STOCK TITAN

ATN International (ATNI) ten percent owner sells 82K shares, gifts 470K

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

ATN International, Inc. ten percent owner Cornelius B. Prior Jr. reported a series of transactions in the company’s common stock. Through VI E-Cell TropicalTelecom Ltd, an entity he largely owns and chairs, he executed open-market sales totaling 82,064 shares between April 20 and June 12 at prices generally in the mid‑$20s per share. He also reported bona fide gifts of 470,000 shares, including gifts made directly and through VI E-Cell, with one gift of 10,000 shares going to a non-profit entity.

Following these transactions, Prior holds 3,994,303 shares directly, 87,936 shares indirectly via VI E-Cell TropicalTelecom Ltd, and additional indirect holdings of 8,227 shares via Tropical Aircraft Co and 500 shares via his spouse. The filing notes it was submitted late due to an inadvertent administrative error and also clarifies a prior overstatement of indirect beneficial ownership for shares held by a 501(c)(3) foundation in which he has no pecuniary interest.

Positive

  • None.

Negative

  • None.
Insider PRIOR CORNELIUS B JR
Role null
Sold 82,064 shs ($2.28M)
Type Security Shares Price Value
Sale Common Stock 19,100 $27.96 $534K
Sale Common Stock 2,000 $27.30 $55K
Gift Common Stock 10,000 $0.00 --
Sale Common Stock 6,000 $28.30 $170K
Sale Common Stock 12,610 $28.29 $357K
Sale Common Stock 2,500 $28.25 $71K
Sale Common Stock 17,500 $28.17 $493K
Gift Common Stock 30,000 $0.00 --
Gift Common Stock 30,000 $0.00 --
Sale Common Stock 2,854 $27.96 $80K
Sale Common Stock 2,000 $27.25 $55K
Sale Common Stock 3,500 $27.02 $95K
Sale Common Stock 2,000 $27.25 $55K
Sale Common Stock 5,000 $27.25 $136K
Sale Common Stock 1,000 $26.25 $26K
Sale Common Stock 3,500 $25.54 $89K
Sale Common Stock 2,500 $26.00 $65K
Gift Common Stock 200,000 $0.00 --
Gift Common Stock 200,000 $0.00 --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 87,936 shares (Indirect, By VI E-Cell TropicalTelecom Ltd); Common Stock — 3,994,303 shares (Direct, null)
Footnotes (1)
  1. This Form 4 is being filed late due to inadvertent administrative error. Represents shares transferred by the reporting person to VI E-Cell Tropical Telecom Ltd. ("VI E-Cell"), a U.S. Virgin Islands limited company that is 80% owned by the reporting person and of which the reporting person serves as the chairman. In the Form 4 filed by the reporting person on April 20, 2026, the reporting person inadvertently reported indirect beneficial ownership of 363,424 shares held as trustee of a revocable trust. Such shares are not reported on this Form 4 as they are held by a 501(c)(3) foundation and the reporting person has no pecuniary interest in such shares, and as such, have been removed from this filing to correct the prior report. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.75, 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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.87 to $28.00, 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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.00 to $28.65, 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. Represents shares transferred by VI E-Cell to the reporting person. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.25 to $28.35, 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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.30 to $28.31, 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. Represents a bona fide gift of 10,000 shares from the reporting person to a non-profit entity. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.56 to $28.40, 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.
Shares sold 82,064 shares Open-market sales between April 20 and June 12, 2026
Shares gifted 470,000 shares Bona fide gifts reported in multiple entries
Direct holdings after transactions 3,994,303 shares Common Stock held directly by reporting person
Indirect holdings via VI E-Cell 87,936 shares Indirect ownership through VI E-Cell TropicalTelecom Ltd
Indirect holdings via Tropical Aircraft Co 8,227 shares Indirect ownership through Tropical Aircraft Co
Indirect holdings via spouse 500 shares Indirect ownership via wife
Example sale price $28.30 per share Price for 6,000-share sale on June 2, 2026
Example sale price $27.25 per share Price for 2,000-share sale on May 14, 2026
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.
bona fide gift financial
"transaction_code_description": "Bona fide gift""
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.
ten percent owner regulatory
""is_ten_percent_owner": 1"
indirect ownership financial
""ownership_type": "indirect""
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.
pecuniary interest financial
"the reporting person has no pecuniary interest in such shares"
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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)
04/20/2026
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 Stock04/20/2026(1)G(2)200,000D$03,974,303D(3)
Common Stock04/20/2026(1)G(2)200,000A$0200,000IBy VI E-Cell TropicalTelecom Ltd
Common Stock05/07/2026(1)S3,500D$25.54(4)196,500IBy VI E-Cell TropicalTelecom Ltd
Common Stock05/07/2026(1)S2,500D$26194,000IBy VI E-Cell TropicalTelecom Ltd
Common Stock05/08/2026(1)S1,000D$26.25193,000IBy VI E-Cell TropicalTelecom Ltd
Common Stock05/11/2026(1)S5,000D$27.25188,000IBy VI E-Cell Tropical Telecom Ltd
Common Stock05/14/2026(1)S2,000D$27.25186,000IBy VI E-Cell Tropical Telecom Ltd
Common Stock05/20/2026(1)S3,500D$27.02182,500IBy VI E-Cell TropicalTelecom Ltd
Common Stock05/21/2026(1)S2,000D$27.25180,500IBy VI E-Cell TropicalTelecom Ltd
Common Stock05/26/2026(1)S2,854D$27.96(5)177,646IBy VI E-Cell TropicalTelecom Ltd
Common Stock05/27/2026(1)S17,500D$28.17(6)160,146IBy VI E-Cell TropicalTelecom Ltd
Common Stock05/27/2026(1)G(7)30,000D$0130,146IBy VI E-Cell TropicalTelecom Ltd
Common Stock05/27/2026(1)G(7)30,000A$04,004,303D
Common Stock05/28/2026(1)S2,500D$28.25127,646IBy VI E-Cell TropicalTelecom Ltd
Common Stock06/01/2026(1)S12,610D$28.29(8)115,036IBy VI E-Cell TropicalTelecom Ltd
Common Stock06/02/2026(1)S6,000D$28.3(9)109,036IBy VI E-Cell TropicalTelecom Ltd
Common Stock06/03/2026(1)G(10)10,000D$03,994,303D
Common Stock06/11/2026S2,000D$27.3107,036IBy VI E-Cell TropicalTelecom Ltd
Common Stock06/12/2026S19,100D$27.96(11)87,936IBy VI E-Cell TropicalTelecom Ltd
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. This Form 4 is being filed late due to inadvertent administrative error.
2. Represents shares transferred by the reporting person to VI E-Cell Tropical Telecom Ltd. ("VI E-Cell"), a U.S. Virgin Islands limited company that is 80% owned by the reporting person and of which the reporting person serves as the chairman.
3. In the Form 4 filed by the reporting person on April 20, 2026, the reporting person inadvertently reported indirect beneficial ownership of 363,424 shares held as trustee of a revocable trust. Such shares are not reported on this Form 4 as they are held by a 501(c)(3) foundation and the reporting person has no pecuniary interest in such shares, and as such, have been removed from this filing to correct the prior report.
4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.00 to $25.75, 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.
5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.87 to $28.00, 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.
6. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.00 to $28.65, 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.
7. Represents shares transferred by VI E-Cell to the reporting person.
8. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.25 to $28.35, 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.
9. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.30 to $28.31, 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.
10. Represents a bona fide gift of 10,000 shares from the reporting person to a non-profit entity.
11. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.56 to $28.40, 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.
/s/ Andy Fienberg, Attorney-in-Fact06/15/2026
** 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)

FAQ

What insider transactions did ATNI ten percent owner Cornelius B. Prior Jr. report?

He reported open-market sales and gifts of ATNI common stock. Sales totaled 82,064 shares through VI E-Cell TropicalTelecom Ltd, while bona fide gifts totaled 470,000 shares, including transfers both directly and through VI E-Cell.

How many ATNI shares did Cornelius B. Prior Jr. sell in this Form 4?

He sold 82,064 shares of ATN International common stock in open-market transactions. These sales were executed through VI E-Cell TropicalTelecom Ltd at weighted average prices generally in the mid‑$20s per share over multiple dates.

How many ATNI shares did Cornelius B. Prior Jr. gift, and to whom?

He reported bona fide gifts totaling 470,000 shares of ATN International common stock. These included gifts made directly, gifts via VI E-Cell TropicalTelecom Ltd, and a specific 10,000‑share gift to a non-profit entity as disclosed in the footnotes.

What are Cornelius B. Prior Jr.’s ATNI holdings after these transactions?

After the reported transactions, he holds 3,994,303 ATNI shares directly. He also holds 87,936 shares indirectly through VI E-Cell TropicalTelecom Ltd, plus 8,227 shares via Tropical Aircraft Co and 500 shares via his spouse.

Were any ATNI insider gifts linked to charitable or non-profit entities?

Yes. One footnote specifies a bona fide gift of 10,000 ATN International shares from Cornelius B. Prior Jr. to a non-profit entity. Other gifts were reported both directly and via VI E-Cell TropicalTelecom Ltd, totaling 470,000 shares overall.

Why does the ATNI Form 4 mention a correction to prior beneficial ownership reporting?

The Form 4 explains that a prior filing mistakenly reported indirect beneficial ownership of shares held in a revocable trust. Those shares are actually held by a 501(c)(3) foundation in which he has no pecuniary interest, so they were removed to correct the earlier report.

Was the ATNI Form 4 for Cornelius B. Prior Jr. filed on time?

No. A footnote states the Form 4 was filed late due to an inadvertent administrative error. The filing otherwise details his recent open-market sales, gifts, and corrected beneficial ownership information for ATN International common stock.