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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1130258	Acme Packet Inc	APKT	Computer Communications Equipment (3576)	043526641

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1529294	Marianne Budnik	C/O Acme Packet, Inc. 100 Crosby Drive Bedford MA 01730	Chief Marketing Officer	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	Acquisiton	2012-09-01	5,000	$0.00	5,000	No	4	M	Direct
Common Stock	Disposition	2012-09-04	1,617	$18.77	3,383	No	4	S	Direct
Common Stock	Acquisiton	2012-10-01	1,250	$0.00	4,633	No	4	M	Direct
Common Stock	Disposition	2012-11-01	383	$17.69	4,250	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	Restricted Stock Unit	Disposition	2012-09-01	5,000	$0.00	5,000	$0.00
Common Stock	Restricted Stock Unit	Disposition	2012-10-01	1,250	$0.00	1,250	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
5,000			No	4	M	Direct
1,250			No	4	M	Direct

Footnotes

Each restricted stock unit, once vested, represents a contingent right to receive one share of Acme Packet, Inc. common stock. Upon vesting, the restricted stock units settle on a one-for-one basis as shares of Acme Packet, Inc. common stock.
Twenty-five percent of the shares underlying the restricted stock units vested on September 1, 2012 and the balance of the shares vest in quarterly installments on the first day of each calendar quarter beginning on October 1, 2012 and ending on September 1, 2015.