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                                    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

                          For the month of March, 2007

                              CONVERIUM HOLDING AG
                 -----------------------------------------------
                 (Translation of registrant's name into English)

                                 Dammstrasse 19
                                   CH-6301 Zug
                                   Switzerland
                    ----------------------------------------
                    (Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports
under cover 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         No    X
                                   -------    -------

If "Yes" is marked, indicate the file number assigned to the registrant in
connection with Rule 12g3-2(b): 82- Not Applicable


                                       1



News release
Converium Holding Ltd, Zug

Zug,  Switzerland  - February  28,  2007 -  Converium  reports  2006 income from
continuing  operations  of USD 215  million,  net income of USD 57  million  and
presents its value-focused medium-term strategy.

Converium today presents its road map to generate a sustainable return on equity
of 14% by 2009.  The key  elements of  Converium's  medium-term  value  creation
strategy are: growing business volume to USD 3 billion by 2009,  whilst reducing
the combined ratio to 96%;  boosting capital  efficiency by seeking  shareholder
approval  to return USD 300  million to  shareholders  through the use of hybrid
capital;  increasing returns on investment and further improving cost-efficiency
of operations.

Converium's   value  creation  strategy  is  supported  by  a  strong  financial
performance in 2006, with the following highlights:

o    USD 215.0 million income from continuing operations
o    USD  57.1  million  net  income,   including   the  negative   impact  from
     discontinued operations, net of tax of USD 157.9 million
o    USD 1,980.9 million gross premiums written
o    96.3% non-life combined ratio
o    USD 1,846.0 million shareholders' equity
o    CHF 0.20 per share proposed dividend for 2006

Inga Beale, CEO, commented: "I am very pleased with our strong financial results
for 2006. Based on a robust franchise and significant  operational  improvements
we have accomplished a remarkable turnaround.  I am convinced that the strategic
path charted  today sets both  ambitious  and  obtainable  goals.  It rests on a
capital base of  approximately  USD 2 billion,  sound  operating  profitability,
strong  support from clients and brokers as well as talented  employees  who are
committed to capturing the growth  opportunities  following a ratings upgrade. I
strongly believe that we can achieve our growth and profitability  targets based
on the comprehensive management of all relevant value drivers."

Converium's road map for sustainable value creation

Converium is committed  to  achieving a  sustainable  return on equity of 14% by
2009.  The  underlying  strategy will be built on  fundamental  improvements  in
underwriting, capital management, asset management and operations.

Growing the business while  improving  profitability
Converium aims to grow its gross premiums  written by more than one third to USD
3 billion by 2009 based on total gross premiums written for 2007, expected to be
in the range of USD 2.2  billion.  Converium  expects to win back a  significant
share of business  with  existing  customers  following a ratings  upgrade.  The
Company expects to be able to regain market share in all lines of business,  but
primarily  in  specialty  areas such as Credit & Surety and  Agribusiness  where
Converium used to be among the global leaders. In addition,  the Company expects
to capture  opportunities from fast-growing emerging markets where Converium can
build on strong client relationships and a regional infrastructure.

Converium  is further  committed to improving  underwriting  profitability  to a
combined ratio of around 96% in 2009.  This objective is expected to be achieved
based on the following  four  elements:  First,  the fronting fee on Converium's
Global  Aerospace  Underwriters  Ltd (GAUM)  business will decrease  following a
ratings upgrade;  second,  the long-tail business with the Medical Defence Union
(MDU) which is  economically  profitable  even at a combined  ratio of more than
100% will lose  weight in  Converium's  overall  portfolio;  third,  following a
ratings  upgrade,  the Company is committed to rebalancing  its book of business
towards  non-proportional  business  and  attractive  specialty  lines  at lower
expected combined ratios;  and, fourth,  with growing business volumes Converium
expects a reduced administrative expense ratio.



                                       2



Boosting capital  efficiency by returning capital to shareholders and using more
hybrid capital
Following a ratings upgrade, Converium will be in a position to more efficiently
leverage its balance sheet.  Converium currently has significantly lower balance
sheet  leverage  than its peers.  The  Company  will seek to take  advantage  of
beneficial  financing  conditions,  and, shortly after a ratings upgrade,  issue
hybrid  debt to USD  500  million.  The  funds  raised  will  refinance  current
outstanding  hybrid  debt,  and  allow for USD 300  million  to be  returned  to
shareholders  following shareholder  approval.  Greater efficiency in the use of
capital is expected to bring down the weighted  average cost of capital to under
9% by that date.

Converium  believes  that  its  overall  capital  situation  will  allow  for  a
sustainable dividend pay-out ratio of 25%-35%.

Increasing sustainable investment yield
Based on Converium's  state-of-the-art  expertise in  Asset-Liability-Management
and its new strategic  partnership with Deutsche Asset  Management,  the Company
expects to achieve significant sustainable improvements in its investment yield.
One of the specific  measures  envisaged is a more  sophisticated  management of
Converium's fixed-income securities portfolio.

Strong financial performance in 2006

Income from continuing operations up six-fold
For 2006,  Converium  reported  income from  continuing  operations of USD 215.0
million  compared with USD 34.1 million for the same period in 2005,  equivalent
to 13.0% return on equity.  Converium's 2006 figures  demonstrate the quality of
the Company's underlying book of business, the absence of any major catastrophic
events,  as  well as a  satisfactory  net  investment  income.  The  significant
increase in profit is driven by an  improvement  in the non-life  combined ratio
from 107.0% in 2005 to 96.3% in 2006.  In  addition,  Converium's  results  were
positively  impacted by the net favorable  impact of prior accident years on the
technical  result of USD 52.1 million.  Net income for 2006 amounted to USD 57.1
million,  reflecting  an  overall  negative  impact  on net  income of USD 157.9
million from the sale of Converium's North American operations.

Growth in business volume reflective of stable franchise
For the year ended December 31, 2006, gross premiums  written  increased by 1.3%
to USD  1,981  million.  Net  premiums  written  increased  by 3.9% to USD 1,852
million,  showing a resilient  franchise  and visible  progress made towards the
Company's turnaround in 2006. However, net premiums earned decreased by 19.7% to
USD 1,812  million due to lower earned  premiums from prior  underwriting  years
reflecting  the  impact of the  ratings  downgrade  in 2004.  For the year ended
December  31,  2006,  net  premiums  written  in  Standard  Property  & Casualty
Reinsurance  increased by USD 77.9 million, or 10.5%,  Specialty Lines decreased
by USD 8.3  million,  or 1.1%  and net  premiums  written  in the  Life & Health
Reinsurance segment decreased by USD 0.7 million, or 0.2%.

Satisfactory  net  investment  income result and  investment  yield  (continuing
operations)
Converium's net investment income from continuing  operations  increased by 1.0%
to USD 260.4  million for the year ended  December 31, 2006 as compared with USD
257.8 for the same  period in 2005.  The  average  total  invested  assets  from
continuing  operations was USD 6,147.4  million,  which was a slight increase on
the 2005 amount of USD 6,139.1 million.  Our average net investment income yield
(pre-tax) from continuing  operations for the year was 4.2%, comparable with the
prior year, reflecting similar market conditions and asset allocation.

Fourth quarter performance impacted by sale of US operations

The net loss in the fourth quarter of 2006 was USD 121.3 million, reflecting the
one-off  negative  impact from the loss on sale of  Converium's  North  American
operations in December of 2006 of USD 190.1  million.  The return on equity from
continuing  operations  was 14.9%,  compared with 4.2% for the fourth quarter of


                                       3



2005.  Gross  premiums  written  over the  quarter  were USD 428.1  million,  an
increase of 10.7% on the prior year quarter.  The combined  ratio for the fourth
quarter  of 2006 was  93.5%,  benefiting  from  the  absence  of  major  natural
catastrophes during the period.



Key financial metrics (USD, unless noted)

                                                           Three months ended   Twelve months ended
                                                            December 31, 2006     December 31, 2006
                                                                  (unaudited)           (unaudited)
                                                                                       
o   Gross premiums written                                              428.1               1,980.9
o   Income from continuing operations, before taxes                      86.4                 255.5
o   Income from continuing operations(1)                                 70.6                 215.0
o   (Loss)/income from discontinued operations(2)                      -191.9                -157.9
o   Net income                                                         -121.3                  57.1
o   Segment income(3)                                                   107.7                 327.0
o   Non-life combined ratio(4)                                          93.5%                 96.3%
o   Average annualized net investment income yield                       4.3%                  4.2%
    (pre-tax)
o   Shareholders' equity                                              1,846.0               1,846.0
o   Return on shareholders' equity(5) from continuing                   14.9%                 13.0%
    operations (annualized)
o   Basic earnings per share from continuing operations                  0.48                  1.47
o   Diluted earnings per share from continuing operations                0.48                  1.45
o   Basic (loss) earnings per share from net income                     -0.83                  0.39
o   Diluted (loss) earnings per share from net income                   -0.82                  0.38



Considerations  on SCOR's  pre-announcement:  Converium's  strategy  expected to
deliver more value

--------------------------

     (1)Continuing  operations  information  (including prior periods presented)
excludes the operating results of the North American  operations and the loss on
sale of Converium Holdings (North America) Inc. in the fourth quarter of 2006.

     (2)Included in loss on sale are net unrealized losses on available-for-sale
securities,  the  currency  impact and  deferred  income tax balance of USD 18.6
million that  previously  have been  recognized  in other  comprehensive  income
(equity) and are realized upon the sale of the North American operations.

     (3)Segment  income is defined as net premiums earned plus total  investment
results minus losses,  loss expenses and life  benefits,  acquisition  costs and
other operating and administration expenses, excluding Corporate Center.

     (4)Non-life  combined  ratio is defined as ongoing  non-life loss ratio (to
net  premiums  earned)  plus ongoing  non-life  acquisition  costs ratio (to net
premiums  earned) plus ongoing  non-life  administration  expense  ratio (to net
premiums written).

     (5)Based  on  shareholders'  equity  from  continuing   operations  at  the
beginning of the period.


                                       4



The Board of Directors of Converium  has noted the  announcement  of an offer by
SCOR,  at CHF 21.1 per share,  for the whole of the share  capital of Converium,
based on closing  share  prices at February  16,  2007,  that was  published  on
February 26, 2007. The Board strongly believes that the offer fails to recognize
Converium's  full stand alone value potential.  In addition,  the Board stresses
the fact that Converium  offers  shareholders  potential value upside due to its
flexibility to return capital.

Converium's  Board considers  SCOR's  acquisition  currency to be weak: the cash
part of SCOR's  offer  would be  financed  by  Converium's  excess  capital  and
Converium  shareholders  would assume significant risk with a stretched combined
balance  sheet.  Further,  given the  significant  stock  element  in the offer,
Converium shareholders would require more visibility on SCOR's stand alone value
potential.

Converium's  Board of Directors is convinced  that the  Company's  current share
price does not reflect its full upside value  following a ratings  upgrade which
Converium has made great  progress to achieving on its own.  SCOR's  unsolicited
approach also entails incalculable business and integration risk.

Converium's  2006 Annual  Report will be  available in  electronic  format on 20
March 2007. The Annual General Meeting is planned to take place on 10 May 2007.





Enquiries

Beat W. Werder                                   Marco Circelli

Head of Public Relations                         Head of Investor Relations
beat.werder@converium.com                        marco.circelli@converium.com
Phone:     +41 44 639 90 22                      Phone:      +41 44 639 91 31
Fax:       +41 44 639 70 22                      Fax:        +41 44 639 71 31


Dr. Kai-Uwe Schanz                               Inken Ehrich

Chief Communication &                            Investor Relations Specialist
Corporate Development Officer                    inken.ehrich@converium.com
kai-uwe.schanz@converium.com                     Phone:      +41 44 639 90 94
Phone:     +41 44 639 90 35                      Fax:        +41 44 639 70 94
Fax:       +41 44 639 70 35


About Converium
Converium is an independent  international  multi-line  reinsurer  known for its
innovation,  professionalism  and service.  Today  Converium  employs  about 500
people in 15 offices  around  the globe and is  organized  into  three  business
segments:  Standard Property & Casualty Reinsurance,  Specialty Lines and Life &
Health  Reinsurance.  Converium has a "BBB+"  financial  strength rating (Credit
Watch  positive) from Standard & Poor's and a "B++"  financial  strength  rating
(outlook positive) from A.M. Best Company.



                                       5



Important Disclaimers
This document contains forward-looking statements as defined in the U.S. Private
Securities Litigation Reform Act of 1995. It contains forward-looking statements
and  information  relating  to the  Company's  financial  condition,  results of
operations,   business,   strategy  and  plans,  based  on  currently  available
information. These statements are often, but not always, made through the use of
words or  phrases  such as  `seek  to',  `expects',  `aims'  `should  continue',
`believes',    `anticipates',    `estimates'   and   `intends'.   The   specific
forward-looking  statements  cover,  among other  matters,  our combined  ratio,
return on equity and premium volume and expense reduction targets,  our plans to
use  capital  more  efficiently  and to  return  capital  to  shareholders,  the
reinsurance  market,  the Company's  operating  results,  the Company's dividend
policy,  our ability to obtain an upgrade of our financial  strength  rating and
the  consequences  of such an upgrade,  the prospects for improving our results,
investment  yield and market share.  Such  statements are inherently  subject to
certain risks and  uncertainties.  Actual future results and trends could differ
materially from those set forth in such statements due to various factors.  Such
factors  include  whether  we are able to secure  an  upgrade  of our  financial
strength  ratings;  our ability to refinance our  outstanding  indebtedness  and
increase our use of hybrid  capital;  uncertainties  of assumptions  used in our
reserving process; risk associated with implementing our business strategies and
our capital improvement measures;  cyclicality of the reinsurance industry;  the
occurrence  of natural and  man-made  catastrophic  events  with a frequency  or
severity exceeding our estimates;  acts of terrorism and acts of war; changes in
economic conditions,  including interest and currency rate conditions that could
affect our investment  portfolio;  actions of  competitors,  including  industry
consolidation and development of competing financial products; a decrease in the
level of demand for our  reinsurance or increased  competition in our industries
or markets;  our ability to expand into emerging  markets;  our ability to enter
into strategic investment partnerships; a loss of our key employees or executive
officers without suitable  replacements being recruited within a suitable period
of time; our ability to address  material  weaknesses we have  identified in our
internal  control  environment;  political  risks in the  countries  in which we
operate or in which we reinsure risks; the passage of additional  legislation or
the  promulgation of new regulation in a jurisdiction in which we or our clients
operate  or where  our  subsidiaries  are  organized;  the  effect on us and the
insurance industry as a result of the investigations being carried out by the US
Securities  and  Exchange  Commission,  New York's  Attorney  General  and other
governmental  authorities;  our ability to regain past  customers  following any
rating  upgrades and the resolution of the  investigations  being carried out by
the US Securities and Exchange Commission, New York's Attorney General and other
governmental  authorities;  changes in our investment results due to the changed
composition of our invested assets or changes in our investment policy;  failure
of our  retrocessional  reinsurers to honor their  obligations or changes in the
credit  worthiness of our  reinsurers;  our failure to prevail in any current or
future  arbitration  or  litigation;  and  extraordinary  events  affecting  our
clients,   such  as  bankruptcies   and   liquidations,   and  other  risks  and
uncertainties,  including those detailed in the Company's  filings with the U.S.
Securities and Exchange  Commission  (including,  but not limited to, our Annual
Report on Form 20-F filed with the U.S. Securities and Exchange  Commission) and
the SWX Swiss Exchange. The Company does not assume any obligation to update any
forward-looking  statements,  whether  as a result  of new  information,  future
events or otherwise.
Additional information and where to find it:
In   connection   with  the  offer  by  SCOR,   Converium   expects  to  file  a
solicitation/recommendation   statement   with  the   Securities   and  Exchange
Commission (the "SEC").  Investors and security  holders are strongly advised to
read these  documents  when they  become  available  because  they will  contain
important  information about the tender offer and the proposed merger. Copies of
the  solicitation/recommendation  statement  will be available free of charge at
the   SEC's   web  site  at   www.sec.gov,   or  at   Converium's   website   at
www.converium.com.
IRS Circular 230 disclosure:
To ensure compliance with requirements  imposed by the Internal Revenue Service,
we  inform  you  that  any  U.S.  tax  advice  contained  in this  communication
(including any attachments) is not intended or written to be used, and cannot be
used, for the purpose of (i) avoiding  penalties under the Internal Revenue Code
or (ii) promoting, marketing or recommending to another party any transaction or
matter addressed herein.


                                       6



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.


                                               CONVERIUM HOLDING AG




                                               By:  /s/ Inga Beale
                                                    Name:  Inga Beale
                                                    Title: CEO




                                               By:  /s/ Christian Felderer
                                                    Name:  Christian Felderer
                                                    Title: General Legal Counsel



Date: March 2, 2007






                                       7