Six Flags Entertainment Corporation
Six Flags Entertainment Corporation (FUN) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · FUN · as of Sep 30, 2025
Ownership Breakdown
334
Institutional Holders
▼ 11 vs Q2
$2.52B
Total Inst. Value
▼ $597.27M vs Q2
102.20M
Shares Outstanding
freeFloat 97.46%
111.01M
13F Shares Held
▲ 8.55M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
FUN largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. services-miscellaneous amusement & recreation | 15.05M | 14.95% | 14.95% | $341.97B | Nov 12, 2025 | ▲ 1.53M |
VANGUARD GROUP INC services-miscellaneous amusement & recreation | 10.07M | 10.00% | 10.00% | $228.74B | Nov 7, 2025 | ▲ 53.1K |
DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP services-miscellaneous amusement & recreation | 8.70M | 8.64% | 8.64% | $197.66B | Nov 14, 2025 | — held |
MORGAN STANLEY services-miscellaneous amusement & recreation | 5.84M | 5.81% | 5.81% | $132.78B | May 27, 2026 | ▲ 3.42M |
SACHEM HEAD CAPITAL MANAGEMENT LP services-miscellaneous amusement & recreation | 5.03M | 5.00% | 5.00% | $114.28B | Nov 14, 2025 | ▲ 150.0K |
DENDUR CAPITAL LP services-miscellaneous amusement & recreation | 4.66M | 4.63% | 4.63% | $105.95B | Nov 14, 2025 | ▲ 230.0K |
H PARTNERS MANAGEMENT, LLC services-miscellaneous amusement & recreation | 4.65M | 4.62% | 4.62% | $105.65B | Nov 14, 2025 | — held |
JANA PARTNERS MANAGEMENT, LP services-miscellaneous amusement & recreation | 4.05M | 4.02% | 4.02% | $92.01B | Nov 14, 2025 | NEW |
STATE STREET CORP services-miscellaneous amusement & recreation | 3.52M | 3.49% | 3.49% | $79.89B | Nov 14, 2025 | ▲ 50.9K |
EDGEPOINT INVESTMENT GROUP INC. services-miscellaneous amusement & recreation | 3.11M | 3.09% | 3.09% | $70.76B | Nov 14, 2025 | NEW |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
28
Increased
+16.31M shares11
New Positions
first time holders8
Decreased
−4.47M shares0
Sold Out
fully exitedNet shares change (top 50)
+11.84M
+16.31M / −4.47M
Net new holders
+31
11 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
FUN insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
4
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Spiegel Marilyn G director | May 21, 2026 | Purchase | 2,500 | $19.10 | $47.8K | 15.2K | Form 4 ↗ |
Spiegel Marilyn G director | May 12, 2026 | Purchase | 2,500 | $19.13 | $47.8K | 12.7K | Form 4 ↗ |
HADDRILL RICHARD M Executive Chair | May 12, 2026 | Purchase | 10,000 | $19.08 | $190.8K | 230.1K | Form 4 ↗ |
HADDRILL RICHARD M Executive Chair | Apr 16, 2026 | Award | 217,797 | — | — | 220.1K | Form 4 ↗ |
Witherow Brian C Chief Financial Officer | Feb 23, 2026 | Tax Withhold | 16,469 | $18.24 | $300.4K | 297.8K | Form 4 ↗ |
Tastepe Tayfun Chief Digital & Tech Officer | Feb 23, 2026 | Tax Withhold | 3,639 | $18.24 | $66.4K | 29.7K | Form 4 ↗ |
Hoffman David R. Chief Accounting Officer | Feb 23, 2026 | Tax Withhold | 4,788 | $18.24 | $87.3K | 86.2K | Form 4 ↗ |
Nurse Brian Chief Legal Officer | Feb 23, 2026 | Tax Withhold | 11,246 | $18.24 | $205.1K | 79.1K | Form 4 ↗ |
FISHER TIM Chief Operating Officer | Feb 23, 2026 | Tax Withhold | 19,092 | $18.24 | $348.2K | 222.2K | Form 4 ↗ |
Dieckmann Christian Chief Commercial Officer | Feb 23, 2026 | Tax Withhold | 3,887 | $18.24 | $70.9K | 37.4K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Six Flags Entertainment Corporation (FUN) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 2.54%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Six Flags Entertainment Corporation is BLACKROCK, INC., holding approximately 15.05 million shares — equal to 14.95% of outstanding shares — as of September 30, 2025.
A total of 334 institutional investors currently hold FUN stock, with a combined institutional value of approximately $2.52 billion as of the most recent 13F filing period.
Frequently asked questions
FUN ownershipSix Flags Entertainment Corporation (FUN) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is BLACKROCK, INC. with a 14.95% stake. Company insiders hold 2.54%. Data sourced from SEC Form 13F as of September 30, 2025.