Mario Gabelli's ATEX Position Overview
Mario Gabelli (via Gamco Investors, Inc. Et Al) currently holds 425,820 shares of Anterix Inc. (ATEX) worth $16.26 M, representing 0.16% of the portfolio. First purchased in 2021-Q4, this medium-term investment has been held for 18 quarters.
Based on 13F filings, Mario Gabelli has maintained a strategic position in ATEX, demonstrating sustained confidence in this investment. Largest addition occurred in Q4 2025, adding 102,400 shares. Largest reduction occurred in Q3 2024, reducing 7,500 shares.
Analysis based on 13F filings available since 2013 Q2
Mario Gabelli's Anterix (ATEX) Holding Value Over Time
Track share changes against reported price movement
Quarterly Anterix (ATEX) Trades by Mario Gabelli
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +3,350 | Add 0.79% | 425,820 | $38.19 |
| Q4 2025 | +102,400 | Add 31.99% | 422,470 | $21.83 |
| Q3 2025 | +46,645 | Add 17.06% | 320,070 | $21.47 |
| Q2 2025 | +70,855 | Add 34.98% | 273,425 | $25.65 |
| Q1 2025 | +54,300 | Add 36.62% | 202,570 | $36.60 |
| Q4 2024 | +46,500 | Add 45.69% | 148,270 | $30.67 |
| Q3 2024 | -7,500 | Reduce 6.86% | 101,770 | $37.66 |
| Q2 2024 | +15,975 | Add 17.12% | 109,270 | $39.59 |
| Q1 2024 | +18,195 | Add 24.23% | 93,295 | $33.61 |
| Q4 2023 | +7,000 | Add 10.28% | 75,100 | $33.32 |
| Q3 2023 | +10,600 | Add 18.43% | 68,100 | $31.38 |
| Q2 2023 | +24,900 | Add 76.38% | 57,500 | $31.69 |
| Q1 2023 | +2,300 | Add 7.59% | 32,600 | $33.04 |
| Q4 2022 | +20,800 | Add 218.95% | 30,300 | $32.17 |
| Q3 2022 | +820 | Add 9.45% | 9,500 | $35.68 |
| Q2 2022 | +2,080 | Add 31.52% | 8,680 | $41.01 |
| Q1 2022 | +1,600 | Add 32.00% | 6,600 | $57.88 |
| Q4 2021 | +5,000 | New Buy | 5,000 | $58.80 |
Mario Gabelli's Anterix Investment FAQs
Mario Gabelli first purchased Anterix Inc. (ATEX) in Q4 2021, acquiring 5,000 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mario Gabelli has held Anterix Inc. (ATEX) for 18 quarters since Q4 2021.
Mario Gabelli's largest addition to Anterix Inc. (ATEX) was in Q4 2025, adding 422,470 shares worth $9.22 M.
According to the latest 13F filing for Q1 2026, Mario Gabelli's firm, Gamco Investors, Inc. Et Al, owns 425,820 shares of Anterix Inc. (ATEX), valued at approximately $16.26 M.
As of the Q1 2026 filing, Anterix Inc. (ATEX) represents approximately 0.16% of Mario Gabelli's publicly disclosed stock portfolio, making it one of their key holdings.
Mario Gabelli's peak holding in Anterix Inc. (ATEX) was 425,820 shares, as reported at the end of Q1 2026.