Anterix Inc is the holder of licensed 900 MHz spectrum (896-901/935-940 MHz) with coverage spanning the contiguous United States, Hawaii, Alaska, and Puerto Rico. The Company is focused on commercializing its spectrum assets and delivering intelligent infrastructure solutions, including private broadband networks, tower access, and turnkey connectivity management, to utility and critical infrastructure enterprises. It provides mission-critical private 900 MHz spectrum to the utility sector and integrated deployment solutions that support a secure, resilient, and decarbonized future. Its solutions include 900 MHz Private Wireless, TowerX, and CatalyX.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 31 | 363,511 | $30.75M |
| Grant or award | 6 | 10,781 | |
| Option exercise | 26 | 683,528 | |
| Tax withholding / forfeiture | 7 | 122,056 | |
| Bona-fide gift | 2 | 7,287 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
70 Form 4 filings on record, the earliest from Oct 8, 2024, newest first. Filing history page 1 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Christopher Guttman-Mccabe - Officer | Option exercise | Common Stock | 40,000 | $34.72 | $1.39M | |
| Christopher Guttman-Mccabe - Officer | Tax withholding / forfeiture | Common Stock | 16,561 | $90.38 | $1.50M | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 5,372 | $93.59 | $503K | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 7,791 | $92.77 | $723K | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 7,580 | $91.69 | $695K | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 2,696 | $90.61 | $244K | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Stock Option (Right to Buy) | 40,000 | $0.00 | - | |
| Thomas R. Kuhn - Director | Grant or award | Common Stock | 2,791 | - | - | |
| Thomas R. Kuhn - Director | Open-market sale | Common Stock | 1,654 | $79.52 | $132K | |
| Thomas R. Kuhn - Director | Option exercise | Common Stock | 10,000 | $33.62 | $336K | |
| Thomas R. Kuhn - Director | Open-market sale | Common Stock | 4,392 | $88.18 | $387K | |
| Thomas R. Kuhn - Director | Open-market sale | Common Stock | 4,418 | $89.12 | $394K | |
| Thomas R. Kuhn - Director | Open-market sale | Common Stock | 790 | $90.00 | $71K | |
| Thomas R. Kuhn - Director | Open-market sale | Common Stock | 400 | $91.01 | $36K | |
| Thomas R. Kuhn - Director | Option exercise | Stock Option (Right to Buy) | 10,000 | $0.00 | - | |
| William Heard - Director | Gift | Common Stock, par value $0.0001 per share ("Common Stock") | 5,400 | $0.00 | - | |
| William Heard - Director | Open-market sale | Common Stock | 46,400 | $90.11 | $4.18M | |
| Open-market sale | Common Stock | 800 | $91.69 | $73K | ||
| Open-market sale | Common Stock | 10,087 | $90.87 | $917K | ||
| Open-market sale | Common Stock | 18,797 | $90.16 | $1.69M | ||
| Open-market sale | Common Stock | 5,373 | $88.96 | $478K | ||
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 11,668 | $78.73 | $919K | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 5,030 | $79.53 | $400K | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 21,434 | $80.63 | $1.73M | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 34,870 | $81.51 | $2.84M | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 21,045 | $82.39 | $1.73M | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 21,050 | $83.86 | $1.77M | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 7,755 | $84.40 | $655K | |
| William Heard - Director | Gift | Common Stock, par value $0.0001 per share ("Common Stock") | 1,887 | $0.00 | - | |
| William Heard - Director | Grant or award | Common Stock, par value $0.0001 per share ("Common Stock") | 1,598 | $0.00 | - | |
| Grant or award | Common Stock, par value $0.0001 per share ("Common Stock") | 1,598 | $0.00 | - | ||
| Mahvash Yazdi - Director | Grant or award | Common Stock | 1,598 | $0.00 | - | |
| Mark Fleischhauer - Director | Grant or award | Common Stock | 1,598 | $0.00 | - | |
| Leslie B. Daniels - Director | Grant or award | Common Stock | 1,598 | $0.00 | - | |
| Elena Marquez - Officer | Tax withholding / forfeiture | Common Stock | 231 | $100.96 | $23K | |
| Christopher Guttman-Mccabe - Officer | Tax withholding / forfeiture | Common Stock | 1,516 | $100.96 | $153K | |
| Open-market sale | Common Stock | 170 | $80.25 | $14K | ||
| Elena Marquez - Officer | Option exercise | Common Stock | 1,226 | $40.00 | $49K | |
| Elena Marquez - Officer | Open-market sale | Common Stock | 4,291 | $79.50 | $341K | |
| Elena Marquez - Officer | Option exercise | Stock Option (Right to Buy) | 1,226 | $0.00 | - | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Stock Option (Right to Buy) | 8,000 | $0.00 | - | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Stock Option (Right to Buy) | 50,876 | $0.00 | - | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Stock Option (Right to Buy) | 20,000 | $0.00 | - | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Stock Option (Right to Buy) | 6,715 | $0.00 | - | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Stock Option (Right to Buy) | 25,511 | $0.00 | - | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Common Stock | 11,750 | $25.75 | $303K | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Common Stock | 8,000 | $32.50 | $260K | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Common Stock | 50,876 | $34.40 | $1.75M | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Common Stock | 20,000 | $37.42 | $748K | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Common Stock | 6,715 | $42.14 | $283K | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Common Stock | 25,511 | $49.39 | $1.26M | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 35,321 | $81.32 | $2.87M | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 26,411 | $82.27 | $2.17M | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 16,381 | $83.72 | $1.37M | |
| Christopher Guttman-Mccabe - Officer | Open-market sale | Common Stock | 13,324 | $84.29 | $1.12M | |
| Christopher Guttman-Mccabe - Officer | Option exercise | Stock Option (Right to Buy) | 11,750 | $0.00 | - | |
| Gena L. Ashe - Officer | Tax withholding / forfeiture | Common Stock | 10,996 | $82.50 | $907K | |
| Gena L. Ashe - Officer | Open-market sale | Common Stock | 13,375 | $81.04 | $1.08M | |
| Gena L. Ashe - Officer | Option exercise | Stock Option (Right to Buy) | 11,000 | $0.00 | - | |
| Gena L. Ashe - Officer | Option exercise | Stock Option (Right to Buy) | 18,368 | $0.00 | - | |
| Gena L. Ashe - Officer | Option exercise | Common Stock | 11,000 | $34.96 | $385K | |
| Gena L. Ashe - Officer | Option exercise | Common Stock | 18,368 | $49.39 | $907K | |
| Gena L. Ashe - Officer | Open-market sale | Common Stock | 4,336 | $82.14 | $356K | |
| Gena L. Ashe - Officer | Tax withholding / forfeiture | Common Stock | 4,661 | $82.50 | $385K | |
| Tax withholding / forfeiture | Common Stock | 48,470 | $82.50 | $4.00M | ||
| Option exercise | Stock Option (Right to Buy) | 63,788 | $0.00 | - | ||
| Option exercise | Common Stock | 63,788 | $30.99 | $1.98M | ||
| Option exercise | Common Stock | 74,530 | $34.96 | $2.61M | ||
| Tax withholding / forfeiture | Common Stock | 39,621 | $82.50 | $3.27M | ||
| Option exercise | Stock Option (Right to Buy) | 74,530 | $0.00 | - | ||
| Mark Fleischhauer - Director | Open-market sale | Common Stock | 3,500 | $79.83 | $279K | |
| Mahvash Yazdi - Director | Open-market sale | Common Stock | 7,000 | $80.00 | $560K | |
| Gena L. Ashe - Officer | Tax withholding / forfeiture | Common Stock | 2,501 | $60.00 | $150K | |
| Grant or award | Common Stock | 18,210 | $0.00 | - | ||
| Grant or award | Stock Option (Right to Buy) | 72,839 | $0.00 | - | ||
| Gena L. Ashe - Officer | Grant or award | Common Stock | 3,694 | $0.00 | - | |
| Gena L. Ashe - Officer | Grant or award | Stock Option (Right to Buy) | 17,453 | $0.00 | - | |
| Christopher Guttman-Mccabe - Officer | Grant or award | Common Stock | 4,926 | $0.00 | - | |
| Christopher Guttman-Mccabe - Officer | Grant or award | Stock Option (Right to Buy) | 23,271 | $0.00 | - | |
| Elena Marquez - Officer | Grant or award | Common Stock | 3,694 | $0.00 | - | |
| Elena Marquez - Officer | Grant or award | Stock Option (Right to Buy) | 17,453 | $0.00 | - | |
| Heather Martin - Officer | Grant or award | Common Stock | 3,694 | $0.00 | - | |
| Heather Martin - Officer | Grant or award | Stock Option (Right to Buy) | 17,453 | $0.00 | - | |
| Gena L. Ashe - Officer | Tax withholding / forfeiture | Common Stock | 1,028 | $57.06 | $59K | |
| Christopher Guttman-Mccabe - Officer | Tax withholding / forfeiture | Common Stock | 1,426 | $57.06 | $81K |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| CHRISTOPHER GUTTMAN-MCCABE | Officer | 23,439 | $2.16M | View on EDGAR | |
| THOMAS KUHN | Director | 10,000 | $889K | View on EDGAR | |
| SCOTT LANG | Officer, Director | 35,057 | $3.16M | View on EDGAR |
Anterix Inc. (ATEX) had 22 insider filings in the last 90 days, with the most recent on 2026-08-27. The full record for ATEX runs to 70 Form 4 filings, the earliest from 2024-10-08. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of ATEX were filed in the last 90 days. 4 purchases are on record for this company.
31 insider sales of ATEX were filed in the last 90 days, totaling $30.75M.
This page tracks ATEX Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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