Among active 13F managers last quarter, 3 opened and 1 added, while 3 reduced; the largest holder to move was Renaissance Technologies LLC (−95%). No open-market insider trades in the last 180 days.
No leg leans either way.
31 tracked 13F filers disclose a position in ATOS as of the latest SEC 13F filings, a combined $4.3M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Vanguard Capital Management LLC | 362K | $698K | ▲+3.6% Added · +13K sh | Q2 2026 | |
| 2 | Ameriprise Financial Inc | 255K | $1.3M | ▼−93% Reduced · −3.5M sh | Q1 2026 | |
| 3 | BlackRock, Inc. | 164K | $317K | ▲+23% Added · +31K sh | Q2 2026 | |
| 4 | Renaissance Technologies LLC | 109K | $573K | ▼−95% Reduced · −2.0M sh | Q1 2026 | |
| 5 | Geode Capital Management, LLC | 92K | $178K | ▼−4.8% Reduced · −5K sh | Q2 2026 | |
| 6 | UBS Group AG | 92K | $484K | ▼−76% Reduced · −298K sh | Q1 2026 | |
| 7 | Millennium Management LLC | 67K | $351K | ▼−95% Reduced · −1.2M sh | Q1 2026 | |
| 8 | Vanguard Fiduciary Trust Co | 53K | $101K | ▲+0.7% Added · +348 sh | Q2 2026 | |
| 9 | State Street Corp | 40K | $77K | —Held | Q2 2026 | |
| 10 | Northern Trust Corp | 19K | $101K | ▼−93% Reduced · −269K sh | Q1 2026 | |
| 11 | Morgan Stanley | 16K | $85K | ▼−74% Reduced · −45K sh | Q1 2026 | |
| 12 | Vanguard Global Advisers, LLC | 3K | $6K | —Held | Q2 2026 | |
| 13 | Jones Financial Companies LLLP | 2K | $10K | ▲+194% Added · +1K sh | Q1 2026 | |
| 14 | MCF Advisors LLC | 1K | $2K | ▲New +1K sh | Q2 2026 | |
| 15 | Tower Research Capital LLC (TRC) | 863 | $5K | ▼−78% Reduced · −3K sh | Q1 2026 | |
| 16 | Royal Bank Of Canada | 644 | $3K | ▼−32% Reduced · −299 sh | Q1 2026 | |
| 17 | Osaic Holdings, Inc. | 587 | $3K | ▼−93% Reduced · −8K sh | Q1 2026 | |
| 18 | JPMorgan Chase & Co | 383 | $2K | ▼−99% Reduced · −38K sh | Q1 2026 | |
| 19 | Rockefeller Capital Management L.P. | 353 | $2K | ▼−93% Reduced · −5K sh | Q1 2026 | |
| 20 | Wells Fargo & Company | 296 | $2K | ▲+257% Added · +213 sh | Q1 2026 | |
| 21 | SBI Securities Co., Ltd. | 148 | $286 | ▲+31% Added · +35 sh | Q2 2026 | |
| 22 | Harbour Investments, Inc. | 110 | $579 | ▲New +110 sh | Q1 2026 | |
| 23 | TD Waterhouse Canada Inc. | 103 | $210 | —Held | Q2 2026 | |
| 24 | BNP Paribas Financial Markets | 98 | $515 | ▼−93% Reduced · −1K sh | Q1 2026 | |
| 25 | Group One Trading LLC | 54 | $104 | ▼−91% Reduced · −555 sh | Q2 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 3 funds opened a new position in ATOS and 1 added to an existing one, while 3 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Their position there |
|---|---|---|
| Nvidia CorpNVDA | 9 funds | $3.0B |
| Apple IncAAPL | 9 funds | $2.7B |
| Micron Technology IncMU | 9 funds | $1.6B |
| Taiwan Semiconductor-SP ADRTSM | 9 funds | $1.0B |
| Alphabet Inc-CL AGOOGL | 9 funds | $964.6M |
| Tesla IncTSLA | 9 funds | $888.7M |
| Chevron CorpCVX | 9 funds | $852.9M |
| Bank Of America CorpBAC | 9 funds | $792.0M |
| Alphabet Inc-CL CGOOG | 9 funds | $764.0M |
| JPMorgan Chase & CoJPM | 9 funds | $716.1M |
| Unitedhealth Group IncUNH | 9 funds | $709.2M |
| Mastercard Inc - AMA | 9 funds | $561.6M |
Ranked by how many of ATOS's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in ATOS.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| May 21, 2025 | Quay Steven C | President & CEO, Director | Buy (P) | 11K | $10K |
| Mar 26, 2025 | Remmel H. Lawrence | Director | Buy (P) | 10K | $7K |
| Apr 10, 2024 | Finn Jonathan | Director | Buy (P) | 25K | $44K |
| Nov 15, 2023 | Weaver Gregory L | Former EVP, CFO, & Director, Director | Sell (S) | 50K | $33K |
| Jun 20, 2023 | Weaver Gregory L | EVP & CFO, Director | Buy (P) | 50K | $49K |
| Jul 2, 2021 | Weaver Gregory L | Director | Sell (S) | 107K | $600K |
| Nov 15, 2017 | Guse Kyle | CFO, Gen Counsel and Secretary | Buy (P) 2 lots, same day | 10K | $3K |
| Apr 17, 2017 | Remmel H. Lawrence | Director | Buy (P) | 3K | $2K |
| Apr 1, 2016 | Remmel H. Lawrence | Director | Buy (P) | 2K | $495 |
| Mar 9, 2016 | Quay Steven C | President & CEO, Director, 10% Owner | Buy (P) | 15K | $6K |
| Mar 9, 2016 | Chen Shu-Chih | Director, 10% Owner | Buy (P) | 15K | $6K |
| Feb 16, 2016 | Chen Shu-Chih | Director, 10% Owner | Buy (P) | 15K | $8K |
One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.
Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.
Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive
| Source | Buying | Selling | Net |
|---|---|---|---|
13F funds Top 100 holders by value, passive included; the hero counts active managers only | 6 | 16 | – |
Insiders Form 4 open-market | 0 | 0 | $0 |
US House STOCK Act trades | 0 | 0 | $0 |
Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.
| Class | 13F holders | Value held |
|---|---|---|
| ATOSthis pageStock | 31 funds | $4.3M |
| ATOSEURCOM | 1 funds | $11K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for ATOS
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/ATOS/capital-change-brief"
Use Arkolith's capital_change_brief for ATOS. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ATOS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.