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Of the 10 tracked institutions holding ATNI, 4 have a 3-year clone track record — 4 of them beat the S&P. Average holder's clone alpha: +5.1pt. It's a gauge of who owns the name, not just how many.
Among the 10 tracked institutional investors we monitor, ATNI (ATN INTL INC) is held with a combined value of $60.61M across 2,366,803 shares. The largest holder is BlackRock, Inc. with a position worth $24.46M. Magnetar Financial LLC opened a new position in the most recent quarter. 6 funds increased their holdings. 3 funds reduced their position.
Total Institutional Value
$60.61M
Total Shares Held
2,366,803
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. | $24.46M | 0.00% | +2.3% |
| 2 | VANGUARD GROUP INC | $13.29M | 0.00% | -1.0% |
| 3 | RENAISSANCE TECHNOLOGIES LLC | $8.50M | 0.01% | -5.0% |
| 4 | STATE STREET CORP | $5.94M | 0.00% | -2.5% |
| 5 | FMR LLC | $3.36M | 0.00% | +18.5% |
| 6 | CITADEL ADVISORS LLC | $2.61M | 0.00% | +155.2% |
| 7 | AQR CAPITAL MANAGEMENT LLC | $1.17M | 0.00% | +300.0% |
| 8 | Magnetar Financial LLC | $591.87K | 0.01% | New |
| 9 | PRICE T ROWE ASSOCIATES INC /MD/ | $386.00K | 0.00% | +8.4% |
| 10 | MILLENNIUM MANAGEMENT LLC | $300.48K | 0.00% | +39.7% |
SEC Schedule 13D (activist) and 13G (passive) filings for ATNI. Filed when an investor acquires 5%+ ownership.
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of ATNI with a position worth $24.46M, representing 0.00% of their portfolio. In total, 10 institutional investors hold ATNI with a combined value of $60.61M.
In the most recent quarter, 1 fund opened a new position in ATNI. Additionally, 6 increased their holdings and 3 reduced their positions.
Institutional investors hold $60.61M worth of ATNI stock across 10 positions. The largest institutional holder is BlackRock, Inc. with $24.46M 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 ATNI, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their ATNI 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
$25.36
2026-10-21
YTD
+14.1%
62% of 52-week range
