Atika Capital Management’s Vistra VST Stock Holding History

Atika Capital Management’s Portfolio VST Stock Details VST Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-123,000	Closed	-$24.1M	–	115
2025 Q3	$24.1M	Sell	123,000 -1,000	-0.8%	-$198K	1.94%	16
2025 Q2	$24M	Buy	124,000 +8,000	+7%	+$1.18M	2.4%	14
2025 Q1	$13.6M	Buy	116,000 +42,500	+58%	+$6.35M	1.92%	17
2024 Q4	$10.1M	Sell	73,500 -36,500	-33%	-$5.07M	1.08%	29
2024 Q3	$13M	Sell	110,000 -30,000	-21%	-$2.55M	1.34%	23
2024 Q2	$12M	Sell	140,000 -38,000	-21%	-$3.18M	1.18%	26
2024 Q1	$12.4M	Buy	+178,000	New	+$8.81M	1.22%	31

Other funds holding VST

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

LPC

Lone Pine Capital Greenwich, Connecticut $12.5B AUM 54.4% 1-Year Est. Return

Norges Bank Oslo, Norway $935B AUM

Atika Capital Management's VST Position: Q4 2025 in Review

Atika Capital Management sold out of Vistra (VST) in Q4 2025, closing a stake of 123,000 shares — an estimated $24.1M sold.

Atika Capital Management first reported a position in VST in Q1 2024 and held it in 7 quarters. The position peaked at $24.1M in Q3 2025. 1,336 funds tracked by Wall St. Rank hold VST as of Q4 2025.

Atika Capital Management reported no remaining Vistra position as of Q4 2025 after selling out during the quarter.
Atika Capital Management sold 123,000 Vistra shares in Q4 2025, an estimated $24.1M.
Atika Capital Management first reported a position in Vistra in Q1 2024 and held it in 7 quarters.
Atika Capital Management's Vistra position peaked at $24.1M in Q3 2025.
1,336 funds tracked by Wall St. Rank held Vistra as of Q4 2025.

Based on Atika Capital Management's 13F filing for Q4 2025, filed 13 Feb 2026.