Anterix
ATEX
135 hedge funds and large institutions have $647M invested in Anterix in 2026 Q1 according to their latest regulatory filings, with 40 funds opening new positions, 46 increasing their positions, 27 reducing their positions, and 20 closing their positions.
517% more call options, than puts
Call options by funds: $39.8M | Put options by funds: $6.45M
142% more capital inflows, than outflows
Capital inflows: $114M | Capital outflows: $47M
100% more funds holding in top 10
Funds holding in top 10: 4 → 8 (+4)
100% more first-time investments, than exits
New positions opened: 40 | Existing positions closed: 20
70% more repeat investments, than reductions
Existing positions increased: 46 | Existing positions reduced: 27
14% more funds holding
Funds holding: 118 → 135 (+17)
3.89% more ownership
Funds ownership: 86.64% → 90.53% (+3.9%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Plustick Management
Charlottesville,
Virginia
|
+$15.8M |
| 2 |
Jane Street
New York
|
+$8.29M |
| 3 |
PCR
Potrero Capital Research
San Francisco,
California
|
+$7.26M |
| 4 |
DG Capital Management
New York
|
+$4.65M |
| 5 |
PC
Panoramic Capital
Larkspur,
California
|
+$4.27M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jefferies Financial Group
New York
|
-$9.9M |
| 2 |
Marshall Wace
London,
United Kingdom
|
-$6.36M |
| 3 |
Millennium Management
New York
|
-$4.18M |
| 4 |
Tudor Investment Corp
Stamford,
Connecticut
|
-$2.73M |
| 5 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
-$2.72M |
ATEX Hedge Fund Activity: Q1 2026 in Review
135 of the 8,225 institutional investors tracked by Wall St. Rank reported a position in Anterix (ATEX) for Q1 2026, worth a combined $647M — up 83% from $354M a quarter earlier.
Buyers outnumbered sellers: 40 funds opened new ATEX positions and 20 closed out — a net gain of 20 holders — while 46 added to existing stakes and 27 trimmed.
The largest buyer was Plustick Management, opening a new position worth an estimated $15.8M. The largest seller was Jefferies Financial Group, exiting entirely with an estimated $9.9M sold.
- 135 institutional investors held Anterix (ATEX) as of Q1 2026, up from 118 in Q4 2025.
- Funds reported $647M of Anterix stock for Q1 2026, up 83% quarter-over-quarter.
- 40 funds opened new Anterix positions in Q1 2026 and 20 closed out, a net change of +20 holders.
- The largest Anterix buyer in Q1 2026 was Plustick Management, an estimated $15.8M added.
- The largest Anterix seller in Q1 2026 was Jefferies Financial Group, an estimated $9.9M sold.
Based on aggregated 13F filings for Q1 2026.