MANNATECH INC — Director's Dealing 2010

Aug 17, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MANNATECH INC (MTEX)
CIK: 0001056358
Period of Report: 2010-08-13

Reporting Person: Spinell Gary Michael (Sr VP Finance & Admin)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-08-13	Right to Purchase Common Stock	$11.21	D	20000	Disposed	2016-06-11	Common Stock, Par Value $0.0001 per share (20000)	Direct
2010-08-13	Right to Purchase Common Stock	$7.31	D	3000	Disposed	2017-09-05	Common Stock, Par Value $0.0001 per share (3000)	Direct
2010-08-16	Right to Purchase Common Stock	$2.46	A	10190	Acquired	2020-08-15	Common Stock, Par Value $0.0001 per share (10190)	Direct

Footnotes

F1: The option provided for vesting in three equal annual installments beginning June 12, 2007.

F2: The option provided for vesting in three equal annual installments beginning September 6, 2008.

F3: On August 16, 2010, the issuer canceled, pursuant to the issuer's option exchange program, an option for 20,000 shares of Mannatech common stock granted to the reporting person on June 12, 2006. In exchange, the reporting person received a replacement option, for 8,470 shares, having an exercise price of $2.46 a share.

F4: On August 16, 2010, the issuer canceled, pursuant to the issuer's option exchange program, an option for 3,000 shares of Mannatech common stock granted to the reporting person on September 6, 2007. In exchange, the reporting person received a replacement option, for 1,720 shares, having an exercise price of $2.46 a share.

F5: The option vests in three equal annual installments beginning August 16, 2011.