Security key
00215F107
ATN International, Inc. - Common Stock, par value $.01 per share (ATNI)
CUSIP: 00215F107
Q3 2026 13F Holders as of 30 Sep 2026
- Security type / class
- Equity / Common Stock, par value $.01 per share
- Total 13F shares
- 839
- Total 13F value
- $23,341
- Share change
- +531
- SEC-reported price per share
- $27.82
- Number of holders
- 3
- Value change
- +$14,773
- Number of buys
- 3
- Shares outstanding
- 15,403,079
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2026
Institutions
3
Top holders
3
ATNI full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q2 2026
ATN International, Inc. SEC filings
ATN International, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 00215F107
Recent filing periods:
Ownership snapshot
Top reported holders of ATNI - ATN International, Inc. - Common Stock, par value $.01 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Cornelius B. Prior Jr.
Disclosed value leader
Cornelius B. Prior Jr.
Comparable rows
15/15
Latest evidence
31 Aug 2026
13D/G
13F
3/4/5
Lead comparable stake: 28%
13D/G row: Cornelius B. Prior Jr.
Showing 1-6 of 15 holder rows.
Quick read
Cornelius B. Prior Jr. leads the comparable SEC ownership view at 28%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Cornelius B. Prior Jr.'s linked filing trail.
Comparable ownership
Top 5
Cornelius B. Prior Jr.
28%
Global Alpha Capital Management Ltd.
10%
BlackRock, Inc.
4.9%
DIMENSIONAL FUND ADVISORS LP
4.9%
Pamela F. Lenehan
0.26%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Cornelius B. Prior Jr. |
13D/G
|
28%
|
$133,346,751
4,342,128 shares
|
-$3,447,566 | 10 Aug 2026 |
| Global Alpha Capital Management Ltd. |
13F
13D/G
Company
|
10%
from 13D/G
|
$38,259,401
1,444,296 shares
|
— | 30 Jun 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
4.9%
from 13D/G
|
$24,457,035
923,255 shares
|
— | 30 Jun 2026 |
| DIMENSIONAL FUND ADVISORS LP |
13D/G
13F
Company
|
4.9%
|
$20,369,876
748,312 shares
|
-$2,687,703 | 31 Mar 2026 |
| Pamela F. Lenehan |
3/4/5
Director
|
0.26%
|
$1,077,530
39,586 shares
|
— | 16 Jun 2026 |
| Bernard J. Bulkin |
3/4/5
Director
|
0.24%
|
$1,013,046
37,217 shares
|
— | 16 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
3
Shares
839
Rows available
3
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2026 vs Q2 2026 Across Filers
Q2 2026 holders
133
Q3 2026 holders
3
Holder diff
-130
| Investor | Q2 2026 Shares | Q3 2026 Shares | Share Diff | Share Chg % | Q2 2026 value | Q3 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend