Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Common Stock, $0.10 par value, of Nabi Biopharmaceuticals.  This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated:  June 29, 2012

THE MANGROVE PARTNERS FUND, L.P.
By:	MANGROVE CAPITAL,
	General Partner
By:	/s/ Nathaniel August
	Name:	Nathaniel August
	Title:	Director

MANGROVE PARTNERS
By:	/s/ Nathaniel August
	Name:	Nathaniel August
	Title:	Director

MANGROVE CAPITAL
By:	/s/ Nathaniel August
	Name:	Nathaniel August
	Title:	Director

/s/ Nathaniel August

NATHANIEL AUGUST