13F Portfolios

DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP: SIX FLAGS ENTERTAINMENT CORP (FUN): Quarterly 13F Position History

As of Q1 2026, DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP reported 8,700,000 shares of SIX FLAGS ENTERTAINMENT CORP (FUN), worth $154.4M and representing 6.9% of its 13F equity book. Quarter-over-quarter share count change: + 3,500,000 (+67.3%) . The position first appeared in Q4 2024 and has been disclosed across 6 13F-HR filings in Pactolio's tracked window.

Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 6 quarter s

Quarter Shares QoQ Share Change Share Change (%) Market Value Weight Implied Price
Q1 2026 8,700,000 +3,500,000 +67.3% $154.4M 6.9% $17.8
Q4 2025 5,200,000 3,500,000 -40.2% $79.8M 3.2% $15.3
Q3 2025 8,700,000 0 $197.7M 6.7% $22.7
Q2 2025 8,700,000 +1,460,000 +20.2% $264.7M 8.4% $30.4
Q1 2025 7,240,000 +5,989,250 +478.9% $258.3M 8.6% $35.7
Q4 2024 1,250,750 $60.3M 2.3% $48.2

Methodology & FAQ

How This Position History Is Sourced

Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.

When did DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP first disclose a FUN position in 13F-HR filings?

DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP first reported SIX FLAGS ENTERTAINMENT CORP (FUN) on its 13F-HR filing for the period ending 2024-12-31 (Q4 2024). The position has appeared on 6 reported quarters within Pactolio's tracked window.

What was DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP's most recent quarter-over-quarter share-count change in FUN?

Between Q4 2025 and Q1 2026, DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP added 3,500,000 shares of FUN (+67.3%), bringing the total reported position to 8,700,000 shares at a market value of $154.4M.

Does the implied price-per-share represent DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP's cost basis in FUN?

No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.