SEC Form 4 · Updated Daily
ATEX
— ANTERIX INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| OWL CREEK OVERSEAS MASTER FUND, LTD. | 10%+ Owner | 5,411,738 | 2021-02-24 | P |
| Owl Creek II, L.P. | 10%+ Owner | 5,411,738 | 2021-02-24 | P |
| OWL CREEK ADVISORS, LLC | 10%+ Owner | 5,411,738 | 2021-02-24 | P |
| Owl Creek Credit Opportunities Master Fund, L.P. | 10%+ Owner | 5,411,738 | 2021-02-24 | P |
| Owl Creek I, L.P. | 10%+ Owner | 5,411,738 | 2021-02-24 | P |
| OWL CREEK SRI MASTER FUND, LTD. | 10%+ Owner | 5,411,738 | 2021-02-24 | P |
| Owl Creek Special Situations Fund, L.P. | 10%+ Owner | 5,411,738 | 2021-02-24 | P |
| FEINBERG STEPHEN | 10%+ Owner | 1,701,599 | 2019-10-11 | S |
| PACIFIC INVESTMENT MANAGEMENT CO LLC | 10%+ Owner | 1,474,900 | 2018-08-20 | S |
| FIE II LLC | 10%+ Owner | 1,474,900 | 2018-08-20 | S |
| PIMCO BRAVO FUND II, L.P. | 10%+ Owner | 1,474,900 | 2018-08-20 | S |
| MCAULEY BRIAN | Director · Officer | 332,086 | 2020-08-31 | A |
| Schwartz Robert Harris | Director · Officer | 115,867 | 2024-08-23 | F |
| Guttman-McCabe Christopher | Officer | 84,876 | 2026-08-25 | M |
| Pescatore John | Director · Officer | 80,106 | 2018-06-07 | F |
| Gray Timothy | Officer | 77,022 | 2025-08-19 | P |
| SITES JOHN C JR | Director | 43,506 | 2017-08-03 | A |
| DANIELS LESLIE B | Director | 43,477 | 2026-09-10 | S |
| Creede Frank | Officer | 43,221 | 2017-06-08 | S |
| Gerbrandt Ryan | Officer | 42,362 | 2025-07-12 | F |
| Gangeri Elaine | Officer | 36,646 | 2021-05-24 | S |
| Martin Heather | Officer | 34,807 | 2026-09-09 | F |
| Kuhn Thomas R. | Director | 27,731 | 2026-08-24 | M |
| Daskalakis Andrew | Director | 27,309 | 2016-08-10 | A |
| Lang Scott A. | Director · Officer | 26,470 | 2026-09-21 | S |
| Sidman Thomas J. | Officer | 24,880 | 2018-09-10 | P |
| SALEH PAUL N | Director | 24,175 | 2023-08-28 | A |
| OBRIEN MORGAN E | Director · Officer | 23,973 | 2024-12-16 | S |
| MCALLISTER SINGLETON B | Director | 21,599 | 2023-08-28 | A |
| YAZDI MAHVASH | Director | 21,005 | 2026-08-04 | A |
| Schiff Peter | Director | 18,000 | 2017-08-03 | A |
| Haller Greg | Director | 17,414 | 2023-08-28 | A |
| ALTMAN JEFFREY A | 10%+ Owner · Director | 17,014 | 2026-08-04 | A |
| Owl Creek Asset Management, L.P. | 10%+ Owner | 17,014 | 2026-08-04 | A |
| Ashe Gena L | Officer | 16,071 | 2026-09-08 | M |
| Hennessy Mark | Director | 15,881 | 2018-08-07 | P |
| Fleischhauer Mark | Director | 14,367 | 2026-08-04 | A |
| PRATT GREGORY A | Director | 13,939 | 2023-08-28 | A |
| Marquez Elena | Officer | 13,831 | 2026-10-09 | M |
| Frazier Harvey Leon | Officer | 13,364 | 2017-06-08 | S |
| AKERS THOMAS CLARK | Director | 11,895 | 2020-06-11 | S |
| Akhavan Hamid | Director · Officer | 10,706 | 2021-11-17 | P |
| Rohmann Richard E. | Officer | 5,472 | 2018-07-13 | S |
| Chong Rachelle B. | Director | 5,145 | 2019-08-06 | A |
| COMINOS GREG W | Director | 5,145 | 2019-08-06 | A |
| Heard William | Director | 3,965 | 2026-08-19 | G |
| Kerr Kimberly | Officer | 3,363 | 2026-06-22 | — |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-09 | Marquez Elena | Option exercise (derivative) | 1,227 | $0.00 | 1,227 |
| 2026-10-09 | Marquez Elena | Open-market sale | 1,017 | $80.22 | 12,814 |
| 2026-10-09 | Marquez Elena | Option exercise | 1,227 | $40.00 | 13,831 |
| 2026-10-09 | Marquez Elena | Open-market sale | 100 | $82.50 | 12,604 |
| 2026-10-09 | Marquez Elena | Open-market sale | 400 | $81.80 | 12,704 |
| 2026-10-09 | Marquez Elena | Open-market sale | 3,254 | $80.16 | 13,104 |
| 2026-10-05 | Marquez Elena | Tax withholding | 473 | $84.33 | 16,358 |
| 2026-09-29 | Marquez Elena | Tax withholding | 1,325 | $81.75 | 16,831 |
| 2026-09-21 | Lang Scott A. | Open-market sale | 15,000 | $80.00 | 26,470 |
| 2026-09-21 | Lang Scott A. | Open-market sale | 15,000 | $80.00 | 26,470 |
| 2026-09-10 | DANIELS LESLIE B | Open-market sale | 2,500 | $83.83 | 43,477 |
| 2026-09-10 | Martin Heather | Open-market sale | 8,064 | $84.20 | 26,743 |
| 2026-09-09 | Martin Heather | Tax withholding | 3,465 | $85.44 | 34,807 |
| 2026-09-08 | Ashe Gena L | Option exercise (derivative) | 6,833 | $0.00 | 35,658 |
| 2026-09-08 | Ashe Gena L | Tax withholding | 2,769 | $86.27 | 13,302 |
| 2026-09-08 | Ashe Gena L | Option exercise | 6,833 | $34.96 | 16,071 |
| 2026-09-08 | Ashe Gena L | Open-market sale | 293 | $85.44 | 9,238 |
| 2026-09-08 | Ashe Gena L | Open-market sale | 4,064 | $85.44 | 5,174 |
| 2026-09-08 | Ashe Gena L | Open-market sale | 293 | $85.44 | 9,238 |
| 2026-09-04 | DANIELS LESLIE B | Open-market sale | 1,200 | $86.50 | 45,977 |
| 2026-09-04 | DANIELS LESLIE B | Open-market sale | 2,900 | $87.31 | 47,177 |
| 2026-09-03 | DANIELS LESLIE B | Open-market sale | 6,000 | $87.15 | 50,077 |
| 2026-08-25 | Guttman-McCabe Christopher | Option exercise (derivative) | 40,000 | $0.00 | 0 |
| 2026-08-25 | Guttman-McCabe Christopher | Open-market sale | 2,696 | $90.61 | 44,876 |
| 2026-08-25 | Guttman-McCabe Christopher | Open-market sale | 7,580 | $91.69 | 47,572 |
| 2026-08-25 | Guttman-McCabe Christopher | Open-market sale | 7,791 | $92.77 | 55,152 |
| 2026-08-25 | Guttman-McCabe Christopher | Open-market sale | 5,372 | $93.59 | 62,943 |
| 2026-08-25 | Guttman-McCabe Christopher | Tax withholding | 16,561 | $90.38 | 68,315 |
| 2026-08-25 | Guttman-McCabe Christopher | Option exercise | 40,000 | $34.72 | 84,876 |
| 2026-08-24 | Kuhn Thomas R. | Option exercise (derivative) | 10,000 | $0.00 | 48,998 |
| 2026-08-24 | Kuhn Thomas R. | Open-market sale | 400 | $91.01 | 17,731 |
| 2026-08-24 | Kuhn Thomas R. | Open-market sale | 790 | $90.00 | 18,131 |
| 2026-08-24 | Kuhn Thomas R. | Open-market sale | 4,418 | $89.12 | 18,921 |
| 2026-08-24 | Kuhn Thomas R. | Open-market sale | 4,392 | $88.18 | 23,339 |
| 2026-08-24 | Kuhn Thomas R. | Option exercise | 10,000 | $33.62 | 27,731 |
| 2026-08-19 | Heard William | Gift | 5,400 | $0.00 | 3,965 |
| 2026-08-14 | Lang Scott A. | Open-market sale | 5,373 | $88.96 | 41,470 |
| 2026-08-14 | Lang Scott A. | Open-market sale | 18,797 | $90.16 | 46,843 |
| 2026-08-14 | Lang Scott A. | Open-market sale | 10,087 | $90.87 | 65,640 |
| 2026-08-14 | Lang Scott A. | Open-market sale | 800 | $91.69 | 75,727 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.