SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ----------- FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 December 19, 1997 (Date of Report - earliest event reported) DURA PHARMACEUTICALS, INC. (Exact name of registrant as specified in its charter) DELAWARE 000-19809 95-3645543 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) File Number) Identification No.) 7475 LUSK BOULEVARD, SAN DIEGO, CALIFORNIA 92121 (Address of principal executive offices) (Zip Code) REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE IS (619) 457-2553 Page 1 Item 2. Acquisition or Disposition of Assets On December 19, 1997, Dura Pharmaceuticals, Inc. (the "Company" or "Dura") acquired all of the outstanding shares of callable common stock of Spiros Development Corporation ("Spiros Corp."), a separate, private company. Spiros Corp. was formed in December 1995 to fund the development of a proprietary pulmonary drug delivery system, Spiros-TM-, for use with currently marketed asthma drugs. Dura acquired all of the outstanding shares of Spiros Corp. by giving notice of exercise the purchase option for the Spiros Corp. callable common stock on November 6, 1997. The purchase option was originally acquired in 1995 from Spiros Corp.'s shareholders in exchange for the issuance to such shareholders of warrants to purchase Dura's common stock. The purchase price of $45,707,000 for the outstanding securities of Spiros Corp., consisting of callable common stock and options, was paid by the issuance of 896,606 shares of Dura common stock valued at $43,755,000 and a cash payment of $1,952,000 from Dura's existing cash and cash equivalents. Dura filed a registration statement on Form S-3 with respect to the resale of the shares of Dura common stock issued in payment of the option exercise, which was declared effective on December 18, 1997. The acquistion was consummated based on the terms set forth in (i) Section 9 of the Purchase Agreement dated December 29, 1995 between Dura, Spiros Corp. and the Spiros Corp. shareholders, (ii) Article IV of the Restated Certificate of Incorporation of Spiros Corp. and (iii) the Agreement and Plan of Merger dated December 18, 1997 between Dura, Spiros Corp. and SDC Acquisition Corp. ("SDC Acquisition"), a Delaware corporation. The acquistion was effected through the merger of Spiros Corp. with SDC Acquisition, a wholly-owned subsidiary of Dura, which was effective on December 19, 1997. As a result of the acquisition, Spiros Corp. is now a wholly-owned subsidiary of Dura. The acquisition has been treated as a purchase for accounting purposes and, accordingly, the Company has allocated the purchase price to the fair value of the net assets acquired. The net assets acquired consisted of approximately $1.0 million in cash; accordingly, the excess purchase price over the fair value of the net assets acquired was $44.7 million. This amount was allocated to in-process technology and was expensed by Dura as a one-time non-cash charge in December 1997. Spiros Corp.'s activities prior to the acquisition consisted of developing Spiros-TM- for use with three existing asthma drugs licensed from Dura. The development activities of Spiros Corp. were being performed and managed under a contract with Dura. Two directors of Spiros Corp. are officers and directors of Dura. In December 1997, Dura and Spiros Corp. licensed certain rights to specified compounds for use with Spiros-TM- to Spiros Development Corporation II, Inc. ("Spiros Corp. II"), a separate, newly-formed corporation (see Item 5 herein). The foregoing description of the acquisition is qualified in its entirety by reference to the exhibits attached hereto and incorporated herein by reference. Item 5. Other Events On December 22, 1997, Dura contributed $75.0 million in cash to Spiros Corp. II, and Dura and Spiros Corp. II completed a Public offering of 6,325,000 Units. Each Unit consisted of one share of callable common stock of Spiros Corp. II and one warrant to purchase one-fourth of one share of common stock of Dura. As a result of the offering, warrants to purchase an aggregate of 1,581,250 shares of Dura common stock at $54.84 per share were issued to Spiros Corp. II shareholders. Dura has the right, through December 31, 2002, to purchase all of the shares of Spiros Corp. II callable common stock at predetermined prices, beginning at $24.01 per share, or an aggregate of $151.9 million, 2 through December 31, 1999 and increasing on a quarterly basis thereafter to a maximum of $45.95 per share, or an aggregate of $290.6 million, on December 31, 2002. The purchase option exercise price may be paid in cash or shares of Dura common stock, or any combination of the foregoing, at Dura's sole discretion. In addition, Dura has the option, through specified dates, to acquire Spiros Corp. II's exclusive rights for the use of Spiros with (i) the asthma drug albuterol and (ii) a second asthma drug being developed by Spiros Corp. II, to be selected by Dura. A one-time purchase option expense of $75.0 million, representing the cash contributed to Spiros Corp. II, was recorded by Dura in December 1997. The Company will also record a warrant subscription receivable and a corresponding increase to paid-in capital for the estimated fair value of the warrants issued. Dura and Spiros Corp. II have entered into certain technology license, development, manufacturing and marketing, and services agreements, under which Spiros Corp. II will contract with Dura for the ongoing development of Spiros with specified asthma drugs. Future payments to be received by Dura from Spiros Corp. II for the development of Spiros will be prorated between contract revenue and the warrant subscription receivable. The description of the events set forth above is qualified in its entirety by reference to the exhibits which are attached hereto and incorporated herein by reference. Item 7. Financial Statements and Exhibits Listed below are the financial statements and pro forma financial information filed as part of this report on Form 8-K. a. Financial Statements of Spiros Development Corporation (a development stage enterprise): Independent Auditors' Report Balance Sheets as of December 31, 1995 and 1996 and September 30, 1997 (unaudited). Statements of Operations for the period December 5, 1995 (date of incorporation) to December 31, 1995, the year ended December 31, 1996, the period December 5, 1995 to December 31, 1996, the nine months ended September 30, 1996 and 1997 (unaudited), and the period December 5, 1995 to September 30, 1997 (unaudited). Statements of Cash Flows for the period December 5, 1995 (date of incorporation) to December 31, 1995, the year ended December 31, 1996, the period December 5, 1995 to December 31, 1996, the nine months ended September 30, 1996 and 1997 (unaudited), and the period December 5, 1995 to September 30, 1997 (unaudited). Statements of Shareholders' Equity for the period December 5, 1995 (date of incorporation) to December 31, 1995, the year ended December 31, 1996, and the nine months ended September 30, 1997 Notes to Financial Statements. 3 b. Pro Forma Financial Information: The following unaudited pro forma condensed consolidated balance sheet as of September 30, 1997 and the unaudited pro forma condensed consolidated statements of operations for the year ended December 31, 1996 and for the nine months ended September 30, 1997 give effect to the acquisition of Spiros Corp. as if it occurred as of September 30, 1997 for the condensed consolidated balance sheet and as of January 1, 1996 for the condensed consolidated statements of operations. These pro forma condensed consolidated financial statements have been prepared by management of Dura based on historical financial statements of Dura and Spiros Corp. and on the assumptions and adjustments as discussed in the accompanying notes to the pro forma condensed consolidated financial statements. The acquisition has been accounted for as a purchase and the pro forma financial information gives effect to the preliminary allocation of the purchase price to the acquired assets of Spiros Corp. The final purchase price allocation will be made at a future date, which may result in adjustments to the preliminary allocation. In the opinion of management, all pro forma adjustments necessary to state fairly such pro forma financial information have been made. The unaudited pro forma condensed consolidated financial statements are not necessarily indicative of what actual results of operations would have been for the periods had the acquisition occurred on the date indicated. In addition, such pro forma financial statements do not purport to indicate the results of future operations or financial position of the Company from the acquisition date forward. c. Exhibits: EXHIBIT NO. DESCRIPTION ----------- ----------- 1.1 (a) U.S. Purchase Agreement dated December 16, 1997 between Dura Pharmaceuticals, Inc. ("Dura"), Spiros Development Corporation II, Inc. ("Spiros Corp. II"), and the underwriters listed on Schedule A thereto. 1.2 (a) International Purchase Agreement dated December 16, 1997 between Dura, Spiros Corp. II, and the managers listed on Schedule A thereto. 2.1 (b) Purchase Agreement dated December 29, 1995 between Dura, Spiros Development Corporation ("Spiros Corp."), and the entities listed on the schedule of purchasers attached thereto. 2.2 Agreement and Plan of Merger dated December 18, 1995 between Dura, Spiros Corp. and SDC Acquisition Corp. 4.1(a) Amended and Restated Certificate of Incorporation of Spiros Corp. II, filed December 19, 1997 with the Deleware Secretary of State. 4.2(c) By-laws of Spiros Corp. II. 4.3 Purchase Option (included in Exhibit 4.1) 4.4 Warrant Agreement dated December 22, 1997 between Dura and ChaseMellon Shareholder Services L.L.C., as warrant agent, including form of Warrant. 4.5 Form of Warrant (included in Exhibit 4.4). 4.6 Specimen Unit Certificate. 4.7 Specimen Certificate of Spiros Corp. II Callable Common Stock. 4.8 Stock Certificate of SDC II Special Shares. 23.1 Consent of Deloitte & Touche LLP, Independent Auditors. 99.1 Technology License Agreement dated December 22, 1997 between Dura, Dura Delivery Systems, Inc., Spiros Corp. and Spiros Corp. II. 99.2 Development Agreement dated December 22, 1997 between Dura and Spiros Corp. II. 99.3 Albuterol and Product Option Agreement dated December 22, 1997, between Dura and Spiros Corp. II. 99.4 Manufacturing and Marketing Agreement dated December 22, 1997, between Dura and Spiros Corp. II. 99.5 Services Agreement dated December 22, 1997, between Dura and Spiros Corp. II. 99.6 Press Release dated October 10, 1997. 99.7 Press Release dated December 17, 1997. (a) Incorporated by reference to Schedule 13D filed by Dura on January 2, 1998. (b) Incorporated by reference to the Company's Current Report on Form 8-K dated December 29, 1995, as filed on January 9, 1996. (c) Incorporated by reference to the Company's Registration Statement on Forms S-1/S-3, filed October 10, 1997, as amended. 4 INDEPENDENT AUDITORS' REPORT To the Board of Directors and Shareholders of Spiros Development Corporation: We have audited the accompanying balance sheets of Spiros Development Corporation (a development stage enterprise) (the "Company") as of December 31, 1995 and 1996, the related statements of operations, shareholders' equity and cash flows for the period December 5, 1995 (date of incorporation) to December 31, 1995, the year ended December 31, 1996 and for the period from December 5, 1995 (date of incorporation) to December 31, 1996. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the financial statements based on our audits. We conducted our audits in accordance with generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, such financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 1995 and 1996, and the results of its operations and its cash flows for the period December 5, 1995 (date of incorporation) to December 31, 1995, the year ended December 31, 1996, and for the period from December 5, 1995 (date of incorporation) to December 31, 1996 in conformity with generally accepted accounting principles. The Company is in the development stage as of December 31, 1996. As discussed in Note 1 to the financial statements, the Company has yet to complete product development, obtain required regulatory approvals, or verify the market acceptance and demand for its products. As discussed in Note 7 to the financial statements, on December 19, 1997 Dura Pharmaceuticals, Inc. acquired all of the callable common stock of the Company. /s/ DELOITTE & TOUCHE LLP San Diego, California March 21, 1997 (December 19, 1997 as to Note 7) 5 SPIROS DEVELOPMENT CORPORATION (A DEVELOPMENT STAGE ENTERPRISE) BALANCE SHEETS DECEMBER 31, ----------------------------- 1995 1996 SEPTEMBER 30, 1997 ------------- -------------- ------------------ (UNAUDITED) ASSETS CURRENT ASSETS: Cash and cash equivalents....................................... $ 26,966,535 $ 10,628,486 $ 718,250 Short-term investments.......................................... 8,040,807 13,188,559 4,132,341 ------------- -------------- -------------- Total assets................................................ $ 35,007,342 $ 23,817,045 $ 4,850,591 ------------- -------------- -------------- ------------- -------------- -------------- LIABILITIES AND SHAREHOLDERS' EQUITY CURRENT LIABILITIES: Account payable to Dura Pharmaceuticals, Inc.................... $ 413,078 $ 2,234,293 $ 2,325,013 Accrued liabilities............................................. 400,000 8,153 8,153 ------------- -------------- -------------- Total liabilities........................................... 813,078 2,242,446 2,333,166 ------------- -------------- -------------- SHAREHOLDERS' EQUITY: Callable common stock, $.001 par value, authorized-- 1,073,334 shares; issued and outstanding--933,334 shares...... 933 933 933 Additonal paid-in capital....................................... 40,423,656 40,641,121 40,641,121 Callable common stock subscription receivable................... (6,000,000) Unrealized gain (loss) on short-term investments................ (1,866) 14,507 1,461 Deficit accumulated during the development stage................ (228,459) (19,081,962) (38,126,090) ------------- -------------- -------------- Total shareholders' equity.................................. 34,194,264 21,574,599 2,517,425 ------------- -------------- -------------- Total liabilities and shareholders' equity ................. $ 35,007,342 $ 23,817,045 $ 4,850,591 ------------- -------------- -------------- ------------- -------------- -------------- See accompanying notes to financial statements. 6 SPIROS DEVELOPMENT CORPORATION (A DEVELOPMENT STAGE ENTERPRISE) STATEMENTS OF OPERATIONS DECEMBER 5, DECEMBER 5, DECEMBER 5, 1995 1995 1995 (DATE OF (DATE OF (DATE OF INCORPORATION) INCORPORATION) NINE MONTHS ENDED INCORPORATION) TO YEAR ENDED TO SEPTEMBER 30, TO DECEMBER 31, DECEMBER 31, DECEMBER 31, ------------------------- SEPTEMBER 30, 1995 1996 1996 1996 1997 1997 ------------- ----------- ------------- ----------- ------------ ------------ (Unaudited) (Unaudited) (Unaudited) REVENUES: Contract....................... $ 200,000 $ 200,000 $ 200,000 Interest....................... $ 9,188 1,788,419 1,797,607 $ 1,444,098 $ 687,954 2,485,561 --------- ----------- ------------ ------------ ------------ ------------ Total revenues............. 9,188 1,988,419 1,997,607 1,444,098 687,954 2,685,561 --------- ----------- ------------ ------------ ------------ ------------ EXPENSES: Research and development.................. 237,647 16,173,971 16,411,618 11,535,823 14,862,718 31,274,336 General and administrative............... 4,666,292 4,666,292 2,510,807 4,869,364 9,535,656 Income taxes................... 1,659 1,659 1,659 --------- ------------ ------------ ------------ ------------ ------------ Total expenses............. 237,647 20,841,922 21,079,569 14,046,630 19,732,082 40,811,651 --------- ------------ ------------ ------------ ------------ ------------ NET LOSS......................... $(228,459) $(18,853,503) $(19,081,962) $(12,602,532) $(19,044,128) $(38,126,090) --------- ------------ ------------ ------------ ------------ ------------ --------- ------------ ------------ ------------ ------------ ------------ See accompanying notes to financial statements. 7 SPIROS DEVELOPMENT CORPORATION (A DEVELOPMENT STAGE ENTERPRISE) STATEMENTS OF CASH FLOWS DECEMBER 5, 1995 DECEMBER 5, 1995 DECEMBER 5, 1995 NINE MONTHS ENDED (DATE OF (DATE OF (DATE OF SEPTEMBER 30, INCORPORATION) INCORPORATION) TO YEAR ENDED INCORPORATION) TO ------------------------ TO DECEMBER 31, 1995 DECEMBER 31, 1996 DECEMBER 31, 1996 1996 1997 SEPTEMBER 30, 1997 ----------------- ----------------- ----------------- ----------- ----------- ------------------ (UNAUDITED) (UNAUDITED) (UNAUDITED) OPERATING ACTIVITIES: Net loss......................... $ (228,459) $ (18,853,503) $(19,081,962) $(12,602,532) $(19,044,128) $(38,126,090) Adjustments to reconcile net loss to net cash provided by (used for) operating activities: Compensation expense--stock options...................... 242,075 242,075 242,075 242,075 Changes in assets and liabilities: Account payable.............. 237,647 1,996,646 2,234,293 1,478,831 90,719 2,325,012 Accrued liabilities.......... 8,153 8,153 10,118 8,153 ------------- -------------- ------------ ---------- ------------ ---------- Net cash provided by (used for) operating activities............... 9,188 (16,606,629) (16,597,441) (10,871,508) (18,953,409) (35,550,850) ------------- -------------- ------------ ---------- ------------ ---------- INVESTING ACTIVITIES: Purchases of short-term investments.................... (8,042,673) (31,068,586) (39,111,259) (25,068,590) (3,177,612) (42,288,871) Sales and maturities of short-term investments......... 25,937,207 25,937,207 16,820,942 12,220,785 38,157,992 -------------- -------------- ----------- ---------- ----------- ---------- Net cash provided by (used for) investing activities..... (8,042,673) (5,131,379) (13,174,052) (8,247,648) 9,043,173 (4,130,879) -------------- -------------- ----------- ---------- ----------- ---------- FINANCING ACTIVITIES: Net proceeds from issuance of callable common stock.......... 21,424,589 5,975,390 27,399,979 5,975,390 27,399,979 Increase (decrease) in accrued issuance costs................. 575,431 (575,431) (575,431) Contributions from Dura Pharmaceuticals, Inc........... 13,000,000 13,000,000 13,000,000 -------------- -------------- ----------- ---------- ----------- ---------- Net cash provided by financing activities..... 35,000,020 5,399,959 40,399,979 5,399,959 -- 40,399,979 -------------- -------------- ----------- ---------- ----------- ---------- NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS........ 26,966,535 (16,338,049) 10,628,486 (13,719,197) (9,910,236) 718,250 CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD.............. -- 26,966,535 -- 26,966,535 10,628,486 -- -------------- -------------- ----------- ---------- ----------- ---------- CASH AND CASH EQUIVALENTS, END OF PERIOD........................... $26,966,535 $ 10,628,486 $10,628,486 $13,247,338 $ 718,250 $ 718,250 -------------- -------------- ----------- ---------- ----------- ---------- -------------- -------------- ----------- ---------- ----------- ---------- See accompanying notes to financial statements. 8 SPIROS DEVELOPMENT CORPORATION (A DEVELOPMENT STAGE ENTERPRISE) STATEMENTS OF SHAREHOLDERS' EQUITY CALLABLE DEFICIT CALLABLE COMMON UNREALIZED ACCUMULATED COMMON STOCK ADDITIONAL STOCK GAIN (LOSS) DURING THE ---------------------- PAID-IN SUBSCRIPTION ON DEVELOPMENT SHARES AMOUNT CAPITAL RECEIVABLE INVESTMENTS STAGE TOTAL --------- ----------- ---------- ------------ ----------- ------------ ----------- BALANCE, DECEMBER 5, 1995 (Date of Incorporation)............ Issuance of callable common stock, net................................ 933,334 $ 933 $27,423,656 $(6,000,000) $21,424,589 Contribution from Dura Pharmaceuticals, Inc............... 13,000,000 13,000,000 Unrealized loss on available-for-sale short-term investments........................ $ (1,866) (1,866) Net loss............................. $ (228,459) (228,459) --------- ----- ---------- ------------ ----------- ------------ ----------- BALANCE, DECEMBER 31, 1995........... 933,334 933 40,423,656 (6,000,000) (1,866) (228,459) 34,194,264 Collection of callable common stock subscription receivable............ 6,000,000 6,000,000 Additional issuance costs incurred during 1996........................ (24,610) (24,610) Unrealized gain on available-for-sale short-term investments............. 16,373 16,373 Compensation expense--stock options............................ 242,075 242,075 Net loss............................. (18,853,503) (18,853,503) --------- ----- ---------- ------------ ----------- ------------ ----------- BALANCE, DECEMBER 31, 1996........... 933,334 933 40,641,121 -- 14,507 (19,081,962) 21,574,599 UNAUDITED: Unrealized loss on available-for-sale short-term investments............. (13,046) (13,046) Net loss............................. (19,044,128) (19,044,128) --------- ----- ---------- ------------ ----------- ------------ ----------- BALANCE, SEPTEMBER 30, 1997.......... 933,334 $ 933 $40,641,121 $ -- $ 1,461 ($38,126,090) $ 2,517,425 --------- ----- ---------- ------------ ----------- ------------ ----------- --------- ----- ---------- ------------ ----------- ------------ ----------- See accompanying notes to financial statements. 9 SPIROS DEVELOPMENT CORPORATION (A DEVELOPMENT STAGE ENTERPRISE) NOTES TO FINANCIAL STATEMENTS 1. THE COMPANY AND ITS SIGNIFICANT ACCOUNTING POLICIES THE COMPANY--Spiros Development Corporation (the "Company") was incorporated on December 5, 1995 for the purpose of funding the development of Spiros, a proprietary drug delivery system licensed to the Company from Dura Pharmaceuticals, Inc. ("Dura"). Through a series of license, development, and management agreements with Dura, the Company is developing Spiros and the use of Spiros with three leading asthma drugs: albuterol, beclomethasone, and ipratropium (the "Compounds") (see Notes 3 and 4). Two members of the Company's board of directors are officers of Dura. BASIS OF ACCOUNTING--The Company is currently engaged in the development of Spiros products and has yet to complete product development, obtain required regulatory approvals, or verify the market acceptance and demand for its products. Accordingly, its activities have been accounted for as those of a "development stage enterprise" as set forth in Statement of Financial Accounting Standards ("SFAS") No. 7, "Accounting and Reporting by Development Stage Enterprises." Among the disclosures required by SFAS 7 are that the Company's financial statements be identified as those of a "development stage enterprise" and that the Statements of Operations, Shareholders' Equity, and Cash Flows disclose activities since the date of the Company's inception. At December 31, 1996, the Company had working capital of $21.6 million. The Company estimates that these funds will be sufficient to fund product development through 1997. However, completion of the Company's planned development of Spiros with the Compounds will require additional funding. CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS--The Company considers cash equivalents to include only highly liquid securities with an original maturity of three months or less. Short-term investments consist of government securities, corporate bonds, and commercial paper which management has classified as available-for-sale in the accompanying financial statements (Note 2). Such investments are carried at fair value, with unrealized gains and losses reported as a separate component of shareholders' equity. CONCENTRATION OF CREDIT RISK--The Company invests its excess cash in U.S. Government securities and debt instruments of financial institutions and corporations with strong credit ratings. The Company has established guidelines relative to diversification of its cash investments and their maturities, which are designed to maintain safety and liquidity. These guidelines are periodically reviewed and modified to take advantage of trends in yields and interest rates. The Company has not experienced any significant losses on its cash equivalents or short-term investments. USE OF ESTIMATES--The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect amounts reported in the financial statements and related notes. Changes in those estimates may affect amounts reported in future periods. ACCOUNTING FOR STOCK-BASED COMPENSATION--In 1996, the Company elected to adopt only the disclosure provisions of the Statement of Financial Accounting Standards No. 123, "Accounting for Stock-Based Compensation." Therefore, the adoption of this standard did not have an effect on the Company's financial position or results of operations (see Note 5). INTERIM FINANCIAL INFORMATION--The financial statements as of September 30, 1997, for the nine months ended September 30, 1996 and 1997, and for the period from December 5, 1995 (date of incorporation) to September 30, 1997 are unaudited. These financial statements reflect all adjustments, consisting only of normal recurring adjustments which, in the opinion of management, are necessary to fairly present the Company's financial position as of September 30, 1997, the results of its operations for the nine months ended September 30, 1996 and 1997, and the results of operations from December 5, 1995 (date of incorporation) to September 30, 1997. The results of operations for the nine months ended September 30, 1997 are not necessarily indicative of the results to be expected for the year ending December 31, 1997. 10 SPIROS DEVELOPMENT CORPORATION (A DEVELOPMENT STAGE ENTERPRISE) NOTES TO FINANCIAL STATEMENTS (CONTINUED) 2. SHORT-TERM INVESTMENTS The following is a summary of short-term investments: UNREALIZED ESTIMATED GAINS FAIR COST (LOSSES) VALUE ------------- ----------- ------------- DECEMBER 31, 1995: Corporate obligations.............................. $ 8,042,673 $ (1,866) $ 8,040,807 DECEMBER 31, 1996: Corporate obligations.............................. $ 13,174,052 $ 14,507 $ 13,188,559 At December 31, 1996, all short-term investments mature within one year. 3. SHAREHOLDERS' EQUITY On December 29, 1995, the Company completed a private placement of 933,334 units. Each unit sold for $30 and consisted of 1 share of the Company's callable common stock and a Series S warrant to purchase 2.4 shares of Dura's common stock. Net proceeds to the Company totaled $27.4 million. The Company also received a $13 million contribution from Dura. In exchange for this contribution and the Series S warrants, Dura has the right ("Spiros Purchase Option") through December 31, 1999, to purchase all of the outstanding shares of the Company's callable common stock at predetermined prices. The purchase price is $46.88 per share through December 31, 1997 and increases on a quarterly basis thereafter to a maximum of $76.17 per share on December 31, 1999. Based on shares outstanding and shares reserved for options outstanding at December 31, 1996, the aggregate purchase price would be $49.8 million through December 31, 1997 to a maximum of $80.8 million on December 31, 1999. The purchase price may be paid, at Dura's discretion, in cash, shares of Dura common stock, or a combination thereof. Dura has no legal obligation to exercise the Spiros Purchase Option. In addition, Dura has the option through specific dates to acquire the Company's exclusive rights for the use of albuterol with the cassette version of Spiros ("Albuterol Purchase Option") for a minimum purchase price of $15 million. If Dura exercises the Albuterol Purchase Option and does not exercise its Spiros Purchase Option, Dura will pay a royalty to the Company on net sales of such product. (See Note 7.) 4. LICENSE, ROYALTY AND DEVELOPMENT AGREEMENTS DURA PHARMACEUTICALS, INC.--In connection with the December 29, 1995 private placement, the Company also entered into certain other agreements with Dura which are summarized as follows: TECHNOLOGY LICENSE AGREEMENT--Under this agreement, Dura granted to the Company, subject to existing agreements with Mitsubishi Chemical Corporation, a royalty-bearing, perpetual, exclusive license to use Spiros in connection with the Compounds, certain off-patent proteins and compounds, and certain non-exclusive rights to other compounds. This agreement expires upon exercise by Dura of the Spiros Purchase Option and prior to such expiration, Dura may exercise the Albuterol Purchase Option under terms set forth in the agreement. INTERIM MANUFACTURING AND MARKETING AGREEMENT--Under this agreement, the Company granted to Dura an exclusive license to manufacture and market Spiros Corp. products in the U.S. in exchange for a royalty of 10.0% on net product sales, as defined. Such agreement expires upon exercise or termination of the Spiros Purchase Option. 11 SPIROS DEVELOPMENT CORPORATION (A DEVELOPMENT STAGE ENTERPRISE) NOTES TO FINANCIAL STATEMENTS (CONTINUED) 4. LICENSE, ROYALTY AND DEVELOPMENT AGREEMENTS (CONTINUED) DEVELOPMENT AND MANAGEMENT AGREEMENT--Under this agreement, the Company has engaged Dura to develop the Company's products and provide general management services to the Company. The Company reimburses Dura for (1) all direct development costs plus a fee equal to 25% of all such costs and (2) indirect development costs plus a fee equal to 15% of such costs. The Agreement requires the Company to make payments to Dura for costs made on behalf of the Company within 15 days after the month end in which the costs were incurred. Fees paid to Dura for development of products and general management services were $237,647, $20,598,188 and $20,835,835 for the period December 5, 1995 (date of incorporation) to December 31, 1995, the year ended December 31, 1996, and the period from December 5, 1995 (date of incorporation) through December 31, 1996, respectively. MITSUBISHI CHEMICAL CORPORATION ("MCC")--The Company has entered into a license and supply agreement with MCC whereby MCC was granted a license to use and sell Spiros with certain compounds in defined territories located in Asia. Under the agreement, the Company is developing formulations of the compounds for use with Spiros, as well as a process to manufacture such products. The Company is entitled to development payments upon achieving specified milestones. Contract revenue under the agreement is recognized as performance requirements are met. Contract revenue of $200,000 was recorded during the year ended December 31, 1996. 5. STOCK OPTION PLAN Under the 1996 Stock Option Plan (the "Plan"), the Company may grant options to purchase up to 140,000 shares of the Company's callable common stock to employees, directors, and consultants who provide services to the Company at prices not less than 85% of the fair value of a share of callable common stock. These options generally expire ten years from the date of the grant. Unexercised options generally terminate upon the execution of a corporate transaction, as defined in the plan agreement. Shares issued upon the exercise of options are subject to certain restrictions regarding their disposition. No options were granted during the period ended December 31, 1995. During the year ended December 31, 1996, options to purchase 128,000 shares were granted at a weighted average exercise price of $31.52, all of which remained outstanding at December 31, 1996. Each of the options was fully exercisable upon the date of the grant. The options granted have exercise prices ranging from $30.00 to $33.87 and had a weighted average remaining contractual life of 9.25 years at December 31, 1996. In accordance with Statement of Financial Accounting Standards No. 123, "Accounting for Stock-Based Compensation" ("SFAS 123"), the Company applies Accounting Principles Board Opinion No. 25 and related interpretations in accounting for stock options granted to employees and, accordingly, no compensation cost has been recognized for stock options granted to employees. In accordance with SFAS 123, options granted to non-employees are accounted for based on their estimated fair value at grant date. During the year ended December 31, 1996, 73,000 options were granted to non-employees for which the Company recorded compensation expense of $242,075. If the Company had elected to recognize compensation cost for options granted to employees based on the fair value of the options granted at the grant date, net loss for the year ended December 31, 1996 would have been increased by $193,935. The estimated weighted average fair value at grant date for options granted during 1996 was $3.41. The fair value of options at the date of grant was estimated using the Black-Scholes option-pricing model with the following assumptions: 12 SPIROS DEVELOPMENT CORPORATION (A DEVELOPMENT STAGE ENTERPRISE) NOTES TO FINANCIAL STATEMENTS (CONTINUED) Expected dividend yield............................................ None Risk-free interest rate............................................ 5.8% Expected life of options........................................... 2 years 6. INCOME TAXES Deferred taxes represent the net tax effects of temporary differences between the carrying value of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Company's net deferred tax assets at December 31, 1996 are as follows: Net operating loss carryforwards................................ $6,281,973 Research costs capitalized for tax purposes..................... 977,897 Research credit carryforwards................................... 603,720 ---------- Total deferred tax assets....................................... 7,863,590 Valuation allowance for deferred tax assets..................... (7,863,590) ---------- Net deferred tax assets..................................... $ 0 ---------- The Company has provided a valuation allowance against deferred tax assets due to uncertainties as to their ultimate realization. At December 31, 1996, the Company had federal net operating loss carryforwards totaling approximately $18.2 million which begin to expire in 2010. 7. EXERCISE OF SPIROS PURCHASE OPTION BY DURA PHARMACEUTICALS, INC. (UNAUDITED) On December 19, 1997, Dura acquired all of the Company's callable common stock. The purchase price of $45.7 million was paid through the issuance of 896,606 shares of Dura common stock valued at $43.8 million and $1.9 million in cash. 13 DURA PHARMACEUTICALS, INC. PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET (UNAUDITED) SEPTEMBER 30, 1997 IN THOUSANDS - -------------------------------------------------------------------------------- Spiros Purchase Pro Forma ASSETS Dura Corp. Adjustments Consolidated -------------- ------------- ------------ ------------- Current Assets: Cash, cash equivalents, and short-term investments $ 454,710 $ 4,851 $ (1,952) (2b) $ 457,609 Other current asssets 43,707 (2,325) (2a) 41,382 -------------- ------------- ------------ ------------- Total current assets 498,417 4,851 (4,277) 498,991 Property 44,148 44,148 License Agreements and Product Rights 248,743 248,743 Other Non-Current Assets 29,797 29,797 -------------- ------------- ------------ ------------- Total $ 821,105 $ 4,851 $ (4,277) $ 821,679 -------------- ------------- ------------ ------------- -------------- ------------- ------------ ------------- LIABILITIES AND SHAREHOLDERS' EQUITY Current Liabilities: Accounts payable and accrued liabilities $ 38,193 $ 2,333 $ (2,325) (2a) $ 38,201 Current portion of long-term obligations 2,948 2,948 -------------- ------------- ------------ ------------- Total current liabilities 41,141 2,333 (2,325) 41,149 Convertible Subordinated Notes 287,500 287,500 Other Non-Current Liabilities 10,167 10,167 -------------- ------------- ------------ ------------- Total liabilities 338,808 2,333 (2,325) 338,816 -------------- ------------- ------------ ------------- Shareholders' Equity: Common stock 44 1 - (2b) 45 Additional paid-in capital 533,003 40,641 3,113 (2b) 576,757 Accumulated deficit (49,597) (38,126) (6,411) (2b,c) (94,134) Unrealized gain on investments 195 2 (2) (2b) 195 Warrant subscriptions receivable (1,348) 1,348 (2c) -------------- ------------- ------------ ------------- Total shareholders' equity 482,297 2,518 (1,952) 482,863 -------------- ------------- ------------ ------------- Total $ 821,105 $ 4,851 $ (4,277) $ 821,679 -------------- ------------- ------------ ------------- -------------- ------------- ------------ ------------- See accompanying notes to pro forma condensed consolidated financial statements. 14 DURA PHARMACEUTICALS, INC. PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (UNAUDITED) FOR THE YEAR ENDED DECEMBER 31, 1996 IN THOUSANDS, EXCEPT PER SHARE DATA - -------------------------------------------------------------------------------- Spiros Purchase Pro Forma Dura Corp. Adjustments Consolidated --------- --------- ----------- ------------ REVENUES: Sales $ 79,563 $ 79,563 Contract 24,556 $ 200 $ (19,138) (3a) 5,618 --------- --------- ---------- ---------- Total revenues 104,119 200 (19,138) 85,181 --------- --------- ---------- ---------- OPERATING COSTS AND EXPENSES: Cost of sales 21,301 21,301 Clinical, development and regulatory 18,540 16,174 (16,174) (3b) 18,540 Selling, general and administrative 42,631 4,666 (4,666) (3b) 42,631 --------- --------- ---------- ---------- Total operating costs and expenses 82,472 20,840 (20,840) 82,472 --------- --------- ---------- ---------- OPERATING INCOME (LOSS) 21,647 (20,640) 1,702 2,709 --------- --------- ---------- ---------- OTHER: Interest income 6,897 1,788 8,685 Interest expense (677) (677) --------- --------- ---------- ---------- Total other 6,220 1,788 8,008 --------- --------- ---------- ---------- INCOME (LOSS) BEFORE INCOME TAXES 27,867 (18,852) 1,702 10,717 PROVISION FOR INCOME TAXES 3,539 2 (2,625) (3c) 916 --------- --------- ---------- ---------- NET INCOME (LOSS) $ 24,328 $ (18,854) $ 4,327 $ 9,801 --------- --------- ---------- ---------- --------- --------- ---------- ---------- NET INCOME PER SHARE $ 0.60 $ 0.24 --------- ---------- --------- ---------- WEIGHTED AVERAGE NUMBER OF COMMON AND COMMON EQUIVALENT SHARES 40,479 41,376 --------- ---------- --------- ---------- See accompanying notes to pro forma condensed consolidated financial statements. 15 DURA PHARMACEUTICALS, INC. PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (UNAUDITED) FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1997 IN THOUSANDS, EXCEPT PER SHARE DATA - -------------------------------------------------------------------------------- Spiros Purchase Pro Forma Dura Corp. Adjustments As Adjusted ------------ ------------ ------------- ------------ REVENUES: Sales $ 105,437 $ 105,437 Contract 22,430 $ (18,331) (3a) 4,099 ------------ ------------ ------------ ------------ Total revenues 127,867 - (18,331) 109,536 ------------ ------------ ------------ ------------ OPERATING COSTS AND EXPENSES: Cost of sales 23,373 23,373 Clinical, development and regulatory 18,160 $ 14,863 (14,863) (3b) 18,160 Selling, general and administrative 49,485 4,869 (4,869) (3b) 49,485 ------------ ------------ ------------ ------------ Total operating costs and expenses 91,018 19,732 (19,732) 91,018 ------------ ------------ ------------ ------------ OPERATING INCOME (LOSS) 36,849 (19,732) 1,401 18,518 ------------ ------------ ------------ ------------ OTHER: Interest income 11,434 688 12,122 Interest expense (2,531) (2,531) ------------ ------------ ------------ ------------ Total other 8,903 688 - 9,591 ------------ ------------ ------------ ------------ INCOME (LOSS) BEFORE INCOME TAXES 45,752 (19,044) 1,401 28,109 PROVISION FOR INCOME TAXES 16,357 (7,057) (3c) 9,300 ------------ ------------ ------------ ------------ NET INCOME (LOSS) $ 29,395 $ (19,044) $ 8,458 $ 18,809 ------------ ------------ ------------ ------------ ------------ ------------ ------------ ------------ NET INCOME PER SHARE $ 0.62 $ 0.39 ------------ ------------ ------------ ------------ WEIGHTED AVERAGE NUMBER OF COMMON AND COMMON EQUIVALENT SHARES 47,392 48,289 ------------ ------------ ------------ ------------ See accompanying notes to pro forma condensed consolidated financial statements. 16 Dura Pharmaceuticals, Inc. Notes to Pro Forma Condensed Consolidated Financial Statements (Unaudited) 1. On December 19, 1997, Dura Pharmaceuticals, Inc. (the "Company" or "Dura") acquired all of the outstanding shares of callable common stock of Spiros Development Corporation ("Spiros Corp") for an aggregate purchase price of $45,707,000. The purchase price was paid through the issuance of 896,606 shares of Dura common stock and a cash payment of $1,952,000. The acquisition has been accounted for as a purchase business combination. Dura has initially assigned the estimated aggregate excess of cost over the fair value of net assets acquired to in-process technology. The charge to earnings for in-process technology has not been reflected in the pro forma condensed consolidated statements of operations as it is non-recurring, but is reflected in the pro forma condensed consolidated balance sheet. 2. The pro forma condensed consolidated balance sheet includes the adjustments necessary as if the purchase of Spiros Corp. had occurred on September 30, 1997. The adjustments are summarized as follows (dollars in thousands): (a) To eliminate intercompany accounts payable and receivable. Accounts payable and accrued liabilities $ 2,325 Other current assets $ 2,325 (b) To record the issuance of 896,606 shares of the Company's common stock valued at $43,755 and a cash payment of $1,952 for the acquisition of Spiros Corp., the elimination of Spiros Corp.'s equity accounts, and a charge to earnings resulting from the allocation of acquisition cost to in-process technology. Accumulated deficit $ 43,189 Additional paid-in capital 40,641 Common stock 1 Unrealized gain on investments 2 17 Cash $ 1,952 Additional paid-in capital 43,754 Common stock 1 Accumulated deficit 38,126 (c) To eliminate warrant subscriptions receivable. Accumulated deficit $ 1,348 -------- Warrant subscriptions receivable $ 1,348 3. The pro forma condensed consolidated statements of operations include the adjustments necessary to reflect the purchase of Spiros Corp. as if it had occurred on January 1, 1996. The pro forma adjustments are summarized as follows (dollars in thousands): For the year ended December 31, 1996: (a) To eliminate contract revenue recognized by the Company related to activities conducted on behalf of Spiros Corp. Because a pro rata portion of the amounts paid by Spiros Corp. to the Company is allocated to warrant subscriptions receivable, the contract revenue recognized by the Company does not equal the total research and development and general and administrative expenses recorded by Spiros Corp. $ 19,138 (b) To eliminate research and development and general and administrative expenses recognized by Spiros Corp. related to activities conducted by the Company. Clinical, development and regulatory $ 16,174 General and administrative 4,666 (c) To record the reduction in the provision for income taxes related to the decrease in income before income taxes resulting from the combination of the Company and Spiros Corp. (see further discussion below). $ 2,625 For the nine months ended September 30, 1997: (a) To eliminate contract revenue recognized by the Company related to activities conducted on behalf of Spiros Corp. Because a pro rata portion of the amounts paid by Spiros Corp. to the Company is allocated to warrant subscriptions receivable, the contract revenue recognized by the Company does not equal the total research and development and general and administrative expenses recorded by Spiros Corp. $ 18,331 (b) To eliminate research and development and general and administrative expenses recognized by Spiros Corp. related to activities conducted by the Company. Clinical, development and regulatory $ 14,863 General and administrative 4,869 (c) To record the reduction in the provision for income taxes related to the decrease in income before income taxes resulting from the combination of the Company and Spiros Corp. (see further discussion below). $ 7,057 No income tax benefit was recognized by Spiros Corp. in its historical financial statements for the increase in its deferred tax assets due to the uncertainty regarding its ability to realize those assets. Accordingly, the pro forma adjustments for the provision for income taxes for the year ended December 31, 1996 and the nine months ended September 30, 1997 were determined by combining the results of operations of Spiros Corp. with those of the Company for the respective periods and calculating the provision for income taxes as if the Company had acquired Spiros Corp. on January 1, 1996. 18 The weighted average number of shares used to calculate pro forma net income per share for the year ended December 31, 1996 and the nine months ended September 30, 1997 is based on the historical weighted average shares outstanding for the Company for the respective periods adjusted to reflect as of January 1, 1996 the assumed issuance of 896,606 shares of the Company's common stock as discussed in Note 1. 19 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report on Form 8-K to be signed on its behalf by the undersigned hereunto duly authorized. DURA PHARMACEUTICALS, INC. Date: January 5, 1998 /s/ Mitchell R. Woodbury -------------------------------------- Sr. Vice President and General Counsel 20 DURA PHARMACEUTICALS, INC. FORM 8-K EXHIBIT INDEX EXHIBIT NO. DESCRIPTION - ----------- ----------- 1.1 (a) U.S. Purchase Agreement dated December 16, 1997 between Dura Pharmaceuticals, Inc. ("Dura"), Spiros Development Corporation II, Inc. ("Spiros Corp. II"), and the underwriters listed on Schedule A thereto. 1.2 (a) International Purchase Agreement dated December 16, 1997 between Dura, Spiros Corp. II, and the managers listed on Schedule A thereto. 2.1 (b) Purchase Agreement dated December 29, 1995 between Dura, Spiros Development Corporation ("Spiros Corp."), and the entities listed on the schedule of purchasers attached thereto. 2.2 Agreement and Plan of Merger dated December 18, 1995 between Dura, Spiros Corp. and SDC Acquisition Corp. 4.1(a) Amended and Restated Certificate of Incorporation of Spiros Corp. II, filed December 19, 1997 with the Deleware Secretary of State. 4.2(c) By-laws of Spiros Corp. II. 4.3 Purchase Option (included in Exhibit 4.1) 4.4 Warrant Agreement dated December 22, 1997 between Dura and ChaseMellon Shareholder Services L.L.C., as warrant agent, including form of Warrant. 4.5 Form of Warrant (included in Exhibit 4.4). 4.6 Specimen Unit Certificate. 4.7 Specimen Certificate of Spiros Corp. II Callable Common Stock. 4.8 Stock Certificate of SDC II Special Shares. 23.1 Consent of Deloitte & Touche LLP, Independent Auditors. 99.1 Technology License Agreement dated December 22, 1997 between Dura, Dura Delivery Systems, Inc., Spiros Corp. and Spiros Corp. II 99.2 Development Agreement dated December 22, 1997 between Dura and Spiros Corp. II. 99.3 Albuterol and Product Option Agreement dated December 22, 1997, between Dura and Spiros Corp. II. 99.4 Manufacturing and Marketing Agreement dated December 22, 1997, between Dura and Spiros Corp. II. 99.5 Services Agreement dated December 22, 1997, between Dura and Spiros Corp. II. 99.6 Press Release dated October 10, 1997. 99.7 Press Release dated December 17, 1997. (a) Incorporated by reference to Schedule 13D filed by Dura on January 2, 1998. (b) Incorporated by reference to the Company's Current Report on Form 8-K dated December 29, 1995, as filed on January 9, 1996. (c) Incorporated by reference to the Company's Registration Statement on Forms S-1/S-3, filed October 10, 1997, as amended.