Six Flags Entertainment Corporation/new Schedule 13G passive stakes

Darlington Partners Capital Management, LP and affiliated entities have reported beneficial ownership of 7.5% of Six Flags Entertainment Corporation/NEW's common stock as of June 30, 2026.

Morgan Stanley and its subsidiary, Morgan Stanley Capital Services LLC, have filed a Schedule 13G detailing their beneficial ownership of Six Flags Entertainment Corporation/NEW common stock.

Vanguard Portfolio Management has reported beneficial ownership of 5,214,914 shares, representing 5.11% of the outstanding common stock of Six Flags Entertainment Corp.

The Vanguard Group reports 0% beneficial ownership in Six Flags Entertainment Corp following an internal realignment, shifting reporting to subsidiaries.

Darlington Partners Capital Management and related entities have disclosed a 5.1% beneficial ownership stake in Six Flags Entertainment Corporation.

Morgan Stanley and its subsidiary, Morgan Stanley Capital Services LLC, have reported a combined beneficial ownership of 9.1% of Six Flags Entertainment Corporation/NEW's common stock.

Morgan Stanley and its subsidiary, Morgan Stanley Capital Services LLC, have reported beneficial ownership of 5.6% of Six Flags Entertainment Corporation's common stock.

Darlington Partners Capital Management and related entities have disclosed an 8.6% beneficial ownership stake in Six Flags Entertainment Corporation, holding 8.7 million shares.

Darlington Partners Capital Management, LP and its affiliates have disclosed a 7.2% beneficial ownership stake in Six Flags Entertainment Corporation, holding 7,240,000 shares of common stock.

Darlington Partners Capital Management and its affiliates have reported a 5.9% beneficial ownership stake in Six Flags Entertainment Corporation, totaling 5,914,751 shares.

The Vanguard Group has filed an amended Schedule 13G, revealing its beneficial ownership of 10.03% of Six Flags Entertainment Corp's common stock as of December 31, 2024.