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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1292556	Polypore International Inc.	PPO	Miscellaneous Chemical Products (2890)	432049334

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1392950	John O'malley	C/O Polypore International, Inc. 11430 N. Community House Road, Suite 350 Charlotte NC 28277	Senior Vp, Human Resources	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock, Par Value $.01 Per Share	Acquisiton	2010-12-20	34,166	$5.24	38,166	No	4	M	Direct
Common Stock, Par Value $.01 Per Share	Disposition	2010-12-20	34,166	$43.00	4,000	No	4	S	Direct
Common Stock, Par Value $.01 Per Share	Acquisiton	2010-12-21	22,500	$5.24	26,500	No	4	M	Direct
Common Stock, Par Value $.01 Per Share	Disposition	2010-12-21	22,500	$43.09	4,000	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Options (right to buy)	Acquisiton	2010-12-20	34,166	$0.00	34,166	$5.24
Common Stock	Employee Stock Options (right to buy)	Acquisiton	2010-12-21	22,500	$0.00	22,500	$5.24

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
22,500		2016-06-15	No	4	M	Direct
0		2016-06-15	No	4	M	Direct

Footnotes

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2010.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.85 to $43.75, inclusive. The reporting person undertakes to provide Polypore International, Inc., any security holder of Polypore International, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) and (3) to this Form 4.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.00 to $43.51, inclusive.
The options vested in four equal annual installments beginning on March 9, 2007, and therefore are currently exercisable.