SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 6-K REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 23, 2003 MERANT plc (Translation of Registrant's Name Into English) The Lawn, Old Bath Road, Newbury, England RG14 1QN (Address of Principal Executive Offices) (Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.) Form 20-F X Form 40-F _____ ------- (Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3- 2(b) under the Securities Exchange Act of 1934.) Yes X No _____ ------- (If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2 (b): 82-795.) LONDON STOCK EXCHANGE ANNOUNCEMENT Schedule 10 - Notification of Major Interests in Shares 1 Name of company: MERANT plc 2 Name of shareholder having a major interest: Fidelity International Limited 3 Please state whether notification indicates that it is in respect of holding of the shareholder named in 2 above or in respect of a non-beneficial interest or in the case of an individual holder if it is a holding of that person's spouse or children under the age of 18: Same as above 4 Name of registered holder(s) and, if more than one holder, the number of shares held by each of them: 8,840,863 	Chase Nominees Limited for Fidelity Investment Services Limited (FISL) 827,323	Chase Nominees Limited for Fidelity International Limited (FIL) 61,100	State Street Bank & Trust for FIL 5 Number of shares/amount of stock acquired: 6 Percentage of issued class: 7 Number of shares/amount of stock disposed: 1,351,541 8 Percentage of issued class: 1.3% 9 Class of security: Ordinary 2p 10 Date of transaction: 8th April 2003 11 Date company informed: 14th April 2003 12 Total holding following this notification: 9,729,286 13 Total percentage holding of issued class following this notification: 9.37% 14 Contact name for queries: Tejaswini Salvi 15 Contact telephone number: 01727 813230 16 Name of company official responsible for making notification: Tejaswini Salvi 17 Date of notification: 23rd April 2003 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, thereunto duly authorized. MERANT plc (Registrant) Date: April 23, 2003 By: /s/ Stephen Going 				-------------------------------------- 		Stephen Going 		 		Vice President & General Counsel