Anterix Inc.
US ˙ NasdaqCM ˙ US03676C1009

SecurityATEX / Anterix Inc.
InstitutionMan Group plc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Man Group plc closes position in ATEX / Anterix Inc.

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 0 shares of Anterix Inc. (US:ATEX) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 100,145 shares of Anterix Inc.. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ANTERIX COM 03676C100 0 -100.00 0
2026-02-17 2025-12-31 13F ANTERIX COM 03676C100 100,145 24,431 32.27 2,186 34.52 0.0023
2025-11-14 2025-09-30 13F ANTERIX COM 03676C100 75,714 19,650 35.05 1,626 13.00 0.0028
2025-08-14 2025-06-30 13F ANTERIX COM 03676C100 56,064 31,849 131.53 1,438 62.30 0.0027
2025-05-15 2025-03-31 13F ANTERIX COM 03676C100 24,215 14,286 143.88 886 191.45 0.0022
2025-02-14 2024-12-31 13F ANTERIX COM 03676C100 9,929 1,358 15.84 305 -5.59 0.0008
2024-11-14 2024-09-30 13F ANTERIX COM 03676C100 8,571 8,571 323 0.0008
2023-02-14 2022-12-31 13F ANTERIX COM 03676C100 0 -7,374 -100.00 0 -100.00
2022-11-14 2022-09-30 13F ANTERIX COM 03676C100 7,374 263 -25.50 0.0012
2022-08-15 2022-06-30 13F ANTERIX COM 03676C100 353 0.0015
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.