AMAG Pharmaceuticals Announces Pricing of $175 Million of 2.50% Convertible Senior Notes Due 2019

AMAG Pharmaceuticals Announces Pricing of $175 Million of 2.50% Convertible
Senior Notes Due 2019

WALTHAM, Mass., Feb. 12, 2014 (GLOBE NEWSWIRE) -- AMAG Pharmaceuticals, Inc.
(Nasdaq:AMAG) today announced the pricing of $175 million aggregate principal
amount of 2.50% Convertible Senior Notes due 2019 (the "notes") in an
underwritten public offering (the "offering") registered under the Securities
Act of 1933, as amended. The size of the transaction was increased from the
previously announced aggregate principal amount of $150 million. J.P. Morgan
Securities LLC and Morgan Stanley & Co. LLC are acting as book-running
managers and Cowen and Company, LLC and Robert W. Baird & Co. Incorporated are
acting as co-managers for the offering. AMAG has granted the underwriters the
option to purchase, exercisable within a 30-day period, up to an additional
$25 million principal amount of notes solely to cover over-allotments, if any.
The offering is expected to close on February 14, 2014, subject to customary
closing conditions.

Interest on the notes will be paid semiannually in arrears on February 15 and
August 15 of each year at the rate of 2.50% per year, beginning on August 15,
2014. The notes will mature on February 15, 2019, unless earlier repurchased
or converted in accordance with their terms prior to such date. AMAG will not
have the right to redeem the notes prior to maturity. Prior to May 15, 2018,
the notes will be convertible at the option of holders of the notes only upon
satisfaction of certain conditions and during certain periods, and thereafter,
at any time until the close of business on the second scheduled trading day
immediately preceding the maturity date. Upon conversion, holders of the notes
will receive shares of AMAG's common stock, cash or a combination thereof, at
AMAG's election. The conversion rate for the notes will initially be 36.9079
shares of AMAG's common stock per $1,000 principal amount of notes, which is
equivalent to an initial conversion price of approximately $27.09 per share,
and is subject to adjustment under the terms of the notes. This represents a
premium of approximately 35% over the last reported sale price of $20.07 per
share of AMAG's common stock on The NASDAQ Global Select Market on February
11, 2014. Holders of the notes may require AMAG to repurchase their notes upon
the occurrence of a fundamental change prior to maturity for cash at a
repurchase price equal to 100% of the principal amount of the notes to be
repurchased plus accrued and unpaid interest, if any.

In connection with the pricing of the notes, AMAG entered into privately
negotiated convertible note hedge transactions with one or more financial
institutions, which included one or more of the underwriters or their
respective affiliates (the "option counterparties"). The convertible note
hedge transactions are expected generally to reduce the potential dilution to
AMAG's common stock and/or offset cash payments due upon conversion of the
notes in the event that the market price per share of AMAG's common stock, as
measured under the terms of the convertible note hedge transactions, is
greater than the strike price of the convertible note hedge transactions
(which corresponds to the initial conversion price of the notes and is subject
to certain adjustments substantially similar to those contained in the notes).
In addition, in order to partially offset the cost of the convertible note
hedge transactions, AMAG will issue warrants to the option counterparties at a
higher strike price. The warrants would separately have a dilutive effect to
the extent that the market value per share of AMAG's common stock exceeds the
applicable strike price of the warrants. If the underwriters exercise their
over-allotment option, AMAG may enter into additional convertible note hedge
and warrant transactions.

AMAG has been advised that, in connection with the convertible note hedge and
warrant transactions, the option counterparties or their affiliates have
entered into, or expect to enter into, various derivative transactions with
respect to AMAG's common stock and may, from time to time, enter into or
unwind various derivative transactions with respect to AMAG's common stock
and/or purchase or sell AMAG's common stock or other securities of AMAG in
secondary market transactions (and are likely to do so during any observation
period relating to a conversion of notes).These activities may have
increased, or could, following the pricing of the notes, increase (or reduce
the size of any decrease in) the price of AMAG's common stock, and could also
cause or avoid an increase or a decrease in the price of AMAG's common stock
at any time prior to the maturity date.

AMAG estimates that the net proceeds from the offering of the notes will be
approximately $169.1 million (or approximately $193.3 million if the
underwriters exercise their over-allotment option in full), after deducting
fees and estimated expenses. AMAG expects to use a portion of the net proceeds
from the offering of the notes to pay the cost of the convertible note hedge
transactions (after such cost is partially offset by the proceeds from the
sale of the warrants). AMAG intends to use the remainder of the net proceeds
from the offering for working capital and other general corporate purposes,
including to fund possible acquisitions of, or investments in, complementary
businesses, products, services and technologies. AMAG has not entered into any
agreements or commitments with respect to any acquisitions or investments at
this time.

The offering is being made pursuant to AMAG's shelf registration statement
(including a prospectus) previously filed with the Securities and Exchange
Commission ("SEC") on November 6, 2013, which was declared effective by the
SEC on November 18, 2013, and a preliminary prospectus supplement related to
the notes, filed with the SEC on February 10, 2014, and a related free writing
prospectus. AMAG intends to file a final prospectus supplement setting forth
the terms of the notes with the SEC. Investors should read the prospectus and
the preliminary prospectus supplement including the documents incorporated by
reference therein, and any free writing prospectus related to the offering for
more complete information about AMAG and the offering. These documents may be
obtained for free by visiting EDGAR on the SEC website at
Alternatively, copies may be obtained from J.P. Morgan Securities LLC (c/o
Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, New York
11717 or by calling 1-866-803-9204) or from Morgan Stanley & Co. LLC (Attn:
Prospectus Department, 180 Varick Street, 2nd Floor, New York, New York 10014,
by calling (866) 718-1649 or by emailing

This press release does not constitute an offer to sell or a solicitation of
an offer to buy, nor shall there be any offer or sale of, the notes or the
shares of AMAG's common stock issuable upon conversion of the notes, if any,
in any state or jurisdiction in which the offer, solicitation, or sale of the
notes would be unlawful prior to the registration or qualification thereof
under the securities laws of any such state or jurisdiction. Any offers,
solicitations of offers to buy, or sales of the notes will only be made
pursuant to the registration statement filed with and declared effective by
the SEC, including a prospectus and a related preliminary prospectus

About AMAG

AMAG Pharmaceuticals, Inc. is a specialty pharmaceutical company that markets
Feraheme® (ferumoxytol) Injection and MuGard® Mucoadhesive Oral Wound Rinse in
the United States. AMAG Pharmaceuticals and Feraheme are registered trademarks
of AMAG Pharmaceuticals, Inc.Rienso is a trademark of Takeda Pharmaceutical
Company Limited.MuGard® is a registered trademark of Access Pharmaceuticals,

Safe Harbor Statement

This press release contains forward-looking statements within the meaning of
the Private Securities Litigation Reform Act of 1995 and other federal
securities laws. Any statements contained herein which do not describe
historical facts, including but not limited to statements regarding: the
anticipated use of proceeds of the offering and the timing of completion of
the offering, are forward-looking statements which involve risks and
uncertainties that could cause actual results to differ materially from those
discussed in such forward-looking statements.

Such risks and uncertainties include, among others, (1) uncertainties
regarding the likelihood and timing of potential approval of Feraheme in the
U.S. in the broader iron deficiency anemia (IDA) indication, (2) the
possibility that following review by the U.S. Food and Drug Administration
(FDA) of post-marketing safety data, including reports of serious anaphylaxis,
cardiovascular events, and death, the FDA will request additional technical or
scientific information, new studies or reanalysis of existing data, on-label
warnings, post-marketing requirements/commitments or risk evaluation and
mitigation strategies (REMS) in the current IDA chronic kidney disease
(CKD)indication for Feraheme, (3) uncertainties regarding AMAG's and Takeda's
ability to successfully compete in the intravenous iron replacement market
both in the U.S. and outside the U.S., including the European Union (EU), as a
result of limitations, restrictions or warnings in Feraheme's/Rienso's current
or future label that put Feraheme/Rienso at a competitive disadvantage, (4)
uncertainties regarding Takeda's ability to obtain regulatory approval for
Feraheme in Canada, and Rienso in the EU, in the broader IDA patient
population, (5) the possibility that significant safety or drug interaction
problems could arise with respect to Feraheme/Rienso and in turn affect sales,
or AMAG's ability to market the product both in the U.S. and outside of the
U.S., including the EU, (6) uncertainties regarding the manufacture of
Feraheme/Rienso or MuGard, (7) uncertainties relating to AMAG's patents and
proprietary rights, both in the U.S. and outside of the U.S., (8) the risk of
an Abbreviated New Drug Application (ANDA) filing following the FDA's recently
published draft bioequivalence recommendation for ferumoxytol, (9) changes in
the price of AMAG's common stock, (10) changes in the convertible note and
other capital markets and (11) other risks identified in our Securities and
Exchange Commission (SEC) filings, including AMAG's Annual Report on Form 10-K
for the year ended December 31, 2013 and subsequent filings with the SEC. AMAG
cautions you not to place undue reliance on any forward-looking statements,
which speak only as of the date they are made. AMAG disclaims any obligation
to publicly update or revise any such statements to reflect any change in
expectations or in events, conditions or circumstances on which any such
statements may be based, or that may affect the likelihood that actual results
will differ from those set forth in the forward-looking statements.

CONTACT: AMAG Pharmaceuticals, Inc. Contact:
         Amy Sullivan, 617-498-3303

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