WAYSTAR HLDG CORP

Ticker: WAY CUSIP: 946784105 Class: COM

ADAGE CAPITAL PARTNERS GP, L.L.C.'s Holding History (CIK: 0001165408)

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

Q4 2025

Shares 1,105,454 Value ($000) $36,204 Avg Close $35.62 Range $29.40 - $40.35

Q3 2025

Shares 684,234 Value ($000) $25,946 Avg Close $37.06 Range $33.42 - $41.47

Q2 2025

Shares 104,000 Value ($000) $4,250 Avg Close $38.52 Range $32.71 - $42.55

Q1 2025

Shares 232,000 Value ($000) $8,668 Avg Close $39.58 Range $34.97 - $48.11

Q4 2024

Shares 581,044 Value ($000) $21,324 Avg Close $30.74 Range $26.56 - $38.34

Q3 2024

Shares 607,995 Value ($000) $16,957 Avg Close $24.66 Range $20.26 - $28.57

Q2 2024

Shares 600,000 Value ($000) $12,900 Avg Close $21.67 Range $20.50 - $23.09

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,105,454	$36,204	$35.62	$29.40 - $40.35
Q3 2025	684,234	$25,946	$37.06	$33.42 - $41.47
Q2 2025	104,000	$4,250	$38.52	$32.71 - $42.55
Q1 2025	232,000	$8,668	$39.58	$34.97 - $48.11
Q4 2024	581,044	$21,324	$30.74	$26.56 - $38.34
Q3 2024	607,995	$16,957	$24.66	$20.26 - $28.57
Q2 2024	600,000	$12,900	$21.67	$20.50 - $23.09