← United States · Coverage record
US · SEC FORM 4
Anterix Inc.
ATEX · Nasdaq · CIK 0001304492 · Communication Services · Telecom Services
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
89 Form 4 transaction lines observed in the same window
47 sales · 42 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
Showing the six most active owners; 5 additional owner(s) remain in Form 4 evidence.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-12-18 · Lang Scott A..
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.
Price performance
- 1M
- -8.9%
- 3M
- -24.3%
- 6M
- +103.5%
- 12M
- +255.0%
Volatility & liquidity
- Volatility
- 56.3%
- Beta
- —
- Avg daily value
- USD 24.4M
Valuation
- Market cap
- USD 1.5B
- P/E
- 16444.7×
Fundamentals
- Profit margin
- 1.4%
- ROE
- 0.0%
- Industry
- Telecom Services
Market data
Price data up to: 2026-10-08 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, P/E, Profit margin, ROE · Fiscal year ended: 2026-03-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-06-19 · Status: PASS
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 1,655,766
- Previous report
- 1,647,665
- Avg daily volume
- 295,772
- Days to cover
- 5.6
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2025-12-18 | Lang Scott A. | Purchase (P) | Common Stock | 1,160 | USD 21.61 | USD 25,068 | SEC filing ↗ |
| 2025-12-08 | Lang Scott A. | Purchase (P) | Common Stock | 2,450 | USD 20.41 | USD 50,004 | SEC filing ↗ |
| 2025-09-18 | Lang Scott A. | Purchase (P) | Common Stock | 4,650 | USD 21.28 | USD 98,952 | SEC filing ↗ |
| 2025-08-19 | Gray Timothy | Purchase (P) | Common Stock | 50 | USD 22.07 | USD 1,104 | SEC filing ↗ |
| 2024-12-05 | Fleischhauer Mark | Purchase (P) | Common Stock | 3,500 | USD 34.19 | USD 119,665 | SEC filing ↗ |
| 2024-11-20 | DANIELS LESLIE B | Purchase (P) | Common Stock | 2,000 | USD 32.75 | USD 65,500 | SEC filing ↗ |
| 2023-12-01 | ALTMAN JEFFREY A | Purchase (P) | Common Stock | 44,465 | USD 33.91 | USD 1,507,649 | SEC filing ↗ |
| 2023-11-30 | ALTMAN JEFFREY A | Purchase (P) | Common Stock | 29,727 | USD 32.11 | USD 954,534 | SEC filing ↗ |
| 2023-11-29 | ALTMAN JEFFREY A | Purchase (P) | Common Stock, par value $0.0001 per share ("Common Stock") | 50,000 | USD 32.15 | USD 1,607,500 | SEC filing ↗ |
| 2023-08-04 | YAZDI MAHVASH | Purchase (P) | Common Stock | 1,000 | USD 29.89 | USD 29,890 | SEC filing ↗ |
| 2023-03-09 | Schwartz Robert Harris | Purchase (P) | Common Stock | 2,500 | USD 29.96 | USD 74,900 | SEC filing ↗ |
| 2023-02-24 | Gray Timothy | Purchase (P) | Common Stock | 100 | USD 29.04 | USD 2,904 | SEC filing ↗ |
| 2022-09-16 | Gray Timothy | Purchase (P) | Common Stock | 100 | USD 36.67 | USD 3,667 | SEC filing ↗ |
| 2022-05-27 | Gray Timothy | Purchase (P) | Common Stock | 100 | USD 42.64 | USD 4,264 | SEC filing ↗ |
| 2021-12-20 | Gray Timothy | Purchase (P) | Common Stock | 100 | USD 54.94 | USD 5,494 | SEC filing ↗ |
Form 4 evidence
95 transaction lines in the latest 365-day window; 403 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-10-09 | Marquez Elena | Sale (S) | Common Stock | 4,981 | USD 80.43 | USD 400,607 | SEC filing ↗ |
| 2026-10-09 | Marquez Elena | Option exercise / conversion (M) | Common Stock | 1,227 | USD 40.00 | USD 49,080 | SEC filing ↗ |
| 2026-10-05 | Marquez Elena | Tax withholding (F) | Common Stock | 473 | USD 84.33 | USD 39,888 | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-10-09 | Marquez Elena | Sale (S) | Common Stock | 4,981 | USD 80.43 | USD 400,607 | SEC filing ↗ |
| 2026-10-09 | Marquez Elena | Option exercise / conversion (M) | Common Stock | 1,227 | USD 40.00 | USD 49,080 | SEC filing ↗ |
| 2026-10-05 | Marquez Elena | Tax withholding (F) | Common Stock | 473 | USD 84.33 | USD 39,888 | SEC filing ↗ |
| 2026-09-29 | Marquez Elena | Tax withholding (F) | Common Stock | 1,325 | USD 81.75 | USD 108,319 | SEC filing ↗ |
| 2026-09-21 | Lang Scott A. | Sale (S) | Common Stock | 15,000 | USD 80.00 | USD 1,200,000 | SEC filing ↗ |
| 2026-09-21 | Lang Scott A. | Sale (S) | Common Stock | 15,000 | USD 80.00 | USD 1,200,000 | SEC filing ↗ |
| 2026-09-10 | Martin Heather | Sale (S) | Common Stock | 8,064 | USD 84.20 | USD 678,989 | SEC filing ↗ |
| 2026-09-10 | DANIELS LESLIE B | Sale (S) | Common Stock | 2,500 | USD 83.83 | USD 209,575 | SEC filing ↗ |
| 2026-09-09 | Martin Heather | Tax withholding (F) | Common Stock | 3,465 | USD 85.44 | USD 296,050 | SEC filing ↗ |
| 2026-09-08 | Ashe Gena L | Sale (S) | Common Stock | 4,357 | USD 85.44 | USD 372,262 | SEC filing ↗ |
| 2026-09-08 | Ashe Gena L | Option exercise / conversion (M) | Common Stock | 6,833 | USD 34.96 | USD 238,882 | SEC filing ↗ |
| 2026-09-08 | Ashe Gena L | Tax withholding (F) | Common Stock | 2,769 | USD 86.27 | USD 238,882 | SEC filing ↗ |
| 2026-09-08 | Ashe Gena L | Sale (S) | Common Stock | 4,357 | USD 85.44 | USD 372,262 | SEC filing ↗ |
| 2026-09-04 | DANIELS LESLIE B | Sale (S) | Common Stock | 4,100 | USD 87.07 | USD 356,999 | SEC filing ↗ |
| 2026-09-03 | DANIELS LESLIE B | Sale (S) | Common Stock | 6,000 | USD 87.15 | USD 522,900 | SEC filing ↗ |
| 2026-08-25 | Guttman-McCabe Christopher | Sale (S) | Common Stock | 23,439 | USD 92.36 | USD 2,164,831 | SEC filing ↗ |
| 2026-08-25 | Guttman-McCabe Christopher | Option exercise / conversion (M) | Common Stock | 40,000 | USD 34.72 | USD 1,388,800 | SEC filing ↗ |
| 2026-08-25 | Guttman-McCabe Christopher | Tax withholding (F) | Common Stock | 16,561 | USD 90.38 | USD 1,496,783 | SEC filing ↗ |
| 2026-08-24 | Kuhn Thomas R. | Sale (S) | Common Stock | 10,000 | USD 88.85 | USD 888,523 | SEC filing ↗ |
| 2026-08-24 | Kuhn Thomas R. | Option exercise / conversion (M) | Common Stock | 10,000 | USD 33.62 | USD 336,200 | SEC filing ↗ |
| 2026-08-19 | Heard William | Gift (G) | Common Stock, par value $0.0001 per share ("Common Stock") | 5,400 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-14 | Heard William | Sale (S) | Common Stock | 46,400 | USD 90.11 | USD 4,181,104 | SEC filing ↗ |
| 2026-08-14 | Lang Scott A. | Sale (S) | Common Stock | 35,057 | USD 90.22 | USD 3,162,677 | SEC filing ↗ |
| 2026-08-04 | YAZDI MAHVASH | Award / grant (A) | Common Stock | 1,598 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-04 | Heard William | Award / grant (A) | Common Stock, par value $0.0001 per share ("Common Stock") | 1,598 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-04 | Fleischhauer Mark | Award / grant (A) | Common Stock | 1,598 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-04 | DANIELS LESLIE B | Award / grant (A) | Common Stock | 1,598 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-04 | ALTMAN JEFFREY A; Owl Creek Asset Management, L.P. | Award / grant (A) | Common Stock, par value $0.0001 per share ("Common Stock") | 1,598 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-07-13 | Marquez Elena | Tax withholding (F) | Common Stock | 231 | USD 100.96 | USD 23,322 | SEC filing ↗ |
| 2026-07-13 | Guttman-McCabe Christopher | Tax withholding (F) | Common Stock | 1,516 | USD 100.96 | USD 153,055 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | ATEX |
| CIK | 0001304492 |
| Sector | Communication Services |
| Industry | Telecom Services Yahoo Finance |
| SEC SIC | 4813 Telephone Communications (No Radiotelephone) |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 403 transaction lines from 2020-02-21 to 2026-10-09 49 P purchase lines · 141 S sale lines · 213 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.