Security record · archived quarter
ATEX
Anterix Inc. · Communication Services · Telecommunications Services
54Tracked holders
-2Δ holders
5.69MShares held
$217.28MReported value
+5New positions
−7Exits
Momentum inputs (comparable managers):
holder breadth -3.6% ·
share flow +0.5% ·
net new positions -3.7%
· formula
Concentrated accumulation: rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
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 | n/a |
| Q2 2025 | 10 | -1 | 4.26M | $109.24M | n/a | −1 |
| Q1 2025 | 8 | -1 | 1.63M | $59.82M | n/a | −1 |
| Q4 2024 | 9 | +1 | 1.39M | $42.60M | +1 | n/a |
| Q3 2024 | 7 | -1 | 1.10M | $41.51M | n/a | −1 |
| Q2 2024 | 8 | n/a | 837.23K | $33.15M | n/a | n/a |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 1.01M | -1.1% | $38.46M | 0.0% | ▼ Trim | 4 | SEC ↗ ×9 |
| 2 | Vanguard Capital Management Llc | 573.85K | n/a | $21.92M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | GAMCO Investors ✦ | 425.82K | +0.8% | $16.26M | 0.2% | ▲ Add | 8 | SEC ↗ |
| 4 | Dimensional Fund Advisors Lp | 424.86K | +30.8% | $16.22M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 5 | Jane Street Group, Llc | 420.86K | +164.7% | $16.07M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 6 | State Street Global Advisors ✦ (passive) | 387.92K | +16.2% | $14.81M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 7 | Geode Capital Management ✦ (passive) | 374.30K | +3.9% | $14.30M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 8 | Millennium Management ✦ | 307.92K | -30.0% | $11.76M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 9 | Hrt Financial Lp | 174.93K | +305.9% | $6.68M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | Bank Of America Corp /De/ | 167.78K | +17.2% | $6.41M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | Goldman Sachs Group ✦ | 161.79K | +29.8% | $6.18M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 12 | Citadel Advisors ✦ | 161.16K | +48.7% | $6.15M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 13 | Charles Schwab Investment… | 141.39K | +1.9% | $5.40M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | Fidelity (FMR) ✦ | 135.29K | +165.1% | $5.17M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 15 | Citigroup Inc | 119.86K | +18986.2% | $4.58M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 16 | Northern Trust Corp | 117.61K | +2.9% | $4.49M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 17 | Morgan Stanley ✦ | 102.66K | -6.2% | $3.92M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 18 | Bank of New York Mellon Corp | 67.84K | -1.4% | $2.59M | 0.0% | ▼ Trim | 2 | SEC ↗ ×4 |
| 19 | Squarepoint Ops LLC | 59.74K | +12.5% | $2.28M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 20 | UBS Group AG | 47.88K | -1.9% | $1.83M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 21 | Simplex Trading, Llc | 43.75K | +94.0% | $1.67M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 22 | Susquehanna International Group, Llp | 39.80K | +38.5% | $1.52M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | Creative Planning | 31.96K | +3.9% | $1.22M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 24 | IMC-Chicago, LLC | 30.36K | +127.0% | $1.16M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 25 | Nuveen, LLC | 22.88K | -57.0% | $873,596 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 26 | Quantinno Capital Management LP | 15.62K | +64.6% | $596,490 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 27 | Rhumbline Advisers | 14.12K | -5.4% | $539,043 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 28 | State Of Wisconsin Investment Board | 13.27K | -28.0% | $506,743 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 29 | AQR Capital Management ✦ | 11.10K | New | $423,909 | 0.0% | New | 1 | SEC ↗ ×4 |
| 30 | Deutsche Bank Ag\ | 9.44K | +120.2% | $360,666 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 31 | Toronto Dominion Bank | 9.10K | +111.6% | $347,529 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | T. Rowe Price ✦ | 7.96K | New | $304,000 | 0.0% | New | 1 | SEC ↗ |
| 33 | Alliancebernstein L.P. | 12.13K | -21.4% | $264,798 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 34 | American Century Companies Inc | 6.66K | New | $254,384 | 0.0% | New | 1 | SEC ↗ |
| 35 | Prudential Financial Inc | 6.46K | New | $246,593 | 0.0% | New | 1 | SEC ↗ |
| 36 | Wells Fargo & Company/Mn | 5.90K | -52.3% | $225,436 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 37 | D. E. Shaw & Co. ✦ | 5.70K | -90.8% | $217,530 | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 38 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 5.42K | +4.0% | $207,181 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 39 | JPMorgan Chase ✦ | 5.08K | +8.6% | $185,224 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 40 | Royal Bank Of Canada | 3.03K | +151.2% | $116,000 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 41 | New York State Common Retirement… | 2.71K | 0.0% | $103,457 | 0.0% | Held | 2 | SEC ↗ |
| 42 | Bnp Paribas Financial Markets | 2.48K | -0.6% | $94,597 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 43 | Legal & General Group Plc | 2.40K | -6.2% | $91,503 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 44 | Barclays Plc | 2.16K | -88.5% | $82,491 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 45 | Fifth Third Bancorp | 1.69K | New | $64,350 | 0.0% | New | 1 | SEC ↗ |
| 46 | Russell Investments Group, Ltd. | 1.13K | -11.7% | $43,307 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 47 | California State Teachers… | 609 | -12.1% | $23,258 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 48 | Cwm, Llc | 512 | +59.0% | $19,553 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 49 | Us Bancorp \De\ | 224 | +96.5% | $8,555 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 50 | Pnc Financial Services Group, Inc. | 211 | +9.3% | $8,058 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 51 | Osaic Holdings, Inc. | 192 | +15.0% | $7,330 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 52 | Optiver Holding B.V. | 100 | -19.4% | $3,819 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 53 | Federated Hermes, Inc. | 50 | +163.2% | $1,910 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 54 | UBS AM, a distinct business unit of… | 13 | 0.0% | $496 | 0.0% | Held | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| AQR Capital Management | $423,909 | 0.0% |
| T. Rowe Price | $304,000 | 0.0% |
| American Century Companies Inc | $254,384 | 0.0% |
| Prudential Financial Inc | $246,593 | 0.0% |
| Fifth Third Bancorp | $64,350 | 0.0% |
Exited
| Marshall Wace | $6.36M | was 0.0% |
| Tudor Investment Corp Et Al | $2.73M | was 0.0% |
| Qube Research & Technologies… | $2.72M | was 0.0% |
| Man Group plc | $2.19M | was 0.0% |
| Arrowstreet Capital | $729,144 | was 0.0% |
| Balyasny Asset Management L.P. | $387,264 | was 0.0% |
| Group One Trading Llc | $134,800 | 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)
Oct 09
Marquez Elena
Officer · 400 sh · $32,720
Oct 09
Marquez Elena
Officer · 3.25K sh · $260,849
Oct 09
Marquez Elena
Officer · 210 sh · $17,199
Oct 09
Marquez Elena
Officer · 1.02K sh · $81,589
Oct 09
Marquez Elena
Officer · 100 sh · $8,250
Sep 21
Lang Scott A.
Officer, Director · 15.00K sh · $1.20M
Sep 10
DANIELS LESLIE B
Director · 2.50K sh · $209,575
Sep 10
Martin Heather
Officer · 8.06K sh · $678,998
Sep 08
Ashe Gena L
Officer · 4.06K sh · $347,228
Sep 08
Ashe Gena L
Officer · 293 sh · $25,034
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: Q1 2026 ·
Methodology ·
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