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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1033905	Luminex Corp	LMNX	Surgical & Medical Instruments & Apparatus (3841)	742747608

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1105966	Ii Walter G Loewenbaum	12212 Technology Boulevard Austin TX 78727		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2013-05-02	4,765	$16.74	548,392	No	4	P	Direct
Common Stock	Acquisiton	2013-05-03	20,000	$17.09	568,392	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct
No	4	P	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	96,614	Indirect	Partnership
Common Stock	954,960	Indirect	Trusts
Common Stock	860,491	Indirect	Spouse

Footnotes

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $17.05 to $17.14 inclusive. Mr. Loewenbaum undertakes to provide to LuminexCorporation, any security holder of Luminex Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote 1 to this Form 4.
The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.