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Institutional Holders of ATOS

There is a long list of 51 institutional holders of ATOS within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of ATOS by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-ATOS table below, the initial column indicates the name of each top institutional holder of ATOS, with a link to that fund's top holdings. The next columns indicate the amount of ATOS stock held by each of the institutional holders of ATOS, followed by the ATOS position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

HolderAmountPosition Size
($ in 1000's)
 As of
Vanguard Group Inc.5,675,724$4,995 12/31/2023
     ATOS5,675,724$4,995 12/31/2023
BlackRock Inc.2,796,437$2,461 12/31/2023
     ATOS2,796,437$2,461 12/31/2023
Laurion Capital Management LP2,225,800$1,959 12/31/2023
     ATOS2,225,800$1,959 12/31/2023
Renaissance Technologies LLC1,284,270$1,130 12/31/2023
     ATOS1,284,270$1,130 12/31/2023
Geode Capital Management LLC1,114,924$981 12/31/2023
     ATOS1,114,924$981 12/31/2023
GSA Capital Partners LLP449,082$395 12/31/2023
     ATOS449,082$395 12/31/2023
Group One Trading L.P. $391 12/31/2023
     Call331,400$292 12/31/2023
     ATOS115,249$101 12/31/2023
     Put2,300$2 12/31/2023
State Street Corp436,271$384 12/31/2023
     ATOS436,271$384 12/31/2023
Bank of Montreal Can352,700$310 12/31/2023
     ATOS352,700$310 12/31/2023
Susquehanna International Group LLP $240 12/31/2023
     ATOS204,945$180 12/31/2023
     Call67,800$60 12/31/2023
Northern Trust Corp227,922$201 12/31/2023
     ATOS227,922$201 12/31/2023
Two Sigma Investments LP161,320$142 12/31/2023
     ATOS161,320$142 12/31/2023
Simplex Trading LLC $136 03/31/2024
     ATOS55,589$100 03/31/2024
     Call40,000$72 03/31/2024
     Put20,500$36 03/31/2024
Connor Clark & Lunn Investment Management Ltd.120,328$106 12/31/2023
     ATOS120,328$106 12/31/2023
Morgan Stanley114,806$101 12/31/2023
     ATOS114,806$101 12/31/2023
Mariner LLC105,910$93 12/31/2023
     ATOS105,910$93 12/31/2023
XTX Topco Ltd85,369$75 12/31/2023
     ATOS85,369$75 12/31/2023
Caption Management LLC $66 12/31/2023
     Call75,000$66 12/31/2023
Squarepoint Ops LLC63,065$55 12/31/2023
     ATOS63,065$55 12/31/2023
Regions Financial Corp30,000$54 03/31/2024
     ATOS30,000$54 03/31/2024
Edmond DE Rothschild Holding S.A.50,000$44 12/31/2023
     ATOS50,000$44 12/31/2023
PFG Investments LLC23,650$43 03/31/2024
     ATOS23,650$43 03/31/2024
Millennium Management LLC47,271$42 12/31/2023
     ATOS47,271$42 12/31/2023
LPL Financial LLC46,992$41 12/31/2023
     ATOS46,992$41 12/31/2023
Charles Schwab Investment Management Inc.45,962$40 12/31/2023
     ATOS45,962$40 12/31/2023
LVM Capital Management Ltd. MI21,000$38 03/31/2024
     ATOS21,000$38 03/31/2024
Commonwealth Equity Services LLC33,345$29 12/31/2023
     ATOS33,345$29 12/31/2023
Bank of New York Mellon Corp12,626$23 03/31/2024
     ATOS12,626$23 03/31/2024
Two Sigma Advisers LP25,200$22 12/31/2023
     ATOS25,200$22 12/31/2023
Raymond James Financial Services Advisors Inc.10,815$19 03/31/2024
     ATOS10,815$19 03/31/2024
Advisor Group Holdings Inc.11,550$10 12/31/2023
     ATOS11,550$10 12/31/2023
J. L. Bainbridge & Co. Inc.11,121$10 12/31/2023
     ATOS11,121$10 12/31/2023
Tower Research Capital LLC TRC 10,749$9 12/31/2023
     ATOS10,749$9 12/31/2023
Atria Wealth Solutions Inc.10,000$9 12/31/2023
     ATOS10,000$9 12/31/2023
FMR LLC4,163$4 12/31/2023
     ATOS4,163$4 12/31/2023
BNP Paribas Arbitrage SA4,555$4 12/31/2023
     ATOS4,555$4 12/31/2023
St. Johns Investment Management Company LLC1,550$3 03/31/2024
     ATOS1,550$3 03/31/2024
Bank of America Corp DE2,116$2 12/31/2023
     ATOS2,116$2 12/31/2023
Harbour Investments Inc.1,711$2 12/31/2023
     ATOS1,711$2 12/31/2023
Allworth Financial LP702$1 03/31/2024
     ATOS702$1 03/31/2024
Wells Fargo & Company MN910$1 12/31/2023
     ATOS910$1 12/31/2023
TD Waterhouse Canada Inc.700$1 12/31/2023
     ATOS700$1 12/31/2023
NBC Securities Inc.150$0 03/31/2024
     ATOS150$0 03/31/2024
JPMorgan Chase & Co.94$0 12/31/2023
     ATOS94$0 12/31/2023
Proequities Inc. $0 12/31/2023
     Put0$0 12/31/2023
     ATOS0$0 12/31/2023
     Call0$0 12/31/2023
Clearstead Advisors LLC70$0 12/31/2023
     ATOS70$0 12/31/2023
Royal Bank of Canada86$0 12/31/2023
     ATOS86$0 12/31/2023
UBS Group AG30$0 12/31/2023
     ATOS30$0 12/31/2023
Qube Research & Technologies Ltd54$0 12/31/2023
     ATOS54$0 12/31/2023
Castleview Partners LLC500$0 12/31/2023
     ATOS500$0 12/31/2023

See All: Funds Holding ATOS
See Details: Top 10 Hedge Funds Holding ATOS
Also See: ATOS Insider Buying
Also See: ATOS Holdings Changes

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