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ATEX · Anterix Inc.
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ATEX Anterix (ATEX) Insider Trading, Ownership & Congress Trades

Telecom · Telephone communications (no radiotelephone) · CIK 0001304492
Quote by TradingView
Form 144 · 7
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
104
13F, latest reported quarter
Conversions, 180 days
15
Codes C/M, not in net · $12.5M priced

What the filings say about ATEX

Insiders, 180 days
-$34.5M net sold
10 sellers · 14% of sales under a 10b5-1 plan
Planned sales (Form 144), 90 days
$8.9M
7 notices

Anterix insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, Anterix Inc. insiders sold a net $34.5M of stock across 121 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-29.

Insider
Filed
Shares
Value
Since filing
Marquez Elena
Chief Financial Officer
SELL
2026-10-13 SECtraded 2026-10-09
3,254
$260.8K
+5.6%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 sale), the last on Jun 17, 2026.
  • The trade is 24.8% of the 13,104 shares held after it.
  • 3 other insiders sold within 30 days.
  • 104 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Financial Officer Marquez Elena sold about $260.8K of ATEX under a 10b5-1 plan on Oct 9, 2026; 3 other insiders sold within 30 days and 104 funds added in the latest 13F quarter.
Marquez Elena
Chief Financial Officer
SELL
2026-10-13 SECtraded 2026-10-09
400
$32.7K
+5.6%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 sale), the last on Jun 17, 2026.
  • The trade is 3.1% of the 12,704 shares held after it.
  • 3 other insiders sold within 30 days.
  • 104 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Financial Officer Marquez Elena sold about $32.7K of ATEX under a 10b5-1 plan on Oct 9, 2026; 3 other insiders sold within 30 days and 104 funds added in the latest 13F quarter.
Marquez Elena
Chief Financial Officer
SELL
2026-10-13 SECtraded 2026-10-09
100
$8.2K
+5.6%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 sale), the last on Jun 17, 2026.
  • The trade is 0.8% of the 12,604 shares held after it.
  • 3 other insiders sold within 30 days.
  • 104 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Financial Officer Marquez Elena sold about $8.2K of ATEX under a 10b5-1 plan on Oct 9, 2026; 3 other insiders sold within 30 days and 104 funds added in the latest 13F quarter.
Marquez Elena
Chief Financial Officer
SELL
2026-10-13 SECtraded 2026-10-09
1,017
$81.6K
+5.6%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 sale), the last on Jun 17, 2026.
  • The trade is 7.9% of the 12,814 shares held after it.
  • 3 other insiders sold within 30 days.
  • 104 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Financial Officer Marquez Elena sold about $81.6K of ATEX under a 10b5-1 plan on Oct 9, 2026; 3 other insiders sold within 30 days and 104 funds added in the latest 13F quarter.
Marquez Elena
Chief Financial Officer
SELL
2026-10-13 SECtraded 2026-10-09
210
$17.2K
+5.6%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 sale), the last on Jun 17, 2026.
  • The trade is 1.7% of the 12,604 shares held after it.
  • 3 other insiders sold within 30 days.
  • 104 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Financial Officer Marquez Elena sold about $17.2K of ATEX under a 10b5-1 plan on Oct 9, 2026; 3 other insiders sold within 30 days and 104 funds added in the latest 13F quarter.
121 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
See all insider buying · insider selling
Showing the latest few. to see 116 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$34.5M over 180 days
-$14.1M over 90 days
below 97% of Telecom
Congress
no House purchase disclosed in the last 12 months
Funds
104 funds bought in last quarter
more than 57% of Telecom
Revenue
+7.8% year over year
more than 63% of Telecom
Margin
1394.2% net margin
the highest in Telecom
Buybacks
$990.0K repurchased, FY to 2026-03-31
below 93% of Telecom
Short interest
12.1% of the float short (float per yahoo 2026-10-28) · 6.1 days to cover · settled 2026-10-15
more than 89% of Telecom
What changed in the last 30 days
Oct 13Chief Financial Officer Marquez Elena sold $400.6K under a 10b5-1 plan (Oct 9)
Why it matters
A 10b5-1 plan schedules trades months ahead, so this says little about what the insider thinks today.
Oct 9Officer ELENA MARQUEZ filed to sell $400.6K by Oct 9 (Form 144)
Why it matters
A Form 144 is a notice of intent to sell; the sale may not happen, and it says nothing about the price.

Watch ATEX

A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.

The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+347.6%12M
-8%+145%+298%+451%2025-102025-122026-022026-042026-062026-082026-10 2026-08-14 · Heard William sold $4.2M2026-06-15 · Guttman-McCabe Christopher sold $2.9M2026-06-15 · Guttman-McCabe Christopher sold $2.8M2026-06-15 · Guttman-McCabe Christopher sold $2.2M2026-06-15 · Guttman-McCabe Christopher sold $1.8M2026-06-15 · Guttman-McCabe Christopher sold $1.7M2026-06-15 · Guttman-McCabe Christopher sold $1.7M2026-08-14 · Lang Scott A. sold $1.7M2026-06-15 · Guttman-McCabe Christopher sold $1.4M2026-09-21 · Lang Scott A. sold $1.2M2026-06-15 · Guttman-McCabe Christopher sold $1.1M2026-06-15 · Ashe Gena L sold $1.1M2026-06-15 · Guttman-McCabe Christopher sold $918.6K2026-08-14 · Lang Scott A. sold $916.6K2026-08-25 · Guttman-McCabe Christopher sold $722.8K2026-08-25 · Guttman-McCabe Christopher sold $695.0K2026-09-10 · Martin Heather sold $679.0K2026-06-15 · Guttman-McCabe Christopher sold $654.5K2026-06-16 · YAZDI MAHVASH sold $560.0K2026-09-03 · DANIELS LESLIE B sold $522.9K2026-08-25 · Guttman-McCabe Christopher sold $502.7K2026-08-14 · Lang Scott A. sold $478.0K2026-06-15 · Guttman-McCabe Christopher sold $400.0K2026-08-24 · Kuhn Thomas R. sold $393.7K2026-08-24 · Kuhn Thomas R. sold $387.3K2026-06-15 · Ashe Gena L sold $356.2K2026-09-08 · Ashe Gena L sold $347.2K2026-06-17 · Marquez Elena sold $341.1K2026-06-15 · Fleischhauer Mark sold $279.4K2026-10-09 · Marquez Elena sold $260.8K2026-09-04 · DANIELS LESLIE B sold $253.2K2026-08-25 · Guttman-McCabe Christopher sold $244.3K2026-09-10 · DANIELS LESLIE B sold $209.6K2025-11-18 · Ashe Gena L sold $138.3K2026-06-18 · Kuhn Thomas R. sold $131.5K2026-09-04 · DANIELS LESLIE B sold $103.8K2026-10-09 · Marquez Elena sold $81.6K2026-08-14 · Lang Scott A. sold $73.4K2026-08-24 · Kuhn Thomas R. sold $71.1K2025-12-08 · Lang Scott A. bought $50.0K2026-08-24 · Kuhn Thomas R. sold $36.4K2026-10-09 · Marquez Elena sold $32.7K2026-10-09 · ELENA MARQUEZ filed to sell $400.6K2026-09-21 · SCOTT LANG filed to sell $1.2M2026-09-10 · HEATHER MARTIN filed to sell $679.0K2026-09-08 · GENA L ASHE filed to sell $372.3K2026-08-25 · CHRISTOPHER GUTTMAN-MCCABE filed to sell $2.2M2026-08-24 · THOMAS KUHN filed to sell $888.5K2026-08-14 · SCOTT LANG filed to sell $3.2M
Insider buyInsider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns ATEX: institutional holders (13F)

13F holdings, latest reported quarter
Owl Creek Asset Management, L.P.
5,411,776 sh
$557.1M
Heard Capital LLC
1,716,738 sh
$176.7M
BlackRock, Inc.
1,075,115 sh
$110.7M
Jupiter Topco LLC
662,415 sh
$68.2M
VANGUARD CAPITAL MANAGEMENT LLC
553,002 sh
$56.9M

Congress trades in ATEX

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

ATEX planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
ELENA MARQUEZ
Filed 2026-10-09
$400.6K
SCOTT LANG
Filed 2026-09-21
$1.2M
HEATHER MARTIN
Filed 2026-09-10
$679.0K
GENA L ASHE
Filed 2026-09-08
$372.3K
CHRISTOPHER GUTTMAN-MCCABE
Filed 2026-08-25
$2.2M

ATEX mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
Gabelli Global Content & Connectivity Fund
$7.2M position · as of 2026-06-30
8.8%
Keeley Small Cap Fund
$5.1M position · as of 2026-06-30
3.5%
State Street(R) SPDR(R) S&P(R) Telecom ETF
$22.7M position · as of 2026-06-30
3.2%
Kirr, Marbach Partners Value Fund
$3.0M position · as of 2026-06-30
2.6%
Invesco Dorsey Wright Technology Momentum ETF
$15.0M position · as of 2026-07-31
2.6%
Select Telecommunications Portfolio
$6.2M position · as of 2026-05-31
2.4%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $34.5M sold by insiders over 180 days, 104 funds added last quarter, $8.9M in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector by SEC SIC code
TMUSCXDOCCOISHENSPOKGSATSPIRVSATTTGTIRDMCALXKVHI

ATEX financials

Revenue growth
+7.8%
XBRL, annual
Net margin
1394.2%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$7.0M
four quarters, 2025-07-01 to 2026-06-30
Net margin, TTM
+933.0%
net income over revenue, 2025-07-01 to 2026-06-30
Free cash flow, TTM
$10.6M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Debt to equity
n/a
no debt line filed
Cash flow to debt
n/a
no debt line filed
Return on equity
+27.9%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets
+15.3%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on invested capital
n/a
no debt line filed
Return on capital employed
+18.0%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
P/E, trailing
25.13x
close 2026-10-28 over four quarters of diluted EPS, 2025-07-01 to 2026-06-30
Enterprise value
n/a
no debt line filed
FCF yield
+0.6%
TTM free cash flow over market value at close 2026-10-28
PEG, trailing
0.20x
P/E over trailing EPS growth of 123%: four quarters to 2026-06-30 against the four to 2025-06-30
Price as of 2026-10-28. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2026-032025-032024-032023-03
Revenue$6.5M$6.0M$4.2M$1.9M
Operating income$93.9M-$11.7M-$10.1M-$16.5M
Net income$90.6M-$11.4M-$9.1K-$16.3M
EPS (diluted)4.83-0.61-0.49-0.87
Operating cash flow$5.5M-$29.3M$42.0M-$27.2M
Cash$98.5M$47.4M$60.6M$43.2M
Buybacks$990.0K$8.4M$24.7M$8.2M
SEC XBRL, fiscal years, as known on 2026-10-29

ATEX Stock Sonar score 5/7 axes

Find similar shapesCompare

ATEX ranks highest on profitability (89th percentile) and growth (63rd), and lowest on insider conviction (3rd), among Telecom peers.

ProfitGrowthInsidersInstitutionsRisk
Profitability
89
Inputs
  • Return on equity+27.9% · 88 pct, universe of 3,862
  • Return on assets+15.3% · 88 pct, sector of 43
  • Return on invested capitalno debt line filed
  • Return on capital employed+18.0% · 91 pct, sector of 35
Growth
63
Inputs
  • Revenue growth, YoY+7.8% · 63 pct, sector of 47
  • Backlog growth, YoYno backlog line filed, or no year-earlier backlog
Insider conviction
3
Inputs
  • Net Form 4 buying (codes P and S), 180d-$32.9M · 6 pct, sector of 32
  • Insider buyers, 180d0 · 0 pct, sector of 32
Institutional and government
40
Inputs
  • Funds adding, latest quarter104 · 57 pct, sector of 54
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quarters$150K · 23 pct, universe of 1,062
Risk and compliance
49
Inputs
  • Short interest, % of float+12.1% · 15 pct, sector of 73
  • Recalls per $1B revenue, 3yrevenue under $50M or not filed, so a count cannot be scaled to size
  • EPA cases per $1B revenue, 5yrevenue under $50M or not filed, so a count cannot be scaled to size
  • New text in Risk Factors, latest 10-K+8.6% · 83 pct, sector of 36
2 not measured: Financial health, US patents
  • Financial health needs 1 of 2 inputs, 0 present: no debt line filed
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

5 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

ATEX filings, in plain words

Are Anterix insiders buying or selling ATEX?

In the 180 days to 2026-10-29, Anterix insiders were net sellers, a net $34.5M across purchases and sales reported on Form 4, by 10 sellers.

Are there planned insider sales of ATEX?

Yes. 7 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-29, covering $8.9M of stock; the latest, by ELENA MARQUEZ, was filed 2026-10-09.

Read the full summary

In the 180 days to 2026-10-29, Anterix insiders were net sellers of ATEX, a net $34.5M across purchases and sales reported on Form 4 by 10 sellers. 14% of the 44 insider sales were made under a Rule 10b5-1 plan; the rest were not flagged as planned. Insiders filed 7 Form 144 notices of intent to sell in the 90 days to 2026-10-29, covering $8.9M of stock. Each figure is counted from SEC and House filings as of 2026-10-29, dated the day the filing was made public.

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