Anterix (ATEX)
Commercializes 900 MHz spectrum for utility private broadband networks.
$83.42
vs last close−1.82 (−2.14%)
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13F · 13D/G · Form 4
| Institutions | ≈ 98.74% | 19.36M shares | |
|---|---|---|---|
| 191 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 42.83% | 8.40M shares | |
| 16 holders · as of Sep 22, 2026 | |||
| Strategic holders | 5.93% | 1.16M shares | |
| 2 holders · as of Apr 10, 2023 | |||
| Adds to | 147.50% | ||
19.61M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 147.50%; nothing is left for Other.
13F, as of Jun 30, 2026
191 holders · 19.36M shares · 62 new positions · 108 increased · 47 reduced · 20 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Owl Creek Asset Management, L.P. | 5.41M | 27.60% | 0 | Aug 14, 2026 |
| T. Rowe Price Investment Management, Inc. | 2.35M | 11.97% | +2.35Mnew | Aug 14, 2026 |
| Heard Capital LLC | 1.72M | 8.75% | 0 | Aug 11, 2026 |
| BlackRock, Inc. | 1.08M | 5.48% | +68.0K | Aug 7, 2026 |
| Price T Rowe Associates Inc /MD/ | 750.5K | 3.83% | +742.5K | Aug 14, 2026 |
| Jupiter Topco LLC | 662.4K | 3.38% | +662.4Knew | Aug 14, 2026 |
| Vanguard Capital Management LLC | 553.0K | 2.82% | −20.8K | Aug 13, 2026 |
| Plustick Management LLC | 520.0K | 2.65% | +20.4K | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Jeffrey A. Altmanincl. Owl Creek Asset Management, L.P. | 28.50% | 5.55M | 13D | Jul 8, 2026 |
| T. Rowe Price Investment Management, Inc. | 12.00% | 2.35M | 13G | Jul 8, 2026 |
| Heard Investment Manager LLCincl. William Heard, William E. Heard Declaration of Trust +1 more | 9.40% | 1.74M | 13D | Mar 5, 2025 |
| BlackRock, Inc. | 5.10% | 999.3K | 13G | Jul 27, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Sep 21, 2026 | Scott A. Langdirector, officer: President and CEO | Sale | 15,000 | $80.00 | 26,470 |
| Sep 10, 2026 | Leslie B. Danielsdirector | Sale | 2,500 | $83.83 | 43,477 |
| Sep 10, 2026 | Heather Martinofficer, other: Chief Marketing Officer | Sale | 8,064 | $84.20 | 26,743 |
| Sep 4, 2026 | Leslie B. Danielsdirector | Sale · 2 lots | 4,100 | $87.07 | 45,977 |
| Sep 3, 2026 | Leslie B. Danielsdirector | Sale | 6,000 | $87.15 | 50,077 |
| Sep 8, 2026 | Gena L. Asheofficer: Chief Legal Officer & Corp Sec | Sale · 2 lots | 4,357 | $85.44 | 5,174 |
| Aug 25, 2026 | Christopher Guttman-McCabeofficer: Chief Reg & Comm Officer | Sale · 4 lots | 23,439 | $92.36 | 44,876 |
| Aug 24, 2026 | Thomas R. Kuhndirector, other: Executive Chairman | Sale · 4 lots | 10,000 | $88.85 | 17,731 |
| Jun 18, 2026 | Thomas R. Kuhndirector, other: Executive Chairman | Sale | 1,654 | $79.52 | 17,731 |
| Aug 14, 2026 | William Hearddirector | Sale | 46,400 | $90.11 | 1,670,338 |
House and Senate disclosures
Not reported.