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Of the 10 tracked institutions holding ATEX, 4 have a 3-year clone track record — 4 of them beat the S&P. Average holder's clone alpha: +4.1pt. It's a gauge of who owns the name, not just how many.
Among the 10 tracked institutional investors we monitor, ATEX (ANTERIX INC) is held with a combined value of $306.98M across 3,715,885 shares. The largest holder is BlackRock, Inc. with a position worth $110.67M. 2 funds opened new positions in the most recent quarter. 5 funds increased their holdings. 3 funds reduced their position.
Total Institutional Value
$306.98M
Total Shares Held
3,715,885
Institutional Holders
10
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $110.67M | 0.00% | +6.7% |
| 2 | PRICE T ROWE ASSOCIATES INC /MD/ | $77.25M | 0.01% | +9333.7% |
| 3 | STATE STREET CORP | $51.05M | 0.00% | +27.8% |
| 4 | FMR LLC | $38.13M | 0.00% | +173.8% |
| 5 | VANGUARD GROUP INC | $20.33M | 0.00% | -7.6% |
| 6 | WELLINGTON MANAGEMENT GROUP LLP | $3.19M | 0.00% | New |
| 7 | MILLENNIUM MANAGEMENT LLC | $3.12M | 0.00% | -90.1% |
| 8 | AQR CAPITAL MANAGEMENT LLC | $1.38M | 0.00% | +21.1% |
| 9 | CITADEL ADVISORS LLC | $927.90K | 0.00% | -94.4% |
| 10 | Gotham Asset Management, LLC | $912.77K | 0.00% | New |
SEC Schedule 13D (activist) and 13G (passive) filings for ATEX. Filed when an investor acquires 5%+ ownership.
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of ATEX with a position worth $110.67M, representing 0.00% of their portfolio. In total, 10 institutional investors hold ATEX with a combined value of $306.98M.
In the most recent quarter, 2 funds opened a new position in ATEX. Additionally, 5 increased their holdings and 3 reduced their positions.
Institutional investors hold $306.98M worth of ATEX stock across 10 positions. The largest institutional holder is BlackRock, Inc. with $110.67M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ATEX, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ATEX positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$76.77
2026-10-21
YTD
+245.3%
65% of 52-week range
