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 Date of Report (Date of earliest event reported) February 12, 1998 ----------------- MICROSEMI CORPORATION --------------------- (Exact name of Registrant as specified in its charter) Delaware 0-8866 95-2110371 - ---------------------------- ------------ ------------------ (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) File Number) Identification No.) 2830 South Fairview Street, Santa Ana, California 92704 - ------------------------------------------------- ----- (Address of principal executive offices) (Zip code) Registrant's telephone number, including area code (714) 979-8220 -------------- Not Applicable -------------- (Former name or former address, if changed, since last report) Item 5. Other Events Conversion of Debentures - ------------------------ On February 18, 1998, Microsemi Corporation, a Delaware corporation (the "Registrant"), issued a news release which announced that the holders of the Registrant's 5 7/8% Convertible Subordinated Debentures due 2012 ("Debentures") had converted Debentures into the Registrant's Common Stock, par value $.20 per share. The Registrant's news release concerning the Debenture conversions is attached as Exhibit 99.1 hereto and incorporated herein by this reference. The final tally as of February 20, 1998 shows that a total of $33,236,000 in principal amount of Debentures were converted at the Debenture conversion price of $13.55 of principal amount per share. This resulted in the issuance of approximately 2,452,841 shares of Common Stock. The shares issued upon conversion have been registered by the Company under the Securities Act of 1933 on Form S-2, Registration No. 33-11967, which was declared effective on February 25, 1987 and issued in reliance upon such registration or Section 3(a)(9) under the Securities Act of 1933, as amended. The Common Stock of the Registrant issued upon conversion of Debentures are eligible for public trading. The Common Stock is traded on the Nasdaq National Market under the symbol "MSCC". A total of $23,000 in principal amount of Debentures was surrendered for redemption or was not surrendered for conversion on a timely basis. This amount represents less than seven ten-thousandths (7/10,000ths) of the principal amount of Debentures that was outstanding. Item 7. Financial Statements, Pro Forma Financial Information and Exhibits (a) Financial Statements of Business Acquired. Not applicable. (b) Unaudited Pro Forma Financial Information. Not applicable. (c) Exhibits. 99.1 News Release dated February 18, 1998 relating to the conversion by the holders of Debentures and the Registrant's issuance of Common Stock SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. MICROSEMI CORPORATION (Registrant) Date: February 20, 1998 By: /s/ DAVID R. SONKSEN ----------------------------------- David R. Sonksen, Vice President-Finance, Treasurer, Chief Financial Officer and Secretary MICROSEMI CORPORATION INDEX TO EXHIBITS EXHIBIT NO. DESCRIPTION ---------- ----------- 99.1 News Release dated February 18, 1998 relating to the conversion by the holders of Debentures and the Registrant's issuance of Common Stock