Company · Ownership research

Anterix Inc. ATEX

CIK 0001304492 · CUSIP 03676C100

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 03676C100 (ATEX), not CUSIP 03676C900 (ATEX), CUSIP 03676C950 (ATEX), and does not merge CUSIPs.

This page lists the top 20 of 131 rows by value; the complete set is available through the API.

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	Owl Creek Asset Management, L.P. CIK 1313756 · View history	$198.07M 5,411,776 shares	32.10%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
02	Heard Capital LLC CIK 1796409 · View history	$62.83M 1,716,738 shares	3.73%	-35.40K(-2.00%)Reduced	SEC filing ↗ May 15, 2025	▾
03	VANGUARD GROUP INC CIK 102909 · View history	$38.43M 1,050,022 shares	0.00%	+15.04K(+1.50%)Added	SEC filing ↗ May 9, 2025	▾
04	BlackRock, Inc. CIK 2012383 · View history	$36.65M 1,001,491 shares	0.00%	+19.86K(+2.00%)Added	SEC filing ↗ May 2, 2025	▾
05	DG Capital Management, LLC CIK 1512716 · View history	$23.59M 644,413 shares	12.85%	+215.40K(+50.20%)Added	SEC filing ↗ May 14, 2025	▾
06	QVT Financial LP CIK 1290162 · View history	$18.44M 503,941 shares	1.76%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
07	GARNET EQUITY CAPITAL HOLDINGS, INC. CIK 1423876 · View history	$14.18M 387,395 shares	7.96%	-1.43K(-0.40%)Reduced	SEC filing ↗ May 15, 2025	▾
08	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$12.92M 352,982 shares	0.00%	-5.90K(-1.60%)Reduced	SEC filing ↗ May 13, 2025	▾
09	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$12.67M 346,075 shares	0.00%	-43.52K(-11.20%)Reduced	SEC filing ↗ May 13, 2025	▾
10	STATE STREET CORP CIK 93751 · View history	$12.01M 328,130 shares	0.00%	-47.93K(-12.70%)Reduced	SEC filing ↗ May 15, 2025	▾
11	SCOGGIN MANAGEMENT LP CIK 1086416 · View history	$10.98M 300,000 shares	5.44%	+300.00KNew	SEC filing ↗ May 15, 2025	▾
12	FMR LLC CIK 315066 · View history	$10.82M 295,515 shares	0.00%	-11.77K(-3.80%)Reduced	SEC filing ↗ May 12, 2025	▾
13	CITADEL ADVISORS LLC CIK 1423053 · View history	$9.12M 249,194 shares	0.01%	+81.29K(+48.40%)Added	SEC filing ↗ May 15, 2025	▾
14	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$9.09M 248,408 shares	0.01%	+40.98K(+19.80%)Added	SEC filing ↗ May 15, 2025	▾
15	Clearbridge Investments, LLC CIK 1348883 · View history	$8.62M 235,511 shares	0.01%	-64.09K(-21.40%)Reduced	SEC filing ↗ May 13, 2025	▾
16	GAMCO INVESTORS, INC. ET AL CIK 807249 · View history	$7.41M 202,570 shares	0.08%	+54.30K(+36.60%)Added	SEC filing ↗ May 14, 2025	▾
17	Nuveen, LLC CIK 1871926 · View history	$7.20M 196,835 shares	0.00%	—	SEC filing ↗ May 12, 2025	▾
18	MORGAN STANLEY CIK 895421 · View history	$6.98M 190,793 shares	0.00%	+96.75K(+102.90%)Added	SEC filing ↗ May 15, 2025	▾
19	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$6.09M 166,427 shares	0.00%	+141.05K(+555.80%)Added	SEC filing ↗ May 15, 2025	▾
20	Roubaix Capital, LLC CIK 1769700 · View history	$5.92M 161,706 shares	3.08%	+161.71KNew	SEC filing ↗ May 13, 2025	▾

Showing 20 / 131 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

131

Cancelled or null records excluded

Disclosed shares

16,354,240

Not deduplicated across managers

Disclosed value

$598.60M

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.

Anterix Inc. · Q1 2025

Explore all 131 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.