ATN International, Inc (ATNI) Ownership
ATNI ownership summary
as of October 18, 2026- Institutions
- 63.9% of shares outstanding
- Insiders
- 34.40% of shares outstanding
- Shares outstanding
- 15.4M
- Float
- 10.0M shares available to trade
- Short interest
- 4.14% 350K shares short
- Days to cover
- 4.19 short interest up 18.0% vs prior month
- Institutions 63.94%
- Insiders 34.40%
- Other investors 1.66%
ATNI top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Global Alpha Capital Management Ltd. | 9.38% | 1.4M | $37.2M | −12,702 (−0.9%) | June 30, 2026 |
| 2 | BlackRock Inc | 5.99% | 923K | $23.8M | +21,066 (+2.3%) | June 30, 2026 |
| 3 | Dimensional Fund Advisors, Inc. | 4.72% | 727K | $18.7M | −20,947 (−2.8%) | June 30, 2026 |
| 4 | Brown Brothers Harriman & Co | 4.30% | 663K | $17.1M | — | June 30, 2026 |
| 5 | American Century Companies Inc | 3.72% | 574K | $14.8M | +98,699 (+20.8%) | June 30, 2026 |
| 6 | Vanguard Capital Management, LLC | 2.69% | 414K | $10.7M | −8,126 (−1.9%) | June 30, 2026 |
| 7 | Acadian Asset Management LLC | 2.47% | 380K | $9.8M | +16,564 (+4.6%) | June 30, 2026 |
| 8 | D. E. Shaw & Co LP | 2.44% | 375K | $9.7M | +1,566 (+0.4%) | June 30, 2026 |
| 9 | Renaissance Technologies Corp | 2.08% | 321K | $8.3M | −16,803 (−5.0%) | June 30, 2026 |
| 10 | Morgan Stanley - Brokerage Accounts | 1.80% | 278K | $7.1M | −3,232 (−1.2%) | June 30, 2026 |
| 11 | Geode Capital Management, LLC | 1.76% | 271K | $7.0M | +18,577 (+7.4%) | June 30, 2026 |
| 12 | State Street Corp | 1.44% | 222K | $5.7M | −5,618 (−2.5%) | June 30, 2026 |
| 13 | Bridgeway Capital Management, LLC | 0.96% | 148K | $3.8M | — | June 30, 2026 |
| 14 | Ballast Asset Management, LP | 0.88% | 136K | $3.5M | −1,350 (−1.0%) | June 30, 2026 |
| 15 | FMR Inc | 0.82% | 127K | $3.3M | +19,792 (+18.5%) | June 30, 2026 |
| 16 | Bank of New York Mellon Corp | 0.81% | 125K | $3.2M | +2,813 (+2.3%) | June 30, 2026 |
| 17 | Northern Trust Corp | 0.74% | 114K | $2.9M | +30,463 (+36.4%) | June 30, 2026 |
| 18 | Gabelli Funds LLC | 0.71% | 110K | $2.8M | −6,773 (−5.8%) | June 30, 2026 |
| 19 | Vanguard Portfolio Management, LLC | 0.67% | 104K | $2.7M | +8,941 (+9.4%) | June 30, 2026 |
| 20 | Arrowstreet Capital Limited Partnership | 0.66% | 101K | $2.6M | −37,776 (−27.2%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 9 holders added 218K shares and 9 cut 113K.
ATNI top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | CC&L Global Alpha - Series A | 4.52% | 696K | $17.9M | — | July 31, 2026 |
| 2 | Avantis US Small Cap Value ETF | 3.68% | 567K | $14.6M | +696 (+0.1%) | September 30, 2026 |
| 3 | Vanguard MStar Total Stk Mkt Idx Invest | 1.90% | 292K | $7.5M | — | August 31, 2026 |
| 4 | iShares Russell 2000 ETF | 1.71% | 264K | $6.8M | −3,008 (−1.1%) | September 30, 2026 |
| 5 | DFA US Small Cap Value I | 0.80% | 123K | $3.2M | +9,543 (+8.4%) | August 31, 2026 |
| 6 | Fidelity Small Cap Index | 0.74% | 114K | $2.9M | +2,090 (+1.9%) | July 31, 2026 |
| 7 | Fidelity Enhanced Small Cap Core ETF | 0.71% | 109K | $2.8M | +228 (+0.2%) | September 30, 2026 |
| 8 | iShares Russell 2000 Value ETF | 0.62% | 96K | $2.5M | +144 (+0.2%) | September 30, 2026 |
| 9 | Ballast Small/Mid Cap ETF | 0.59% | 91K | $2.3M | — | September 30, 2026 |
| 10 | EA Bridgeway Omni Small-Cap Value ETF | 0.59% | 91K | $2.3M | — | September 30, 2026 |
| 11 | Dimensional US Small Cap Value ETF | 0.57% | 88K | $2.3M | — | September 24, 2026 |
| 12 | Eaton Vance Emerg & Frntr Countrs Eq I | 0.55% | 85K | $2.2M | — | August 31, 2026 |
| 13 | BSF Systematic US Eq Abs Ret A2 USD | 0.55% | 85K | $2.2M | +29,241 (+52.6%) | December 31, 2025 |
| 14 | Dimensional US Targeted Value ETF | 0.53% | 82K | $2.1M | +49 (+0.1%) | September 30, 2026 |
| 15 | WisdomTree US SmallCap Dividend ETF | 0.51% | 79K | $2.0M | — | September 30, 2026 |
| 16 | DFA US Targeted Value I | 0.47% | 73K | $1.9M | +4,463 (+6.6%) | August 31, 2026 |
| 17 | DFA US Small Cap I | 0.44% | 68K | $1.7M | — | August 31, 2026 |
| 18 | Gabelli Focused Gr and Inc A | 0.43% | 67K | $1.7M | −4,221 (−5.9%) | June 30, 2026 |
| 19 | AB Small Cap Core Z | 0.43% | 66K | $1.7M | +66,328 (0.0%) | August 31, 2026 |
| 20 | Vanguard Russell 2000 ETF | 0.38% | 59K | $1.5M | +927 (+1.6%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
ATNI insider transactions
latest 1| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2024-04-29 | Michael T Prior | Buy | $19.88 | 10,000 | $198,800 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
ATNI shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns ATNI
Institutional investors own 63.9% of ATN International's shares and insiders 34.40%. The largest holder is Global Alpha Capital Management Ltd. with 9.38% of the shares (1.4M), as of June 30, 2026. Among the top 20 institutions, 9 added shares and 9 reduced their stake in the latest filings. Short interest is 4.14% of the float, or 4.19 days of average trading volume. The share count fell 4.9% since 2014.
Related: ATNI analyst forecast, ATNI key metrics, ATNI dividend history. See the ATNI stock overview for the latest quote and news.
ATNI ownership FAQ
Who owns the most ATN International stock?
The largest shareholders of ATN International are Global Alpha Capital Management Ltd. (9.38%), BlackRock Inc (5.99%), Dimensional Fund Advisors, Inc. (4.72%), Brown Brothers Harriman & Co (4.30%), American Century Companies Inc (3.72%).
What percentage of ATN International is owned by institutions?
Institutions hold 63.9% of ATN International's shares outstanding; insiders hold 34.40%.
Which funds own ATN International?
The largest fund holders of ATN International are CC&L Global Alpha - Series A (4.52%), Avantis US Small Cap Value ETF (3.68%), Vanguard MStar Total Stk Mkt Idx Invest (1.90%), iShares Russell 2000 ETF (1.71%), DFA US Small Cap Value I (0.80%).
What is ATN International's short interest?
350K shares of ATN International were sold short, 4.14% of the float; at the average daily volume it would take 4.19 days to cover.
Are insiders buying or selling ATN International?
Of the latest 1 reported insider transactions in ATN International (since April 29, 2024), 1 were purchases and 0 were sales.
How many shares of ATN International are outstanding?
ATN International has 15.4M shares outstanding, of which 10.0M are in the public float.