Six Flags Entertainment Corporation (FUN) Ownership

NYSE: FUNTop holders, insider trades and short interest.

FUN ownership summary

as of October 18, 2026
Institutions
107.6%
of shares outstanding
Insiders
2.84%
of shares outstanding
Shares outstanding
102.3M
Float
86.7M
shares available to trade
Short interest
27.15%
23.0M shares short
Days to cover
10.04
short interest up 17.5% vs prior month
  • Institutions 107.63%
  • Insiders 2.84%

FUN top institutional holders

20 largest
Six Flags Entertainment Corporation top institutional holders
#Holder% of sharesSharesValueChangeReported
1BlackRock Inc15.56%15.9M$129.1M+756,360 (+5.0%)June 30, 2026
2Darlington Partners Capital Management, LP7.53%7.7M$62.4M−1.0M (−11.5%)June 30, 2026
3Morgan Stanley - Brokerage Accounts5.92%6.1M$49.2M+136,436 (+2.3%)June 30, 2026
4Vanguard Portfolio Management, LLC5.31%5.4M$44.0M+288,971 (+5.6%)June 30, 2026
5Sachem Head Capital Management LP4.92%5.0M$40.8M—June 30, 2026
6DENDUR CAPITAL LP4.84%5.0M$40.2M—June 30, 2026
7H PARTNERS MANAGEMENT, LLC4.79%4.9M$39.7M+250,000 (+5.4%)June 30, 2026
8Vanguard Capital Management, LLC4.17%4.3M$34.6M+60,510 (+1.4%)June 30, 2026
9Jana Partners Management LP4.02%4.1M$33.4M—June 30, 2026
10UBS Group AG3.79%3.9M$31.5M−5.2M (−57.4%)June 30, 2026
11State Street Corp3.79%3.9M$31.4M+193,883 (+5.3%)June 30, 2026
12Hawk Ridge Management LLC2.75%2.8M$22.8M+1.4M (+105.4%)June 30, 2026
13HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND2.55%2.6M$21.2M+1.6M (+156.3%)June 30, 2026
14Geode Capital Management, LLC2.45%2.5M$20.3M+142,153 (+6.0%)June 30, 2026
15The Goldman Sachs Group Inc2.29%2.3M$19.0M−640,144 (−21.5%)June 30, 2026
16Marshall Wace Asset Management Ltd1.98%2.0M$16.4M+501,302 (+32.9%)June 30, 2026
17Glenview Capital Management LLC1.97%2.0M$16.4M−205,328 (−9.2%)June 30, 2026
18Ameriprise Financial Inc1.61%1.6M$13.4M−1.8M (−51.6%)June 30, 2026
19Charles Schwab Investment Management Inc1.53%1.6M$12.7M+83,093 (+5.6%)June 30, 2026
20NORGES BANK1.16%1.2M$9.6M+765,887 (+182.6%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 6.2M shares and 5 cut 8.8M.

FUN top mutual fund and ETF holders

20 largest
Six Flags Entertainment Corporation top fund holders
#Holder% of sharesSharesValueChangeReported
1iShares Core S&P Small-Cap ETF5.95%6.1M$49.4M+1,572 (+0.0%)September 30, 2026
2Vanguard MStar Total Stk Mkt Idx Invest2.85%2.9M$23.7M−14,677 (−0.5%)August 31, 2026
3iShares Russell 2000 ETF2.44%2.5M$20.2M−28,800 (−1.1%)September 30, 2026
4Vanguard Small Cap Index1.91%2.0M$15.9M−156,993 (−7.4%)September 30, 2026
5Vanguard MStar Small Cap Growth Indx Inv1.07%1.1M$8.8M−121,519 (−10.0%)September 30, 2026
6Fidelity Small Cap Index1.04%1.1M$8.6M+8,825 (+0.8%)July 31, 2026
7State Street SPDR Port S&P 600 Sm CpETF0.90%923K$7.5M—September 30, 2026
8iShares Russell 2000 Growth ETF0.89%907K$7.4M−1,148 (−0.1%)September 30, 2026
9Vanguard Tax-Managed Small Cap Adm0.58%595K$4.8M—September 30, 2026
10Schwab Fundamental U.S. Small CompanyETF0.56%572K$4.6M+812 (+0.1%)September 30, 2026
11Vanguard Russell 2000 ETF0.55%563K$4.6M+5,493 (+1.0%)September 30, 2026
12Schwab US Small-Cap ETF™0.53%542K$4.4M+360 (+0.1%)September 30, 2026
13Fidelity Global Small Cap Opps F0.49%500K$4.1M+100,000 (+25.0%)June 30, 2026
14iShares S&P Small-Cap 600 Value ETF0.47%476K$3.9M—September 30, 2026
15Fidelity Extended Market Index0.46%466K$3.8M−2,507 (−0.5%)August 31, 2026
16iShares S&P Small-Cap 600 Growth ETF0.42%427K$3.5M—September 30, 2026
17Vanguard S&P Small-Cap 600 ETF0.36%364K$2.9M−4,865 (−1.3%)September 30, 2026
18Vanguard Consumer Discretionary ETF0.30%308K$2.5M−1,222 (−0.4%)September 30, 2026
19Dimensional US Small Cap ETF0.30%304K$2.5M—September 30, 2026
20State Street® SPDR® S&P 600™ Sm CpValETF0.29%295K$2.4M—September 30, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

FUN insider transactions

latest 3
Six Flags Entertainment Corporation insider transactions
DateNameTransactionPriceSharesValue
2025-08-13Lisa C. McClainSell$26.36——
2025-07-16Lisa C. McClainBuy$28.04——
2025-05-12Michelle M FrymireSell$37.895,929$224,650

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

FUN shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns FUN

Institutional investors own 107.6% of Six Flags Entertainment's shares and insiders 2.84%. The largest holder is BlackRock Inc with 15.56% of the shares (15.9M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 5 reduced their stake in the latest filings. Short interest is 27.15% of the float, or 10.04 days of average trading volume. The share count rose 82.5% since 2014.

Related: FUN analyst forecast, FUN key metrics. See the FUN stock overview for the latest quote and news.

FUN ownership FAQ

Who owns the most Six Flags Entertainment stock?

The largest shareholders of Six Flags Entertainment are BlackRock Inc (15.56%), Darlington Partners Capital Management, LP (7.53%), Morgan Stanley - Brokerage Accounts (5.92%), Vanguard Portfolio Management, LLC (5.31%), Sachem Head Capital Management LP (4.92%).

What percentage of Six Flags Entertainment is owned by institutions?

Institutions hold 107.6% of Six Flags Entertainment's shares outstanding; insiders hold 2.84%.

Which funds own Six Flags Entertainment?

The largest fund holders of Six Flags Entertainment are iShares Core S&P Small-Cap ETF (5.95%), Vanguard MStar Total Stk Mkt Idx Invest (2.85%), iShares Russell 2000 ETF (2.44%), Vanguard Small Cap Index (1.91%), Vanguard MStar Small Cap Growth Indx Inv (1.07%).

What is Six Flags Entertainment's short interest?

23.0M shares of Six Flags Entertainment were sold short, 27.15% of the float; at the average daily volume it would take 10.04 days to cover.

Are insiders buying or selling Six Flags Entertainment?

Of the latest 3 reported insider transactions in Six Flags Entertainment (since May 12, 2025), 1 were purchases and 2 were sales.

How many shares of Six Flags Entertainment are outstanding?

Six Flags Entertainment has 102.3M shares outstanding, of which 86.7M are in the public float.

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