SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Sexton Thomas G

(Last)

(First)

(Middle)

7480 FLYING CLOUD DRIVE

(Street)

MINNEAPOLIS

55344-3720

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
08/08/2011

3. Issuer Name and Ticker or Trading Symbol
ALLIANT TECHSYSTEMS INC [ ATK ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	VP and Interim CFO

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	3,125⁽¹⁾	D
Common Stock	1,593.7026⁽²⁾	I	By 401(k) Plan

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Deferred Stock Units	⁽³⁾	⁽³⁾	Common Stock	2,675.0829	⁽³⁾	D
Phantom Stock Units	⁽⁵⁾	⁽⁵⁾	Common Stock	83.4244	⁽⁴⁾	D
Employee Stock Option (right to buy)	01/22/2002	01/22/2012	Common Stock	2,250	$47.746	D
Employee Stock Option (right to buy)	01/21/2003	01/21/2013	Common Stock	4,500	$59.12	D
Employee Stock Option (right to buy)	01/31/2005	01/31/2012	Common Stock	3,600	$66.58	D

Explanation of Responses:

1. 1,175 shares are subject to certain restrictions (including possible forfeiture) applicable to restricted stock grants under the Issuer's 2005 Stock Incentive Plan.

2. Based on a plan statement dated 06-30-11.

3. 2,660 of the Deferred Stock Units were credited to the reporting person's account under the Issuer's Nonqualified Deferred Compensation Plan (NQDCP) in lieu of a payment by the Issuer of performance shares under the Issuer's 1990 Equity Incentive Plan. The additional Deferred Stock Units were acquired through the deemed reinvestment of dividend equivalents under the NQDCP. The Deferred Stock Units will be settled 100% in shares of the Issuer's common stock following the reporting person's termination of employment or such other date specified by the reporting person under the terms of the NQDCP. Additional Deferred Stock Units acquired through the deemed reinvestment of dividend equivalents will be settled in shares of common stock issued under the Issuer's 2005 Stock Incentive Plan.

4. 1-for-1.

5. 82.954 of the Phantom Stock Units were credited to the reporting person's account under the NQDCP in lieu of a payment by the Issuer of performance shares under the Issuer's 1990 Equity Incentive Plan. The additional Phantom Stock Units were acquired through the deemed reinvestment of dividend equivalents in the NQDCP. The Phantom Stock Units will be settled in cash following the reporting person's termination of employment or such other date specified by the reporting person. NQDCP participants may reallocate amounts between the Phantom Stock Unit investment alternative and other investment accounts during a 10-day window period each quarter.

	/s/Thomas G. Sexton	08/08/2011
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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