Form 4 for ATEX Anterix Inc.
Accepted 2026-08-27 16:44:22 ET · period of report 2026-08-25 · accession 0001828490-26-000019 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-08-27 16:44 | 2026-08-25 | ATEX | Guttman-McCabe Christopher | Chief Reg, Comm Off | M - OptEx | $34.72 | +40.0K | 84.9K | +89% | +$1.39M |
| D | 2026-08-27 16:44 | 2026-08-25 | ATEX | Guttman-McCabe Christopher | Chief Reg, Comm Off | F - Tax | $90.38 | -16.6K | 68.3K | -20% | -$1.50M |
| DM | 2026-08-27 16:44 | 2026-08-25 | ATEX | Guttman-McCabe Christopher | Chief Reg, Comm Off | S - Sale+OE | $92.36 | -23.4K | 44.9K | -34% | -$2.16M |
| D | 2026-08-27 16:44 | 2026-08-25 | ATEX | Guttman-McCabe Christopher | Chief Reg, Comm Off | M - OptEx | $0.00 | -40.0K | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-08-25 | M | A | 40,000 | $34.72 | 84,876 | D | — | — | |
| 2 | Common | Common Stock | 2026-08-25 | F | D | 16,561 | $90.38 | 68,315 | D | — | — | (F1) The Reporting Person exercised a stock option to purchase 40,000 shares of the Issuer's Common Stock for $37.42 per share and paid the exercise price on a cashless basis, resulting in the Issuer withholding an aggregate of 16,561 shares of the Issuer's Common Stock subject to the stock option to pay the exercise price and to satisfy its income tax withholding and remittance obligations in connection with the exercise of the stock option. The withholding of shares referenced here does not involve an open market sale of stock. |
| 3 | Common | Common Stock | 2026-08-25 | S | D | 5,372 | $93.59 | 62,943 | D | — | — | (F2) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.215 to $93.27, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4. |
| 4 | Common | Common Stock | 2026-08-25 | S | D | 7,791 | $92.77 | 55,152 | D | — | — | (F3) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.265 to $92.265, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4. |
| 5 | Common | Common Stock | 2026-08-25 | S | D | 7,580 | $91.69 | 47,572 | D | — | — | (F4) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.205 to $91.22, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4. |
| 6 | Common | Common Stock | 2026-08-25 | S | D | 2,696 | $90.61 | 44,876 | D | — | — | (F5) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.01 to $90.06, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the ranges set forth in this footnote to this Form 4. |
| 7 | Derivative | Stock Option (Right to Buy) | 2026-08-25 | M | D | 40,000 | $0.00 | 0 | D | $37.42 · — to 2034-02-28 | 40,000 Common Stock | (F6) The option shares are fully vested. |