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Automatic Data Processing, Inc. (ADP) Form DEFA14A: Additional definitive proxy soliciting materials

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Automatic Data Processing, Inc. Form DEFA14A: Additional definitive proxy soliciting materials

Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.

  • 2026-09-24: Form DEFA14A; Description DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS; Document adp015474-defa14a.htm.
  • 2025-09-25: Form DEFA14A; Description DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS; Document adp014341-defa14a.htm.
  • 2024-09-19: Form DEFA14A; Description DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS; Document adp4345811-defa14a.htm.
  • 2023-09-21: Form DEFA14A; Description DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS; Document adp4229101-defa14a.htm.
FiledFormPeriod of reportDescriptionDocument
2026-09-24DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp015474-defa14a.htm
2025-09-25DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp014341-defa14a.htm
2024-09-19DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp4345811-defa14a.htm
2023-09-21DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp4229101-defa14a.htm
2022-09-22DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp4094281-defa14a.htm
2021-09-23DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp3935971-defa14a.htm
2020-09-24DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp3788011-defa14a.htm
2019-09-26DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp3610941-defa14a.htm
2018-09-20DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp3453541-defa14a.htm
2017-11-02DEFA14ADEFA14Aeh1701094_defa14a.htm
2017-11-01DEFA14ADEFA14Aeh1701092_defa14a.htm
2017-11-01DEFA14ADEFA14Aeh1701091_defa14a.htm
2017-10-31DEFA14ADEFA14Aeh1701087_defa14a.htm
2017-10-31DEFA14ADEFA14Aeh1701088_defa14a.htm
2017-10-30DEFA14ADEFA14Aeh1701086_defa14a.htm
2017-10-26DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp3329061-defa14a.htm
2017-10-26DEFA14ADEFA14Aeh1701081_defa14a.htm
2017-10-26DEFA14ADEFA14Aeh1701080_defa14a.htm
2017-10-26DEFA14ADEFA14Aeh1701075_defa14a.htm
2017-10-25DEFA14ADEFA14Aeh1701074_defa14a.htm
2017-10-23DEFA14ADEFA14Aeh1701067_defa14a.htm
2017-10-19DEFA14ADEFA14Aeh1701066_defa14a.htm
2017-10-18DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp3324561-defa14a.htm
2017-10-18DEFA14ADEFA14Aeh1701062_defa14a.htm
2017-10-18DEFA14ADEFA14Aeh1701061_defa14a.htm
2017-10-17DEFA14ADEFA14Aeh1701058_defa14a.htm
2017-10-13DEFA14ADEFA14Aeh1701047_defa14a.htm
2017-10-10DEFA14ADEFA14Aeh1701040_defa14a.htm
2017-10-06DEFA14ADEFA14Aeh1701035_defa14a-qa.htm
2017-10-05DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp3317611-defa14a.htm
2017-10-05DEFA14ADEFA14Aeh1701029_defa14a.htm
2017-09-29DEFA14ADEFA14Aeh1700995_defa14a.htm
2017-09-27DEFA14ADEFA14Aeh1700987_defa14a.htm
2017-09-26DEFA14ADEFA14Aeh1700985_defa14a.htm
2017-09-22DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp3312492-defa14a.htm
2017-09-22DEFA14ADEFA14Aeh1700973_defa14a.htm
2017-09-15DEFA14ADEFA14Aeh1700965_defa14a.htm
2017-09-14DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp3308611-defa14a.htm
2017-09-14DEFA14ADEFA14Aeh1700964_defa14a.htm
2017-09-12DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp3305471-defa14a.htm
2017-09-12DEFA14ADEFA14Aeh1700955_defa14a.htm
2017-09-08DEFA14ADEFA14Aeh1700943_defa14a.htm
2017-09-07DEFA14ADEFA14Aeh1700940_defa14a.htm
2017-09-06DEFA14ADEFA14Aeh1700937_defa14a.htm
2017-08-24DEFA14ADEFA14Aeh1700912_defa14a.htm
2017-08-22DEFA14ADEFA14Aeh1700908_defa14a.htm
2017-08-21DEFA14ADEFA14Aeh1700904_defa14a.htm
2017-08-17DEFA14ADEFA14Aeh1700897_defa14a.htm
2017-08-11DEFA14ADEFA14Aeh1700880_defa14a.htm
2017-08-08DEFA14ADEFA14Aeh1700866_defa14afp.htm
2017-08-04DEFA14ADEFA14Aeh1700855_defa14afp.htm
2017-08-04DEFA14ADEFA14Aeh1700854_defa14a-pr.htm
2016-09-22DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp3118531-defa14a.htm
2015-09-24DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp_defa14a.htm
2014-09-25DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp_defa14a.htm
2013-09-26DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp_defa14a.htm
2012-09-27DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp_defa14a.htm
2011-09-27DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp_defa14a.htm
2010-09-24DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp_defa14a.htm
2009-09-30DEFA14ADEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALSadp_defa14a.htm
2008-10-01DEFA14AADDITIONAL MATERIALSdef14a.htm
2008-09-26DEFA14ADEFINITIVE ADDITIONAL MATERIALSadp_defa14a.htm

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