Security record · archived quarter
ATEX
Anterix Inc. · Communication Services · Telecommunications Services
56Tracked holders
0Δ holders
6.02MShares held
$131.47MReported value
+1New positions
−1Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +2.3% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 71 | +19 | 5.99M | $615.39M | +20 | −1 |
| Q1 2026 | 54 | -2 | 5.69M | $217.28M | +5 | −7 |
| Q4 2025 | 56 | 0 | 6.02M | $131.47M | +1 | −1 |
| Q3 2025 | 14 | +1 | 4.16M | $89.22M | +1 | — |
| Q2 2025 | 10 | -1 | 4.26M | $109.24M | — | −1 |
| Q1 2025 | 8 | -1 | 1.63M | $59.82M | — | −1 |
| Q4 2024 | 9 | +1 | 1.39M | $42.60M | +1 | — |
| Q3 2024 | 7 | -1 | 1.10M | $41.51M | — | −1 |
| Q2 2024 | 8 | — | 837.23K | $33.15M | — | — |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 1.02M | -1.3% | $22.23M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 1.02M | -1.3% | $22.23M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 1.02M | -1.3% | $22.23M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 1.02M | -1.3% | $22.23M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 1.02M | -1.3% | $22.23M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 1.02M | -1.3% | $22.23M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 1.02M | -1.3% | $22.23M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 1.02M | -1.3% | $22.23M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 1.02M | -1.3% | $22.23M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 1.02M | -1.3% | $22.23M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 11 | The Vanguard Group ✦ (passive) | 931.30K | -7.6% | $20.33M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 12 | The Vanguard Group ✦ (passive) | 931.30K | -7.6% | $20.33M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 13 | The Vanguard Group ✦ (passive) | 931.30K | -7.6% | $20.33M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 14 | Millennium Management ✦ | 439.95K | +1153.1% | $9.60M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 15 | GAMCO Investors ✦ | 422.47K | +32.0% | $9.22M | 0.1% | ▲ Add | 7 | SEC ↗ |
| 16 | Geode Capital Management ✦ (passive) | 360.14K | -0.3% | $7.86M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 17 | Geode Capital Management ✦ (passive) | 360.14K | -0.3% | $7.86M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 18 | State Street Global Advisors ✦ (passive) | 333.79K | +5.4% | $7.29M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 19 | Dimensional Fund Advisors Lp | 324.92K | — | $7.09M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | Dimensional Fund Advisors Lp | 324.92K | — | $7.09M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | Dimensional Fund Advisors Lp | 324.92K | — | $7.09M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | Dimensional Fund Advisors Lp | 324.92K | — | $7.09M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Marshall Wace ✦ | 291.25K | +1.6% | $6.36M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 24 | Jane Street Group, Llc | 159.01K | — | $3.47M | 0.0% | n/c | 1 | SEC ↗ |
| 25 | Jane Street Group, Llc | 159.01K | — | $3.47M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | Jane Street Group, Llc | 159.01K | — | $3.47M | 0.0% | n/c | 1 | SEC ↗ |
| 27 | Bank Of America Corp /De/ | 143.12K | — | $3.12M | 0.0% | n/c | 1 | SEC ↗ |
| 28 | Bank Of America Corp /De/ | 143.12K | — | $3.12M | 0.0% | n/c | 1 | SEC ↗ |
| 29 | Bank Of America Corp /De/ | 143.12K | — | $3.12M | 0.0% | n/c | 1 | SEC ↗ |
| 30 | Charles Schwab Investment… | 138.68K | — | $3.03M | 0.0% | n/c | 1 | SEC ↗ |
| 31 | Tudor Investment Corp Et Al | 124.94K | — | $2.73M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Qube Research & Technologies Ltd | 124.65K | — | $2.72M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Goldman Sachs Group ✦ | 124.63K | -23.8% | $2.72M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 34 | Goldman Sachs Group ✦ | 124.63K | -23.8% | $2.72M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 35 | Northern Trust Corp | 114.26K | — | $2.49M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Northern Trust Corp | 114.26K | — | $2.49M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Northern Trust Corp | 114.26K | — | $2.49M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Morgan Stanley ✦ | 109.44K | +51.1% | $2.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 39 | Morgan Stanley ✦ | 109.44K | +51.1% | $2.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 40 | Morgan Stanley ✦ | 109.44K | +51.1% | $2.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 109.44K | +51.1% | $2.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 109.44K | +51.1% | $2.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 43 | Morgan Stanley ✦ | 109.44K | +51.1% | $2.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 44 | Morgan Stanley ✦ | 109.44K | +51.1% | $2.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 45 | Citadel Advisors ✦ | 108.38K | -2.4% | $2.37M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 46 | Citadel Advisors ✦ | 108.38K | -2.4% | $2.37M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 47 | Man Group plc | 100.14K | — | $2.19M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Bank of New York Mellon Corp | 68.79K | — | $1.50M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Bank of New York Mellon Corp | 68.79K | — | $1.50M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Bank of New York Mellon Corp | 68.79K | — | $1.50M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Bank of New York Mellon Corp | 68.79K | — | $1.50M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | D. E. Shaw & Co. ✦ | 61.77K | -52.9% | $1.35M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 53 | D. E. Shaw & Co. ✦ | 61.77K | -52.9% | $1.35M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 54 | Nuveen, LLC | 53.16K | — | $1.16M | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Nuveen, LLC | 53.16K | — | $1.16M | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Nuveen, LLC | 53.16K | — | $1.16M | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Squarepoint Ops LLC | 53.12K | — | $1.16M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Fidelity (FMR) ✦ | 51.04K | -82.3% | $1.11M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 59 | Fidelity (FMR) ✦ | 51.04K | -82.3% | $1.11M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 60 | UBS Group AG | 48.79K | — | $1.07M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | UBS Group AG | 48.79K | — | $1.07M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Hrt Financial Lp | 43.09K | — | $940,000 | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Arrowstreet Capital ✦ | 33.40K | New | $729,144 | 0.0% | New | 1 | SEC ↗ |
| 64 | Creative Planning | 30.78K | — | $671,906 | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Susquehanna International Group, Llp | 28.74K | — | $627,460 | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Simplex Trading, Llc | 22.55K | — | $492,266 | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Barclays Plc | 18.79K | — | $410,164 | 0.0% | n/c | 1 | SEC ↗ |
| 68 | Barclays Plc | 18.79K | — | $410,164 | 0.0% | n/c | 1 | SEC ↗ |
| 69 | State Of Wisconsin Investment Board | 18.43K | — | $402,371 | 0.0% | n/c | 1 | SEC ↗ |
| 70 | Balyasny Asset Management L.P. | 17.74K | — | $387,264 | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Alliancebernstein L.P. | 15.43K | — | $336,837 | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Rhumbline Advisers | 14.92K | — | $325,651 | 0.0% | n/c | 1 | SEC ↗ |
| 73 | IMC-Chicago, LLC | 13.38K | — | $292,020 | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Wells Fargo & Company/Mn | 12.37K | — | $270,081 | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Wells Fargo & Company/Mn | 12.37K | — | $270,081 | 0.0% | n/c | 1 | SEC ↗ |
| 76 | Quantinno Capital Management LP | 9.49K | — | $207,101 | 0.0% | n/c | 1 | SEC ↗ |
| 77 | Group One Trading Llc | 6.17K | — | $134,800 | 0.0% | n/c | 1 | SEC ↗ |
| 78 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 5.21K | — | $113,822 | 0.0% | n/c | 1 | SEC ↗ |
| 79 | JPMorgan Chase ✦ | 4.67K | -53.2% | $102,012 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 80 | JPMorgan Chase ✦ | 4.67K | -53.2% | $102,012 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 81 | JPMorgan Chase ✦ | 4.67K | -53.2% | $102,012 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 82 | Toronto Dominion Bank | 4.30K | — | $93,869 | 0.0% | n/c | 1 | SEC ↗ |
| 83 | Deutsche Bank Ag\ | 4.29K | — | $93,629 | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Deutsche Bank Ag\ | 4.29K | — | $93,629 | 0.0% | n/c | 1 | SEC ↗ |
| 85 | New York State Common Retirement… | 2.71K | — | $59,137 | 0.0% | n/c | 1 | SEC ↗ |
| 86 | Legal & General Group Plc | 2.55K | — | $55,732 | 0.0% | n/c | 1 | SEC ↗ |
| 87 | Legal & General Group Plc | 2.55K | — | $55,732 | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Bnp Paribas Financial Markets | 2.49K | — | $54,379 | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Russell Investments Group, Ltd. | 1.28K | — | $28,030 | 0.0% | n/c | 1 | SEC ↗ |
| 90 | Russell Investments Group, Ltd. | 1.28K | — | $28,030 | 0.0% | n/c | 1 | SEC ↗ |
| 91 | Royal Bank Of Canada | 1.21K | — | $26,000 | 0.0% | n/c | 1 | SEC ↗ |
| 92 | Royal Bank Of Canada | 1.21K | — | $26,000 | 0.0% | n/c | 1 | SEC ↗ |
| 93 | Royal Bank Of Canada | 1.21K | — | $26,000 | 0.0% | n/c | 1 | SEC ↗ |
| 94 | California State Teachers… | 693 | — | $15,128 | 0.0% | n/c | 1 | SEC ↗ |
| 95 | Citigroup Inc | 628 | — | $13,710 | 0.0% | n/c | 1 | SEC ↗ |
| 96 | Citigroup Inc | 628 | — | $13,710 | 0.0% | n/c | 1 | SEC ↗ |
| 97 | Cwm, Llc | 322 | — | $7,000 | 0.0% | n/c | 1 | SEC ↗ |
| 98 | Pnc Financial Services Group, Inc. | 193 | — | $4,213 | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Osaic Holdings, Inc. | 167 | — | $3,645 | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Optiver Holding B.V. | 124 | — | $2,707 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Arrowstreet Capital | $729,144 | 0.0% |
Exited
| AQR Capital Management | $417,785 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 131 holders, 16.93M shares, $637.88M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 14
Heard William
Director · 46.40K sh · $4.18M
Aug 14
Lang Scott A.
Officer, Director · 800 sh · $73,352
Aug 14
Lang Scott A.
Officer, Director · 10.09K sh · $916,603
Aug 14
Lang Scott A.
Officer, Director · 18.80K sh · $1.69M
Aug 14
Lang Scott A.
Officer, Director · 5.37K sh · $478,006
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Jul 27
SC 13G — BlackRock, Inc.
Jul 08
SC 13G — T. Rowe Price Investment Management…
Jul 08
SC 13D/A — Owl Creek Asset Management, L.P.
27.7% of class · View original SEC filing ↗
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q4 2025 ·
Methodology ·
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