PROSPECTUS SUPPLEMENT                           Filed pursuant to Rule 424(b)(3)
To Prospectus Dated May 3, 1996,                       Registration No. 333-2253
As Supplemented to Date

                                  $80,500,000

                                     NABI

                6 1/2% Convertible Subordinated Notes due 2003
                                      and
               Shares of Common Stock, Par Value $.10 Per Share,
                       Issuable Upon Conversion Thereof

     This Prospectus Supplement (the "Supplement") relates to the resale by
PaineWebber Inc. ("PaineWebber") of up to $423,000 aggregate principal amount of
6 1/2% Convertible Subordinated Notes due 2003 (the "Notes") of NABI, a Delaware
corporation (the "Company"), originally issued in private placements consummated
on February 7 and March 6, 1996 (the "Debt Offering"), pursuant to NABI's
Registration Statement on Form S-3 (No. 333-2253) (the "Registration
Statement"). This Supplement should be read in conjunction with the Prospectus
dated May 3, 1996, as supplemented to date (the "Prospectus"), to be delivered
with this Supplement. All capitalized terms used but not defined in this
Supplement shall have the meanings given them in the Prospectus.

     Based on information provided to the Company, the aggregate principal
amount of the Notes that are currently beneficially owned by PaineWebber is
$423,000, all of which may be sold at this time pursuant to the Prospectus as
supplemented hereby. Additional information concerning the Selling
Securityholders (including PaineWebber) may be set forth from time to time in
additional supplements to the Prospectus. The total outstanding aggregate
principal amount of the Notes is $80,500,000.

     The closing price of the Company's Common Stock as reported on The Nasdaq 
National Market on December 3, 1996 was $9.875 per share.

     The Notes will be subordinated to all existing and future Senior 
Indebtedness of the Company. At October 31, 1996, Senior Indebtedness was
approximately $6,700,000. The Indenture contains no limitations on the
incurrence of additional indebtedness or other liabilities by the Company.

     The Notes are neither listed on a national securities exchange nor quoted
on an automated quotation system. However, the Notes are eligible for trading
in the Private Offerings, Resales and Trading through Automated Linkages
("PORTAL") Market. Notes are sold pursuant to the Registration Statement will no
longer be eligible for trading in the PORTAL Market.

         The date of this Prospectus Supplement is December 4, 1996.