Anterix
ATEX
118 hedge funds and large institutions have $354M invested in Anterix in 2025 Q4 according to their latest regulatory filings, with 25 funds opening new positions, 37 increasing their positions, 42 reducing their positions, and 19 closing their positions.
33% more funds holding in top 10
Funds holding in top 10: 3 → 4 (+1)
32% more first-time investments, than exits
New positions opened: 25 | Existing positions closed: 19
5% more funds holding
Funds holding: 112 → 118 (+6)
1.31% more ownership
Funds ownership: 85.33% → 86.64% (+1.3%)
12% less repeat investments, than reductions
Existing positions increased: 37 | Existing positions reduced: 42
42% less capital inflows, than outflows
Capital inflows: $43.1M | Capital outflows: $74.8M
75% less call options, than puts
Call options by funds: $851K | Put options by funds: $3.38M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jefferies Financial Group
New York
|
+$9.44M |
| 2 |
Millennium Management
New York
|
+$8.41M |
| 3 |
Jane Street
New York
|
+$2.42M |
| 4 |
GAMCO Investors
Greenwich,
Connecticut
|
+$2.13M |
| 5 |
AYAL Capital Advisors
Toronto,
Ontario, Canada
|
+$1.16M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SBI Securities
Tokyo,
Japan
|
-$37.7M |
| 2 |
DG Capital Management
New York
|
-$15M |
| 3 |
Fidelity Investments
Boston,
Massachusetts
|
-$4.92M |
| 4 |
SM
Scoggin Management
New York
|
-$4.83M |
| 5 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
-$1.64M |
ATEX Hedge Fund Activity: Q4 2025 in Review
118 of the 8,300 institutional investors tracked by Wall St. Rank reported a position in Anterix (ATEX) for Q4 2025, worth a combined $354M — down 6.7% from $379M a quarter earlier.
Buyers outnumbered sellers: 25 funds opened new ATEX positions and 19 closed out — a net gain of 6 holders — while 37 added to existing stakes and 42 trimmed.
The largest buyer was Jefferies Financial Group, opening a new position worth an estimated $9.44M. The largest seller was SBI Securities, exiting entirely with an estimated $37.7M sold.
- 118 institutional investors held Anterix (ATEX) as of Q4 2025, up from 112 in Q3 2025.
- Funds reported $354M of Anterix stock for Q4 2025, down 6.7% quarter-over-quarter.
- 25 funds opened new Anterix positions in Q4 2025 and 19 closed out, a net change of +6 holders.
- The largest Anterix buyer in Q4 2025 was Jefferies Financial Group, an estimated $9.44M added.
- The largest Anterix seller in Q4 2025 was SBI Securities, an estimated $37.7M sold.
Based on aggregated 13F filings for Q4 2025.