VISTRA CORP

Ticker: VST CUSIP: 92840M102 Class: EQTY

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

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

Q4 2025

Shares 533,945 Value ($000) $86,141 Avg Close $181.92 Range $158.43 - $216.80

Q3 2025

Shares 492,560 Value ($000) $96,502 Avg Close $197.68 Range $177.99 - $219.51

Q2 2025

Shares 519,286 Value ($000) $100,643 Avg Close $147.45 Range $90.17 - $197.71

Q1 2025

Shares 332,342 Value ($000) $39,030 Avg Close $148.62 Range $103.77 - $198.75

Q4 2024

Shares 462,164 Value ($000) $63,719 Avg Close $137.88 Range $110.71 - $167.48

Q3 2024

Shares 327,122 Value ($000) $38,777 Avg Close $84.10 Range $65.87 - $121.15

Q2 2024

Shares 277,289 Value ($000) $23,841 Avg Close $82.71 Range $63.49 - $105.96

Q1 2019

Shares 13,700 Value ($000) $357 Avg Close $21.60 Range $18.84 - $23.10

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	533,945	$86,141	$181.92	$158.43 - $216.80
Q3 2025	492,560	$96,502	$197.68	$177.99 - $219.51
Q2 2025	519,286	$100,643	$147.45	$90.17 - $197.71
Q1 2025	332,342	$39,030	$148.62	$103.77 - $198.75
Q4 2024	462,164	$63,719	$137.88	$110.71 - $167.48
Q3 2024	327,122	$38,777	$84.10	$65.87 - $121.15
Q2 2024	277,289	$23,841	$82.71	$63.49 - $105.96
Q1 2019	13,700	$357	$21.60	$18.84 - $23.10