Party City Holdco Inc.

General form for quarterly reports under 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 report pursuant to Section 13 or 15(d) (amendment)

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

Annual report pursuant to Section 13 or 15(d)

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

5.02,9.01

5.02

4.01

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

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

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

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

1.01,1.02,2.03,3.02,3.03,5.01,5.02,5.03,7.01,9.01

8.01

5.02

1.03,7.01,9.01

1.01,9.01

8.01

5.02,9.01

1.01,7.01,9.01

4.01,4.02,9.01

Notice of Effectiveness

Notice of Effectiveness

Post Effective Amendment to S-8

Post-effective amendment to a registration statement

Post-effective amendment to a registration statement

Post Effective Amendment to S-8

7.01,9.01

Notification of late filing of Form 10-K

7.01,9.01

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)

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

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

1.01,2.03,3.01,9.01

1.01,1.03,2.04,5.02,7.01,8.01,9.01

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

3.01,7.01,9.01

5.02,9.01

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

2.02,5.02,8.01,9.01

Letter from the SEC

Correspondence with the SEC

5.02

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

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

Specialized Disclosure Report

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

Additional Information for Proxy Statement/ Votes

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)

Specialized Disclosure Report

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

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Annual report pursuant to Section 13 or 15(d)

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

Notice of Effectiveness

Letter from the SEC

Correspondence with the SEC

Registration statement under Securities Act of 1933

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

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

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

Specialized Disclosure Report

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Preliminary Proxy Statement

Annual report pursuant to Section 13 or 15(d)

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

Specialized Disclosure Report

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Preliminary Proxy Statement

Prospectus Supplement with Pricing Information

Prospectus Supplement with Pricing Information

Specialized Disclosure Report

Prospectus Supplement with Pricing Information

Prospectus Supplement with Pricing Information

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Prospectus Supplement with Pricing Information

Prospectus Supplement with Pricing Information

Free Writing Prospectus

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Specialized Disclosure Report

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Notice of Effectiveness

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Registration statement under Securities Act of 1933

Correspondence with the SEC

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

DAVIDSON KEMPNER PARTNERS

MULE EDWARD A

Capital World Investors

Vogensen Todd E.

Smith Peter Royer

Thompson Sean

Vogensen Todd E.

Weston Bradley Morgan

Kulikowsky Denise

SOSIN CLIFFORD

Kulikowsky Denise

Weston Bradley Morgan