Aradigm (ARDMQ) 8-K Approximately 14.6 Million Shares to Be Outstanding

UNITED STATES
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: December 12, 2005 (Date of earliest event reported)
Aradigm Corporation (Exact name of registrant as specified in its charter)
CA (State or other jurisdiction of incorporation)	0-28402 (Commission File Number)	94-3133088 (IRS Employer Identification Number)
3929 Point Eden Way (Address of principal executive offices)		94545 (Zip Code)
510-265-9000 (Registrant's telephone number, including area code)
Not Applicable (Former Name or Former Address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

x Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01. Other Events



In a press release dated December 12, 2005, Aradigm Corporation announced that its Board of Directors has authorized a reverse split of the Company's common stock at a ratio of 1-for-5, which Aradigm expects to take effect on January 4, 2006. The Company's shareholders approved the reverse stock split in January 2005.

Item 9.01. Financial Statements and Exhibits

(a) Financial statements:
            None
(b) Pro forma financial information:
            None
(c) Exhibits
            99.1       Press Release of Aradigm Corporation dated December 12, 2005

SIGNATURE

      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.

Dated: December 12, 2005
ARADIGM CORPORATION By:  /s/ Thomas C. Chesterman                    
     Thomas C. Chesterman
     Senior Vice President and Chief Financial Officer

Exhibit Index
Exhibit No.	Description
99.1	Press Release of Aradigm Corporation dated December 12, 2005