Transaction · 0002035875-26-000006

Heard William

Heard William, DIR, reported an open-market or private sale at Anterix Inc. involving 46400.000000 shares for an estimated $4181094.72. Reported holdings after the transaction were 1670338.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SDIR
ATEXAnterix Inc.
Filing timeAug 18
Trade dateAug 14, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$90.75
Pre-filing
1mo ago +16.1%1w ago +9.4%1d ago +0.8%
Returns since
7d +1.1%30d -1.3%90d -1.3%180d -1.3%1y -1.3%

ATEX price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
ATEX since 2026-08-18Filed 16 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0002035875-26-000006
Common Stock
Transaction date
Aug 14, 2026
Filed Aug 18, 2026, 09:38 PM · 4d delay
Shares
46.4k sh
$9.01k per share
Estimated value
-$418M
Computed from shares × price
Holdings after
1.67M sh
Indirect · By Heard Capital LLC

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Cluster Selling Large Sale
0score
Filing-only score

0

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

Officer NoDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.9942 to $90.115, inclusive. The Reporting Person undertakes to pr…

  2. F2

    These securities are held by certain investment funds and/or accounts for which Heard Capital LLC serves as investment manager. The Reporting Person is the ultimate beneficial owner of Heard Capital L…

Original filing · 0002035875-26-000006
Related transactions

0 other filings

Same reporting owner
Recent company activity

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