SIX FLAGS ENTERTAINMENT CORP FUN
COM · Common Stock · CUSIP 83001C108 · ISIN US83001C1080
American amusement park company, formed by the merger of Cedar Fair and Six Flags
- SectorConsumer discretionary
- IndustryServices-Amusement & Recreation Services
- HeadquartersCharlotte, NC
- Founded2024
- Websitesixflags.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($462.6k this quarter). Holder counts are more reliable. Shares outstanding: 102.2m as of 2026-05-01, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $17.74. Options: 13 managers hold calls ($37.5m notional), 13 hold puts ($36.8m).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q2 2024 | 12 |
| Q3 2024 | 326 |
| Q4 2024 | 352 |
| Q1 2025 | 329 |
| Q2 2025 | 330 |
| Q3 2025 | 306 |
| Q4 2025 | 304 |
| Q1 2026 | 294 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 312 | 4 |
| Q4 2024 | 147 | 152 |
| Q1 2025 | 136 | 177 |
| Q2 2025 | 159 | 147 |
| Q3 2025 | 138 | 164 |
| Q4 2025 | 132 | 157 |
| Q1 2026 | 121 | 137 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $39.6m | $16.7m | 0.42 |
| Q3 2025 | $88.0m | $92.5m | 1.05 |
| Q4 2025 | $61.8m | $33.1m | 0.53 |
| Q1 2026 | $37.5m | $36.8m | 0.98 |
Biggest buyers
| UBS Group AG | Added | +3.8m |
| DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP | Added | +3.5m |
| AMERIPRISE FINANCIAL INC | Added | +1.9m |
| CITADEL ADVISORS LLC | New | +1.7m |
| MARSHALL WACE, LLP | Added | +1.3m |
| GLENVIEW CAPITAL MANAGEMENT, LLC | Added | +1.1m |
| GOLDMAN SACHS GROUP INC | Added | +1.0m |
| Balyasny Asset Management L.P. | New | +849.4k |
| Kanen Wealth Management LLC | New | +848.6k |
| Long Pond Capital, LP | New | +750.4k |
Biggest sellers
| MORGAN STANLEY | Reduced | -3.5m |
| BANK OF AMERICA CORP /DE/ | Reduced | -2.1m |
| Nearwater Capital Markets, Ltd | Reduced | -1.6m |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | Reduced | -1.4m |
| Land & Buildings Investment Management, LLC | Reduced | -1.1m |
| Davidson Kempner Capital Management LP | Reduced | -803.6k |
| Public Sector Pension Investment Board | Reduced | -453.0k |
| SOROS FUND MANAGEMENT LLC | Sold out | -440.0k |
| Verition Fund Management LLC | Sold out | -384.4k |
| Black Diamond Capital Management I, LLLP | Sold out | -329.9k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $11.0m621.8k shares |
| Centiva Capital, LP | Added | $7.0m396.5k shares |
| JANE STREET GROUP, LLC | Added | $4.7m265.4k shares |
| Chescapmanager LLC | Unchanged | $4.6m258.9k shares |
| IMC-Chicago, LLC | Reduced | $2.6m144.4k shares |
| Point72 Asset Management, L.P. | Added | $2.3m131.8k shares |
| GROUP ONE TRADING LLC | Reduced | $1.9m107.7k shares |
| CITADEL ADVISORS LLC | Reduced | $1.3m75.2k shares |
| SIMPLEX TRADING, LLC | New | $646.1k36.4k shares |
| Caption Management, LLC | Reduced | $426.0k24.0k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $10.0m562.9k shares |
| CITADEL ADVISORS LLC | Reduced | $6.7m379.2k shares |
| Point72 Asset Management, L.P. | Reduced | $4.6m257.5k shares |
| Centiva Capital, LP | Added | $4.1m230.9k shares |
| SIMPLEX TRADING, LLC | New | $3.8m216.7k shares |
| WOLVERINE ASSET MANAGEMENT LLC | Unchanged | $2.5m142.4k shares |
| IMC-Chicago, LLC | Reduced | $1.3m73.3k shares |
| Crawford Fund Management, LLC | Reduced | $1.3m72.0k shares |
| Caption Management, LLC | Unchanged | $832.5k46.9k shares |
| GROUP ONE TRADING LLC | Reduced | $738.4k41.6k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2026-07-30 | 14.4% |
| DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP 13G · institution -1.0 pts · filed 2026-08-14 | 7.5% |
| MORGAN STANLEY 13G · institution -3.7 pts · filed 2026-05-12 | 5.4% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q1 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 1 | $513.0k | — |
| Q1 2025 | 0 | — | 1 | $43.9k | — |
| Q2 2025 | 0 | — | 1 | $224.6k | — |
| Q3 2025 | 1 | $248.1k | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
None reported in Q1 2026.
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 15.2m $269.1m | Reduced -217.1k |
| UBS Group AG 0.03% of their portfolio | 9.1m $161.8m | Added +3.8m |
| DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP 6.94% of their portfolio | 8.7m $154.4m | Added +3.5m |
| MORGAN STANLEY 0.01% of their portfolio | 5.9m $105.2m | Reduced -3.5m |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 5.1m $91.2m | First filing |
| Sachem Head Capital Management LP 2.15% of their portfolio | 5.0m $89.3m | Unchanged |
| DENDUR CAPITAL LP 6.47% of their portfolio | 5.0m $87.9m | Unchanged |
| H PARTNERS MANAGEMENT, LLC 53.68% of their portfolio | 4.7m $82.5m | Unchanged |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 4.2m $74.7m | First filing |
| JANA Partners Management, LP 4.38% of their portfolio | 4.1m $73.1m | Unchanged |
| STATE STREET CORP 0.00% of their portfolio | 3.7m $65.4m | Added +68.3k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 3.4m $60.4m | Added +1.9m |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 3.0m $52.9m | Added +1.0m |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 2.4m $41.9m | Added +48.1k |
| GLENVIEW CAPITAL MANAGEMENT, LLC 1.07% of their portfolio | 2.2m $39.5m | Added +1.1m |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 1.7m $30.9m | New |
| MARSHALL WACE, LLP 0.03% of their portfolio | 1.5m $27.0m | Added +1.3m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 1.5m $26.2m | Added +329.2k |
| Invenomic Capital Management LP 1.17% of their portfolio | 1.4m $25.3m | Reduced -10.4k |
| HAWK RIDGE CAPITAL MANAGEMENT LP 0.88% of their portfolio | 1.4m $24.3m | Reduced -171.1k |
| Chescapmanager LLC 3.18% of their portfolio | 1.1m $19.9m | Unchanged |
| ING GROEP NV 0.11% of their portfolio | 1.0m $18.6m | Unchanged |
| NORTHERN TRUST CORP 0.00% of their portfolio | 1.0m $18.2m | Added +85.4k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.03% of their portfolio | 1.0m $18.1m | Reduced -1.4m |
| RUSH ISLAND MANAGEMENT, LP 1.10% of their portfolio | 927.8k $16.5m | Reduced -253.4k |
| Balyasny Asset Management L.P. 0.03% of their portfolio | 849.4k $15.1m | New |
| Kanen Wealth Management LLC 5.42% of their portfolio | 848.6k $15.1m | New |
| Long Pond Capital, LP 1.36% of their portfolio | 750.4k $13.3m | New |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 684.3k $12.1m | First filing |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 650.0k $11.5m | Reduced -2.1m |
| Land & Buildings Investment Management, LLC 1.93% of their portfolio | 642.3k $11.4m | Reduced -1.1m |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 635.8k $10.9m | Reduced -38.9k |
| BARCLAYS PLC 0.00% of their portfolio | 618.3k $11.0m | Reduced -217.7k |
| Invesco Ltd. 0.00% of their portfolio | 567.1k $10.1m | Added +105.7k |
| Clearline Capital LP 0.77% of their portfolio | 561.0k $10.0m | Reduced -4.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 554.0k $9.8m | Reduced -28.4k |
| Channing Capital Management, LLC 0.23% of their portfolio | 510.9k $9.1m | Added +53.6k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 495.3k $8.8m | Added +10.8k |
| Man Group plc 0.02% of their portfolio | 425.9k $7.6m | New |
| FIL Ltd 0.01% of their portfolio | 425.0k $7.5m | Unchanged |
| Thrivent Financial for Lutherans 0.01% of their portfolio | 394.5k $7.0m | Added +95.8k |
| Davidson Kempner Capital Management LP 0.12% of their portfolio | 374.4k $6.6m | Reduced -803.6k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 363.1k $6.4m | Reduced -453.0k |
| THOMPSON SIEGEL & WALMSLEY LLC 0.11% of their portfolio | 349.4k $6.2m | Reduced -19.6k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 278.0k $4.9m | Added +1.2k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 274.5k $4.9m | Added +17.2k |
| SUSQUEHANNA ADVISORS GROUP, INC. 0.18% of their portfolio | 218.7k $3.9m | Reduced -43.6k |
| Legal & General Group Plc 0.00% of their portfolio | 218.5k $3.9m | Reduced -25.4k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 217.1k $3.9m | New |
| Luxor Capital Group, LP 0.60% of their portfolio | 212.9k $3.8m | Reduced -28.0k |
| Nuveen, LLC 0.00% of their portfolio | 206.9k $3.7m | Reduced -1.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 206.3k $3.7m | Added +35.8k |
| Darwins River Capital, LP 1.95% of their portfolio | 205.5k $3.6m | New |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 0.22% of their portfolio | 196.9k $3.5m | New |
| WINTON GROUP Ltd 0.12% of their portfolio | 196.8k $3.5m | New |
| Nearwater Capital Markets, Ltd 0.08% of their portfolio | 194.0k $3.4m | Reduced -1.6m |
| Swiss National Bank 0.00% of their portfolio | 189.7k $3.4m | Unchanged |
| CastleKnight Management LP 0.16% of their portfolio | 188.1k $3.3m | New |
| 13D Management LLC 5.13% of their portfolio | 186.5k $3.3m | Unchanged |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 162.1k $2.9m | Added +135.8k |
| Creek Drive Management Group LLC 1.73% of their portfolio | 155.0k $2.8m | Reduced -183.0k |
| PINNACLE ASSOCIATES LTD 0.03% of their portfolio | 146.3k $2.6m | Reduced -5.9k |
| Quinn Opportunity Partners LLC 0.14% of their portfolio | 144.8k $2.6m | Unchanged |
| Tejara Capital Ltd 0.83% of their portfolio | 141.3k $2.5m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 137.9k $2.4m | Added +13.2k |
| Walleye Capital LLC 0.01% of their portfolio | 132.5k $2.4m | Added +15.6k |
| Silver Point Capital L.P. 0.18% of their portfolio | 130.0k $2.3m | Unchanged |
| Knights of Columbus Asset Advisors LLC 0.13% of their portfolio | 127.5k $2.3m | Reduced -783 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 118.8k $2.1m | Added +26.7k |
| LEE DANNER & BASS INC 0.13% of their portfolio | 117.7k $2.1m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 117.6k $2.1m | Reduced -79.3k |
| Saba Capital Management, L.P. 0.06% of their portfolio | 112.5k $2.0m | Added +12.5k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.07% of their portfolio | 110.3k $2.0m | Reduced -10.6k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 104.6k $1.9m | Added +9.2k |
| Bridgewater Associates, LP 0.01% of their portfolio | 103.0k $1.8m | Reduced -77.3k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 102.0k $1.6m | Added +1.2k |
| Quantbot Technologies LP 0.07% of their portfolio | 100.4k $1.8m | Added +66.2k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 91.3k $1.6m | Added +17.9k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 90.7k $1.6m | Added +8.9k |
| Havemeyer Place LP 0.18% of their portfolio | 89.9k $1.6m | Added +5.8k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 86.3k $1.5m | Added +10.3k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 81.9k $1.5m | First filing |
| Barnett & Company, Inc. 1.11% of their portfolio | 80.5k $1.4m | Added +53.9k |
| Manatuck Hill Partners, LLC 0.47% of their portfolio | 80.0k $1.4m | New |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 79.5k $1.4m | New |
| Savoir Faire Capital Management, L.P. 0.85% of their portfolio | 79.3k $1.4m | Reduced -37.5k |
| ExodusPoint Capital Management, LP 0.01% of their portfolio | 75.0k $1.3m | New |
| SEI INVESTMENTS CO 0.00% of their portfolio | 74.3k $1.3m | Reduced -224 |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 73.2k $1.3m | Reduced -40.2k |
| BROWN ADVISORY INC 0.00% of their portfolio | 70.5k $1.3m | Reduced -1.1k |
| HighTower Advisors, LLC 0.00% of their portfolio | 68.5k $1.2m | Added +9.6k |
| CITIGROUP INC 0.00% of their portfolio | 66.5k $1.2m | Reduced -230.9k |
| Orvieto Partners, L.P. 0.99% of their portfolio | 65.0k $1.2m | New |
| Oakum Bay Capital LLC 0.59% of their portfolio | 61.9k $1.1m | Reduced -108.8k |
| NEUBERGER BERMAN GROUP LLC 0.00% of their portfolio | 59.4k $1.1m | Reduced -15.7k |
| State of Alaska, Department of Revenue 0.01% of their portfolio | 56.2k $997.0k | Reduced -1.4k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 53.0k $941.0k | Reduced -3.3k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 52.9k $938.2k | Reduced -4.6k |
| KEYBANK NATIONAL ASSOCIATION/OH 0.00% of their portfolio | 52.2k $927.4k | Reduced -5.6k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 46.9k $832.8k | Added +17.8k |