FORM 6-K


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                        Report of Foreign Private Issuer
                      Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1934


                                  25th January, 2005


                         Commission File Number 000-02404





                           BALTIMORE TECHNOLOGIES PLC
                               (Registrant's name)





           Baltimore Technologies plc, Innovation House, Mark Road
                 Hemel Hempstead, Herts, HP2 7DN, United Kingdom
                    (Address of principal executive offices)



Indicate by check mark whether the registrant files or will file annual reports
under cover Form 20-F or 40-F.


                  Form 20-F _____X_____    Form 40-F _________


Indicate by check mark if the registrant is submitting the Form 6-K in paper
as permitted by Regulation S-T Rule 101(b)(1): _____

Indicate by check mark if the registrant is submitting the Form 6-K in paper
as permitted by Regulation S-T Rule 101(b)(7): _____


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(b) under the Securities Act of 1934.


                         Yes _________    No _____X_____


If "Yes" is marked, indicate below the file number assigned to the registrant
in connection with rule 12g3-2(b).



                                  EXHIBIT INDEX


Press Release regarding Holding(s) in Company dated 25th January, 2005




                                                            25 January 2005

                           BALTIMORE TECHNOLOGIES PLC
                  (Ticker: Reuters BLM.L or Bloomberg: BLM LN)

                         ("Baltimore" or "the Company")

                              Holdings in Company

The Company has been notified that The Goldman Sachs Group, Inc. holds 13,644
ordinary shares of 125 pence each in the Company, representing 3.17 per cent. of
the issued share capital of the Company. 53 of these shares are registered in
the name of Goldman Sachs Securities (Nominees) Limited and, 13,591 of these
shares are registered in the name of CREPTEMP.



                                   ---ENDS---

Enquiries:

Bishopsgate Communications Ltd                           Tel: 020 7430 1600
Maxine Barnes
Dominic Barretto
Email: maxine@bishopsgatecommunications.com

Shore Capital and Corporate Ltd.                         Tel: 020 7408 4090
Guy Peters
Simon Edwards


Notes to editors:

Shore Capital and Corporate Limited, which is authorised and regulated by the
Financial Services Authority in respect of regulated activities, is acting
exclusively for Baltimore Technologies plc and no one else in connection with
the potential offer from earthport plc (the "Potential Offer") and will not
regard any other person as its client or be responsible to anyone other than
Baltimore Technologies plc for providing the protections afforded to clients of
Shore Capital and Corporate Limited nor for giving advice to any such person in
relation to the Potential Offer.



                                   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.


                Baltimore Technologies plc





                By:         /s/Tim Lovell
                Name:       Tim Lovell
                Title:      Finance Director




Date: 25th January, 2005