On this page, we present all of the funds holding ATUS from our database of 13F filers, detailed in the table below. The first column indicates the name of each of the funds holding ATUS, with a link to that fund's top holdings. The next columns indicate the amount of ATUS stock held by each of the funds holding ATUS, followed by the ATUS position size held by the fund, and lastly the date of the quarterly filing period the data represents. In total, we count 179 funds holding ATUS within the last two filing periods in our coverage universe of 13F filers, with the largest position size having been reported by Clarkston Capital Partners LLC. For more details on the positions held by Clarkston Capital Partners LLC (or by any of the other funds holding ATUS), click the fund name in the "Holder" column of the funds-holding-ATUS table below.

Holder	Amount	Position Size ($ in 1000's)	As of
Clarkston Capital Partners LLC	35,511,241	$115,412	12/31/2023
ATUS	35,511,241	$115,412	12/31/2023
Vanguard Group Inc.	21,476,224	$69,798	12/31/2023
ATUS	21,476,224	$69,798	12/31/2023
Redwood Capital Management LLC	10,389,270	$33,765	12/31/2023
ATUS	10,389,270	$33,765	12/31/2023
D. E. Shaw & Co. Inc.	10,327,358	$33,564	12/31/2023
ATUS	10,327,358	$33,564	12/31/2023
Loomis Sayles & Co. L P	7,632,952	$24,807	12/31/2023
ATUS	7,632,952	$24,807	12/31/2023
FMR LLC	7,409,957	$24,082	12/31/2023
ATUS	7,409,957	$24,082	12/31/2023
Citadel Advisors LLC		$23,712	12/31/2023
ATUS	5,605,262	$18,217	12/31/2023
Call	1,814,500	$5,897	12/31/2023
Put	123,800	$402	12/31/2023
Thompson Siegel & Walmsley LLC	6,850,472	$22,264	12/31/2023
ATUS	6,850,472	$22,264	12/31/2023
TPG GP A LLC	6,596,818	$21,440	12/31/2023
ATUS	6,596,818	$21,440	12/31/2023
AQR Capital Management LLC	6,151,853	$19,994	12/31/2023
ATUS	6,151,853	$19,994	12/31/2023
Millennium Management LLC	6,046,230	$19,650	12/31/2023
ATUS	6,046,230	$19,650	12/31/2023
Massachusetts Financial Services Co. MA	5,387,695	$17,510	12/31/2023
ATUS	5,387,695	$17,510	12/31/2023
Primecap Management Co. CA	5,285,000	$17,176	12/31/2023
ATUS	5,285,000	$17,176	12/31/2023
Hudson Bay Capital Management LP	5,027,693	$16,340	12/31/2023
ATUS	5,027,693	$16,340	12/31/2023
Morgan Stanley	4,844,120	$15,743	12/31/2023
ATUS	4,844,120	$15,743	12/31/2023
Baupost Group LLC MA	4,774,615	$15,517	12/31/2023
ATUS	4,774,615	$15,517	12/31/2023
BlackRock Inc.	4,437,639	$14,422	12/31/2023
ATUS	4,437,639	$14,422	12/31/2023
Balyasny Asset Management LLC	4,205,251	$13,667	12/31/2023
ATUS	4,205,251	$13,667	12/31/2023
Raymond James & Associates	4,184,163	$13,599	12/31/2023
ATUS	4,184,163	$13,599	12/31/2023
Mount Capital Ltd	3,925,083	$12,757	12/31/2023
ATUS	3,925,083	$12,757	12/31/2023
Marshall Wace LLP	3,906,759	$12,697	12/31/2023
ATUS	3,906,759	$12,697	12/31/2023
Assenagon Asset Management S.A.	3,884,841	$12,626	12/31/2023
ATUS	3,884,841	$12,626	12/31/2023
Ares Management LLC	3,547,478	$11,529	12/31/2023
ATUS	3,547,478	$11,529	12/31/2023
Cerberus Capital Management L.P.	3,503,664	$11,387	12/31/2023
ATUS	3,503,664	$11,387	12/31/2023
Goldman Sachs Group Inc.		$9,805	12/31/2023
ATUS	2,967,056	$9,643	12/31/2023
Call	50,000	$162	12/31/2023
Renaissance Technologies LLC	2,878,800	$9,356	12/31/2023
ATUS	2,878,800	$9,356	12/31/2023
UBS Group AG		$9,342	12/31/2023
ATUS	2,854,441	$9,277	12/31/2023
Call	20,000	$65	12/31/2023
Boundary Creek Advisors LP		$9,158	12/31/2023
Call	2,817,700	$9,158	12/31/2023
Federated Hermes Inc.	2,799,589	$9,099	12/31/2023
ATUS	2,799,589	$9,099	12/31/2023
Geode Capital Management LLC	2,372,096	$7,711	12/31/2023
ATUS	2,372,096	$7,711	12/31/2023
Dimensional Fund Advisors LP	2,349,660	$7,636	12/31/2023
ATUS	2,349,660	$7,636	12/31/2023
Two Sigma Investments LP	2,307,209	$7,498	12/31/2023
ATUS	2,307,209	$7,498	12/31/2023
Apollo Management Holdings L.P.	2,181,533	$7,090	12/31/2023
ATUS	2,181,533	$7,090	12/31/2023
Bank of America Corp DE	2,017,244	$6,556	12/31/2023
ATUS	2,017,244	$6,556	12/31/2023
Clearline Capital LP	1,693,160	$5,503	12/31/2023
ATUS	1,693,160	$5,503	12/31/2023
State Street Corp	1,574,975	$5,119	12/31/2023
ATUS	1,574,975	$5,119	12/31/2023
Allianz Asset Management GmbH	1,500,079	$4,875	12/31/2023
ATUS	1,500,079	$4,875	12/31/2023
CastleKnight Management LP	1,459,685	$4,744	12/31/2023
ATUS	1,459,685	$4,744	12/31/2023
Deutsche Bank AG	1,369,731	$4,452	12/31/2023
ATUS	1,369,731	$4,452	12/31/2023
BNP Paribas Arbitrage SA		$4,301	12/31/2023
ATUS	1,323,369	$4,301	12/31/2023
Put	1,050	$341	12/31/2023
Call	1,050	$341	12/31/2023
Walleye Capital LLC		$4,074	12/31/2023
ATUS	1,253,544	$4,074	12/31/2023
Put	100	$0	12/31/2023
Tudor Investment Corp Et Al	1,137,697	$3,698	12/31/2023
ATUS	1,137,697	$3,698	12/31/2023
Charles Schwab Investment Management Inc.	1,011,214	$3,286	12/31/2023
ATUS	1,011,214	$3,286	12/31/2023
LSV Asset Management	802,500	$2,608	12/31/2023
ATUS	802,500	$2,608	12/31/2023
Healthcare of Ontario Pension Plan Trust Fund	799,000	$2,597	12/31/2023
ATUS	799,000	$2,597	12/31/2023
National Bank of Canada FI	799,026	$2,565	12/31/2023
ATUS	799,026	$2,565	12/31/2023
Whitebox Advisors LLC	770,291	$2,503	12/31/2023
ATUS	770,291	$2,503	12/31/2023
Eisler Capital US LLC		$2,438	12/31/2023
Call	750,000	$2,438	12/31/2023
Bruni J V & Co. Co.	736,150	$2,392	12/31/2023
ATUS	736,150	$2,392	12/31/2023
Susquehanna International Group LLP		$2,051	12/31/2023
ATUS	715,427	$2,325	12/31/2023
Put	494,600	$1,607	12/31/2023
Call	410,300	$1,333	12/31/2023
Canada Pension Plan Investment Board	595,100	$1,934	12/31/2023
ATUS	595,100	$1,934	12/31/2023
Northern Trust Corp	592,264	$1,925	12/31/2023
ATUS	592,264	$1,925	12/31/2023
Citigroup Inc.	569,859	$1,852	12/31/2023
ATUS	569,859	$1,852	12/31/2023
Paralel Advisors LLC	559,178	$1,817	12/31/2023
ATUS	559,178	$1,817	12/31/2023
Paloma Partners Management Co	550,000	$1,788	12/31/2023
ATUS	550,000	$1,788	12/31/2023
Algert Global LLC	544,207	$1,769	12/31/2023
ATUS	544,207	$1,769	12/31/2023
LB Partners LLC	503,500	$1,636	12/31/2023
ATUS	503,500	$1,636	12/31/2023
Saba Capital Management L.P.		$1,625	12/31/2023
Call	500,000	$1,625	12/31/2023
Readystate Asset Management LP	446,626	$1,452	12/31/2023
ATUS	446,626	$1,452	12/31/2023
Wells Fargo & Company MN	442,599	$1,438	12/31/2023
ATUS	442,599	$1,438	12/31/2023
Barclays PLC	436,188	$1,417	12/31/2023
ATUS	436,188	$1,417	12/31/2023
Mitsubishi UFJ Trust & Banking Corp	407,427	$1,324	12/31/2023
ATUS	407,427	$1,324	12/31/2023
Swiss National Bank	399,700	$1,299	12/31/2023
ATUS	399,700	$1,299	12/31/2023
Bank of Nova Scotia	399,000	$1,297	12/31/2023
ATUS	399,000	$1,297	12/31/2023
Capula Management Ltd	382,767	$1,244	12/31/2023
ATUS	382,767	$1,244	12/31/2023
Two Sigma Advisers LP	381,051	$1,238	12/31/2023
ATUS	381,051	$1,238	12/31/2023
Credit Suisse AG	351,855	$1,144	12/31/2023
ATUS	351,855	$1,144	12/31/2023
ExodusPoint Capital Management LP		$1,131	12/31/2023
Call	300,000	$975	12/31/2023
ATUS	47,991	$156	12/31/2023
Thrivent Financial for Lutherans	322,078	$1,047	12/31/2023
ATUS	322,078	$1,047	12/31/2023
Legal & General Group Plc	320,507	$1,042	12/31/2023
ATUS	320,507	$1,042	12/31/2023
Wolverine Asset Management LLC	307,662	$1,000	12/31/2023
ATUS	307,662	$1,000	12/31/2023
Nomura Holdings Inc.	306,009	$995	12/31/2023
ATUS	306,009	$995	12/31/2023
Lombard Odier Asset Management USA Corp		$975	12/31/2023
Call	300,000	$975	12/31/2023
Group One Trading L.P.		$922	12/31/2023
Call	190,500	$619	12/31/2023
ATUS	142,461	$463	12/31/2023
Put	49,200	$160	12/31/2023
Portland Investment Counsel Inc.	269,679	$876	12/31/2023
ATUS	269,679	$876	12/31/2023
UBS Asset Management Americas Inc.	262,814	$854	12/31/2023
ATUS	262,814	$854	12/31/2023
Arrowstreet Capital Limited Partnership	253,665	$824	12/31/2023
ATUS	253,665	$824	12/31/2023
Alaska Permanent Fund Corp	281,568	$735	03/31/2024
ATUS	281,568	$735	03/31/2024
Verition Fund Management LLC	222,428	$723	12/31/2023
ATUS	222,428	$723	12/31/2023
Rafferty Asset Management LLC	216,938	$705	12/31/2023
ATUS	216,938	$705	12/31/2023
Jane Street Group LLC		$665	12/31/2023
ATUS	331,192	$1,076	12/31/2023
Put	178,100	$579	12/31/2023
Call	51,600	$168	12/31/2023
California State Teachers Retirement System	180,619	$587	12/31/2023
ATUS	180,619	$587	12/31/2023
MHR Fund Management LLC	167,800	$545	12/31/2023
ATUS	167,800	$545	12/31/2023
JPMorgan Chase & Co.		$542	12/31/2023
ATUS	165,951	$539	12/31/2023
Call	800	$3	12/31/2023
Graham Capital Management L.P.	160,488	$522	12/31/2023
ATUS	160,488	$522	12/31/2023
Integrated Investment Consultants LLC	199,100	$520	03/31/2024
ATUS	199,100	$520	03/31/2024
Bank of New York Mellon Corp	146,754	$477	12/31/2023
ATUS	146,754	$477	12/31/2023
Raymond James Trust N.A.	135,129	$439	12/31/2023
ATUS	135,129	$439	12/31/2023
Fiduciary Trust Co.	123,783	$402	12/31/2023
ATUS	123,783	$402	12/31/2023
Lido Advisors LLC	113,463	$369	12/31/2023
ATUS	113,463	$369	12/31/2023
Oppenheimer Asset Management Inc.	112,896	$367	12/31/2023
ATUS	112,896	$367	12/31/2023
Walleye Trading LLC		$367	12/31/2023
Call	159,200	$517	12/31/2023
Put	134,000	$436	12/31/2023
ATUS	87,940	$286	12/31/2023
Susquehanna Portfolio Strategies LLC	112,500	$366	12/31/2023
ATUS	112,500	$366	12/31/2023
Cubist Systematic Strategies LLC	112,045	$364	12/31/2023
ATUS	112,045	$364	12/31/2023
Aquatic Capital Management LLC	106,400	$346	12/31/2023
ATUS	106,400	$346	12/31/2023
Pinnacle Associates Ltd.	101,665	$330	12/31/2023
ATUS	101,665	$330	12/31/2023
AXA S.A.	101,200	$329	12/31/2023
ATUS	101,200	$329	12/31/2023
Janus Henderson Group PLC	96,097	$313	12/31/2023
ATUS	96,097	$313	12/31/2023
Hsbc Holdings PLC	95,658	$311	12/31/2023
ATUS	95,658	$311	12/31/2023
Great West Life Assurance Co. Can	92,529	$299	12/31/2023
ATUS	92,529	$299	12/31/2023
Schonfeld Strategic Advisors LLC		$295	12/31/2023
Call	90,000	$292	12/31/2023
ATUS	800	$3	12/31/2023
Jefferies Financial Group Inc.	87,562	$285	12/31/2023
ATUS	87,562	$285	12/31/2023
Calamos Advisors LLC	82,405	$268	12/31/2023
ATUS	82,405	$268	12/31/2023
XTX Topco Ltd	79,265	$258	12/31/2023
ATUS	79,265	$258	12/31/2023
Brevan Howard Capital Management LP	76,747	$249	12/31/2023
ATUS	76,747	$249	12/31/2023
Brown Brothers Harriman & Co.	73,500	$239	12/31/2023
ATUS	73,500	$239	12/31/2023
Neuberger Berman Group LLC	73,000	$237	12/31/2023
ATUS	73,000	$237	12/31/2023
GTS Securities LLC		$200	12/31/2023
Call	71,400	$232	12/31/2023
Put	35,100	$114	12/31/2023
ATUS	25,187	$82	12/31/2023
Cerity Partners LLC	60,509	$197	12/31/2023
ATUS	60,509	$197	12/31/2023
Price T Rowe Associates Inc. MD	60,131	$196	12/31/2023
ATUS	60,131	$196	12/31/2023
Eos Management L.P.	58,800	$191	12/31/2023
ATUS	58,800	$191	12/31/2023
Connor Clark & Lunn Investment Management Ltd.	58,010	$189	12/31/2023
ATUS	58,010	$189	12/31/2023
Arizona State Retirement System	56,692	$184	12/31/2023
ATUS	56,692	$184	12/31/2023
Envestnet Asset Management Inc.	54,176	$176	12/31/2023
ATUS	54,176	$176	12/31/2023
Wolverine Trading LLC		$175	12/31/2023
Call	53,800	$175	12/31/2023
HRT Financial LP	52,485	$170	12/31/2023
ATUS	52,485	$170	12/31/2023
Equitable Holdings Inc.	50,000	$162	12/31/2023
ATUS	50,000	$162	12/31/2023
Capstone Investment Advisors LLC	44,922	$146	12/31/2023
ATUS	44,922	$146	12/31/2023
Two Sigma Securities LLC	43,959	$143	12/31/2023
ATUS	43,959	$143	12/31/2023
Ironwood Investment Counsel LLC	42,600	$138	12/31/2023
ATUS	42,600	$138	12/31/2023
SG Americas Securities LLC	40,018	$130	12/31/2023
ATUS	40,018	$130	12/31/2023
Invesco Ltd.	39,155	$127	12/31/2023
ATUS	39,155	$127	12/31/2023
Aristeia Capital LLC	37,594	$122	12/31/2023
ATUS	37,594	$122	12/31/2023
South Dakota Investment Council	35,422	$115	12/31/2023
ATUS	35,422	$115	12/31/2023
Creative Planning	35,160	$114	12/31/2023
ATUS	35,160	$114	12/31/2023
Advisory Services Network LLC	33,500	$109	12/31/2023
ATUS	33,500	$109	12/31/2023
State of Wyoming	33,449	$109	12/31/2023
ATUS	33,449	$109	12/31/2023
RPO LLC	33,467	$109	12/31/2023
ATUS	33,467	$109	12/31/2023
Aigen Investment Management LP	33,140	$108	12/31/2023
ATUS	33,140	$108	12/31/2023
Quantbot Technologies LP	31,442	$102	12/31/2023
ATUS	31,442	$102	12/31/2023
Victory Capital Management Inc.	31,185	$101	12/31/2023
ATUS	31,185	$101	12/31/2023
Segantii Capital Management Ltd	30,900	$100	12/31/2023
ATUS	30,900	$100	12/31/2023
Northwestern Mutual Wealth Management Co.	30,410	$99	12/31/2023
ATUS	30,410	$99	12/31/2023
Zurcher Kantonalbank Zurich Cantonalbank	27,335	$89	12/31/2023
ATUS	27,335	$89	12/31/2023
Public Employees Retirement Association of Colorado	26,896	$87	12/31/2023
ATUS	26,896	$87	12/31/2023
Pictet Asset Management Holding SA	26,746	$87	12/31/2023
ATUS	26,746	$87	12/31/2023
Jump Financial LLC	25,912	$84	12/31/2023
ATUS	25,912	$84	12/31/2023
Ritholtz Wealth Management	23,038	$75	12/31/2023
ATUS	23,038	$75	12/31/2023
American Century Companies Inc.	22,088	$72	12/31/2023
ATUS	22,088	$72	12/31/2023
Raymond James Financial Services Advisors Inc.	22,083	$72	12/31/2023
ATUS	22,083	$72	12/31/2023
Wealth Enhancement Advisory Services LLC	27,061	$71	03/31/2024
ATUS	27,061	$71	03/31/2024
Squarepoint Ops LLC	20,523	$67	12/31/2023
ATUS	20,523	$67	12/31/2023
State of Wisconsin Investment Board	19,227	$62	12/31/2023
ATUS	19,227	$62	12/31/2023
Man Group plc	19,201	$62	12/31/2023
ATUS	19,201	$62	12/31/2023
Cetera Advisor Networks LLC	18,677	$61	12/31/2023
ATUS	18,677	$61	12/31/2023
Obermeyer Wood Investment Counsel Lllp	18,000	$58	12/31/2023
ATUS	18,000	$58	12/31/2023
Boothbay Fund Management LLC	15,060	$49	12/31/2023
ATUS	15,060	$49	12/31/2023
Clear Harbor Asset Management LLC		$47	12/31/2023
ATUS	8,220	$27	12/31/2023
Call	6,000	$20	12/31/2023
Quadrature Capital Ltd	14,484	$47	12/31/2023
ATUS	14,484	$47	12/31/2023
Gotham Asset Management LLC	13,045	$42	12/31/2023
ATUS	13,045	$42	12/31/2023
Rhumbline Advisers	10,743	$35	12/31/2023
ATUS	10,743	$35	12/31/2023
Cambridge Investment Research Advisors Inc.	10,327	$34	12/31/2023
ATUS	10,327	$34	12/31/2023
Montag A & Associates Inc.	10,000	$32	12/31/2023
ATUS	10,000	$32	12/31/2023
Simplex Trading LLC		$31	12/31/2023
Put	212,200	$689	12/31/2023
Call	141,100	$458	12/31/2023
ATUS	80,846	$262	12/31/2023
Russell Investments Group Ltd.	8,854	$29	12/31/2023
ATUS	8,854	$29	12/31/2023
Tower Research Capital LLC TRC	7,228	$23	12/31/2023
ATUS	7,228	$23	12/31/2023
Covestor Ltd	7,058	$23	12/31/2023
ATUS	7,058	$23	12/31/2023
Pin Oak Investment Advisors Inc.	4,335	$14	12/31/2023
ATUS	4,335	$14	12/31/2023
IFP Advisors Inc	3,700	$12	12/31/2023
ATUS	3,700	$12	12/31/2023
Advisor Group Holdings Inc.	2,679	$9	12/31/2023
ATUS	2,679	$9	12/31/2023
Comerica Bank	2,506	$8	12/31/2023
ATUS	2,506	$8	12/31/2023
Steward Partners Investment Advisory LLC	2,000	$6	12/31/2023
ATUS	2,000	$6	12/31/2023
Manchester Capital Management LLC	1,500	$5	12/31/2023
ATUS	1,500	$5	12/31/2023
Deseret Mutual Benefit Administrators	1,201	$4	12/31/2023
ATUS	1,201	$4	12/31/2023
Spire Wealth Management	776	$3	12/31/2023
ATUS	776	$3	12/31/2023
Credit Agricole S A	700	$2	12/31/2023
ATUS	700	$2	12/31/2023
Mather Group LLC.	432	$1	03/31/2024
ATUS	432	$1	03/31/2024
Pinnacle Bank	357	$1	03/31/2024
ATUS	357	$1	03/31/2024
Principal Securities Inc.	197	$1	12/31/2023
ATUS	197	$1	12/31/2023
Private Trust Co. NA	361	$1	12/31/2023
ATUS	361	$1	12/31/2023
Castleview Partners LLC	200	$1	12/31/2023
ATUS	200	$1	12/31/2023
SYSTM Wealth Solutions LLC	327	$1	12/31/2023
ATUS	327	$1	12/31/2023
CWM LLC	74	$0	03/31/2024
ATUS	74	$0	03/31/2024
SJS Investment Consulting Inc.	10	$0	03/31/2024
ATUS	10	$0	03/31/2024
Proequities Inc.		$0	12/31/2023
Put	0	$0	12/31/2023
ATUS	0	$0	12/31/2023
Call	0	$0	12/31/2023
JFS Wealth Advisors LLC	65	$0	12/31/2023
ATUS	65	$0	12/31/2023
Quent Capital LLC	121	$0	12/31/2023
ATUS	121	$0	12/31/2023
DiNuzzo Private Wealth Inc.	44	$0	12/31/2023
ATUS	44	$0	12/31/2023
Wetzel Investment Advisors Inc.	21	$0	12/31/2023
ATUS	21	$0	12/31/2023
Royal Bank of Canada	279,203	$-2,343	12/31/2023
Put	1,000,000	$3,250	12/31/2023
ATUS	279,203	$907	12/31/2023