PharmAthene or Theraclone are
exercised prior to the completion of the merger, PharmAthene and Theraclone
security holders would own, respectively, approximately 54% and 46% of the
outstanding shares of common stock of the combined company.

The registration statement has not yet been declared effective and the
information contained in the filing is subject to change. No shares of
PharmAthene common stock may be issued in connection with the merger prior to
the time the registration statement becomes effective.

Important Additional Information about the Proposed Merger

This communication is being made in respect of the proposed merger involving
Theraclone and PharmAthene. On August 1, 2013, PharmAthene filed with the SEC
a current report on Form 8-K, which includes the merger agreement and related
documents. As stated above, on September 9, 2013, PharmAthene filed a
registration statement on Form S-4 with the SEC, which contains a preliminary
proxy statement/prospectus/consent solicitation and other relevant materials,
and plans to file with the SEC other documents regarding the proposed
transaction. Once the registration statement has been declared effective, the
final joint proxy statement / prospectus / consent solicitation will be sent
to the stockholders of PharmAthene and Theraclone in connection with the
stockholder votes on matters relating to the proposed transaction. The proxy
statement/prospectus/consent solicitation contains information about
PharmAthene, Theraclone, the proposed transaction, and related matters.

THE MERGER AND RELATED MATTERS. In addition to receiving the proxy
statement/prospectus/consent solicitation and proxy card by mail, stockholders
will also be able to obtain the proxy statement/prospectus/consent
solicitation, as well as other filings containing information about
PharmAthene, without charge, from the SEC's website ( or,
without charge, by contacting Stacey Jurchison at PharmAthene at (410)

No Offer or Solicitation

This communication is not intended to and does not constitute an offer to sell
or the solicitation of an offer to subscribe for or buy or an invitation to
purchase or subscribe for any securities or the solicitation of any vote or
approval in any jurisdiction in connection with the merger or otherwise, nor
shall there be any sale, issuance or transfer of securities in any
jurisdiction in contravention of applicable law. No offer of securities shall
be made except by means of a prospectus meeting the requirements of Section 10
of the Securities Act of 1933, as amended.

Participants in Solicitation

PharmAthene and its executive officers and directors may be deemed to be
participants in the solicitation of proxies from PharmAthene's stockholders
with respect to the matters relating to the proposed merger. Theraclone may
also be deemed a participant in such solicitation. Information regarding
PharmAthene's executive officers and directors is available in Amendment No. 1
to PharmAthene's proxy statement on Schedule 14A, filed with the SEC on May 9,
2013. Information regarding such executive officers and directors and
regarding any interest that PharmAthene, Theraclone or any of the executive
officers or directors of PharmAthene or Theraclone may have in the transaction
will be set forth in the final proxy statement/prospectus/consent solicitation
that PharmAthene will file with the SEC in connection with its stockholder
vote on matters relating to the proposed transaction. Stockholders will be
able to obtain this information by reading the final proxy
statement/prospectus/consent solicitation when it becomes available.

About PharmAthene

PharmAthene is a leading biodefense company engaged in the development and
commercialization of next generation medical countermeasures against
biological and chemical threats. PharmAthene's current biodefense portfolio
includes the following product candidates:

  oSparVax^® - a next generation recombinant protective antigen (rPA) anthrax
  orBChE bioscavenger - a medical countermeasure for nerve agent poisoning by
    organophosphorous compounds, including nerve gases and pesticides
  oValortim^® - a fully human monoclonal antibody for the prevention and
    treatment of anthrax infection

In addition, in May 2013, the Delaware Supreme Court issued its ruling on the
appeal in our litigation with SIGA Technologies, affirming the Court of
Chancery's finding that SIGA was liable for breach of contract, reversing its
finding of promissory estoppel, and remanding the case back to the Court of
Chancery to reconsider the appropriate remedy and award of attorney's fees and
expert witness costs in light of the Supreme Court's opinion. For more
information about PharmAthene, please visit 

About Theraclone Sciences

Theraclone is a biopharmaceutical company focused on the discovery and
development of novel, monoclonal antibody therapeutics for diseases that are
devastating for patients and their families and which are a significant threat
to human health. Theraclone leverages its proprietary antibody discovery
technology, I‑STAR (In‑Situ Therapeutic Antibody Rescue), to identify rare
human antibodies that may be developed into antibody product candidates that
are potentially safer and more effective than current therapies. Theraclone
has a portfolio of innovative antibodies in clinical and preclinical
development targeting serious medical conditions with a significant unmet
medical need and a primary focus on infectious disease and cancer, which

  oTCN-032 - a recombinant fully human monoclonal antibody for the treatment
    of patients hospitalized with serious influenza
  oTCN-202 - a recombinant fully human monoclonal antibody for the treatment
    and prevention of cytomegalovirus, or CMV infections

For more information about Theraclone, please visit

Forward-Looking Statement Disclaimer

Except for the historical information presented herein, matters discussed may
constitute forward-looking statements within the meaning of the Private
Securities Litigation Reform Act of 1995 that are subject to certain risks and
uncertainties that could cause actual results to differ materially from any
future results, performance or achievements expressed or implied by such
statements. Statements that are not historical facts, including statements
preceded by, followed by, or that include the words "will"; "potential";
"believe"; "anticipate"; "intend"; "plan"; "expect"; "estimate"; "could";
"may"; "should"; or similar statements are forward-looking statements. Such
statements include, but are not limited to those referring to the potential
for the generation of value, ability to leverage funding sources, potential
for revenue, and potential for growth. PharmAthene disclaims any intent or
obligation to update these forward-looking statements. Risks and
uncertainties include, among others, failure to obtain necessary shareholder
approval for the proposed merger with Theraclone and the matters related
thereto; failure of either party to meet the conditions to closing of the
transaction; delays in completing the transaction and the risk that the
transaction may not be completed at all; failure to realize the anticipated
benefits from the transaction or delay in realization thereof; the businesses
of PharmAthene and Theraclone may not be combined successfully, or such
combination may take longer, be more difficult, time-consuming or costly to
accomplish than expected; operating costs and business disruption during the
pendency of and following the transaction, including adverse effects on
employee retention and on business relationships with third parties; the
combined company's need for and ability to obtain additional financing; risk
associated with the reliability of the results of the studies relating to
human safety and possible adverse effects resulting from the administration of
the combined company's product candidates; unexpected funding delays and/or
reductions or elimination of U.S. government funding for one or more of the
combined company's development programs; the award of government contracts to
competitors; unforeseen safety issues; unexpected determinations that these
product candidates prove not to be effective and/or capable of being marketed
as products; as well as risks detailed from time to time in PharmAthene's Form
10-K and quarterly reports on Form 10-Q under the caption "Risk Factors" and
in its other reports filed with the U.S. Securities and Exchange Commission
(the "SEC"). In particular, there is significant uncertainty regarding the
level and timing of sales of Arestvyr™ and when and whether it will be
approved by the U.S. FDA and corresponding health agencies around the world.
PharmAthene cannot predict with certainty if or when SIGA will begin
recognizing profit on the sale thereof and there can be no assurance that any
profits received by SIGA will be significant. In its May 2013 decision, the
Delaware Supreme Court reversed the remedy ordered by the Court of Chancery
and remanded the issue of a remedy back to the trial court for reconsideration
in light of the Supreme Court's opinion. As a result, there can be no
assurance that the Chancery Court will issue a remedy that provides
PharmAthene with a financial interest in Arestvyr™and related products or any
remedy. In addition, significant additional research work, non-clinical
animal studies, clinical trials, and manufacturing development work remain to
be done with respect to all of PharmAthene's product candidates. At this point
there can be no assurance that any of these product candidates will be shown
to be safe and effective and approved by regulatory authorities for use in
humans. Copies of PharmAthene's public disclosure filings are available from
its investor relations department and its website under the investor relations
tab at

SOURCE PharmAthene, Inc.

Contact: For PharmAthene, Inc.: Stacey Jurchison, Phone: (410) 269-2610,; For Theraclone Sciences, Inc.: Michelle
Avery, Phone: (781) 235-3060,
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