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Filing Details

Accession Number:: 0001127602-11-032513
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2011-12-16 15:03:17
Reporting Period:: 2011-12-14

Filing Date:: 2011-12-16
Accepted Time:: 2011-12-16 15:03:17
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
912145	Ameristar Casinos Inc	ASCA	Hotels & Motels (7011)	880304799

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1209843	Peter Walsh	16633 Ventura Boulevard Suite 1050 Encino CA 91436	Svp, Gc, Chief Admin Officer	No	Yes	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2011-12-14	6,500	$13.18	45,147	No	4	M	Indirect	Family Trust
Common Stock	Disposition	2011-12-14	5,400	$17.15	39,747	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-14	300	$17.15	39,447	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-14	100	$17.16	39,347	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-14	600	$17.17	38,747	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-14	100	$17.22	38,647	No	4	S	Indirect	Family Trust
Common Stock	Acquisiton	2011-12-15	10,718	$13.18	49,365	No	4	M	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	3,124	$17.15	46,241	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	2,096	$17.15	44,145	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	676	$17.16	43,469	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	600	$17.16	42,869	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	300	$17.16	42,569	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	200	$17.17	42,369	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	300	$17.17	42,069	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	300	$17.17	41,769	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	400	$17.18	41,369	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	100	$17.19	41,269	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	200	$17.20	41,069	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	500	$17.20	40,569	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	400	$17.21	40,169	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	200	$17.22	39,969	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	300	$17.23	39,669	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	522	$17.24	39,147	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	400	$17.25	38,747	No	4	S	Indirect	Family Trust
Common Stock	Disposition	2011-12-15	100	$17.26	38,647	No	4	S	Indirect	Family Trust

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	M	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust
No	4	S	Indirect	Family Trust

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2011-12-14	6,500	$0.00	6,500	$13.18
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2011-12-15	10,718	$0.00	10,718	$13.18

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
103,500	2003-04-02	2012-03-08	No	4	M	Indirect
92,782	2003-04-02	2012-03-08	No	4	M	Indirect

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	84,890	Direct

Footnotes

Securities owned by the Walsh Family Trust dated 9-11-03, of which Mr. Walsh and his spouse are co-trustees.
Balance includes previously reported restricted stock units and performance share units, each of which constitutes the right to receive one share of common stock in the future.
Option vested in five equal annual installments commencing on April 2, 2003.