Anterix
ATEX • NASDAQ
Anterix is a telecommunications services company in the communication services sector on NASDAQ, led by Scott A. Lang, with a market cap of $430.5M. As of Q3 2025, 85% of shares are held by 109 institutional investors, with Owl Creek Asset Management, L.P. as the largest holder at 28.88%.
President and Chief Executive OfficerScott A. Lang
Market Cap$430.5M
Telecommunications Services
Communication Services
Employees86.0
Websiteanterix.com
Country
United States of America
Overview
Overview of institutional ownership in ATEX as of Q3 2025 with a market cap of $402.3M
All Institutions
- Institutions
- 109
- Value Held
- $340.3M
- Shares Held
- 15.9M
- Avg Position
- $3.1M
- Median Position
- $309.3K
Hedge Funds
- Hedge Funds
- 24
- Value Held
- $209.2M
- Shares Held
- 9.7M
- Avg Position
- $8.7M
- Median Position
- $960.2K
Ownership Breakdown
Based on market cap of $402.3M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in ATEX as of Q3 2025
| Institution | Position Value |
|---|---|
O Owl Creek Asset Management, L.P. Hedge Fund•Multi-Strategy | $116.2M 13.19% of portfolio |
 Heard Capital LLC Hedge Fund•Long/Short | $36.9M 1.79% of portfolio |
B BlackRock, Inc. Institution | $22.2M 0.00% of portfolio |
 VANGUARD GROUP INC Institution | $21.6M 0.00% of portfolio |
 DG Capital Management, LLC Hedge Fund•Multi-Strategy | $16.0M 10.41% of portfolio |
 QVT Financial LP Hedge Fund•Multi-Strategy | $10.8M 1.24% of portfolio |
G GARNET EQUITY CAPITAL HOLDINGS, INC. Hedge Fund•Long/Short | $8.5M 3.74% of portfolio |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | $7.8M 0.00% of portfolio |
G GAMCO INVESTORS, INC. ET AL Institution | $6.9M 0.07% of portfolio |
 STATE STREET CORP Institution | $6.8M 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for ATEX in Q3 2025
- Traded
- −$21.0M
- Buyers
- 57
- Sellers
- 64
- Total Bought
- +$16.6M
- Total Sold
- −$37.7M
- Avg Position
- $2.5M
Biggest Buyers
| Institution | Net Bought |
|---|---|
 GABELLI FUNDS LLC Long Only Manager | +$2.1M +98.1K shares |
 Marshall Wace LLP Institution | +$2.1M +97.6K shares |
 GOLDMAN SACHS GROUP INC Institution | +$1.6M +74.6K shares |
H HRT FINANCIAL LLC Institution | +$1.3M +62.1K shares |
G GAMCO INVESTORS, INC. ET AL Institution | +$1.0M +46.6K shares |
 GSA CAPITAL PARTNERS LLP Hedge Fund•Quant | +$970.4K +45.2K shares |
 Creative Planning RIA/Wealth | +$938.1K +43.7K shares |
J JANE STREET GROUP, LLC Institution | +$907.8K +42.3K shares |
 GABELLI SECURITIES INC Hedge Fund•Multi-Strategy | +$769.7K +35.9K shares |
 Atom Investors LP Hedge Fund•Market Neutral | +$600.9K +28.0K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
 Clearbridge Investments, LLC Long Only Manager | −$5.2M −203.5K shares |
N Nuveen, LLC Institution | −$3.7M −174.0K shares |
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | −$3.5M −161.7K shares |
DG Capital Management, LLC Hedge Fund•Multi-Strategy | −$2.4M −113.5K shares |
B BlackRock, Inc. Institution | −$2.3M −108.7K shares |
 MORGAN STANLEY RIA/Wealth | −$2.3M −106.4K shares |
D D. E. Shaw & Co., Inc. Institution | −$2.2M −101.3K shares |
S SCOGGIN LLC Hedge Fund•Event Driven | −$1.6M −75.0K shares |
 BANK OF AMERICA CORP /DE/ Institution | −$1.5M −72.0K shares |
 UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager | −$932.4K −36.3K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited ATEX in Q3 2025
- New Positions
- 14
- New Value
- $2.5M
- Exited Positions
- 25
- Exited Value
- $11.1M
New Positions
| Institution | Position Value |
|---|---|
Atom Investors LP Hedge Fund•Market Neutral | $600.9K 28.0K shares |
P Proficio Capital Partners LLC Family Office | $587.0K 27.3K shares |
 Sandia Investment Management LP Hedge Fund•Event Driven | $587.0K 27.3K shares |
S Skopos Labs, Inc. RIA/Wealth | $375.9K 17.5K shares |
 FourThought Financial Partners, LLC RIA/Wealth | $309.3K 14.4K shares |
 Virtus ETF Advisers LLC Long Only Manager | $75.1K 3.5K shares |
O Optiver Holding B.V. Institution | $2.7K 124.0 shares |
 Hartland & Co., LLC RIA/Wealth | $2.2K 103.0 shares |
 PRINCIPAL SECURITIES, INC. RIA/Wealth | $623.0 29.0 shares |
R Ronald Blue Trust, Inc. Institution | $580.0 27.0 shares |
Exited Positions
| Institution | Previous Position |
|---|---|
Clearbridge Investments, LLC Long Only Manager | $5.2M 203.5K shares |
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager | $932.4K 36.3K shares |
 Magnetar Financial LLC Hedge Fund•Multi-Strategy | $663.3K 25.9K shares |
 LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC Long Only Manager | $515.5K 20.1K shares |
S Swiss National Bank Institution | $509.2K 19.9K shares |
S SG Americas Securities, LLC Institution | $465.3K 18.1K shares |
$416.8K 16.3K shares | |
 CWM Advisors, LLC ETF Provider | $388.8K 15.2K shares |
 ARP AMERICAS LLC Hedge Fund•Multi-Strategy | $356.5K 13.9K shares |
 Verition Fund Management LLC Hedge Fund•Multi-Strategy | $351.8K 13.7K shares |
Options Activity
Institutions with the largest Call and Put options positions in ATEX as of Q3 2025
- Call Positions
- 6
- Call Value
- $444.4K
- Put Positions
- 3
- Put Value
- $2.7M
Call Positions
| Institution | Position Value |
|---|---|
J JANE STREET GROUP, LLC Institution | $289.8K 135.0 contracts |
 Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy | $154.6K 72.0 contracts |
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | - - contracts |
 Walleye Trading LLC RIA/Wealth | - - contracts |
DG Capital Management, LLC Hedge Fund•Multi-Strategy | - - contracts |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | - - contracts |
Put Positions
| Institution | Position Value |
|---|---|
W WOLVERINE TRADING, LLC Institution | $2.6M 1.2K contracts |
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy | $55.8K 26.0 contracts |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | - - contracts |
Most Committed Institutions
Institutions with ATEX as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
O Owl Creek Asset Management, L.P. Hedge Fund•Multi-Strategy | 13.19% $116.2M |
DG Capital Management, LLC Hedge Fund•Multi-Strategy | 10.41% $16.0M |
G GARNET EQUITY CAPITAL HOLDINGS, INC. Hedge Fund•Long/Short | 3.74% $8.5M |
A AYAL Capital Advisors Ltd Institution | 2.59% $4.5M |
Sandia Investment Management LP Hedge Fund•Event Driven | 1.99% $587.0K |
S SCOGGIN LLC Hedge Fund•Event Driven | 1.93% $4.8M |
Heard Capital LLC Hedge Fund•Long/Short | 1.79% $36.9M |
QVT Financial LP Hedge Fund•Multi-Strategy | 1.24% $10.8M |
 KIRR MARBACH & CO LLC /IN/ Long Only Manager | 0.38% $2.1M |
GABELLI SECURITIES INC Hedge Fund•Multi-Strategy | 0.18% $1.1M |
Hedge Fund Spotlight
Discover hedge funds investing in ATEX
Heard Capital LLC
Hedge Fund • Long/Short
Portfolio ManagerWilliam Ellak Heard
- Portfolio Value
- $2.1B
- Positions
- 21
- Last Reported
- Q3 2025
Sector Allocation
Position in Anterix
- Market Value
- $36.9M
- Shares Held
- 1.7M
- Portfolio Weight
- 1.79%
- Owned Since
- 2020-Q4
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Software - Application Technology | $223.8M | 10.86% | |
Semiconductors Technology | $212.3M | 10.30% | |
Aerospace & Defense Industrials | $206.6M | 10.02% |
