ATEX

Anterix Inc.

NasdaqCommunication ServicesTelephone Communications (No Radiotelephone)

Insider activity for last month from 09/19 to 10/19.

How these metrics are calculated

Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.

Total buying$00 buys
Total selling$2.80M7 sells
Net open-market−$2.80MBuying minus selling
Active insiders2Distinct reporting owners

Insider activity report

Calendar-month buckets within the selected date range

Latest filing: Oct 13, 2026

Open-market transaction mix · 7 transactions in the selected period
0 buys0%·100%7 sells

Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.

View exact monthly counts and disclosed values
Monthly activity within the selected period; unknown values remain unknown.
MonthBuysSellsAwards (A)Buy valueSell valueNet P/S value
Sep 2026020$0$2.40M-$2.40M
Oct 2026050$0$400k-$400k

Distinct insiders active

Reporting-owner CIKs by month · peak Sep 2026 (2)
Sep 2026: 2 insidersOct 2026: 1 insiders
Sep 2026Oct 2026
2distinct insiders in selected period
Largest insider activity
By absolute net disclosed value · current transaction page
2 insiders
  • LA
    Lang Scott A.PRES · 0 buys · 2 sells · 0 awards (A)
    -$2.4Mlast 09/23/2026
  • ME
    Marquez ElenaCFO · 0 buys · 5 sells · 0 awards (A)
    -$499.7klast 10/13/2026

ATEX transaction history

Newest filings · 20 transactions per page

Latest insider transactions

Form 4 filings from last month.
Newest company filings
CompanyInsiderActivityDisclosed valueFiled (ET)
ATEXAnterix Inc.
Marquez ElenaCFOM · exercise10b5-1 detectedDerivative securitySEC filing ↗$0View disclosure →
ATEXAnterix Inc.
Marquez ElenaCFOS · sale10b5-1 detectedSEC filing ↗-$17.1kView disclosure →
ATEXAnterix Inc.
Marquez ElenaCFOS · sale10b5-1 detectedSEC filing ↗-$81.5kView disclosure →
ATEXAnterix Inc.
Marquez ElenaCFOM · exercise10b5-1 detectedSEC filing ↗$49.0kView disclosure →
ATEXAnterix Inc.
Marquez ElenaCFOS · sale10b5-1 detectedSEC filing ↗-$8.25kView disclosure →
ATEXAnterix Inc.
Marquez ElenaCFOS · sale10b5-1 detectedSEC filing ↗-$32.7kView disclosure →
ATEXAnterix Inc.
Marquez ElenaCFOS · sale10b5-1 detectedSEC filing ↗-$260kView disclosure →
ATEXAnterix Inc.
Marquez ElenaCFOF · withholdingSEC filing ↗-$39.8kView disclosure →
ATEXAnterix Inc.
Marquez ElenaCFOF · withholdingSEC filing ↗-$108kView disclosure →
ATEXAnterix Inc.
Lang Scott A.PRESS · sale10b5-1 detectedAmended filingSEC filing ↗-$1.20MView disclosure →
ATEXAnterix Inc.
Lang Scott A.PRESS · saleSEC filing ↗-$1.20MView disclosure →
Recent filing activity
Most recent 6 transactions on this page · color = transaction code

Filing detail checks

Secondary metrics for the selected period
Largest buy-
Largest sale$1.20M
10b5-1 detected8
Amended rows1

Transaction codes

By Form 4 transaction code in selected period
11transactionstxns
  • S · Open-market sells · dominant7 · 64%
  • F · Tax withholding2 · 18%
  • M · Option exercise2 · 18%

Activity by reported role

A joint filing can contribute to multiple roles
Chief financial officer9
PRES2

Reported Holdings After

Separated by insider, security, and ownership type

Marquez ElenaCommon Stock · Direct
16.8k12.6kSep 29, 2026Oct 09, 2026
12,604Oct 09, 2026
Lang Scott A.Common Stock · Direct
26.5k26.5kSep 21, 2026Sep 21, 2026
26,470Sep 21, 2026
Marquez ElenaStock Option (Right to Buy) · Direct
1.2k1.2kOct 09, 2026Oct 09, 2026
1,227Oct 09, 2026

These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.

Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells red
5 active days
Sep 19 → Oct 19
LessMore

Anterix Inc. Insider Activity FAQ

SEC Form 4 context

Who recently reported transactions at Anterix Inc.?

Marquez Elena, Lang Scott A..

When was the latest reported open-market purchase?

No code-P purchase is available for this period.

When was the latest reported open-market sale?

Marquez Elena reported a sale on Oct 09, 2026 valued at $17.1k. Read the SEC filing.

What is the recent purchase and sale balance?

Net open-market selling in the selected period was $2,800,606.80. Sales can occur for many non-investment reasons.

Where can I see the original SEC filing?

Every transaction row and latest-activity fact links to its original SEC filing.

What do these Form 4 transaction codes mean?

P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.