Mattel Inc.

MAT·NASDAQ·$14.53Share Price as of 11/2·$5BMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/06/26 10-QQ1 ended 03/31/2605/01/26 10-KFY 202502/23/26 10-QQ3 ended 09/30/2510/29/25 10-QQ2 ended 06/30/2507/29/25

Disclosures

8-KCurrent report10/22/26 8-KCurrent report10/19/26 8-KCurrent report10/14/26 8-KCurrent report09/30/26 8-KCurrent report08/04/26

Prospectuses and Registrations

424B2Prospectus for primary offering11/07/25 FWPFree writing prospectus11/06/25 424B2Prospectus for primary offering11/05/25 S-3ASRAutomatic shelf registration10/30/25 S-8Registration of securities for employees08/09/22

Proxies

PX14A6GLetter to shareholders05/07/26 DEF 14ADefinitive proxy04/14/26 DEFA14AAdditional proxy materials04/14/26 PX14A6GLetter to shareholders04/24/25 DEF 14ADefinitive proxy04/03/25

Ownership

Form 3Initial insider ownership10/23/26 Form 4Insider transaction10/23/26 Form 3Initial insider ownership10/22/26 SC 13DBeneficial ownership10/22/26 Form 3Initial insider ownership10/21/26

Other

11-KEmployee stock purchase plan report06/25/26 SDConflict Minerals disclosure05/29/26 ARSAnnual report to shareholders04/14/26 11-KEmployee stock purchase plan report06/18/25 SDConflict Minerals disclosure05/30/25