Six Flags Entertainment Corporation
US ˙ NYSE

SecurityFUN / Six Flags Entertainment Corporation
InstitutionChescapmanager LLC
Latest Disclosed Ownership1,121,254 shares
Latest Disclosed Value $ 19,902,259
Chescapmanager LLC ownership in FUN / Six Flags Entertainment Corporation

On May 14, 2026 - Chescapmanager LLC filed a 13F-HR form disclosing ownership of 1,121,254 shares of Six Flags Entertainment Corporation (US:FUN) valued at $19,902,258 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,121,254 shares of Six Flags Entertainment Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $22,750,244 USD.

Chescapmanager LLC has a history of taking positions in derivatives of the underlying security (FUN) in the form of stock options. The firm currently holds call options representing 258,900 of underlying shares valued at $4,595,475 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

FUN / Six Flags Entertainment Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F SIX FLAGS ENTERTAINMENT COM 83001C108 1,121,254 0 0.00 19,902 15.71 1.7795
2026-02-13 2025-12-31 13F SIX FLAGS ENTERTAINMENT COM 83001C108 1,121,254 332,478 42.15 17,200 -4.02 1.4322
2025-11-14 2025-09-30 13F SIX FLAGS ENTERTAINMENT COM 83001C108 788,776 151,416 23.76 17,921 -7.60 1.7127
2025-08-14 2025-06-30 13F SIX FLAGS ENTERTAINMENT COM 83001C108 637,360 236,543 59.02 19,395 35.65 2.1432
2025-05-15 2025-03-31 13F SIX FLAGS ENTERTAINMENT COM 83001C108 400,817 40,000 11.09 14,297 -17.77 1.5348
2025-02-14 2024-12-31 13F SIX FLAGS ENTERTAINMENT COM 83001C108 360,817 0 0.00 17,388 19.55 1.8692
2024-11-14 2024-09-30 13F SIX FLAGS ENTERTAINMENT COM 83001C108 360,817 360,817 14,545 1.5399
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-14 2026-03-31 13F SIX FLAGS ENTERTAINMENT COM Call 258,900 0.00 4,595 15.71 n/a n/a n/a
2026-02-13 2025-12-31 13F SIX FLAGS ENTERTAINMENT COM Call 258,900 3,972 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.