Form 4 for WAY Waystar Holding Corp.

Accepted 2025-05-20 00:00:00 ET · period of report 2025-05-16 · accession 0001104659-25-051037 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
MI	2025-05-20	2025-05-16+	WAY	CPP Investment Board Private Holdings (4) Inc.	10%	S - Sale	$37.39	-4.73M	25.58M	-16%	-$176.78M

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2025-05-20	S	D	616,704	$37.39	24,964,225	I See footnote	—	—	(F3) This amount represents the $37.3937 sale price per share of Common Stock, par value $0.01 per share, in connection with the underwriters' exercise of their over-allotment option relating to the secondary offering, which closed on May 20, 2025. (F2) The securities reported herein are held directly by CPP Investment Board Private Holdings (4) Inc. ("Holdings (4)"), a wholly-owned subsidiary of Canada Pension Plan Investment Board ("CPPIB"). CPPIB is an indirect beneficial owner of such securities directly held by Holdings (4).
2	Common	Common Stock	2025-05-16	S	D	4,111,357	$37.39	25,580,929	I See footnote	—	—	(F1) This amount represents the $37.3937 sale price per share of Common Stock, par value $0.01 per share, in a secondary offering, which closed on May 16, 2025. (F2) The securities reported herein are held directly by CPP Investment Board Private Holdings (4) Inc. ("Holdings (4)"), a wholly-owned subsidiary of Canada Pension Plan Investment Board ("CPPIB"). CPPIB is an indirect beneficial owner of such securities directly held by Holdings (4).