Anterix Inc. - ATEX

All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)? Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).

Files summary

Total files loaded: 61
Latest filed: Oct 06, 2026
Form Count
4 36
144 12
8-K 5
4/A 4
SCHEDULE 13D/A 1
SCHEDULE 13G 1
SCHEDULE 13G/A 1
8-K/A 1

Latest files

Filed Form Report period Accession SEC
Oct 06, 2026 4 Oct 05, 2026 0002090789-26-000013 View
Sep 29, 2026 4 Sep 29, 2026 0002090789-26-000011 View
Sep 23, 2026 4/A Sep 21, 2026 0001571601-26-000014 View
Sep 22, 2026 4 Sep 21, 2026 0001571601-26-000012 View
Sep 21, 2026 144 — 0001950047-26-009685 View
Sep 18, 2026 8-K Sep 16, 2026 0001304492-26-000053 View
Sep 11, 2026 4 Sep 10, 2026 0001052559-26-000006 View
Sep 11, 2026 4/A Sep 08, 2026 0001669943-26-000021 View
Sep 11, 2026 4 Sep 09, 2026 0002090798-26-000006 View
Sep 10, 2026 144 — 0001950047-26-009277 View
Sep 08, 2026 144 — 0001950047-26-009224 View
Sep 08, 2026 4 Sep 03, 2026 0001052559-26-000004 View
Sep 08, 2026 4 Sep 08, 2026 0001669943-26-000019 View
Aug 27, 2026 4 Aug 25, 2026 0001828490-26-000019 View
Aug 26, 2026 4 May 20, 2026 0001571521-26-000002 View
Aug 25, 2026 144 — 0001950047-26-008663 View
Aug 24, 2026 144 — 0001950047-26-008584 View
Aug 20, 2026 4 Aug 19, 2026 0002035875-26-000009 View
Aug 18, 2026 4 Aug 14, 2026 0002035875-26-000006 View
Aug 17, 2026 4 Aug 14, 2026 0001571601-26-000010 View
Aug 14, 2026 144 — 0001950047-26-008187 View
Aug 14, 2026 4/A Jun 15, 2026 0001828490-26-000016 View
Aug 11, 2026 8-K Aug 11, 2026 0001304492-26-000045 View
Aug 07, 2026 4 Dec 29, 2025 0002035875-26-000004 View
Aug 06, 2026 4 Aug 04, 2026 0000902664-26-003332 View
Aug 06, 2026 8-K Aug 04, 2026 0001304492-26-000041 View
Aug 06, 2026 4 Aug 04, 2026 0002035875-26-000002 View
Aug 06, 2026 4 Aug 04, 2026 0001052559-26-000002 View
Aug 06, 2026 4 Aug 04, 2026 0001182496-26-000013 View
Aug 06, 2026 4 Aug 04, 2026 0002036507-26-000007 View
Jul 14, 2026 4 Jul 13, 2026 0001828490-26-000013 View
Jul 14, 2026 4 Jul 13, 2026 0002090789-26-000009 View
Jul 10, 2026 4/A Jun 15, 2026 0001828490-26-000011 View
Jul 08, 2026 SCHEDULE 13D/A — 0000902664-26-003041 View
Jul 08, 2026 SCHEDULE 13G — 0001897612-26-000524 View
Jun 22, 2026 4 Jun 18, 2026 0001571601-26-000008 View
Jun 18, 2026 4 Jun 17, 2026 0002090789-26-000007 View
Jun 17, 2026 4 Jun 16, 2026 0001182496-26-000007 View
Jun 17, 2026 4 Jun 15, 2026 0002036507-26-000004 View
Jun 17, 2026 4 Jun 15, 2026 0001571601-26-000006 View
Jun 17, 2026 4 Jun 15, 2026 0001669943-26-000017 View
Jun 17, 2026 4 Jun 15, 2026 0001828490-26-000008 View
Jun 17, 2026 144 — 0001950047-26-006246 View
Jun 16, 2026 144 — 0001949846-26-000387 View
Jun 15, 2026 144 — 0001950047-26-006117 View
Jun 15, 2026 144 — 0001950047-26-006069 View
Jun 10, 2026 8-K Jun 10, 2026 0001304492-26-000024 View
May 26, 2026 4 May 22, 2026 0001669943-26-000012 View
May 22, 2026 4 May 20, 2026 0001669943-26-000010 View
May 22, 2026 4 May 20, 2026 0001571601-26-000002 View
May 22, 2026 4 May 20, 2026 0001828490-26-000005 View
May 22, 2026 4 May 20, 2026 0002090798-26-000003 View
May 22, 2026 4 May 20, 2026 0002090789-26-000005 View
May 20, 2026 4 May 18, 2026 0001669943-26-000008 View
May 20, 2026 4 May 18, 2026 0001828490-26-000003 View
May 19, 2026 4 May 15, 2026 0002090789-26-000003 View
Apr 27, 2026 SCHEDULE 13G/A — 0002012383-26-001671 View
Apr 21, 2026 8-K/A Apr 21, 2026 0001304492-26-000022 View
Apr 21, 2026 8-K Apr 21, 2026 0001304492-26-000019 View
Apr 17, 2026 144 — 0001950047-26-003593 View
Apr 16, 2026 144 — 0001950047-26-003577 View