WAYSTAR HLDG CORP

Ticker: WAY CUSIP: 946784105 Class: COM

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

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

Q4 2025

Shares 5,282,220 Value ($000) $172,993 Avg Close $35.62 Range $29.40 - $40.35

Q3 2025

Shares 5,263,187 Value ($000) $199,580 Avg Close $37.06 Range $33.42 - $41.47

Q2 2025

Shares 5,239,365 Value ($000) $214,133 Avg Close $38.52 Range $32.71 - $42.55

Q1 2025

Shares 4,227,425 Value ($000) $157,937 Avg Close $39.58 Range $34.97 - $48.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,282,220	$172,993	$35.62	$29.40 - $40.35
Q3 2025	5,263,187	$199,580	$37.06	$33.42 - $41.47
Q2 2025	5,239,365	$214,133	$38.52	$32.71 - $42.55
Q1 2025	4,227,425	$157,937	$39.58	$34.97 - $48.11