Stocks › FUN
Six Flags Entertainment Corporation/NEW
FUN·NYSE·
United States·USD
United States·USD$11.63
-0.45 (-3.73%)
Close · Oct 7, 2026 · Close Prices from Tiingo.com
FUN
Six Flags Entertainment Corporation/NEW · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
FUNS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of FUN by members of U.S. Congress · 12 on record
Whale Activity
Position changes in FUN reported for 2026-06-30 by 15 tracked institutional filers
- Increased3
- New2
- Held0
- Decreased2
- Closed2
- No prior filing6
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 15.9M | $339.1M | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.4M | $115.7M | increased |
| Sachem Head Capital Management LP | 5.0M | $107.1M | — |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.3M | $90.9M | increased |
| GLENVIEW CAPITAL MANAGEMENT, LLC | 2.0M | $43.0M | — |
| CITADEL ADVISORS LLC | 1.1M | $23.4M | decreased |
| Long Pond Capital, LP | 979.4K | $20.9M | — |
| Silver Point Capital L.P. | 130.0K | $2.8M | — |
| MILLENNIUM MANAGEMENT LLC | 116.4K | $2.5M | decreased |
| CONTRARIAN CAPITAL MANAGEMENT, L.L.C. | 100.0K | $2.1M | — |
| Point72 Asset Management, L.P. | 50.0K | $1.1M | new |
| Twin Lakes Capital Management, LLC | 33.8K | $720K | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by FUN insiders, by quarter · Form 4
Recent Insider Transactions
1,126 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Reilly John TPresident & CEO · Director | Purchase | +15.7K | $15.80 | $248K | Aug 12, 2026 | Form 4 ↗ |
| Walia AshokChief Financial Officer | Grant / award | +40.6K | $0.00 | $0 | Jun 25, 2026 | Form 4 ↗ |
| Martin Ziegenfuss AmyChief Marketing Officer | Grant / award | +18.8K | $0.00 | $0 | Jun 25, 2026 | Form 4 ↗ |
| Tastepe TayfunChief Digital & Tech Officer | Grant / award | +13.0K | $0.00 | $0 | Jun 25, 2026 | Form 4 ↗ |
| Reilly John TPresident & CEO · Director | Grant / award | +122.2K | $0.00 | $0 | Jun 25, 2026 | Form 4 ↗ |
| Hoffman David R.Chief Accounting Officer | Grant / award | +13.0K | $0.00 | $0 | Jun 25, 2026 | Form 4 ↗ |
| Bennett Christopher LawrenceChief Legal Officer | Grant / award | +37.3K | $0.00 | $0 | Jun 25, 2026 | Form 4 ↗ |
| JAFFER REHANDirector | Purchase | +125.0K | $23.41 | $2.9M | Jun 15, 2026 | Form 4 ↗ |
| JAFFER REHANDirector | Purchase | +125.0K | $23.69 | $3.0M | Jun 12, 2026 | Form 4 ↗ |
| Spiegel Marilyn GDirector | Purchase | +2,500 | $19.10 | $48K | May 21, 2026 | Form 4 ↗ |
| HADDRILL RICHARD MExecutive Chair · Director | Purchase | +10.0K | $19.08 | $191K | May 12, 2026 | Form 4 ↗ |
| Spiegel Marilyn GDirector | Purchase | +2,500 | $19.13 | $48K | May 12, 2026 | Form 4 ↗ |
| HADDRILL RICHARD MExecutive Chair · Director | Grant / award | +217.8K | $0.00 | $0 | Apr 16, 2026 | Form 4 ↗ |
| Witherow Brian CChief Financial Officer | Tax withholding | −16.5K | $18.24 | $300K | Feb 23, 2026 | Form 4 ↗ |
| Tastepe TayfunChief Digital & Tech Officer | Tax withholding | −3,639 | $18.24 | $66K | Feb 23, 2026 | Form 4 ↗ |
| Hoffman David R.Chief Accounting Officer | Tax withholding | −4,788 | $18.24 | $87K | Feb 23, 2026 | Form 4 ↗ |
| Nurse BrianChief Legal Officer | Tax withholding | −11.2K | $18.24 | $205K | Feb 23, 2026 | Form 4 ↗ |
| FISHER TIMChief Operating Officer | Tax withholding | −19.1K | $18.24 | $348K | Feb 23, 2026 | Form 4 ↗ |
| Dieckmann ChristianChief Commercial Officer | Tax withholding | −3,887 | $18.24 | $71K | Feb 23, 2026 | Form 4 ↗ |
| Mason JenniferDirector | Grant / award | +13.0K | $0.00 | $0 | Jan 2, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding FUN · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF iShares Trust | 6.2M | $131.2M | 0.12% | Jun 30, 2026 |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 2.9M | $62.2M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF iShares Trust | 2.5M | $53.7M | 0.06% | Jun 30, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 2.1M | $45.0M | 0.02% | Jun 30, 2026 |
| VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 1.2M | $26.0M | 0.06% | Jun 30, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.2M | $25.0M | 0.03% | Jun 30, 2026 |
| State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF SPDR SERIES TRUST | 940.3K | $20.0M | 0.12% | Jun 30, 2026 |
| iShares Russell 2000 Growth ETF iShares Trust | 895.2K | $19.1M | 0.12% | Jun 30, 2026 |
| Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 1.1M | $18.4M | 0.05% | Jul 31, 2026 |
| VANGUARD TAX-MANAGED SMALL-CAP FUND VANGUARD TAX-MANAGED FUNDS | 563.9K | $12.0M | 0.10% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list FUN's shares (CUSIP 83001C108), each fund at its latest report since Mar 8, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- Ramsey B. JishiSCHEDULE 13G/A · passive (13G) · 7.7M shares7.5%
Aug 14, 2026 · ↗ - Scott W. ClarkSCHEDULE 13G/A · passive (13G) · 7.7M shares7.5%
Aug 14, 2026 · ↗ - Darlington Partners, L.P.SCHEDULE 13G/A · passive (13G) · 7.7M shares7.5%
Aug 14, 2026 · ↗ - Darlington Partners GP, LLCSCHEDULE 13G/A · passive (13G) · 7.7M shares7.5%
Aug 14, 2026 · ↗ - Darlington Partners Capital Management, LPSCHEDULE 13G/A · passive (13G) · 7.7M shares7.5%
Aug 14, 2026 · ↗ - BlackRock, Inc.SCHEDULE 13G/A · passive (13G) · 14.7M shares14.4%
Jul 30, 2026 · ↗ - Ramsey B. JishiSCHEDULE 13G/A · passive (13G) · 8.7M shares8.5%
May 15, 2026 · ↗ - Scott W. ClarkSCHEDULE 13G/A · passive (13G) · 8.7M shares8.5%
May 15, 2026 · ↗ - Darlington Partners, L.P.SCHEDULE 13G/A · passive (13G) · 8.7M shares8.5%
May 15, 2026 · ↗ - Darlington Partners GP, LLCSCHEDULE 13G/A · passive (13G) · 8.7M shares8.5%
May 15, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming Six Flags Entertainment Corporation/NEW as client
No lobbying filings found naming Six Flags Entertainment Corporation/NEW as the client.
Government Contracts
Federal awards to Six Flags Entertainment Corporation/NEW · USAspending
No federal contract awards found for Six Flags Entertainment Corporation/NEW.
U.S. Patents
Recent USPTO applications naming Six Flags Entertainment Corporation/NEW
No USPTO patent applications found for Six Flags Entertainment Corporation/NEW.
Annual Financials
From FUN's 10-K filings · XBRL
No annual XBRL figures on record for FUN. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in FUN's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 2.02, 9.01Results of operationsAug 6, 2026
EDGAR ↗ - 8-K · Items 5.02, 7.01, 9.01Officer / director change · Reg FD disclosureJul 2, 2026
EDGAR ↗ - 8-K · Items 5.02Officer / director changeJul 1, 2026
EDGAR ↗ - 8-K · Items 5.07Shareholder voteMay 27, 2026
EDGAR ↗ - 8-K · Items 5.02, 7.01, 9.01Officer / director change · Reg FD disclosureMay 27, 2026
EDGAR ↗ - 8-K · Items 1.01, 5.02, 9.01Material agreement · Officer / director changeMay 20, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsMay 7, 2026
EDGAR ↗ - 8-K · Items 5.02, 7.01, 9.01Officer / director change · Reg FD disclosureMay 7, 2026
EDGAR ↗
About Six Flags Entertainment Corporation/NEW
From SEC EDGAR company records
Industry (SIC 7900)Services-Amusement & Recreation Services
SectorCommunication
HeadquartersCHARLOTTE, NC
IncorporatedDE
SEC CIK0001999001 ↗
Former namesCopperSteel HoldCo, Inc.