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                       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 (Date of earliest event reported): JUNE 20, 2001



                               LUMINEX CORPORATION
             (Exact name of registrant as specified in its charter)



                                                   

          DELAWARE                     000-30109                    74-2747608
(State or other jurisdiction   (Commission File Number)  (IRS Employer Identification No.)
      of incorporation)



                12212 TECHNOLOGY BLVD.
                     AUSTIN, TEXAS                            78727
       (Address of principal executive offices)            (Zip Code)



       Registrant's telephone number, including area code: (512) 219-8020


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ITEM 5. OTHER EVENTS

                  On June 20, 2001, the Board of Directors of Luminex
Corporation (the "Company") declared a dividend of one right ("Right") for each
outstanding share of the Company's Common Stock, par value $.001 per share
("Common Stock"), to stockholders of record at the close of business on July 2,
2001. Each Right entitles the registered holder to purchase from the Company a
unit consisting of one one-hundredth of a share (a "Fractional Share") of Series
A Junior Participating Preferred Stock, par value $.001 per share (the
"Preferred Stock"), at a purchase price of $100 per Fractional Share, subject to
adjustment (the "Purchase Price"). The description and terms of the Rights are
set forth in a Rights Agreement dated as of June 20, 2001, as it may from time
to time be supplemented or amended (the "Rights Agreement") between the Company
and Mellon Investor Services LLC, as Rights Agent.

                  Initially, the Rights will be attached to all certificates
representing outstanding shares of Common Stock, and no separate certificates
for the Rights ("Rights Certificates") will be distributed. The Rights will
separate from the Common Stock and a "Distribution Date" will occur, with
certain exceptions, upon the earlier of (i) ten days following a public
announcement that a person or group of affiliated or associated persons (an
"Acquiring Person") has acquired, or obtained the right to acquire, beneficial
ownership of 20% or more of the outstanding shares of Common Stock (the date of
the announcement being the "Stock Acquisition Date"), or (ii) ten business days
following the commencement of a tender offer or exchange offer that would result
in a person's becoming an Acquiring Person. In certain circumstances, the
Distribution Date may be deferred by the Board of Directors. Certain inadvertent
acquisitions will not result in a person's becoming an Acquiring Person if the
person promptly divests itself of sufficient Common Stock. Until the
Distribution Date, (a) the Rights will be evidenced by the Common Stock
certificates (together with a copy of this Summary of Rights or bearing the
notation referred to below) and will be transferred with and only with such
Common Stock certificates, (b) new Common Stock certificates issued after July
2, 2001 will contain a notation incorporating the Rights Agreement by reference
and (c) the surrender for transfer of any certificate for Common Stock (with or
without a copy of this Summary of Rights) will also constitute the transfer of
the Rights associated with the Common Stock represented by such certificate.

                  The Rights are not exercisable until the Distribution Date and
will expire at the close of business on June 20, 2011, unless earlier redeemed
or exchanged by the Company as described below.

                  As soon as practicable after the Distribution Date, Rights
Certificates will be mailed to holders of record of Common Stock as of the close
of business on the Distribution Date and, from and after the Distribution Date,
the separate Rights Certificates alone will represent the Rights. All shares of
Common Stock issued prior to the Distribution Date will be issued with Rights.
Shares of Common Stock issued after the Distribution Date in connection with
certain employee benefit plans or upon conversion of certain securities will be
issued with Rights. Except as otherwise determined by the Board of Directors, no
other shares of Common Stock issued after the Distribution Date will be issued
with Rights.


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                  In the event (a "Flip-In Event") that a person becomes an
Acquiring Person (except pursuant to a tender or exchange offer for all
outstanding shares of Common Stock at a price and on terms that a majority of
the independent directors of the Company determines to be fair to and otherwise
in the best interests of the Company and its stockholders (a "Permitted
Offer")), each holder of a Right will thereafter have the right to receive, upon
exercise of such Right, a number of shares of Common Stock (or, in certain
circumstances, cash, property or other securities of the Company) having a
Current Market Price (as defined in the Rights Agreement) equal to two times the
exercise price of the Right. Notwithstanding the foregoing, following the
occurrence of any Triggering Event, all Rights that are, or (under certain
circumstances specified in the Rights Agreement) were, beneficially owned by or
transferred to an Acquiring Person (or by certain related parties) will be null
and void in the circumstances set forth in the Rights Agreement. However, Rights
are not exercisable following the occurrence of any Flip-In Event until such
time as the Rights are no longer redeemable by the Company as set forth below.

                  In the event (a "Flip-Over Event") that, at any time from and
after the time an Acquiring Person becomes such, (i) the Company is acquired in
a merger or other business combination transaction (other than certain mergers
that follow a Permitted Offer), or (ii) 50% or more of the Company's assets,
cash flow or earning power is sold or transferred, each holder of a Right
(except Rights that are voided as set forth above) shall thereafter have the
right to receive, upon exercise, a number of shares of common stock of the
acquiring company having a Current Market Price equal to two times the exercise
price of the Right. Flip-In Events and Flip-Over Events are collectively
referred to as "Triggering Events."

                  The number of outstanding Rights associated with a share of
Common Stock, or the number of Fractional Shares of Preferred Stock issuable
upon exercise of a Right and the Purchase Price, are subject to adjustment in
the event of a stock dividend on, or a subdivision, combination or
reclassification of, the Common Stock occurring prior to the Distribution Date.
The Purchase Price payable, and the number of Fractional Shares of Preferred
Stock or other securities or property issuable, upon exercise of the Rights are
subject to adjustment from time to time to prevent dilution in the event of
certain transactions affecting the Preferred Stock.

                  With certain exceptions, no adjustment in the Purchase Price
will be required until cumulative adjustments amount to at least 1% of the
Purchase Price. No fractional shares of Preferred Stock that are not integral
multiples of a Fractional Share are required to be issued upon exercise of
Rights and, in lieu thereof, an adjustment in cash may be made based on the
market price of the Preferred Stock on the last trading date prior to the date
of exercise. Pursuant to the Rights Agreement, the Company reserves the right to
require prior to the occurrence of a Triggering Event that, upon any exercise of
Rights, a number of Rights be exercised so that only whole shares of Preferred
Stock will be issued.

                  At any time until ten days following the first date of public
announcement of the occurrence of a Flip-In Event, the Company may redeem the
Rights in whole, but not in part, at a price of $.01 per Right, payable, at the
option of the Company, in cash, shares of Common Stock or such other
consideration as the Board of Directors may determine. Immediately upon the
effectiveness of the action of the Board of Directors ordering redemption of the
Rights, the



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Rights will terminate and the only right of the holders of Rights will be to
receive the $.01 redemption price.

                  At any time after the occurrence of a Flip-In Event and prior
to a person's becoming the beneficial owner of 50% or more of the shares of
Common Stock then outstanding or the occurrence of a Flip-Over Event, the
Company may exchange the Rights (other than Rights owned by an Acquiring Person
or an affiliate or an associate of an Acquiring Person, which will have become
void), in whole or in part, at an exchange ratio of one share of Common Stock,
and/or other equity securities deemed to have the same value as one share of
Common Stock, per Right, subject to adjustment.

                  Until a Right is exercised, the holder thereof, as such, will
have no rights as a stockholder of the Company, including, without limitation,
the right to vote or to receive dividends. While the distribution of the Rights
should not be taxable to stockholders or to the Company, stockholders may,
depending upon the circumstances, recognize taxable income in the event that the
Rights become exercisable for Common Stock (or other consideration) of the
Company or for the common stock of the acquiring company as set forth above or
are exchanged as provided in the preceding paragraph.

                  Other than the redemption price, any of the provisions of the
Rights Agreement may be amended by the Board of Directors of the Company as long
as the Rights are redeemable. Thereafter, the provisions of the Rights Agreement
other than the redemption price may be amended by the Board of Directors in
order to cure any ambiguity, defect or inconsistency, to make changes that do
not materially adversely affect the interests of holders of Rights (excluding
the interests of any Acquiring Person), or to shorten or lengthen any time
period under the Rights Agreement; provided, however, that no amendment to
lengthen the time period governing redemption shall be made at such time as the
Rights are not redeemable.

                  A copy of the Rights Agreement has been filed with the
Securities and Exchange Commission as an exhibit to this Current Report on Form
8-K. A copy of the Rights Agreement is also available free of charge from the
Company. This summary description of the Rights and the Rights Agreement does
not purport to be complete and is qualified in its entirety by reference to the
Rights Agreement, which is incorporated herein by reference.

                  The Rights will have certain anti-takeover effects. The Rights
will cause substantial dilution to any person or group that attempts to acquire
the Company without the approval of the Company's Board of Directors. As a
result, the overall effect of the Rights may be to render more difficult or
discourage any attempt to acquire the Company even if such acquisition may be
favorable to the interests of the Company's stockholders. Because the Company's
Board of Directors can redeem the Rights or approve a Permitted Offer, the
Rights should not interfere with a merger or other business combination approved
by the Board of Directors of the Company.

                  The information set forth in the Company's press release dated
June 20, 2001, included herewith as Exhibit 99, is incorporated by reference
into this Current Report on Form 8-K.


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ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

                  (c)      Exhibits

                           4.       Rights Agreement dated as of June 20, 2001
                                    between Luminex Corporation and Mellon
                                    Investor Services LLC, as Rights Agent,
                                    which includes as Exhibit A the form of
                                    Certificate of Designations of Series A
                                    Junior Participating Preferred Stock setting
                                    forth the terms of the Series A Junior
                                    Participating Preferred Stock, as Exhibit B
                                    the form of Rights Certificate and as
                                    Exhibit C the Summary of Rights. Pursuant to
                                    the Rights Agreement, Rights Certificates
                                    will not be mailed until after the
                                    Distribution Date (as defined in the Rights
                                    Agreement).

                           99.      Press release issued by the Company dated
                                    June 20, 2001.




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                                    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.

                                    LUMINEX CORPORATION



Date:  June 20, 2001                By: /s/ MICHAEL L. BENGTSON
                                       -----------------------------------------
                                       Name:  Michael L. Bengtson
                                       Title: Executive Vice President & General
                                              Counsel










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                                  EXHIBIT INDEX




EXHIBIT
NUMBER            DESCRIPTION
- -------           -----------
               


  4.              Rights Agreement dated as of June 20, 2001 between Luminex
                  Corporation and Mellon Investor Services LLC, as Rights Agent,
                  which includes as Exhibit A the form of Certificate of
                  Designations of Series A Junior Participating Preferred Stock
                  setting forth the terms of the Series A Junior Participating
                  Preferred Stock, as Exhibit B the form of Rights Certificate
                  and as Exhibit C the Summary of Rights. Pursuant to the Rights
                  Agreement, Rights Certificates will not be mailed until after
                  the Distribution Date (as defined in the Rights Agreement).

  99.             Press release issued by the Company dated June 20, 2001.






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