Anterix Inc.
ATEX · Telephone Communications (No Radiotelephone) · 19.5M shares · +3%/yr ↑ shares · EDGAR filings ↗
Net buyback after stock comp: $8M (gross $8M, SBC $82K)
Reference price $80.25 · est. market cap ~$1.6B — last insider sale, 2026-06-18 (estimated from the dated SEC Form 4 price × shares outstanding — not a live quote)
Grade
A86gen composite 94pct→92; size cap 86 (scale $262M)
Quarterly revenue
Last 4 quarters · from SEC filings.
Key metrics
Operating margin
1444.9%
Net margin
1394.2%
Return on equity
34.6%
Return on assets
19.5%
ROIC
28.3%
Revenue growth (QoQ)
41.0%
Current ratio
3.3×
Free cash flow
$5M
EBITDA
$94M
Tangible book value
$262M
Cash & investments
$99M
Stock comp / revenue
176.8%
Insider transactions · last 6 months
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| 2026-06-18 | Lang Scott A. | Sell | 170 | $80.25 |
| 2026-06-17 | Marquez Elena | Sell | 4.3K | $79.50 |
| 2026-06-17 | Marquez Elena | Option exercise | 1.2K | $40.00 |
| 2026-06-16 | YAZDI MAHVASH | Sell | 7.0K | $80.00 |
| 2026-06-15 | Guttman-McCabe Christopher | Option exercise | 51K | $34.40 |
| 2026-06-15 | Guttman-McCabe Christopher | Option exercise | 20K | $37.42 |
| 2026-06-15 | Guttman-McCabe Christopher | Option exercise | 6.7K | $42.14 |
| 2026-06-15 | Guttman-McCabe Christopher | Option exercise | 26K | $49.39 |
| 2026-06-15 | Guttman-McCabe Christopher | Sell | 35K | $81.32 |
| 2026-06-15 | Guttman-McCabe Christopher | Sell | 26K | $82.27 |
| 2026-06-15 | Guttman-McCabe Christopher | Sell | 16K | $83.72 |
| 2026-06-15 | Guttman-McCabe Christopher | Sell | 13K | $84.29 |
| 2026-06-15 | Ashe Gena L | Option exercise | 11K | $34.96 |
| 2026-06-15 | Ashe Gena L | Option exercise | 18K | $49.39 |
| 2026-06-15 | Ashe Gena L | Tax withheld | 4.7K | $82.50 |
| 2026-06-15 | Ashe Gena L | Tax withheld | 11K | $82.50 |
| 2026-06-15 | Ashe Gena L | Sell | 4.3K | $82.14 |
| 2026-06-15 | Lang Scott A. | Option exercise | 64K | $30.99 |
| 2026-06-15 | Lang Scott A. | Option exercise | 75K | $34.96 |
| 2026-06-15 | Lang Scott A. | Tax withheld | 40K | $82.50 |
| 2026-06-15 | Lang Scott A. | Tax withheld | 48K | $82.50 |
| 2026-06-15 | Ashe Gena L | Sell | 13K | $81.04 |
| 2026-06-15 | Fleischhauer Mark | Sell | 3.5K | $79.83 |
| 2026-06-15 | Guttman-McCabe Christopher | Option exercise | 12K | $25.75 |
| 2026-06-15 | Guttman-McCabe Christopher | Option exercise | 8.0K | $32.50 |
| 2026-05-22 | Ashe Gena L | Tax withheld | 2.5K | $60.00 |
| 2026-05-20 | Martin Heather | Grant | 3.7K | — |
| 2026-05-20 | Marquez Elena | Grant | 3.7K | — |
| 2026-05-20 | Guttman-McCabe Christopher | Grant | 4.9K | — |
| 2026-05-20 | Ashe Gena L | Grant | 3.7K | — |
| 2026-05-20 | Lang Scott A. | Grant | 18K | — |
| 2026-05-18 | Guttman-McCabe Christopher | Tax withheld | 1.4K | $57.06 |
| 2026-05-18 | Ashe Gena L | Tax withheld | 1.0K | $57.06 |
| 2026-05-15 | Marquez Elena | Tax withheld | 271 | $56.62 |
| 2026-03-03 | Ashe Gena L | Option exercise | 12K | $27.83 |
| 2026-03-03 | Ashe Gena L | Tax withheld | 12K | $36.18 |
All non-derivative Form 4 activity (SEC), newest first.
Notable events (8-K)
Recent filings
| Form | Filed | Period | Accession |
|---|---|---|---|
| 10-K | 2026-06-25 | 2026-03-31 | 0001304492-26-000027 ↗ |
| DEF 14A | 2026-06-25 | 2026-03-31 | 0001304492-26-000029 ↗ |
| 8-K | 2026-06-10 | 2026-06-10 | 0001304492-26-000024 ↗ |
| 8-K/A | 2026-04-21 | 2026-04-21 | 0001304492-26-000022 ↗ |
| 8-K | 2026-04-21 | 2026-04-21 | 0001304492-26-000019 ↗ |
| 8-K | 2026-04-06 | 2026-03-31 | 0001304492-26-000016 ↗ |
| 8-K | 2026-04-01 | 2026-03-25 | 0001304492-26-000014 ↗ |
| 10-Q | 2026-02-11 | 2025-12-31 | 0001304492-26-000010 ↗ |
| 8-K | 2026-02-11 | 2026-02-11 | 0001304492-26-000009 ↗ |
| 8-K | 2026-02-02 | 2026-01-30 | 0001304492-26-000004 ↗ |
| 8-K | 2026-01-07 | 2026-01-07 | 0001304492-26-000002 ↗ |
| 10-Q | 2025-11-12 | 2025-09-30 | 0001304492-25-000109 ↗ |