Exhibit 99.1

IN THE UNITED STATES BANKRUPTCY COURT

FOR THE DISTRICT OF DELAWARE

NOTICE OF FILING OF DEBTORS’ MONTHLY OPERATING REPORT

FOR THE PERIOD OF MAY 1, 2014 THROUGH MAY 31, 2014

PLEASE TAKE NOTICE that the debtors and debtors-in-possession in the above-captioned

cases (together, the “Debtors”) filed today the Debtors’ Monthly Operating Report for the Period of May 1,

2014 through May 31, 2014, a copy of which is attached hereto as Exhibit A (the “Monthly Operating Report”).

EXHIBIT A

Monthly Operating Report

UNITED STATES BANKRUPTCY COURT

FOR THE DISTRICT OF DELAWARE

MONTHLY OPERATING REPORT

** Explaination and Affidavit/Supplement are attached as a part of the Company’s General Notes

I declare under penalty of perjury (28 U.S.C. Section 1746) that this report and the attached documents are true and correct to the best of my knowledge and belief.

NOTES TO THE MONTHLY OPERATING REPORT

General Notes

Debtors. Debtor Savient Pharmaceuticals, Inc. is referred to herein as “Savient” or “SPI,” and Debtor Savient Pharma Holdings, Inc. is referred to herein as “SPHI.”

Debtor-in-Possession Financial Statements. The Debtors’ financial statements and supplemental information contained herein are unaudited, preliminary and may not comply with generally accepted accounting principles in the United States of America (“U.S. GAAP”) in all material respects.

Accounting Standards Codification, (“ASC”) 852-10, Reorganizations, which incorporated the guidance in American Institute of Certified Public Accountants Statement of Position 90-7, Financial Reporting by Entities in Reorganization under the Bankruptcy Code, (SOP 90-7), is applicable to companies in chapter 11 and generally does not change the manner in which financial statements are prepared. It does require, however, that the financial statements for periods subsequent to the filing of the chapter 11 petition distinguish transactions and events that are directly associated with the reorganization from the ongoing operations of business.

The Debtors’ financial statements contained herein have been prepared in accordance with the guidance in ASC 852-10. The unaudited financial statements have been derived from the books and records of the Debtors. This information, however, has not been subject to procedures that would typically be applied to financial information presented in accordance with U.S GAAP, and upon the application of such procedures, the Debtors believe that the financial information could be subject to changes, and these changes could be material. The information furnished in this report includes primarily normal recurring adjustments, but does not include all of the adjustments that would be typically made in accordance with U.S. GAAP.

The results of operations contained herein are not necessarily indicative of results that are expected from any other period or for the full year and may not necessarily reflect the combined results of operations, financial position and cash flows of the Debtors in the future.

Intercompany Transactions. Receivables and payables between the Debtors and/or Non-Debtors have not been eliminated.

Liabilities Subject to Compromise. As a result of the chapter 11 filings, the payment of prepetition indebtedness is subject to compromise or other treatment under a plan of reorganization or liquidation.

The determination of how liabilities ultimately will be settled and treated cannot be made until the United States Bankruptcy Court for the District of Delaware approves a chapter 11 plan of reorganization or liquidation. Accordingly, the ultimate amount of such liabilities is not determinable at this time. Revenues, expenses, realized gains and losses and provisions for losses that can be directly associated with the reorganization and restructuring of the business must be reported separately as reorganization items in the Debtors’ statements of operations.

The Debtors’ balance sheets, in addition, must distinguish prepetition liabilities subject to compromise from both those prepetition liabilities that are not subject to compromise and from postpetition liabilities. Liabilities that may be affected by a plan of reorganization or liquidation must be reported at the amounts expected to be allowed, even if they may be settled for lesser amounts. In addition, cash provided by reorganization items must be disclosed separately in the Debtors’ statements of cash flows. The amounts currently classified as liabilities subject to compromise are preliminary and may be subject to future adjustments depending on Court actions, further developments with respect to disputed claims, determinations of the secured status of certain claims, the values of any collateral securing such claims, rejection of executory contracts, continued reconciliation and other events.

While in bankruptcy, the Debtors expect their financial results to continue to be volatile as asset impairments, asset dispositions, contract terminations and rejections and claims assessments may significantly impact the Debtors’ financial statements. As a result, the Debtors’ historical financial performance is likely not indicative of its financial performance after the date of the chapter 11 filings.

Notes to MOR-1a

Copies of Bank Statements and Cash Disbursements Journals. The copies of the Debtors’ bank statements and cash disbursement journals are voluminous and not included herein, but will be provided upon request.

Notes to MOR-4

Copies of IRS Form 6123; Tax Returns. To be provided upon request.

Savient MOR-4. The postpetition accounts payable reported for Debtor Savient Pharmaceuticals, Inc. represent trade vendor invoices that have been entered into the Debtor’s accounts payable system and does not include accruals for invoices not yet received or approved.

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