ATOS (ATOS) Institutional Ownership Changes & 13F Activity
ATOS. Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Ameriprise Financial Inc, Millennium Management Llc, Jacobs Levy Equity Management, Inc, Citadel Advisors Llc, and State Street Corp.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Robinswood Financial Llc | Buy | +2,557 | — | 2,557 | $1.51K | Q4 2025 | Jul 14, 2026 |
| Raymond James Financial Inc | Buy | +11,323 | — | 11,323 | $6.68K | Q4 2025 | Feb 18, 2026 |
| Newedge Advisors, Llc | Buy | +5,000 | — | 5,000 | $2.95K | Q4 2025 | Feb 18, 2026 |
| Ameriprise Financial Inc | Buy | +3,791,061 | — | 3,791,061 | $2.24M | Q4 2025 | Feb 17, 2026 |
| Millennium Management Llc | Buy | +1,242,868 | — | 1,242,868 | $733.29K | Q4 2025 | Feb 17, 2026 |
| Citadel Advisors Llc | Buy | +648,115 | — | 648,115 | $382.39K | Q4 2025 | Feb 17, 2026 |
| Susquehanna International Group, Llp | Buy | +582,587 | — | 582,587 | $343.73K | Q4 2025 | Feb 17, 2026 |
| Northern Trust Corp | Buy | +288,399 | — | 288,399 | $170.16K | Q4 2025 | Feb 17, 2026 |
| Graham Capital Management, L.P. | Buy | +211,369 | — | 211,369 | $124.71K | Q4 2025 | Feb 17, 2026 |
| Xtx Topco Ltd | Buy | +169,261 | — | 169,261 | $99.86K | Q4 2025 | Feb 17, 2026 |
| Qube Research & Technologies Ltd | Buy | +72,802 | — | 72,802 | $42.95K | Q4 2025 | Feb 17, 2026 |
| Bank Of America Corp | Buy | +67,654 | — | 67,654 | $39.92K | Q4 2025 | Feb 17, 2026 |
| Point72 Asset Management, L.P. | Buy | +48,092 | — | 48,092 | $28.37K | Q4 2025 | Feb 17, 2026 |
| &Partners | Buy | +43,000 | — | 43,000 | $25.37K | Q4 2025 | Feb 17, 2026 |
| Two Sigma Securities, Llc | Buy | +24,508 | — | 24,508 | $14.46K | Q4 2025 | Feb 17, 2026 |
| Two Sigma Investments, Lp | Buy | +23,452 | — | 23,452 | $13.84K | Q4 2025 | Feb 17, 2026 |
| Two Sigma Advisers, Lp | Buy | +18,300 | — | 18,300 | $10.80K | Q4 2025 | Feb 17, 2026 |
| Osaic Holdings, Inc. | Buy | +8,847 | — | 8,847 | $5.22K | Q4 2025 | Feb 17, 2026 |
| Fmr Llc | Buy | +7,365 | — | 7,365 | $4.34K | Q4 2025 | Feb 17, 2026 |
| Rockefeller Capital Management L.P. | Buy | +5,000 | — | 5,000 | $2.95K | Q4 2025 | Feb 17, 2026 |
| Tower Research Capital Llc (Trc) | Buy | +3,999 | — | 3,999 | $2.36K | Q4 2025 | Feb 17, 2026 |
| Royal Bank Of Canada | Buy | +943 | — | 943 | $1.00K | Q4 2025 | Feb 17, 2026 |
| Optiver Holding B.V. | Buy | +838 | — | 838 | $494.00 | Q4 2025 | Feb 17, 2026 |
| Jones Financial Companies Lllp | Buy | +700 | — | 700 | $413.00 | Q4 2025 | Feb 17, 2026 |
| Jacobs Levy Equity Management, Inc | Buy | +1,048,289 | — | 1,048,289 | $618.49K | Q4 2025 | Feb 13, 2026 |
| State Street Corp | Buy | +596,485 | — | 596,485 | $351.93K | Q4 2025 | Feb 13, 2026 |
| Charles Schwab Investment Management Inc | Buy | +80,000 | — | 80,000 | $47.20K | Q4 2025 | Feb 13, 2026 |
| Morgan Stanley | Buy | +61,500 | — | 61,500 | $36.28K | Q4 2025 | Feb 13, 2026 |
| Wells Fargo & Company/Mn | Buy | +83 | — | 83 | $49.00 | Q4 2025 | Feb 13, 2026 |
| Arax Advisory Partners | Buy | +42 | — | 42 | $25.00 | Q4 2025 | Feb 13, 2026 |
Frequently asked questions about ATOS activity
Which institutional owners are buying ATOS?
Institutional owners buying ATOS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in ATOS activity?
"Buy" means an investor increased their reported position in ATOS compared to the prior reporting period. This reflects growing exposure to ATOS rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ATOS increasing?
Institutional interest in ATOS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.