<PAGE>
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q/A
AMENDMENT NO. 1 TO QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended June 30, 2000
Commission File Number 0-8287
LINDBERG CORPORATION
(Exact name of registrant as specified in its charter)
<PAGE>
-2-
This Form 10-Q/A is being filed because the following Item 4 and the attached
exhibit 3 required by Regulation S-K, Item 601 (b) (3) (ii) were inadvertently
omitted from the original Form 10-Q filing.
ITEM 4. Submission of Matters to a Vote of Security Holders
(a) The registrant held its annual meeting of stockholders on April 28, 2000.
(c) At the meeting, stockholders re-elected the board's two nominees for
class III directors. The elected nominees received the following votes:
Votes For Authority Withheld
--------- ------------------
W. R. Reum 5,133,204 73,538
L. G. Thompson 5,132,804 73,938
<PAGE>
-3-
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.
LINDBERG CORPORATION
By/s/Stephen S. Penley
-------------------------
Stephen S. Penley
Executive Vice President
and Chief Financial Officer
(Principal Financial and Accounting Officer)
Date: August 25, 2000