Latest Period
Q1 2026
Security Snapshot
Six Flags Entertainment Corporation/NEW - Common Stock (FUN) Institutional Ownership
CUSIP: 83001C108
13F Institutional Holders and Ownership History from Q2 2024 to Q1 2026
Institutions Reporting
294
Shares (Excl. Options)
114,047,688
Price
$17.75
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- Security type / class
- Equity / Common Stock
- Symbol
- FUN on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 114,047,688
- Total 13F value
- $2,023,755,811
- Portfolio coverage rank
- 0%
- Share change
- +4,245,126
- Value change
- +$82,606,658
- Number of holders
- 294
- Shares outstanding
- 102,352,941
- SEC-reported price per share
- $19.32
- Insider filing price
- $19.32
Latest holder snapshot
5 signals
Issuer context
Who this page is about.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- FUN - Six Flags Entertainment Corporation/NEW - Common Stock is tracked under CUSIP 83001C108.
- 294 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 303 to 294 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $1,683,119,723 to $2,023,755,811.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 294 institutions filings for Q1 2026.
Security key
83001C108
Latest holder period
Q1 2026
13F holders
294
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
FUN full holder history
Six Flags Entertainment Corporation/NEW SEC filings
Six Flags Entertainment Corporation/NEW company facts
Six Flags Entertainment Corporation/NEW insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 83001C108:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
FUN
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP | 8.5% | +68% | $152,946,000 | +$61,530,000 | 8,700,000 | +67% | Darlington Partners Capital Management, LP | 31 Mar 2026 |
| MORGAN STANLEY | 5.4% | -41% | $96,937,931 | -$64,778,292 | 5,514,103 | -40% | Morgan Stanley | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.1% | $92,564,724 | 5,214,914 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| JAFFER REHAN | 5% | $176,150,000 | 5,000,000 | Rehan Jaffer | 03 Apr 2025 |
As of 31 Mar 2026, 294 institutional investors reported holding 114,047,688 shares of Six Flags Entertainment Corporation/NEW - Common Stock (FUN). This represents 111% of the company’s total 102,352,941 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
92%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 15% | 15,161,824 | -1.4% | 0% | $269,122,383 |
| UBS Group AG | 8.9% | 9,114,678 | +73% | 0.03% | $161,785,535 |
| DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP | 8.5% | 8,700,000 | +67% | 6.9% | $154,425,000 |
| MORGAN STANLEY | 5.8% | 5,924,427 | -37% | 0.01% | $105,158,595 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5% | 5,140,845 | 0% | 0% | $91,249,999 |
| Sachem Head Capital Management LP | 4.9% | 5,030,000 | 0% | 2.2% | $89,282,500 |
| DENDUR CAPITAL LP | 4.8% | 4,953,500 | 0% | 6.5% | $87,924,625 |
| H PARTNERS MANAGEMENT, LLC | 4.5% | 4,650,000 | 0% | 54% | $82,537,500 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.1% | 4,207,390 | 0% | 0% | $74,681,173 |
| JANA Partners Management, LP | 4% | 4,116,099 | 0% | 4.5% | $73,060,757 |
| STATE STREET CORP | 3.6% | 3,682,354 | +1.9% | 0% | $65,361,784 |
| AMERIPRISE FINANCIAL INC | 3.3% | 3,401,323 | +127% | 0.01% | $60,373,490 |
| GOLDMAN SACHS GROUP INC | 2.9% | 2,980,235 | +51% | 0.01% | $52,899,171 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.3% | 2,359,585 | +2.1% | 0% | $41,891,541 |
| GLENVIEW CAPITAL MANAGEMENT, LLC | 2.2% | 2,223,149 | +98% | 1.1% | $39,460,895 |
| CITADEL ADVISORS LLC | 1.7% | 1,741,478 | 0.02% | $30,911,235 | |
| MARSHALL WACE, LLP | 1.5% | 1,522,292 | +482% | 0.03% | $27,020,683 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.4% | 1,478,654 | +29% | 0% | $26,246,114 |
| Invenomic Capital Management LP | 1.4% | 1,426,167 | -0.73% | 1.2% | $25,314,464 |
| HAWK RIDGE CAPITAL MANAGEMENT LP | 1.3% | 1,368,578 | -11% | 0.88% | $24,292,260 |
| Chescapmanager LLC | 1.1% | 1,121,254 | 0% | 3.2% | $19,902,259 |
| ING GROEP NV | 1% | 1,046,000 | 0% | 0.11% | $18,566,500 |
| NORTHERN TRUST CORP | 1% | 1,024,755 | +9.1% | 0% | $18,189,403 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1% | 1,019,700 | -57% | 0.03% | $18,099,675 |
| RUSH ISLAND MANAGEMENT, LP | 0.91% | 927,829 | -21% | 1.1% | $16,468,965 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
8
Latest
Q1 2026
Rows shown
1-8 of 8
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 114,047,688 | $2,023,755,811 | +$82,606,658 | $17.75 | 294 |
| 2025 Q4 | 109,715,390 | $1,683,119,723 | -$151,273,371 | $15.34 | 303 |
| 2025 Q3 | 111,006,040 | $2,522,049,812 | +$121,463,629 | $22.72 | 305 |
| 2025 Q2 | 102,440,514 | $3,118,754,294 | +$78,872,281 | $30.43 | 325 |
| 2025 Q1 | 98,191,221 | $3,503,035,845 | +$186,591,547 | $35.67 | 325 |
| 2024 Q4 | 91,672,324 | $4,417,067,220 | -$51,427,145 | $48.19 | 350 |
| 2024 Q3 | 93,103,150 | $3,753,060,573 | +$3,187,517,925 | $40.31 | 322 |
| 2024 Q2 | 84,877 | $4,610,697 | +$4,610,697 | $54.35 | 12 |