ATN International (ATNI)

ATN International on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as telephone communications (no radiotelephone).

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365K

Short interest

settlement 2026-10-15

4.4

Days to cover

+0.4 days vs prior

61.2%

Short share of volume

2026-10-28

702

Fails to deliver

settlement 2026-09-24

Thu 5 Nov

Next earnings

estimated date

-$2.2M

Insider flow, 90 days

0 buys, 31 sells

As of 2026-10-28.

Short interest

FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSON

As of 15 October 2026, short interest in ATNI is 365,071 shares, up 68,279 shares over the last month. Over the last 48 readings it ranged from 98,935 shares (30 January 2026) to 365,071 shares (15 October 2026). The latest reading sits at the top of that range. At the reported average volume of 82K shares a day that is 4.4 days to cover.

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Settlement	Shares short	Change	Avg daily volume	Days to cover
2026-10-15	365,071	+4.3%	82,236	4.44
2026-09-30	350,082	+18.0%	87,555	4.00
2026-09-15	296,792	+20.5%	76,580	3.88
2026-08-31	246,248	+8.7%	81,626	3.02
2026-08-14	226,564	-9.5%	109,125	2.08
2026-07-31	250,400	+10.0%	58,508	4.28
2026-07-15	227,552	+16.3%	77,168	2.95
2026-06-30	195,587	+10.5%	98,569	1.98
2026-06-15	177,004	-0.5%	67,560	2.62
2026-05-29	177,879	+9.5%	66,145	2.69
2026-05-15	162,468	+2.2%	74,131	2.19
2026-04-30	159,038	+7.5%	62,734	2.54
2026-04-15	147,902	-1.7%	77,156	1.92
2026-03-31	150,436	+9.5%	76,588	1.96
2026-03-13	137,437	+20.4%	133,635	1.03
2026-02-27	114,131	-0.2%	46,612	2.45
2026-02-13	114,341	+15.6%	63,353	1.80
2026-01-30	98,935	-3.3%	46,711	2.12
2026-01-15	102,348	+2.2%	45,652	2.24
2025-12-31	100,122	-19.1%	50,697	1.97
2025-12-15	123,834	-1.2%	58,476	2.12
2025-11-28	125,319	-6.5%	57,328	2.19
2025-11-14	134,052	-6.8%	63,128	2.12
2025-10-31	143,885	+1.4%	39,027	3.69
2025-10-15	141,927	+13.4%	29,983	4.73
2025-09-30	125,177	+4.7%	33,757	3.71
2025-09-15	119,574	-0.1%	30,822	3.88
2025-08-29	119,709	-7.8%	34,105	3.51
2025-08-15	129,808	-0.8%	40,630	3.19
2025-07-31	130,834	+5.4%	39,136	3.34
2025-07-15	124,132	-21.5%	47,458	2.62
2025-06-30	158,146	-6.7%	55,342	2.86
2025-06-13	169,518	-6.1%	43,642	3.88
2025-05-30	180,501	+13.7%	43,839	4.12
2025-05-15	158,820	+12.7%	64,457	2.46
2025-04-30	140,966	-1.0%	49,028	2.88
2025-04-15	142,378	-22.7%	62,877	2.26
2025-03-31	184,180	-12.6%	79,943	2.30
2025-03-14	210,645	-5.8%	106,407	1.98
2025-02-28	223,601	-4.4%	51,337	4.36
2025-02-14	233,910	-1.7%	61,659	3.79
2025-01-31	238,033	+8.3%	67,022	3.55
2025-01-15	219,688	+14.0%	107,721	2.04
2024-12-31	192,649	+9.6%	100,670	1.91
2024-12-13	175,705	+35.1%	90,293	1.95
2024-11-29	130,024	+5.9%	78,673	1.65
2024-11-15	122,743	+17.4%	110,565	1.11
2024-10-31	104,565	-9.5%	50,888	2.05

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 28 October 2026, the short share of ATNI volume is 61.2%, up 3.9 points over the last five sessions. Over the last 30 readings it ranged from 39.6% (27 October 2026) to 75.2% (20 October 2026). The latest reading is 2.4 points above the 30-session average of 58.7%, on 35K shares reported.

Date	Short volume	Total volume	Short share	Exempt
2026-10-28	22K	35K	61.2%	0
2026-10-27	15K	38K	39.6%	619
2026-10-26	30K	45K	66.8%	0
2026-10-23	15K	28K	52.5%	0
2026-10-22	11K	18K	60.8%	0
2026-10-21	16K	28K	57.3%	0
2026-10-20	23K	31K	75.2%	0
2026-10-19	21K	30K	70.1%	12
2026-10-16	14K	20K	67.0%	0
2026-10-15	12K	17K	69.1%	0
2026-10-14	13K	20K	64.5%	0
2026-10-13	14K	26K	52.7%	0
2026-10-12	30K	45K	66.0%	270
2026-10-09	20K	35K	56.4%	141
2026-10-08	9K	21K	42.4%	0
2026-10-07	13K	24K	52.2%	0
2026-10-06	12K	25K	49.4%	0
2026-10-05	15K	37K	40.1%	0
2026-10-02	14K	25K	55.3%	0
2026-10-01	12K	20K	60.6%	0
2026-09-30	10K	17K	56.0%	0
2026-09-29	10K	20K	49.3%	20
2026-09-28	13K	20K	64.3%	0
2026-09-25	21K	36K	57.6%	0
2026-09-24	16K	25K	64.6%	0
2026-09-23	24K	34K	70.4%	87
2026-09-22	22K	30K	73.8%	0
2026-09-21	27K	45K	59.5%	0
2026-09-18	16K	37K	42.7%	0
2026-09-17	19K	29K	64.7%	0

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 24 September 2026, the fails-to-deliver balance in ATNI is 702 shares, up 701 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (18 June 2025) to 1,181 shares (24 June 2025).

Settlement	Shares failed	Price	Value
2026-09-24	702	$29.08	$20K
2026-08-26	1	$30.71	$31
2026-08-21	135	$31.14	$4K
2026-08-19	1	$31.42	$31
2026-08-07	1,000	$30.63	$31K
2026-07-29	1	$24.04	$24
2026-07-24	5	$23.32	$117
2026-04-07	1	$27.26	$27
2026-03-19	3	$26.27	$79
2026-02-24	18	$28.37	$511
2026-02-17	3	$28.77	$86
2026-02-03	405	$24.65	$10K
2025-12-30	665	$23.03	$15K
2025-12-26	2	$22.40	$45
2025-12-11	49	$21.41	$1K
2025-12-08	27	$21.41	$578
2025-12-05	27	$21.53	$581
2025-07-30	31	$17.31	$537
2025-07-25	70	$17.95	$1K
2025-07-23	6	$18.46	$111
2025-07-22	1,000	$17.92	$18K
2025-07-16	5	$17.82	$89
2025-06-25	69	$16.38	$1K
2025-06-24	1,181	$16.40	$19K
2025-06-18	1	$15.36	$15
2025-06-09	145	$15.92	$2K
2025-05-30	100	$14.45	$1K
2025-05-13	32	$15.29	$489
2025-04-25	38	$17.47	$664
2025-04-10	701	$17.83	$12K

Insider trades

SEC Form 4, newest first. JSON

Insiders at ATNI reported 31 open-market sells worth $2.2M in the last 90 days and no open-market buys. Latest filing: PRIOR CORNELIUS B JR (10% owner) on 2026-10-01.

Date	Insider	Title	Type	Shares	Price	Value	Owned after
2026-10-01	PRIOR CORNELIUS B JR	10% owner	Gift	14K	$0.00	$0	4.0M
2026-09-04	PRIOR CORNELIUS B JR	10% owner	Gift	13K	$0.00	$0	4.0M
2026-09-03	PRIOR CORNELIUS B JR	10% owner	Sell	5K	$31.02	$141K	30K
2026-09-02	PRIOR CORNELIUS B JR	10% owner	Sell	3K	$31.12	$80K	35K
2026-08-31	Jacobs Patricia	Director	Sell	2K	$30.04	$45K	20K
2026-08-24	PRIOR CORNELIUS B JR	10% owner	Sell	10K	$31.34	$313K	37K
2026-08-21	PRIOR CORNELIUS B JR	10% owner	Sell	5K	$31.32	$168K	20K
2026-08-20	Jacobs Patricia	Director	Sell	1K	$31.14	$31K	21K
2026-08-20	PRIOR CORNELIUS B JR	10% owner	Sell	500	$31.25	$16K	47K
2026-08-19	PRIOR CORNELIUS B JR	10% owner	Sell	10K	$31.86	$319K	48K
2026-08-18	PRIOR CORNELIUS B JR	10% owner	Sell	1K	$31.75	$32K	58K
2026-08-17	PRIOR CORNELIUS B JR	10% owner	Sell	6K	$31.79	$183K	59K
2026-08-14	PRIOR CORNELIUS B JR	10% owner	Sell	26	$32.10	$835	64K
2026-08-13	PRIOR CORNELIUS B JR	10% owner	Sell	3K	$32.05	$80K	64K
2026-08-10	PRIOR CORNELIUS B JR	10% owner	Sell	500	$33.25	$17K	67K
2026-08-10	PRIOR CORNELIUS B JR	10% owner	Sell	7K	$32.49	$211K	67K
2026-08-10	PRIOR CORNELIUS B JR	10% owner	Gift	12K	$0.00	$0	4.0M
2026-08-10	Mabey Mary	SVP AND GENERAL COUNSEL	Sell	5K	$32.13	$161K	60K
2026-08-07	PRIOR CORNELIUS B JR	10% owner	Sell	5K	$31.03	$140K	26K
2026-08-07	PRIOR CORNELIUS B JR	10% owner	Sell	500	$31.17	$16K	74K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$30.25	$15K	74K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$30.35	$15K	75K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$29.15	$15K	75K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$30.25	$15K	76K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$29.10	$15K	76K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$30.35	$15K	77K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$28.95	$14K	77K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$30.30	$15K	78K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$28.96	$14K	78K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$30.30	$15K	79K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$30.30	$15K	79K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$28.80	$14K	80K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$30.50	$15K	80K
2026-08-06	PRIOR CORNELIUS B JR	10% owner	Sell	500	$28.76	$14K	81K
2026-06-29	PRIOR CORNELIUS B JR	10% owner	Sell	500	$27.52	$14K	81K
2026-06-29	PRIOR CORNELIUS B JR	10% owner	Sell	1K	$27.60	$28K	84K
2026-06-29	PRIOR CORNELIUS B JR	10% owner	Sell	2K	$27.57	$55K	82K
2026-06-29	PRIOR CORNELIUS B JR	10% owner	Sell	1K	$27.86	$28K	85K
2026-06-29	PRIOR CORNELIUS B JR	10% owner	Sell	500	$27.75	$14K	86K
2026-06-26	PRIOR CORNELIUS B JR	10% owner	Sell	500	$27.10	$14K	86K
2026-06-25	PRIOR CORNELIUS B JR	10% owner	Sell	500	$27.05	$14K	87K
2026-06-25	PRIOR CORNELIUS B JR	10% owner	Sell	500	$27.10	$14K	87K
2026-06-16	Hudson Derek	Director	Tax withholding	1K	$27.15	$39K	16K
2026-06-16	Hudson Derek	Director	Grant	5K	$27.15	$130K	17K
2026-06-16	Jacobs Patricia	Director	Grant	5K	$27.15	$130K	22K
2026-06-16	Bulkin Bernard J	Director	Grant	5K	$27.15	$130K	37K
2026-06-16	LENEHAN PAMELA F	Director	Grant	5K	$27.15	$130K	38K
2026-06-16	Henry April	Director	Grant	5K	$27.15	$130K	26K
2026-06-12	PRIOR CORNELIUS B JR	10% owner	Sell	19K	$27.96	$534K	88K
2026-06-11	PRIOR CORNELIUS B JR	10% owner	Sell	2K	$27.30	$55K	107K
2026-06-03	PRIOR CORNELIUS B JR	10% owner	Gift	10K	$0.00	$0	4.0M
2026-06-02	PRIOR CORNELIUS B JR	10% owner	Sell	6K	$28.30	$170K	109K
2026-06-01	PRIOR CORNELIUS B JR	10% owner	Sell	13K	$28.29	$357K	115K
2026-05-28	PRIOR CORNELIUS B JR	10% owner	Sell	3K	$28.25	$71K	128K
2026-05-27	PRIOR CORNELIUS B JR	10% owner	Gift	30K	$0.00	$0	4.0M
2026-05-27	PRIOR CORNELIUS B JR	10% owner	Gift	30K	$0.00	$0	130K
2026-05-27	PRIOR CORNELIUS B JR	10% owner	Sell	18K	$28.17	$493K	160K
2026-05-26	PRIOR CORNELIUS B JR	10% owner	Sell	3K	$27.96	$80K	178K
2026-05-21	PRIOR CORNELIUS B JR	10% owner	Sell	2K	$27.25	$55K	181K
2026-05-20	PRIOR CORNELIUS B JR	10% owner	Sell	4K	$27.02	$95K	183K
2026-05-14	PRIOR CORNELIUS B JR	10% owner	Sell	2K	$27.25	$55K	186K
2026-05-11	PRIOR CORNELIUS B JR	10% owner	Sell	5K	$27.25	$136K	188K
2026-05-08	PRIOR CORNELIUS B JR	10% owner	Sell	1K	$26.25	$26K	193K
2026-05-07	PRIOR CORNELIUS B JR	10% owner	Sell	3K	$26.00	$65K	194K
2026-05-07	PRIOR CORNELIUS B JR	10% owner	Sell	4K	$25.54	$89K	197K
2026-04-24	Khoury Naji	CEO	Grant	37K	$0.00	$0	37K
2026-04-20	PRIOR CORNELIUS B JR	10% owner	Gift	200K	$0.00	$0	200K
2026-04-20	PRIOR CORNELIUS B JR	10% owner	Gift	200K	$0.00	$0	4.0M
2026-04-17	PRIOR CORNELIUS B JR	10% owner	Gift	2K	$0.00	$0	4.2M
2026-03-25	Leon Justin M	SVP, CORPORATE DEVELOPMENT	Tax withholding	560	$27.92	$16K	50K
2026-03-25	Martin Brad W	CHIEF EXECUTIVE OFFICER	Tax withholding	1K	$27.92	$35K	126K
2026-03-25	Mabey Mary	SVP AND GENERAL COUNSEL	Tax withholding	875	$27.92	$24K	65K
2026-03-25	PRIOR MICHAEL T	Director, EXECUTIVE CHAIRMAN	Tax withholding	2K	$27.92	$66K	588K
2026-03-17	Doglioli Carlos	Chief Financial Officer	Grant	18K	$0.00	$0	50K
2026-03-17	Leon Justin M	SVP, CORPORATE DEVELOPMENT	Grant	11K	$0.00	$0	50K
2026-03-17	Martin Brad W	CHIEF EXECUTIVE OFFICER	Grant	27K	$0.00	$0	127K
2026-03-17	Mabey Mary	SVP AND GENERAL COUNSEL	Grant	13K	$0.00	$0	66K
2026-03-17	PRIOR MICHAEL T	Director, EXECUTIVE CHAIRMAN	Grant	14K	$0.00	$0	590K
2026-03-13	Doglioli Carlos	Chief Financial Officer	Tax withholding	2K	$24.49	$45K	32K
2026-03-13	Leon Justin M	SVP, CORPORATE DEVELOPMENT	Tax withholding	2K	$24.49	$41K	39K
2026-03-13	Martin Brad W	CHIEF EXECUTIVE OFFICER	Tax withholding	4K	$24.49	$110K	100K
2026-03-13	Mabey Mary	SVP AND GENERAL COUNSEL	Tax withholding	2K	$24.19	$53K	54K
2026-03-13	PRIOR MICHAEL T	Director, EXECUTIVE CHAIRMAN	Tax withholding	5K	$24.49	$115K	577K
2026-03-12	Doglioli Carlos	Chief Financial Officer	Tax withholding	1K	$24.65	$26K	34K
2026-03-12	Leon Justin M	SVP, CORPORATE DEVELOPMENT	Tax withholding	903	$24.65	$22K	41K
2026-03-12	Martin Brad W	CHIEF EXECUTIVE OFFICER	Tax withholding	2K	$24.65	$57K	105K
2026-03-12	Mabey Mary	SVP AND GENERAL COUNSEL	Tax withholding	1K	$24.65	$28K	56K
2026-03-12	PRIOR MICHAEL T	Director, EXECUTIVE CHAIRMAN	Tax withholding	2K	$24.65	$54K	581K
2026-03-07	Leon Justin M	SVP, CORPORATE DEVELOPMENT	Tax withholding	1K	$24.18	$34K	43K
2026-03-07	Leon Justin M	SVP, CORPORATE DEVELOPMENT	Exercise or conversion	3K	price not stated in the filing	not stated	44K
2026-03-07	Leon Justin M	SVP, CORPORATE DEVELOPMENT	Tax withholding	613	$24.18	$15K	42K
2026-03-07	Mabey Mary	SVP AND GENERAL COUNSEL	Tax withholding	819	$24.18	$20K	57K
2026-03-07	Mabey Mary	SVP AND GENERAL COUNSEL	Exercise or conversion	4K	price not stated in the filing	not stated	60K
2026-03-07	Mabey Mary	SVP AND GENERAL COUNSEL	Tax withholding	2K	$24.18	$46K	58K
2026-03-07	Martin Brad W	CHIEF EXECUTIVE OFFICER	Tax withholding	1K	$24.18	$32K	107K
2026-03-07	Martin Brad W	CHIEF EXECUTIVE OFFICER	Tax withholding	3K	$24.18	$67K	108K
2026-03-07	Martin Brad W	CHIEF EXECUTIVE OFFICER	Exercise or conversion	6K	price not stated in the filing	not stated	111K
2026-03-07	PRIOR MICHAEL T	Director,Other	Tax withholding	6K	$24.18	$155K	586K
2026-03-07	PRIOR MICHAEL T	Director,Other	Exercise or conversion	15K	price not stated in the filing	not stated	593K
2026-03-07	PRIOR MICHAEL T	Director,Other	Tax withholding	3K	$24.18	$72K	583K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

Planned sales (Form 144)

Newest first. JSON

6 Form 144 notices on file for ATNI worth $936K at the prices reported; 6 in the last 90 days worth $936K. Latest: Prior Family Foundation DTD 6/9/06 filed on 2026-09-15 to sell 5,000 shares ($155K) from 2026-09-15.

Filed	Seller	Shares	Market value	Of outstanding	Sale from	Broker
2026-09-15	Prior Family Foundation DTD 6/9/06Stakeholder	5K	$155K	0.032%	2026-09-15	UBS Financial Services Inc
2026-08-24	Prior Family Foundation DTD 6/9/06Stakeholder	5K	$155K	0.032%	2026-08-24	UBS Financial Services Inc
2026-08-20	Prior Family Foundation DTD 6/9/06Stakeholder	5K	$155K	0.032%	2026-08-20	UBS Financial Services Inc
2026-08-17	Prior Family Foundation DTD 6/9/06Stakeholder	5K	$157K	0.033%	2026-08-17	UBS Financial Services Inc
2026-08-14	Prior Family Foundation DTD 6/9/06Stakeholder	5K	$159K	0.033%	2026-08-14	UBS Financial Services Inc
2026-08-10	Mabey MaryOfficer	5K	$155K	0.032%	2026-08-10	FIDELITY BROKERAGE SERVICES LLC

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

2 holders report 5% or more of ATNI in their latest filing, all on Schedule 13D (active intent). The largest reported stake is PRIOR CORNELIUS B JR at 29.0% of the class (4,454,390 shares), filed 2026-06-15 for an event on 2026-04-20.

Filed	Form	Holder	Shares	Of class	Event
2026-09-18	13D/Ano. 2	Cornelius B. Prior, Jr.individual	4.3M	28.2%	2026-08-10
2026-06-15	13D/Ano. 1	PRIOR CORNELIUS B JRindividual	4.5M	29.0%	2026-04-20
2026-04-09	13G/Ano. 9	Dimensional Fund Advisors LPinvestment adviser	748K	4.9%	2026-03-31

13F holders

Tracked managers holding ATNI at their latest 13F. JSON

6 of the 30 tracked managers held ATNI at their latest 13F, $24.6M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $9.9M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 1 cut.

Fund	Quarter	Shares	Value	Of portfolio	Change in shares
D. E. Shaw & Co.	2026-06-30	375K	$9.9M	0.00%	+2K
Renaissance Technologies	2026-06-30	321K	$8.5M	0.01%	-17K
Citadel Advisors	2026-06-30	98K	$2.6M	0.00%	+60K
Two Sigma Investments	2026-06-30	79K	$2.1M	0.00%	+24K
AQR Capital Management	2026-06-30	44K	$1.2M	0.00%	+33K
Millennium Management	2026-06-30	11K	$300K	0.00%	+3K

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q2 FY 2026 (quarter ended 2026-06-30) ATN International reported revenue of $170.5M, up 2.4% from the same quarter a year earlier, and net income of $167.3M (10.71 diluted EPS). In FY 2025 it generated $133.9M of operating cash flow and spent $15.7M on dividends. As of 2026-06-30, cash was $317.6M against $513.3M of debt.

Cash: $317.6M
Debt: $513.3M
Equity: $598.8M
Total assets: $1.88B
Shares outstanding: 15,403,357

Quarterly, last 8 quarters

Quarter	Period end	Revenue	Net income	Margin	Diluted EPS
Q2 FY 2026	2026-06-30	$170.5M	$167.3M	98.1%	10.71
Q1 FY 2026	2026-03-31	$167.9M	-$2.8M	-1.7%	-0.29
Q4 FY 2025derived	2025-12-31	$169.1M	n/a	n/a	n/a
Q3 FY 2025	2025-09-30	$166.9M	n/a	n/a	0.18
Q2 FY 2025	2025-06-30	$166.5M	-$7.0M	-4.2%	-0.56
Q1 FY 2025	2025-03-31	$164.6M	-$8.9M	-5.4%	-0.69
Q4 FY 2024derived	2024-12-31	$167.1M	n/a	n/a	n/a
Q3 FY 2024	2024-09-30	$164.6M	n/a	n/a	-2.26

Fiscal years, with buybacks and dividends

Fiscal year	Ends	Revenue	Net income	Operating cash flow	Capex	Buybacks	Dividends
FY 2025	2025-12-31	$667.1M	-$23.5M	$133.9M	$90.0M	n/a	$15.7M
FY 2024	2024-12-31	$674.0M	-$31.9M	$127.9M	$110.4M	$10.0M	$14.7M
FY 2023	2023-12-31	$709.9M	-$18.8M	$111.6M	$163.3M	$15.0M	$13.2M
FY 2022	2022-12-31	$678.0M	-$7.6M	$102.9M	$160.1M	$942K	$10.7M
FY 2021	2021-12-31	$565.5M	-$20.8M	$80.5M	$96.4M	$10.5M	$10.8M

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-08-10 from the cover page.

What this page is

ATN International in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows ATN International (ATNI), SEC CIK 879585, listed on Nasdaq, classified by the SEC as telephone communications (no radiotelephone). The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest: FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
Daily short volume: FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-28.JSON and CSV
Fails to deliver: SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-24.JSON and CSV
Planned sales: SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-09-15.JSON and CSV
Large holders: SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-09-18.JSON and CSV
13F holders: SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials: SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Earnings dates: SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-06.JSON and CSV
Insider trades: SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-01.JSON and CSV
Company record: EDGAR filing index for CIK 879585Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits: 10 requests a minute without a key, 30 with a free key from a free account.

How to read it

Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Other companies the SEC classifies as telephone communications (no radiotelephone)

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Datasets

Frequently Asked Questions

How much of ATNI is sold short?

365,071 shares were held short at the 2026-10-15 settlement, 4.4 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.

What is ATNI's daily short volume?

On 2026-10-28, 21,631 of the 35,355 ATNI shares reported to FINRA were sold short, 61.2% of the day's reported volume. Short volume is a flow for one day, not a position.

Does ATNI have fails to deliver?

The SEC's latest file shows 702 ATNI shares failed to deliver at settlement 2026-09-24. Fails are reported per settlement date and published twice a month with a lag.

Are ATNI insiders buying or selling?

Insiders at ATNI reported 31 open-market sells worth $2.2M in the last 90 days and no open-market buys. Latest filing: PRIOR CORNELIUS B JR (10% owner) on 2026-10-01.

Have ATNI insiders filed to sell?

Who owns 5% or more of ATNI?

What did ATNI report last quarter?

Which tracked 13F managers own ATNI?

6 of the 30 tracked 13F managers held ATNI shares at their latest filing, $24.6M in all. The largest: D. E. Shaw & Co. (375K shares, $9.9M), Renaissance Technologies (321K shares, $8.5M), Ken Griffin's Citadel Advisors (98K shares, $2.6M), Two Sigma Investments (79K shares, $2.1M), Cliff Asness's AQR Capital Management (44K shares, $1.2M), Izzy Englander's Millennium Management (11K shares, $300K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.