ANTERIX INC ATEX
COM · Common Stock · CUSIP 03676C100
- SectorCommunication
- IndustryTelephone Communications (No Radiotelephone)
- HeadquartersWoodland Park, NJ
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 18.6m as of 2024-06-21, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $39.59. Options: 4 managers hold calls ($1.2m notional), 6 hold puts ($4.2m).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 100 |
| Q4 2022 | 93 |
| Q1 2023 | 89 |
| Q2 2023 | 96 |
| Q3 2023 | 99 |
| Q4 2023 | 94 |
| Q1 2024 | 99 |
| Q2 2024 | 116 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 40 | 39 |
| Q1 2023 | 41 | 29 |
| Q2 2023 | 53 | 29 |
| Q3 2023 | 41 | 55 |
| Q4 2023 | 43 | 46 |
| Q1 2024 | 38 | 47 |
| Q2 2024 | 64 | 42 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $5.8m | $1.6m | 0.28 |
| Q4 2023 | $1.5m | $419.2k | 0.28 |
| Q1 2024 | $1.5m | $94.1k | 0.06 |
| Q2 2024 | $1.2m | $4.2m | 3.38 |
Biggest buyers
| CITADEL ADVISORS LLC | Added | +98.9k |
| Jefferies Financial Group Inc. | Added | +86.3k |
| ExodusPoint Capital Management, LP | New | +56.3k |
| MARSHALL WACE, LLP | Added | +41.9k |
| JANE STREET GROUP, LLC | Added | +38.7k |
| SG Americas Securities, LLC | New | +38.4k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | +36.5k |
| Trexquant Investment LP | Added | +36.3k |
| Heard Capital LLC | Added | +36.3k |
| GOLDMAN SACHS GROUP INC | Added | +35.4k |
Biggest sellers
| MORGAN STANLEY | Reduced | -890.1k |
| VANGUARD GROUP INC | Reduced | -37.5k |
| STONEHILL CAPITAL MANAGEMENT LLC | Reduced | -37.1k |
| Roubaix Capital, LLC | Reduced | -31.9k |
| BANK OF AMERICA CORP /DE/ | Reduced | -25.5k |
| CenterBook Partners LP | Sold out | -25.1k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -19.0k |
| BlackRock Inc. | Reduced | -15.6k |
| SIMPLEX TRADING, LLC | Sold out | -13.7k |
| SHERBROOKE PARK ADVISERS LLC | Sold out | -11.5k |
Biggest calls
| JANE STREET GROUP, LLC | Added | $574.1k14.5k shares |
| CITADEL ADVISORS LLC | Added | $526.5k13.3k shares |
| SIMPLEX TRADING, LLC | Added | $134.0k3.4k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| WOLVERINE TRADING, LLC | New | $1.8m45.0k shares |
| Caption Management, LLC | New | $989.8k25.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $835.3k21.1k shares |
| CITADEL ADVISORS LLC | Added | $550.3k13.9k shares |
| SIMPLEX TRADING, LLC | New | $15.0k400 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Owl Creek Asset Management, L.P. 13D · may seek influence filed 2026-07-08 | 28.5% |
| T. Rowe Price Investment Management, Inc. 13G · institution new · filed 2026-07-08 | 12.0% |
Heard Capital LLC
13D · may seek influence
filed 2025-03-05
Stated purposeItem 4 is hereby amended to add the following: On February 28, 2025, Mr. Heard elected to begin receiving stock compensation under the Issuer's non-employee director compensation program. Full filing |
9.4% |
Fell to 5% or below in the last year: BlackRock, Inc. (4.7%, 2026-10-27), VANGUARD GROUP INC (5.0%, 2026-01-30), DG Capital Management, LLC (4.0%, 2025-11-12)
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2022 | 1 | $3.7k | 0 | — | — |
| Q4 2022 | 0 | — | 2 | $345.5k | — |
| Q1 2023 | 2 | $77.8k | 1 | $1.4m | — |
| Q2 2023 | 0 | — | 1 | $251.2k | — |
| Q3 2023 | 1 | $29.9k | 0 | — | — |
| Q4 2023 | 1 | $4.1m | 1 | $30.0k | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 1 | $1.6m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-05-03 | Gray Timothy Chief Financial Officer | Sold | $537.6k16.7k shares |
| 2024-05-02 | Gray Timothy Chief Financial Officer | Sold | $531.8k16.7k shares |
| 2024-05-01 | Gray Timothy Chief Financial Officer | Sold | $535.0k16.7k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| Owl Creek Asset Management, L.P. 38.40% of their portfolio | 5.4m $214.3m | Unchanged |
| Heard Capital LLC 4.28% of their portfolio | 1.8m $70.2m | Added +36.3k |
| BlackRock Inc. 0.00% of their portfolio | 1.1m $44.0m | Reduced -15.6k |
| VANGUARD GROUP INC 0.00% of their portfolio | 838.5k $33.2m | Reduced -37.5k |
| STONEHILL CAPITAL MANAGEMENT LLC 20.86% of their portfolio | 704.4k $27.9m | Reduced -37.1k |
| QVT Financial LP 1.88% of their portfolio | 503.9k $20.0m | Unchanged |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 392.6k $15.5m | Reduced -19.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 363.7k $14.4m | Added +4.5k |
| STATE STREET CORP 0.00% of their portfolio | 360.2k $14.3m | Reduced -4.9k |
| Clearbridge Investments, LLC 0.01% of their portfolio | 311.7k $12.3m | Reduced -6.3k |
| Price Jennifer C. 11.06% of their portfolio | 240.0k $9.5m | Reduced -10.0k |
| GARNET EQUITY CAPITAL HOLDINGS, INC. 6.34% of their portfolio | 208.7k $8.3m | Added +20.0k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 167.5k $6.6m | Added +98.9k |
| TUDOR INVESTMENT CORP ET AL 0.07% of their portfolio | 167.2k $6.6m | Added +29.3k |
| Roubaix Capital, LLC 3.67% of their portfolio | 146.6k $5.8m | Reduced -31.9k |
| FMR LLC 0.00% of their portfolio | 142.3k $5.6m | Reduced -5.5k |
| GABELLI FUNDS LLC 0.04% of their portfolio | 140.4k $5.6m | Added +6.3k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 137.8k $5.5m | Reduced -3.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 136.4k $5.4m | Reduced -713 |
| MORGAN STANLEY 0.00% of their portfolio | 111.8k $4.4m | Reduced -890.1k |
| GAMCO INVESTORS, INC. ET AL 0.05% of their portfolio | 109.3k $4.3m | Added +16.0k |
| Jefferies Financial Group Inc. 0.08% of their portfolio | 100.0k $4.0m | Added +86.3k |
| KIRR MARBACH & CO LLC /IN/ 0.92% of their portfolio | 96.8k $3.8m | Reduced -45 |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 77.9k $3.1m | Added +10.3k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 71.9k $2.8m | Reduced -25.5k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 65.5k $2.6m | Added +35.4k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 58.7k $2.3m | Added +41.9k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 57.8k $2.3m | Added +38.7k |
| ExodusPoint Capital Management, LP 0.02% of their portfolio | 56.3k $2.2m | New |
| Teton Advisors, Inc. 0.88% of their portfolio | 53.0k $2.1m | Unchanged |
| 272 Capital LP 1.04% of their portfolio | 52.3k $2.1m | Reduced -9.4k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 50.6k $2.0m | Added +3.8k |
| Trexquant Investment LP 0.03% of their portfolio | 47.0k $1.9m | Added +36.3k |
| SG Americas Securities, LLC 0.01% of their portfolio | 38.4k $1.5m | New |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 36.5k $1.4m | New |
| HRT FINANCIAL LP 0.01% of their portfolio | 34.3k $1.4m | New |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 34.1k $1.4m | Unchanged |
| WOODMONT INVESTMENT COUNSEL LLC 0.11% of their portfolio | 33.7k $1.3m | Added +1.5k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 33.7k $1.3m | New |
| LUMINUS MANAGEMENT LLC 0.76% of their portfolio | 29.3k $1.2m | New |
| BOOTHBAY FUND MANAGEMENT, LLC 0.03% of their portfolio | 28.3k $1.1m | Reduced -4.2k |
| Squarepoint Ops LLC 0.00% of their portfolio | 26.3k $1.0m | Added +1.2k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 24.5k $968.9k | Added +10.8k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 23.5k $929.6k | Added +12.1k |
| Swiss National Bank 0.00% of their portfolio | 21.9k $865.0k | Reduced -4.4k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 21.0k $829.9k | Added +4.8k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 20.3k $802.9k | Added +48 |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 15.7k $620.5k | Added +4.1k |
| Virtu Financial LLC 0.04% of their portfolio | 15.3k $604.0k | New |
| Nebula Research & Development LLC 0.09% of their portfolio | 14.1k $560.0k | New |
| Engineers Gate Manager LP 0.01% of their portfolio | 14.1k $558.7k | Added +6.5k |
| Legal & General Group Plc 0.00% of their portfolio | 12.7k $501.5k | Reduced -934 |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 11.1k $440.6k | Unchanged |
| NJ State Employees Deferred Compensation Plan 0.05% of their portfolio | 11.0k $435.5k | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 11.0k $433.8k | Reduced -2.2k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 10.8k $426.7k | Added +1.6k |
| Aureus Asset Management, LLC 0.03% of their portfolio | 9.9k $393.1k | Unchanged |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 9.3k $369.0k | Reduced -611 |
| Cubist Systematic Strategies, LLC 0.01% of their portfolio | 9.2k $362.3k | New |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 8.7k $342.5k | New |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.00% of their portfolio | 8.5k $336.5k | New |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 7.9k $311.3k | Reduced -4.9k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 7.8k $308.4k | Reduced -1.2k |
| UBS Group AG 0.00% of their portfolio | 7.8k $307.7k | Reduced -6.9k |
| LPL Financial LLC 0.00% of their portfolio | 7.6k $302.7k | Added +875 |
| Y-Intercept (Hong Kong) Ltd 0.02% of their portfolio | 7.6k $302.1k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 7.5k $296.8k | Added +745 |
| GUGGENHEIM CAPITAL LLC 0.00% of their portfolio | 7.2k $285.1k | New |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 7.0k $276.8k | Added +544 |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 6.9k $275.0k | Added +4.7k |
| Corebridge Financial, Inc. 0.00% of their portfolio | 6.8k $268.7k | First filing |
| Creative Planning 0.00% of their portfolio | 6.6k $260.9k | Reduced -236 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 6.5k $257.7k | First filing |
| EntryPoint Capital, LLC 0.12% of their portfolio | 6.4k $252.1k | New |
| Corton Capital Inc. 0.12% of their portfolio | 5.9k $232.4k | New |
| Verition Fund Management LLC 0.00% of their portfolio | 5.4k $214.8k | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 5.4k $214.1k | Added +4 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 5.2k $207.4k | New |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 5.1k $203.0k | New |
| JUPITER ASSET MANAGEMENT LTD 0.00% of their portfolio | 5.1k $200.2k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 4.9k $194.5k | Added +270 |
| Caption Management, LLC 0.02% of their portfolio | 4.5k $178.2k | New |
| BARCLAYS PLC 0.00% of their portfolio | 4.5k $177.6k | Reduced -7.2k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 3.9k $154.0k | Reduced -6.8k |
| CITIGROUP INC 0.00% of their portfolio | 2.8k $111.4k | Added +559 |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 2.6k $104.9k | Unchanged |
| Point72 Asia (Singapore) Pte. Ltd. 0.02% of their portfolio | 2.3k $91.6k | New |
| PenderFund Capital Management Ltd. 0.03% of their portfolio | 2.0k $108.3k | Reduced -300 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 1.4k $55.0k | Added +116 |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.3k $51.1k | Unchanged |
| Aquatic Capital Management LLC 0.00% of their portfolio | 1.1k $43.5k | New |
| MOTCO 0.00% of their portfolio | 1.1k $43.1k | Reduced -220 |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 974 $39.0k | Unchanged |
| Allspring Global Investments Holdings, LLC 0.00% of their portfolio | 718 $28.4k | New |
| CWM, LLC 0.00% of their portfolio | 672 $27.0k | Added +9 |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 521 $20.6k | Reduced -40 |
| QUADRANT CAPITAL GROUP LLC 0.00% of their portfolio | 491 $19.4k | Unchanged |
| Point72 (DIFC) Ltd 0.00% of their portfolio | 488 $19.3k | New |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 464 $18.4k | Added +18 |
| AMALGAMATED BANK 0.00% of their portfolio | 436 $17.0k | Unchanged |