Company · Ownership research

Sphere Entertainment Co. SPHR

CIK 0001795250 · CUSIP 55826T102

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 55826T102 (SPHR), not CUSIP 55826T902 (SPHR), CUSIP 55826T952 (SPHR), and does not merge CUSIPs.

This page lists the top 20 of 379 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$458.79M 3,907,941 shares	0.01%	+1.85M(+89.80%)Added	SEC filing ↗ May 13, 2026	▾
02	Jericho Capital Asset Management L.P. CIK 1525234 · View history	$305.90M 2,605,615 shares	4.52%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
03	ARIEL INVESTMENTS, LLC CIK 936753 · View history	$289.08M 2,462,309 shares	3.24%	-706.23K(-22.30%)Reduced	SEC filing ↗ May 14, 2026	▾
04	MORGAN STANLEY CIK 895421 · View history	$240.32M 2,046,988 shares	0.01%	+125.12K(+6.50%)Added	SEC filing ↗ May 15, 2026	▾
05	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · Amended · View history	$181.00M 1,541,767 shares	0.01%	—	SEC filing ↗ May 8, 2026	▾
06	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$140.97M 1,200,760 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
07	STATE STREET CORP CIK 93751 · View history	$120.18M 1,023,654 shares	0.00%	+391.64K(+62.00%)Added	SEC filing ↗ May 15, 2026	▾
08	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$105.35M 897,586 shares	0.02%	-20.32K(-2.20%)Reduced	SEC filing ↗ May 7, 2026	▾
09	GAMCO INVESTORS, INC. ET AL CIK 807249 · View history	$93.30M 794,755 shares	0.92%	-64.13K(-7.50%)Reduced	SEC filing ↗ May 14, 2026	▾
10	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$85.75M 730,313 shares	0.01%	+82.48K(+12.70%)Added	SEC filing ↗ May 15, 2026	▾
11	STEADFAST CAPITAL MANAGEMENT LP CIK 1214822 · View history	$83.55M 711,661 shares	3.15%	-356.20K(-33.40%)Reduced	SEC filing ↗ May 15, 2026	▾
12	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$82.82M 705,486 shares	0.07%	+340.50K(+93.30%)Added	SEC filing ↗ May 15, 2026	▾
13	GILDER GAGNON HOWE & CO LLC CIK 902464 · View history	$65.92M 561,457 shares	0.79%	+311(+0.10%)Added	SEC filing ↗ May 15, 2026	▾
14	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$65.74M 559,935 shares	0.10%	+335.90K(+149.90%)Added	SEC filing ↗ May 14, 2026	▾
15	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND CIK 1535845 · View history	$61.51M 523,934 shares	0.10%	+104.19K(+24.80%)Added	SEC filing ↗ May 14, 2026	▾
16	GABELLI FUNDS LLC CIK 1081407 · View history	$61.32M 522,336 shares	0.41%	-17.40K(-3.20%)Reduced	SEC filing ↗ May 14, 2026	▾
17	UBS Group AG CIK 1610520 · View history	$60.93M 518,971 shares	0.01%	+167.01K(+47.50%)Added	SEC filing ↗ May 5, 2026	▾
18	T. Rowe Price Investment Management, Inc. CIK 1897612 · View history	$52.22M 444,763 shares	0.04%	+444.76KNew	SEC filing ↗ May 15, 2026	▾
19	AMERIPRISE FINANCIAL INC CIK 820027 · Amended · View history	$49.46M 421,328 shares	0.01%	+46.43K(+12.40%)Added	SEC filing ↗ Jul 17, 2026	▾
20	CITADEL ADVISORS LLC CIK 1423053 · View history	$45.45M 387,100 shares	0.03%	+365.04K(+1,654.90%)Added	SEC filing ↗ May 15, 2026	▾

Showing 20 / 379 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

379

Cancelled or null records excluded

Disclosed shares

34,888,682

Not deduplicated across managers

Disclosed value

$4.09B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Sphere Entertainment Co. · Q1 2026

Explore all 379 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.