AGA Medical Holdings, Inc.

2.01,3.01,3.03,5.01,5.02,5.03,9.01

Tender offer statement by a third party (amendment)

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

Post Effective Amendment to S-8

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Tender offer statement by a third party (amendment)

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

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Correspondence with the SEC

Letter from the SEC

Letter from the SEC

Letter from the SEC

Letter from the SEC

Written communication about a business combination transaction (Rule 425)

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

Results of Operations and Financial Condition

Correspondence with the SEC

Correspondence with the SEC

Written communication about a business combination transaction (Rule 425)

1.01,8.01,9.01

No description available

Written communication about a business combination transaction (Rule 425)

8.01

8.01,9.01

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

2.02,9.01

Submission of Matters to a Vote of Security Holders

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

Results of Operations and Financial Condition

Annual Report Scanned (Paper)

Definitive Proxy Statement

1.01,9.01

Annual report pursuant to Section 13 or 15(d)

2.02,9.01

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

Results of Operations and Financial Condition

2.02,9.01

Letter from the SEC

3.03,5.02,5.03,8.01,9.01

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

Free Writing Prospectus

Prospectus Supplement with Pricing Information

Correspondence with the SEC

No description available

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Amended Initial Registration Statement

Free Writing Prospectus

Notice of Effectiveness

Amended Initial Registration Statement

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Registration of Securities on Exchange

Correspondence with the SEC

Amended Initial Registration Statement

Letter from the SEC

Amended Initial Registration Statement

WELSH PATRICK J

ALMEIDA JOHN

CLARK JOHN D

MCINERNEY THOMAS E

DENICOLA ANTHONY J

QUAELLY PAUL B

RATHER JONATHAN M

Scully Thomas

Lee Eric J.

TRAYNOR SEAN

MACKESY D SCOTT

SWANI SANJAY

WCAS MANAGEMENT CORP

WCAS Capital Partners IV, L.P.

MINICUCCI ROBERT A

ANDERSON BRUCE K

WELSH CARSON ANDERSON & STOWE IX LP

CARSON RUSSELL L