STOCK TITAN

ATN International holder gifts 12,500 shares, sells 9,867

ATNI’s ten percent owner reported a sizable charitable gift plus additional indirect share sales around $31 per share.

(Moderate)
(Negative)
Form Type
4

Rhea-AI Filing Summary

ATN International, Inc. (ATNI) major shareholder Prior Cornelius B. Jr., a ten percent owner, reported several transactions in Common Stock. On September 4, 2026, he made a bona fide gift of 12,500 shares to a non-profit entity, leaving 3,969,803 shares held directly.

Indirectly held shares were affected by sales of 4,500 shares on August 7, 2026, at a weighted average price of $31.03 per share (in a range of $30.75–$31.20), and 5,367 shares on August 21, 2026 at $31.32 per share through VI E-Cell Tropical Telecom Ltd. As of August 7, 2026, he also reported 500 shares held indirectly by his wife and 8,227 shares held indirectly by Tropical Aircraft Co. No Rule 10b5-1 trading plan is reported.

Positive

  • None.

Negative

  • None.
Insider PRIOR CORNELIUS B JR
Role 10% Owner
Sold 9,867 shs ($308K)
Type Security Shares Price Value
Gift Common Stock F2 12,500 $0.00 $0.00
Sale Common Stock 5,367 $31.32 $168K
Sale Common Stock F1 4,500 $31.03 $140K
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 20,174 shares (Indirect, By VI E-Cell Tropical Telecom Ltd); Common Stock — 3,969,803 shares (Direct); Common Stock — 500 shares (Indirect, By: Wife); Common Stock — 8,227 shares (Indirect, By Tropical Aircraft Co.)
Footnotes (2)
  1. F1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.75 to $31.20, inclusive. The reporting person undertakes to provide to ATN International, Inc., any security holder of ATN International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
  2. F2. Represents a bona fide gift of 12,500 shares from the reporting person to a non-profit entity.
Gifted shares 12,500 shares Bona fide gift to a non-profit entity on September 4, 2026
Direct holdings after gift 3,969,803 shares Common Stock held directly by Prior Cornelius B. Jr. following September 4, 2026 gift
Shares sold August 21, 2026 5,367 shares Indirect sale via VI E-Cell Tropical Telecom Ltd at $31.32 per share
Price per share August 21, 2026 sale $31.32 per share Sale of 5,367 shares indirectly held through VI E-Cell Tropical Telecom Ltd
Shares sold August 7, 2026 4,500 shares Indirect sale via VI E-Cell Tropical Telecom Ltd at weighted average price
Weighted average sale price August 7, 2026 $31.03 per share Multiple trades with prices from $30.75 to $31.20, inclusive
Indirect holdings by wife 500 shares Common Stock held indirectly by wife as of August 7, 2026
Indirect holdings by Tropical Aircraft Co. 8,227 shares Common Stock held indirectly by Tropical Aircraft Co. as of August 7, 2026
bona fide gift regulatory
"Represents a bona fide gift of 12,500 shares from the reporting person"
A bona fide gift is a genuine, voluntary transfer of money, property, or benefits from one party to another made without expectation of repayment, services, or hidden conditions. Investors care because such gifts can affect company disclosures, related‑party transaction rules, tax treatment, and perceived conflicts of interest; think of it like someone giving you a present with no strings attached — but on a corporate scale, auditors and regulators need to verify it really is unconditional.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
ten percent owner regulatory
"reporting person is indicated as a ten percent owner of ATN International, Inc."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did ATNI major shareholder Prior Cornelius B. Jr. report?

He reported a bona fide gift of 12,500 ATNI shares to a non-profit on September 4, 2026, and two indirect sales totaling 9,867 shares in August 2026 through VI E-Cell Tropical Telecom Ltd at prices around $31 per share.

How many ATNI shares does Prior Cornelius B. Jr. hold directly after these transactions?

After the September 4, 2026 gift, Prior Cornelius B. Jr. reported holding 3,969,803 shares of ATNI Common Stock directly, according to the Form 4 disclosure.

What were the details of the August 21, 2026 ATNI stock sale reported on the Form 4?

On August 21, 2026, an entity described as VI E-Cell Tropical Telecom Ltd sold 5,367 ATNI shares indirectly attributable to Prior Cornelius B. Jr. at a price of $31.32 per share.

What were the details of the August 7, 2026 ATNI stock sale for Prior Cornelius B. Jr.?

On August 7, 2026, 4,500 ATNI shares were sold indirectly through VI E-Cell Tropical Telecom Ltd at a weighted average price of $31.03 per share, in multiple trades with prices ranging from $30.75 to $31.20.

Were Prior Cornelius B. Jr.’s ATNI transactions under a Rule 10b5-1 plan?

No. The Form 4 indicates the Rule 10b5-1 checkbox is not affirmed, and the footnotes describing the transactions do not state that they were made pursuant to a Rule 10b5-1 trading plan.

What indirect ATNI shareholdings does Prior Cornelius B. Jr. report?

As of August 7, 2026, he reported 500 ATNI shares held indirectly by his wife and 8,227 ATNI shares held indirectly by Tropical Aircraft Co. in addition to indirect holdings through VI E-Cell Tropical Telecom Ltd.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
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)
08/07/2026
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 Stock08/07/2026S4,500D$31.03(1)25,541IBy VI E-Cell Tropical Telecom Ltd
Common Stock08/21/2026S5,367D$31.3220,174IBy VI E-Cell Tropical Telecom Ltd
Common Stock09/04/2026G12,500D$0(2)3,969,803D
Common Stock500IBy: Wife
Common Stock8,227IBy Tropical Aircraft Co.
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:
1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.75 to $31.20, inclusive. The reporting person undertakes to provide to ATN International, Inc., any security holder of ATN International, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
2. Represents a bona fide gift of 12,500 shares from the reporting person to a non-profit entity.
/s/ Cornelius B. Prior, Jr.09/18/2026
** 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)

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