ATN International, Inc.: which funds bought and sold

Institutions that bought and sold ATN International shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 74 institutions that filed 13F reports for both quarters added to or opened positions in ATN International, and 49 cut or closed them. Together they added a net 345K shares, +3.8% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 248K shares (+9.6%); index fund managers were net buyers of 69K shares (+3.2%). 20 opened a new position and 8 sold out entirely.

Bought, Q2 2026 74 institutions, 20 of them new holders Sold, Q2 2026 49 institutions, 8 of them sold out

Net change, all compared +345K shares (+3.8%)

Net change, active managers +248K shares (+9.6%), 19 bought, 13 sold

Buyers versus sellers

institutions compared, 142

74 bought 19 49 sold

Active managers and hedge funds 19 bought · 13 sold · +248K

Index fund managers 7 bought · 2 sold · +69K

Other institutions 48 bought · 34 sold · +28K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
American Century Companies Inc Active manager	+99K +20.8%	574K	$15.2M
Citadel Advisors LLC Hedge fund	+60K +155.2%	98K	$2.6M
O'Shaughnessy Asset Management, LLC Active manager	+54K +386.4%	68K	$1.8M
AQR Capital Management LLC Hedge fund	+33K +300.0%	44K	$1.2M
Segall Bryant & Hamill, LLC Active manager	+33K +112.5%	62K	$1.7M
Ritholtz Wealth Management	+31K +176.3%	49K	$1.3M
Northern Trust Corp Index funds	+30K +36.4%	114K	$3M
Two Sigma Investments, LP Hedge fund	+24K +42.6%	79K	$2.1M
Magnetar Financial LLC Hedge fund	+22K New position	22K	$591,866
Blackrock, Inc. Index funds	+21K +2.3%	923K	$24.5M
FMR LLC Active manager	+20K +18.5%	127K	$3.4M
Geode Capital Management, LLC Index funds	+19K +7.4%	271K	$7.2M
State Of Wisconsin Investment Board	+17K +82.3%	37K	$987,282
Acadian Asset Management LLC Active manager	+17K +4.6%	380K	$10.1M
Goldman Sachs Group Inc	+15K +20.0%	90K	$2.4M
Prudential Financial Inc	+14K New position	14K	$379,814
Jpmorgan Chase & Co	+11K +25.5%	56K	$1.6M
Squarepoint Ops LLC Hedge fund	+10K New position	10K	$277,615
Algert Global LLC Hedge fund	+10K New position	10K	$275,231
Dynamic Technology Lab Private Ltd	+9,883 New position	9,883	$262,000

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
American Century Companies Inc Active manager	+99K +20.8%	574K	$15.2M
Citadel Advisors LLC Hedge fund	+60K +155.2%	98K	$2.6M
O'Shaughnessy Asset Management, LLC Active manager	+54K +386.4%	68K	$1.8M
AQR Capital Management LLC Hedge fund	+33K +300.0%	44K	$1.2M
Segall Bryant & Hamill, LLC Active manager	+33K +112.5%	62K	$1.7M
Two Sigma Investments, LP Hedge fund	+24K +42.6%	79K	$2.1M
Magnetar Financial LLC Hedge fund	+22K New position	22K	$591,866
FMR LLC Active manager	+20K +18.5%	127K	$3.4M
Acadian Asset Management LLC Active manager	+17K +4.6%	380K	$10.1M
Squarepoint Ops LLC Hedge fund	+10K New position	10K	$277,615

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Empirical Finance, LLC	−45K Sold out	0	—
Trexquant Investment LP Hedge fund	−43K −62.5%	26K	$680,316
Sei Investments Co	−41K −47.8%	45K	$1.2M
Arrowstreet Capital, Limited Partnership Hedge fund	−38K −27.2%	101K	$2.7M
Dimensional Fund Advisors LP	−21K −2.8%	727K	$19.3M
Renaissance Technologies LLC Hedge fund	−17K −5.0%	321K	$8.5M
Los Angeles Capital Management LLC Active manager	−16K Sold out	0	—
Quadrature Capital Ltd Hedge fund	−16K Sold out	0	—
Global Alpha Capital Management Ltd.	−13K −0.9%	1.4M	$38.3M
Jane Street Group, LLC	−12K −39.4%	19K	$491,416
HSBC Holdings PLC	−10K −44.4%	13K	$339,275
Vanguard Capital Management LLC Index funds	−8,126 −1.9%	414K	$11M
UBS Group AG	−7,047 −22.3%	25K	$651,442
Gabelli Funds LLC Active manager	−6,773 −5.8%	110K	$2.9M
State Street Corp Index funds	−5,618 −2.5%	222K	$5.9M
Qube Research & Technologies Ltd Hedge fund	−5,056 −26.8%	14K	$366,728
Morgan Stanley	−3,232 −1.2%	278K	$7.4M
Bank Of America Corp	−3,127 −10.9%	26K	$677,614
Engineers Gate Manager LP Hedge fund	−3,060 −11.9%	23K	$601,906
Wick Capital Partners, LLC	−1,995 Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Trexquant Investment LP Hedge fund	−43K −62.5%	26K	$680,316
Arrowstreet Capital, Limited Partnership Hedge fund	−38K −27.2%	101K	$2.7M
Renaissance Technologies LLC Hedge fund	−17K −5.0%	321K	$8.5M
Los Angeles Capital Management LLC Active manager	−16K Sold out	0	—
Quadrature Capital Ltd Hedge fund	−16K Sold out	0	—
Gabelli Funds LLC Active manager	−6,773 −5.8%	110K	$2.9M
Qube Research & Technologies Ltd Hedge fund	−5,056 −26.8%	14K	$366,728
Engineers Gate Manager LP Hedge fund	−3,060 −11.9%	23K	$601,906
Jacobs Levy Equity Management, Inc Active manager	−1,611 −5.0%	30K	$805,879
Alliancebernstein L.P. Active manager	−500 −2.9%	16K	$448,858

New positions

largest by value

Institution	Shares	Value June 30, 2026
Magnetar Financial LLCHedge fund	22K	$591,866
Prudential Financial Inc	14K	$379,814
Squarepoint Ops LLCHedge fund	10K	$277,615
Algert Global LLCHedge fund	10K	$275,231
Dynamic Technology Lab Private Ltd	9,883	$262,000
Creative Planning	8,508	$225,377
Canada Pension Plan Investment Board	8,300	$219,867
D'Orazio & Associates, Inc.	8,195	$217,086
Semanteon Capital Management, LP	7,691	$203,735
Integrated Wealth Concepts LLC	289	$7,652

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Empirical Finance, LLC	45K	$1.2M
Los Angeles Capital Management LLCActive manager	16K	$449,048
Quadrature Capital LtdHedge fund	16K	$430,893
Wick Capital Partners, LLC	1,995	$202,313
Quadrant Capital Group LLC	20	$545
Wealthcollab, LLC	11	$300
Root Financial Partners, LLC	10	$272
Mai Capital Management	5	$137

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 134
Ten largest holders: 64.1%
Index fund managers: 23.2%
Active managers and hedge funds: 29.9%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	19	13	3	2	+248K	+9.6%
Index fund managers	7	2	0	0	+69K	+3.2%
Other institutions	48	34	17	6	+28K	+0.6%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on ATN International.

Only managers that filed a holdings report for both quarters are compared (142 here). 2 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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