ATEX Anterix Inc.

NASDAQ
$77.42

Anterix Inc. (ATEX) Hedge Fund Activity

This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.

Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.

Hedge fund breadth
+18.18
13 buyers / 9 sellers
BUYING
Funds compared
23
funds with comparable ATEX positions
19 current holders · 13 prior-quarter holders
Net share change
-497.4K
+163.9K added, -661.3K cut
Position activity
10 new 3 increased 5 reduced 4 exited

Most significant moves

Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.

Fund Action Shares changed Change Est. value Portfolio wt. Score
Balyasny Asset Management L.P. New +3.3K — $335.0K 0.0% 57
TWO SIGMA INVESTMENTS, LP Quant New +3.7K — $382.5K 0.0% 57
Squarepoint Ops LLC Quant Sold Out -59.7K -100.0% $6.1M 0.0% 57
MARSHALL WACE, LLP Long/Short New +3.8K — $386.7K 0.0% 56
Caxton Associates Macro New +13.4K — $1.4M 0.0% 55
Gotham Asset Management, LLC Quant Value New +8.9K — $912.8K 0.0% 54
CITADEL ADVISORS LLC Quant Reduced -152.1K -94.4% $15.7M 0.0% 54
D. E. Shaw & Co., Inc. Quant Increased +87.3K +1532.5% $9.0M 0.0% 54
Schonfeld Strategic Advisors Long/Short Quant Sold Out -23.2K -100.0% $2.4M 0.0% 53
MILLENNIUM MANAGEMENT LLC Reduced -277.6K -90.1% $28.6M 0.0% 53

Most significant buyers

By move score, not size.

  • Balyasny Asset Management L.P. New · +3.3K
  • TWO SIGMA INVESTMENTS, LP New · +3.7K
  • MARSHALL WACE, LLP New · +3.8K
  • Caxton Associates New · +13.4K
  • Gotham Asset Management, LLC New · +8.9K

Most significant sellers

By move score, not size.

  • Squarepoint Ops LLC Sold Out · -59.7K
  • CITADEL ADVISORS LLC Reduced · -152.1K
  • Schonfeld Strategic Advisors Sold Out · -23.2K
  • MILLENNIUM MANAGEMENT LLC Reduced · -277.6K
  • ExodusPoint Capital Management Sold Out · -8.8K

Hedge fund positions

Fund Tier Shares Previous Change Change % Portfolio wt. Action Score
Balyasny Asset Management L.P. 2 3.3K 0 +3.3K — 0.0% New 57
TWO SIGMA INVESTMENTS, LP 2 3.7K 0 +3.7K — 0.0% New 57
Squarepoint Ops LLC 2 0 59.7K -59.7K -100.0% 0.0% Sold Out 57
MARSHALL WACE, LLP 2 3.8K 0 +3.8K — 0.0% New 56
Caxton Associates 3 13.4K 0 +13.4K — 0.0% New 55
Gotham Asset Management, LLC 2 8.9K 0 +8.9K — 0.0% New 54
CITADEL ADVISORS LLC 1 9.0K 161.2K -152.1K -94.4% 0.0% Reduced 54
D. E. Shaw & Co., Inc. 1 93.0K 5.7K +87.3K +1532.5% 0.0% Increased 54
Schonfeld Strategic Advisors 3 0 23.2K -23.2K -100.0% 0.0% Sold Out 53
MILLENNIUM MANAGEMENT LLC 2 30.3K 307.9K -277.6K -90.1% 0.0% Reduced 53
LMR Partners 3 2.0K 0 +2.0K — 0.0% New 53
Caption Management 3 17.5K 0 +17.5K — 0.1% New 52
ExodusPoint Capital Management 3 0 8.8K -8.8K -100.0% 0.0% Sold Out 52
Walleye Capital 3 148 0 +148 — 0.0% New 51
J. Goldman & Co. 3 0 9.0K -9.0K -100.0% 0.0% Sold Out 50
Brevan Howard Capital Management 3 4.0K 0 +4.0K — 0.0% New 49
Aquatic Capital Management 4 4.3K 0 +4.3K — 0.0% New 48
CenterBook Partners 4 6.9K 127.7K -120.8K -94.6% 0.0% Reduced 47
Quantbot Technologies 4 155 8.6K -8.5K -98.2% 0.0% Reduced 39
Trexquant Investment 3 53.4K 40.2K +13.2K +33.0% 0.0% Increased 30
AQR Capital Management 3 13.4K 11.1K +2.3K +21.1% 0.0% Increased 25
Quadrature Capital 3 13.0K 14.5K -1.5K -10.5% 0.0% Reduced 24
Heard Capital 2 1.7M 1.7M 0 +0.0% 7.6% Unchanged 42

Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Hedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.