Anterix Inc. (ATEX) Insider Trading

Over the last 3 months, ATEX insiders made 0 open-market buys and 10 sales, a net sale of -$10.2M (SEC Form 4). Over the last 6 months, 87 institutions increased and 69 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
10
Net (3m)
-$10.2M
Insider trades by month Buys Sells
Apr
Aug
Sep
Nov
Dec
Jun
Context3-month price +169.5%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Jun 22, 2026Lang Scott A.director, officer: President and CEOSell170$80.25
Jun 18, 2026Marquez Elenaofficer: Chief Financial OfficerSell4,291$79.50
Jun 18, 2026Marquez Elenaofficer: Chief Financial OfficerOption1,226$40.00
Jun 17, 2026Ashe Gena Lofficer: Chief Legal Officer & Corp SecSell4,336$82.14
Jun 17, 2026Ashe Gena Lofficer: Chief Legal Officer & Corp SecSell13,375$81.04
Jun 17, 2026Ashe Gena Lofficer: Chief Legal Officer & Corp SecTax10,996$82.50
Jun 17, 2026Lang Scott A.director, officer: President and CEOTax39,621$82.50
Jun 17, 2026Ashe Gena Lofficer: Chief Legal Officer & Corp SecOption18,368$49.39
Jun 17, 2026Guttman-McCabe Christopherofficer: Chief Reg & Comm OfficerSell16,381$83.72
Jun 17, 2026Lang Scott A.director, officer: President and CEOOption74,530$34.96
Jun 17, 2026Guttman-McCabe Christopherofficer: Chief Reg & Comm OfficerOption20,000$37.42
Jun 17, 2026Guttman-McCabe Christopherofficer: Chief Reg & Comm OfficerOption25,511$49.39
Jun 17, 2026Guttman-McCabe Christopherofficer: Chief Reg & Comm OfficerOption50,876$34.40
Jun 17, 2026Guttman-McCabe Christopherofficer: Chief Reg & Comm OfficerSell35,321$81.32
Jun 17, 2026Guttman-McCabe Christopherofficer: Chief Reg & Comm OfficerSell13,324$84.29
Jun 17, 2026Guttman-McCabe Christopherofficer: Chief Reg & Comm OfficerOption6,715$42.14
Jun 17, 2026Ashe Gena Lofficer: Chief Legal Officer & Corp SecOption11,000$34.96
Jun 17, 2026YAZDI MAHVASHdirectorSell7,000$80.00
Jun 17, 2026Lang Scott A.director, officer: President and CEOOption63,788$30.99
Jun 17, 2026Lang Scott A.director, officer: President and CEOTax48,470$82.50
Jun 17, 2026Guttman-McCabe Christopherofficer: Chief Reg & Comm OfficerSell26,411$82.27
Jun 17, 2026Guttman-McCabe Christopherofficer: Chief Reg & Comm OfficerOption8,000$32.50
Jun 17, 2026Guttman-McCabe Christopherofficer: Chief Reg & Comm OfficerOption11,750$25.75
Jun 17, 2026Ashe Gena Lofficer: Chief Legal Officer & Corp SecTax4,661$82.50
Jun 17, 2026Fleischhauer MarkdirectorSell3,500$79.83
May 26, 2026Ashe Gena Lofficer: Chief Legal Officer & Corp SecTax2,501$60.00
May 22, 2026Martin Heatherofficer, other: Chief Marketing OfficerGrant17,453$60.90
May 22, 2026Martin Heatherofficer, other: Chief Marketing OfficerGrant3,694—
May 22, 2026Marquez Elenaofficer: Chief Financial OfficerGrant3,694—
May 22, 2026Ashe Gena Lofficer: Chief Legal Officer & Corp SecGrant3,694—

Source: ATEX SEC Form 4 filings, latest Jun 22, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their ATEX positions over the last 6 months (SEC Form 13F).

Increased
87
New positions
60
Reduced
69
Sold out
39
Largest moves
InstitutionActionSharesFiled
OWL CREEK ASSET MANAGEMENT, L.P.Unchanged5.4MFeb 17, 2026
OWL CREEK ASSET MANAGEMENT, L.P.Unchanged5.4MMay 15, 2026
HEARD CAPITAL LLCUnchanged1.7MMay 15, 2026
HEARD CAPITAL LLCUnchanged1.7MFeb 17, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position1.1MMay 15, 2026
BLACKROCK, INC.Reduced1.0MFeb 12, 2026
BLACKROCK, INC.Reduced1.0MMay 13, 2026
VANGUARD GROUP INCReduced931KJan 29, 2026
QVT FINANCIAL LPUnchanged504KMay 15, 2026
QVT FINANCIAL LPUnchanged504KFeb 13, 2026
PLUSTICK MANAGEMENT LLCNew Position500KMay 15, 2026
JANE STREET GROUP, LLCIncreased459KMay 12, 2026
JEFFERIES FINANCIAL GROUP INC.New Position455KFeb 9, 2026
MILLENNIUM MANAGEMENT LLCIncreased440KFeb 17, 2026
GAMCO INVESTORS, INC. ET ALIncreased426KMay 14, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.

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