<PAGE> 1
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-A/A
FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
PURSUANT TO SECTION 12(b) OR (g) OF THE
SECURITIES EXCHANGE ACT OF 1934
Concentra Corporation
(Exact name of registrant as specified in its charter)
Delaware 04-2827026
(State of incorporation or organization) (I.R.S. Employer
Identification No.)
21 North Avenue, Burlington, Massachusetts 01803-3301
(Address of principal executive offices) (Zip Code)
If this Form relates to the registration of a class of debt securities and is
effective upon filing pursuant to General Instructions A.(c)(1), please check
the following box. [ ]
If this Form relates to the registration of a class of debt securities and is to
become effective simultaneously with the effectiveness of a concurrent
registration statement under the Securities Act of 1933 pursuant to General
Instruction A.(c)(2), please check the following box. [ ]
Securities to be registered pursuant to Section 12(b) of the Act: None
Securities to be registered pursuant to Section 12(g) of the Act:
Title of each class Name of each exchange on which
to be so registered each class is to be registered
Rights to Purchase
Series A Participating NASDAQ
Cumulative Preferred Stock
<PAGE> 2
SIGNATURE
Pursuant to the requirements of Section 12 of the Securities Exchange Act
of 1934, the registrant has duly caused this registration statement to be signed
on its behalf by the undersigned, thereto duly authorized.
CONCENTRA CORPORATION
By: /s/ William E. Kelly
---------------------
William E. Kelly
Secretary
Dated: May 7, 1997
