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ATN International (ATNI) large shareholder sells 5,000 shares, keeps big stake

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

ATN International, Inc. ten percent owner Prior Cornelius B Jr reported indirect open-market sales of 5,000 shares of common stock on June 29. The trades, executed through VI E-Cell Tropical Telecom Ltd, were priced between $27.52 and $27.86 per share. He continues to report substantial holdings, including 3,994,303 shares held directly and 363,424 shares held as trustee of a revocable trust, plus additional smaller indirect positions.

Positive

  • None.

Negative

  • None.

Insights

Insider makes modest open-market sales while retaining large stake.

Ten percent owner Prior Cornelius B Jr reported selling 5,000 ATN International common shares in open-market transactions via VI E-Cell Tropical Telecom Ltd at prices around $27.52–$27.86. These are discretionary sales, not option exercises or tax-related events.

After these trades, he still reports a large position with 3,994,303 shares held directly and significant indirect holdings through a revocable trust and related entities. The sales are small relative to the disclosed overall ownership in this filing, suggesting a routine portfolio adjustment rather than a major change in commitment.

Insider PRIOR CORNELIUS B JR
Role null
Sold 5,000 shs ($138K)
Type Security Shares Price Value
Sale Common Stock 500 $27.7501 $14K
Sale Common Stock 1,000 $27.86 $28K
Sale Common Stock 1,000 $27.60 $28K
Sale Common Stock 2,000 $27.57 $55K
Sale Common Stock 500 $27.52 $14K
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 85,936 shares (Indirect, By VI E-Cell Tropical Telecom Ltd); Common Stock — 3,994,303 shares (Direct, null)
Footnotes (1)
Shares sold 5,000 shares Open-market sales on June 29, 2026
Sale prices $27.52–$27.86 per share Prices for 5,000 shares sold on June 29, 2026
Direct holdings 3,994,303 shares Common stock held directly after reported transactions
Revocable trust holdings 363,424 shares Indirect ownership as trustee of revocable trust
Tropical Aircraft Co. holdings 8,227 shares Indirect ownership through Tropical Aircraft Co.
Spouse holdings 500 shares Indirect ownership held by wife
open-market sale financial
"transaction_action": "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
ten percent owner regulatory
""is_ten_percent_owner": 1"
indirect ownership financial
""ownership_type": "indirect""
Common Stock financial
""security_title": "Common Stock""
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
Form 4 regulatory
"INSIDER FILING DATA (Form 4)"
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
PRIOR CORNELIUS B JR
(Last)(First)(Middle)
C/O ATN INTERNATIONAL, INC.
500 CUMMINGS CENTER
(Street)
BEVERLY MASSACHUSETTS 01915
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
ATN International, Inc. [ ATNI ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
DirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/29/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock06/29/2026S500D$27.750185,936IBy VI E-Cell Tropical Telecom Ltd
Common Stock06/29/2026S1,000D$27.8684,936IBy VI E-Cell Tropical Telecom Ltd
Common Stock06/29/2026S1,000D$27.683,936IBy VI E-Cell Tropical Telecom Ltd
Common Stock06/29/2026S2,000D$27.5781,936IBy VI E-Cell Tropical Telecom Ltd
Common Stock06/29/2026S500D$27.5281,436IBy VI E-Cell Tropical Telecom Ltd
Common Stock3,994,303D
Common Stock500IBy: Wife
Common Stock8,227IBy Tropical Aircraft Co.
Common Stock363,424ITrustee of Revocable Trust
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
/s/ Andy Fienberg , Attorney-in-Fact07/01/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did ATN International (ATNI) report for Prior Cornelius B Jr?

ATN International reported that ten percent owner Prior Cornelius B Jr sold 5,000 shares of common stock in open-market transactions through VI E-Cell Tropical Telecom Ltd on June 29, at prices between $27.52 and $27.86 per share.

At what prices were the ATNI shares sold in the latest Form 4 filing?

The reported open-market sales of ATN International common stock were executed at prices ranging from $27.52 to $27.86 per share. These trades together covered 5,000 shares and were all dated June 29, according to the Form 4 data.

How many ATN International shares does Prior Cornelius B Jr still hold directly?

Following the reported transactions, Prior Cornelius B Jr reports direct ownership of 3,994,303 ATN International common shares. This direct position is in addition to several indirect holdings through a revocable trust, Tropical Aircraft Co., his spouse, and VI E-Cell Tropical Telecom Ltd.

What indirect ATNI holdings are reported for Prior Cornelius B Jr in the Form 4?

The Form 4 shows indirect ATN International holdings including 363,424 shares as trustee of a revocable trust, 8,227 shares through Tropical Aircraft Co., and 500 shares held by his wife, along with an additional indirect position via VI E-Cell Tropical Telecom Ltd.

How significant are the 5,000 ATNI shares sold compared to the insider’s overall holdings?

The 5,000 shares sold represent a small portion of Prior Cornelius B Jr’s disclosed ownership. He continues to report 3,994,303 shares held directly plus sizeable indirect holdings through a revocable trust and other related entities, indicating a large remaining stake in ATN International.