SIERRA HEALTH SERVICES INC

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Certification of termination of registration of a class of securities (Section 12(b))

Annual report pursuant to Section 13 or 15(d)

Notification of late filing of Form 10-K

1.01,1.02,3.01,5.01

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Notification of removal from listing and/or registration on a national securities exchange

Post Effective Amendment to S-8

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G) (amendment)

Letter from the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

General form for quarterly reports under Section 13 or 15(d)

2.02

Correspondence with the SEC

Correspondence with the SEC

Other Events

Other Events

Beneficial ownership report for a passive holder of more than 5% (Schedule 13G)

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Other Events

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Additional Information for Proxy Statement/ Votes

Other Events

8.01,9.01

No description available

Other Events

Other Events

Annual report pursuant to Section 13 or 15(d) (amendment)

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

No description available

1.01,5.02

Entry into a Material Definitive Agreement

Entry into a Material Definitive Agreement

Annual report pursuant to Section 13 or 15(d)

7.01,9.01

Results of Operations and Financial Condition

3.02

2.03

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

3.02

General form for quarterly reports under Section 13 or 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual Report Scanned (Paper)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Prospectus Supplement for Primary Offering

General form for quarterly reports under Section 13 or 15(d)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement for Primary Offering

General form for quarterly reports under Section 13 or 15(d)

Annual Report Scanned (Paper)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

General form for quarterly reports under Section 13 or 15(d)

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Definitive Proxy Statement

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Required Information in Proxy Statement

Definitive Proxy Statement

No description available

Annual reports of employee stock purchase savings and similar plans pursuant to Section 15(d)

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Sivertsen Darren G.D.

Briggs Marc R

BUNKER JONATHON W

COLLINS FRANK E

Giancursio Donald J

GREENE ALBERT L

HARTLEY THOMAS Y

LUCE MICHAEL E

MARLON ANTHONY M MD

RUTHE CHARLES L

WATSON ANTHONY L

GREENE ALBERT L

GREENE ALBERT L