2019 Performance Review

Automatic Data Processing ("ADP") ADP Pershing Square remained actively engaged with ADP following the 2017 proxy contest, holding ADP accountable for achieving its potential ADP embraced a comprehensive Business Transformation ✓ Accelerated next-generation platforms Broadened and accelerated the company's Service Alignment Initiative Executed an early retirement program ✓ Implemented a broad-based workforce optimization effort focused on spans of control and management layers Launched an accelerated procurement transformation effort In response to these and other transformation initiatives ADP realized accelerated margin expansion and earnings growth in 2019 Valuation at exit more accurately priced ADP's prospects for success PS VI, L.P., our co-investment vehicle in ADP, realized a net return1 of 49.7% since inception, and a compound annual net return of 22.1% over a two year period Pershing Square exited our investment as prospective returns became more modest as the market more accurately priced ADP's prospects for continued success (1) Net of all fees and expenses 55

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