Latest filingAug 27, 2026Most recent Form 4
ATEX
Anterix Inc.
NasdaqCommunication ServicesTelephone Communications (No Radiotelephone)
Insider activity for last month from 08/03 to 09/03. 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$1.03B13 sells
Net open-market-$1.03B4 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period19transactions
- S · Open-market sells · dominant13 · 68%
- M · Option exercise4 · 21%
- F · Tax withholding1 · 5%
- G · Gifts1 · 5%
Activity by reported role
A joint filing can contribute to multiple roles26transactions
- Director · dominant8 · 31%
- CO7 · 27%
- CR7 · 27%
- PRES4 · 15%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (4)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeGuttman-McCabe ChristopherCommon Stock · Direct
84,876Aug 25, 2026
Kuhn Thomas R.Common Stock · Direct
17,731Aug 24, 2026
Lang Scott A.Common Stock · Direct
75,727Aug 14, 2026
Heard WilliamCommon Stock · Indirect · By Heard Capital LLC
1,670,338Aug 14, 2026
Heard WilliamCommon Stock, par value $0.0001 per share ("Common Stock") · Direct
3,965Aug 19, 2026
Kuhn Thomas R.Stock Option (Right to Buy) · Direct
48,998Aug 24, 2026
Guttman-McCabe ChristopherStock Option (Right to Buy) · Direct
0Aug 25, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 03 → Sep 03
LessMore
Top insiders
By absolute net value across the selected period- HW-$4.2M
- LA-$3.2M
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
ATEX transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| ATEX | Heard William | DIR | sale | 46.4k | -$418M | S | −1.3% | 08/18 | 08/14 | |
| ATEX | Lang Scott A. | PRES | sale | 5.37k | -$47.8M | S | −2.2% | 08/17 | 08/14 | |
| ATEX | Lang Scott A. | PRES | sale | 18.7k | -$169M | S | −2.2% | 08/17 | 08/14 | |
| ATEX | Lang Scott A. | PRES | sale | 10.0k | -$91.6M | S | −2.2% | 08/17 | 08/14 | |
| ATEX | Lang Scott A. | PRES | sale | 800 | -$7.33M | S | −2.2% | 08/17 | 08/14 |
Anterix Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Anterix Inc.?
Guttman-McCabe Christopher, Kuhn Thomas R., Heard William, 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?
Guttman-McCabe Christopher reported a sale on Aug 25, 2026 valued at $24.4M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $10,397,192.52. 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.