<PAGE> 1
Filed Pursuant to Rule 424(b)(3)
Registration No.: 333-53457
SENSORMATIC ELECTRONICS CORPORATION
SUPPLEMENT NUMBER SEVEN TO PROSPECTUS DATED DECEMBER 20, 2000
This Supplement is a part of the Prospectus dated December 20, 1999
relating to 6,900,000 Depositary Shares ("Depositary Shares"), each representing
a one-tenth interest in a share of 6 1/2% Convertible Preferred Stock, par value
$.01 per share ("Preferred Stock"), of Sensormatic Electronics Corporation
("Sensormatic"). The Prospectus (as well as this Supplement) also relates to
690,000 shares of the Preferred Stock and certain shares of Common Stock, par
value $.01 per share, of Sensormatic, issued upon conversion of such Depositary
Shares and/or Preferred Stock and issued or issuable in payment of dividends and
certain premium payments with respect to the Preferred Stock. The Prospectus was
previously supplemented by Supplement Number One dated January 24, 2000,
Supplement Number Two dated January 25, 2000, Supplement Number Three dated
February 15, 2000, Supplement Number Four dated April 6, 2000, Supplement Number
Five dated May 10, 2000 and Supplement Number Six dated May 30, 2000. Defined
terms contained in this Supplement have the meanings assigned to them in the
Prospectus.
The following updates certain information concerning the Selling
Securityholders and the securities of Sensormatic held by them, as set forth in
the Prospectus under the caption "Selling Security Holders", based on
information received from the Selling Securityholders named below after the date
of the Prospectus and prior to the date hereof. The information concerning the
Selling Securityholders in the Prospectus (including any previous Supplement) is
not being updated to show sales, except to the extent that any such sales are
reflected in the current beneficial ownership information set forth below.
Except as amended or supplemented hereby or as contemplated by the preceding
sentence, the information in the Prospectus concerning the Selling
Securityholders and the securities of Sensormatic held by them, as previously
amended by any Supplements previously filed, remains in full force and effect.
<TABLE>
<CAPTION>
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Common Stock Depositary Shares
-----------------------------------------------------------------------------------------------------------------------
Bene- Bene-
ficially ficially
Owned Owned
Beneficially Offered After Offered After
Name of Selling Owned Prior to for This Beneficially Owned for This
Securityholder This Offering Sale Offering Prior to This Offering Sale Offering
-----------------------------------------------------------------------------------------------------------------------
No. of % of
No. of % of Depositary Depositary
Shares Shares Shares Shares
-----------------------------------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C>
Lehman Brothers Inc. (1) 188,464 * 188,464 0 136,934 1.98 136,934 0
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Total 188,464 * 188,464 0 136,934 1.98 136,934 0
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</TABLE>
<TABLE>
<CAPTION>
------------------------------------------------------------------------
6 1/2% Convertible Preferred Stock
------------------------------------------------------------------------
Bene-
ficially
Owned
Offered After
Name of Selling Beneficially Owned for This
Securityholder Prior to This Offering Sale Offering
------------------------------------------------------------------------
No. of
Shares of % of
Preferred Preferred
Stock Stock
------------------------------------------------------------------------
<S> <C> <C> <C> <C>
Lehman Brothers Inc. (1) 13,693 1.98 13,934 0
------------------------------------------------------------------------
Total 13,693 1.98 13,934 0
------------------------------------------------------------------------
</TABLE>
(1) The information in this Supplement reflects the current beneficial
ownership information for this Selling Securityholder as of the date of
this filing and accordingly amends and supersedes the information
concerning this Selling Securityholder in the Prospectus or any Supplement
thereto filed prior to the date of this Supplement. Lehman Brothers Inc.
provides investment banking services to the Company and was one of four
initial purchasers in a private placement by the Company of the Preferred
Stock and Depositary Shares. Lehman Brothers Inc. has acted as lead or
co-lead manager on securities offerings of Sensormatic. Additionally,
Lehman Brothers Inc. has acted as financial advisor in connection with the
acquisition of certain business by the Company and has provided and may
provide other financial advisory services to the Company.
THE DATE OF THIS SUPPLEMENT IS JUNE 21, 2000
