A Form 4 filed on August 24, 2026 disclosed that David Kwon, a Corporate Vice President at Automatic Data Processing Inc, exercised a stock option and sold shares of common stock on August 20, 2026, pursuant to a pre-established Rule 10b5-1 trading plan.

Key Highlights

  • Option exercise: David Kwon acquired 967 shares of common stock via a stock option exercise (transaction code M) at a price of $169.84 per share on August 20, 2026.
  • Shares sold: Kwon disposed of 798 shares of common stock (transaction code S) at a price of $280 per share on August 20, 2026.
  • Remaining ownership: Following the reported transactions, Kwon directly held 13,192.739 shares of common stock.
  • Option fully exercised: The stock option with an exercise price of $169.84, exercisable from September 1, 2020 and expiring August 31, 2029, shows 0.0000 derivative securities remaining after the transaction.
  • 10b5-1 plan: According to the filing, the transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person in September 2025.

Kwon's Option Exercise and Share Disposal at Automatic Data Processing

According to the filing, David Kwon, identified as a Corporate Vice President of Automatic Data Processing Inc (NASDAQ:ADP), reported two transactions in the company's common stock, both dated August 20, 2026. The first was an exercise of a stock option, by which Kwon acquired 967 shares at the option's exercise price of $169.84 per share. Prior to this acquisition, his beneficial ownership was not separately stated, but following the exercise his total directly held shares stood at 13,990.739.

The filing further disclosed that Kwon disposed of 798 shares on the same date at a price of $280 per share. After that sale, his directly held beneficial ownership in Automatic Data Processing common stock totaled 13,192.739 shares. The stock option exercised carried an expiration date of August 31, 2029 and covered 967 shares of underlying common stock; following the exercise, the filing records 0.0000 derivative securities of that option remaining.

The filing states that both transactions were made pursuant to a Rule 10b5-1 trading plan that Kwon adopted in September 2025. The Form 4 was signed by Michael A. Bonarti under a power of attorney on file, and was filed on August 24, 2026. The filing indicates that the box confirming a Rule 10b5-1(c) compliant plan was checked.

What Was Disclosed

Kwon's Form 4 reported an option exercise of 967 shares at $169.84 and a sale of 798 shares at $280, both on August 20, 2026, leaving him with 13,192.739 directly held shares, all conducted under a Rule 10b5-1 plan adopted in September 2025.