Sphere Entertainment Co.
MX ˙ BMV
SecurityMX:SPHR / Sphere Entertainment Co.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership317,617 shares
Latest Disclosed Value $ 37,288,234
Northern Trust Corp reports 4.53% increase in ownership of SPHR / Sphere Entertainment Co.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 317,617 shares of Sphere Entertainment Co. (MX:SPHR) valued at $37,288,234 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 303,856 shares of Sphere Entertainment Co.. This represents a change in shares of 4.53% during the quarter.

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.

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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 SPHERE ENTERTAINMENT CL A 55826T102 317,617 13,761 4.53 37,288 29.07 0.0010
2026-02-17 2025-12-31 13F SPHERE ENTERTAINMENT CL A 55826T102 303,856 -52,749 -14.79 28,891 30.42 0.0008
2025-11-14 2025-09-30 13F SPHERE ENTERTAINMENT CL A 55826T102 356,605 -16,169 -4.34 22,152 42.17 0.0006
2025-08-13 2025-06-30 13F SPHERE ENTERTAINMENT CL A 55826T102 372,774 -151,065 -28.84 15,582 -9.10 0.0021
2025-05-13 2025-03-31 13F SPHERE ENTERTAINMENT CL A 55826T102 523,839 152,893 41.22 17,140 14.60 0.0025
2025-02-14 2024-12-31 13F SPHERE ENTERTAINMENT CL A 55826T102 370,946 20,613 5.88 14,957 -3.37 0.0021
2024-11-13 2024-09-30 13F SPHERE ENTERTAINMENT COM 55826T102 350,333 5,401 1.57 15,478 27.98 0.0025
2024-08-14 2024-06-30 13F SPHERE ENTERTAINMENT COM 55826T102 344,932 263 0.08 12,093 -28.51 0.0020
2024-05-14 2024-03-31 13F SPHERE ENTERTAINMENT COM 55826T102 344,669 8,768 2.61 16,916 48.29 0.0029
2024-02-13 2023-12-31 13F SPHERE ENTERTAINMENT COM 55826T102 335,901 15,929 4.98 11,407 -4.06 0.0021
2023-11-13 2023-09-30 13F SPHERE ENTERTAINMENT COM 55826T102 319,972 -1,981 -0.62 11,890 34.84 0.0023
2023-08-11 2023-06-30 13F SPHERE ENTERTAINMENT COM 55826T102 321,953 -871 -0.27 8,818 -53.76 0.0017
2023-05-15 2023-03-31 13F MADISON SQUARE GRDN ENTERTNM COM 55826T102 322,824 -286 -0.09 19,069 31.24 0.0038
2023-02-13 2022-12-31 13F MADISON SQUARE GRDN ENTERTNM COM 55826T102 323,110 19,413 6.39 14,530 8.51 0.0030
2022-11-14 2022-09-30 13F MADISON SQUARE GRDN ENTERTNM COM 55826T102 303,697 -5,828 -1.88 13,390 -17.79 0.0031
2022-08-12 2022-06-30 13F MADISON SQUARE GRDN ENTERTNM COM 55826T102 309,525 238 0.08 16,287 -36.79 0.0035
2022-05-13 2022-03-31 13F MADISON SQUARE GRDN ENTERTNM COM 55826T102 309,287 8,946 2.98 25,767 21.97 0.0045
2022-02-08 2021-12-31 13F MADISON SQUARE GRDN ENTERTNM COM 55826T102 300,341 1,017 0.34 21,126 -2.88 0.0035
2021-11-15 2021-09-30 13F MADISON SQUARE GRDN ENTERTNM COM 55826T102 299,324 79,494 36.16 21,752 17.84 0.0039
2021-08-13 2021-06-30 13F MADISON SQUARE GRDN ENTERTNM CL A 55826T102 219,830 117,096 113.98 18,459 119.67 0.0033
2021-05-12 2021-03-31 13F MADISON SQUARE GRDN ENTERTNM CL A 55826T102 102,734 6,580 6.84 8,403 -16.79 0.0016
2021-02-11 2020-12-31 13F MADISON SQUARE GRDN ENTERTNM CL A 55826T102 96,154 31 0.03 10,099 53.43 0.0020
2020-11-16 2020-09-30 13F MADISON SQUARE GRDN ENTERTNM CL A 55826T102 96,123 -570 -0.59 6,582 -9.24 0.0014
2020-08-14 2020-06-30 13F MADISON SQUARE GRDN ENTERTNM COM 55826T102 96,693 96,693 7,252 0.0017
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.