Sphere Entertainment Co.
Sphere Entertainment Co. (SPHR) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SPHR · as of Mar 31, 2025
Ownership Breakdown
246
Institutional Holders
▼ 8 vs Q4
$1.17B
Total Inst. Value
▼ $207.15M vs Q4
36.01M
Shares Outstanding
freeFloat 94.14%
35.89M
13F Shares Held
▲ 1.63M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
SPHR largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
ARIEL INVESTMENTS, LLC services-amusement & recreation services | 6.30M | 17.47% | 17.47% | $206.08B | May 15, 2025 | ▲ 553.9K |
JERICHO CAPITAL ASSET MANAGEMENT L.P. services-amusement & recreation services | 2.81M | 7.78% | 7.78% | $91.80B | May 15, 2025 | — held |
VANGUARD GROUP INC services-amusement & recreation services | 2.72M | 7.55% | 7.55% | $89.11B | May 9, 2025 | ▼ 71.4K |
BLACKROCK, INC. services-amusement & recreation services | 2.08M | 5.77% | 5.77% | $68.06B | May 2, 2025 | ▼ 106.4K |
DIMENSIONAL FUND ADVISORS LP services-amusement & recreation services | 1.44M | 3.98% | 3.98% | $46.97B | May 13, 2025 | ▼ 30.0K |
MORGAN STANLEY services-amusement & recreation services | 1.37M | 3.81% | 3.81% | $44.97B | May 15, 2025 | ▲ 103.4K |
POINT72 ASSET MANAGEMENT, L.P. services-amusement & recreation services | 1.26M | 3.48% | 3.48% | $41.08B | Jul 21, 2025 | ▼ 7.3K |
STEADFAST CAPITAL MANAGEMENT LP services-amusement & recreation services | 1.12M | 3.10% | 3.10% | $36.53B | May 15, 2025 | ▲ 190.4K |
CITADEL ADVISORS LLC services-amusement & recreation services | 896.2K | 2.49% | 2.49% | $29.32B | May 15, 2025 | ▼ 328.0K |
GAMCO INVESTORS, INC. ET AL services-amusement & recreation services | 885.9K | 2.46% | 2.46% | $28.99B | May 14, 2025 | ▼ 20.5K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
23
Increased
+3.49M shares4
New Positions
first time holders21
Decreased
−1.83M shares0
Sold Out
fully exitedNet shares change (top 50)
+1.66M
+3.49M / −1.83M
Net new holders
+6
4 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SPHR insider trading · insider activity
Source: SEC Form 4
13
Buy transactions
14
Sell transactions
0.93
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Lo Allen M. EVP & Chief Legal Officer | Mar 30, 2026 | Award | 15,734 | — | — | 15.7K | Form 4 ↗ |
Langer Robert H. EVP, CFO & Treasurer | Mar 13, 2026 | Tax Withhold | 5,416 | $105.70 | $572.5K | 5.2K | Form 4 ↗ |
Dolan Ryan Thomas director | Mar 13, 2026 | Tax Withhold | 325 | $105.70 | $34.4K | 4.1K | Form 4 ↗ |
Koester Jennifer President & COO, Sphere | Mar 13, 2026 | Tax Withhold | 8,808 | $105.70 | $931.0K | 30.9K | Form 4 ↗ |
Granville-Smith David Executive Vice President | Mar 13, 2026 | Tax Withhold | 3,688 | $105.70 | $389.8K | 56.5K | Form 4 ↗ |
Winters Christopher J. SVP, Controller & PAO | Mar 11, 2026 | Award | 1,273 | — | — | 1.3K | Form 4 ↗ |
Dolan Ryan Thomas director | Mar 11, 2026 | Award | 2,391 | — | — | 2.4K | Form 4 ↗ |
Dolan Ryan Thomas director | Oct 25, 2023 | Award | 14,031 | $45.60 | $639.8K | 14.0K | Form 4 ↗ |
Dolan Ryan Thomas director | Oct 25, 2023 | Award | 14,031 | $50.67 | $711.0K | 14.0K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Sphere Entertainment Co. (SPHR) is primarily owned by institutional investors, who hold approximately 99.7% of total shares outstanding. Company insiders own approximately 5.86%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Sphere Entertainment Co. is ARIEL INVESTMENTS, LLC, holding approximately 6.30 million shares — equal to 17.47% of outstanding shares — as of March 31, 2025.
A total of 246 institutional investors currently hold SPHR stock, with a combined institutional value of approximately $1.17 billion as of the most recent 13F filing period.
Frequently asked questions
SPHR ownershipSphere Entertainment Co. (SPHR) is primarily owned by institutional investors, who hold approximately 99.7% of shares. The largest shareholder is ARIEL INVESTMENTS, LLC with a 17.47% stake. Company insiders hold 5.86%. Data sourced from SEC Form 13F as of March 31, 2025.