AUTOMATIC DATA PROCESSING IN

Ticker: ADP CUSIP: 053015103 Class: COM

Senator Investment Group LP's Holding History (CIK: 0001443689)

Note: Option positions (PUT/CALL) are excluded.

Q4 2018

Shares 1,000,000 Value ($000) $131,120 Avg Close $121.16 Range $104.68 - $131.62

Q3 2018

Shares 1,300,000 Value ($000) $195,858 Avg Close $120.81 Range $110.27 - $129.74

Q2 2018

Shares 1,300,000 Value ($000) $174,382 Avg Close $107.77 Range $94.91 - $120.77

Q3 2017

Shares 3,500,000 Value ($000) $382,620 Avg Close $89.59 Range $83.96 - $101.73

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	1,000,000	$131,120	$121.16	$104.68 - $131.62
Q3 2018	1,300,000	$195,858	$120.81	$110.27 - $129.74
Q2 2018	1,300,000	$174,382	$107.77	$94.91 - $120.77
Q3 2017	3,500,000	$382,620	$89.59	$83.96 - $101.73