ATN INTL INC (ATNI): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in ATNI · Communication Services. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
12
13F filers
Aggregate Value
$29.9M
Across holders
Last Price
$30.94
2026-08-24
Sector
Communication Services
GICS
Quarterly fund activity8 increased4 reduced0 exited
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| SHAW D E & CO INC CIK 0001009207 | Hedge Fund | 375K | $9.9M | 33.2% | 0.0% | Added | $-611K | Q2 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 321K | $8.5M | 28.4% | 0.0% | Reduced | $-445K | Q2 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 0001164508 | Hedge Fund | 101K | $2.7M | 9.0% | 0.0% | Reduced | $-1.0M | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 98K | $2.6M | 8.7% | 0.0% | Added | +$1.6M | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 79K | $2.1M | 7.0% | 0.0% | Added | +$626K | Q2 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 44K | $1.2M | 3.9% | 0.0% | Added | +$1.1M | Q2 2026 |
| GAMCO INVESTORS, INC. ET AL CIK 0000807249 | Institutional Manager | 43K | $1.1M | 3.8% | 0.0% | Reduced | $-3K | Q2 2026 |
| Magnetar Financial LLC CIK 0001352851 | Hedge Fund | 22K | $592K | 2.0% | 0.0% | Added | — | Q2 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 14K | $367K | 1.2% | 0.0% | Reduced | $-134K | Q2 2026 |
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 11K | $300K | 1.0% | 0.0% | Added | +$85K | Q2 2026 |
Added
Hedge Fund
$9.9M· 33.2% of total· 0.0% port· 375K sh· $-611K QoQ· Q2 2026
Reduced
Hedge Fund
$8.5M· 28.4% of total· 0.0% port· 321K sh· $-445K QoQ· Q2 2026
Reduced
Hedge Fund
$2.7M· 9.0% of total· 0.0% port· 101K sh· $-1.0M QoQ· Q2 2026
Added
Hedge Fund
$2.6M· 8.7% of total· 0.0% port· 98K sh· +$1.6M QoQ· Q2 2026
Added
Hedge Fund
$2.1M· 7.0% of total· 0.0% port· 79K sh· +$626K QoQ· Q2 2026
Added
Hedge Fund
$1.2M· 3.9% of total· 0.0% port· 44K sh· +$1.1M QoQ· Q2 2026
Reduced
Institutional Manager
$1.1M· 3.8% of total· 0.0% port· 43K sh· $-3K QoQ· Q2 2026
Added
Hedge Fund
$592K· 2.0% of total· 0.0% port· 22K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$367K· 1.2% of total· 0.0% port· 14K sh· $-134K QoQ· Q2 2026
Added
Hedge Fund
$300K· 1.0% of total· 0.0% port· 11K sh· +$85K QoQ· Q2 2026
Added
Hedge Fund
$278K· 0.9% of total· 0.0% port· 11K sh· +$57K QoQ· Q2 2026
Added
Hedge Fund
$278K· 0.9% of total· 0.0% port· 10K sh· — QoQ· Q2 2026
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