The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query ATOS owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/ATOS"
Use Arkolith to show who owns ATOS, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD FIDUCIARY TRUST CO | $275K | 52K | ▲New +52K sh | Q1 2026 | |
| 2 | STATE STREET CORP | $209K | 40K | ▼−93% Reduced · −557K sh | Q1 2026 | |
| 3 | GROUP ONE TRADING LLC | $3K | 609 | ▼−91% Reduced · −6K sh | Q1 2026 | |
| 4 | NewEdge Advisors, LLC | $2K | 333 | ▼−93% Reduced · −5K sh | Q1 2026 | |
| 5 | SBI Securities Co., Ltd. | $594 | 113 | ▼−93% Reduced · −1K sh | Q1 2026 | |
| 6 | TD Waterhouse Canada Inc. | $525 | 103 | ▼−93% Reduced · −1K sh | Q1 2026 | |
| 7 | Clearstead Advisors, LLC | $22 | 4 | ▼−94% Reduced · −66 sh | Q1 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Mar 27, 2026 | QUAY STEVEN C | President & CEO, Director | Grant (A) | 65K | $0 |
| Mar 26, 2026 | Daniel Mark James | Chief Financial Officer | Grant (A) | 63K | $0 |
| Jan 20, 2026 | QUAY STEVEN C | President & CEO, Director | Grant (A) | 332K | $0 |
| Jan 20, 2026 | QUAY STEVEN C | President & CEO, Director | Grant (A) | 950K | $570K |
| Oct 14, 2025 | Daniel Mark James | Chief Financial Officer | Grant (A) | 578K | $0 |
| May 21, 2025 | QUAY STEVEN C | President & CEO, Director | Buy (P) | 11K | $10K |
| May 15, 2025 | Cigler Tessa | Director | Grant (A) | 125K | $0 |
| May 15, 2025 | Remmel H. Lawrence | Director | Grant (A) | 125K | $0 |
| May 15, 2025 | Galli Stephen J | Director | Grant (A) | 125K | $0 |
| May 15, 2025 | Rees Heather | Chief Financial Officer | Grant (A) | 544K | $0 |
| May 15, 2025 | QUAY STEVEN C | President & CEO, Director | Grant (A) | 1.4M | $0 |
| May 15, 2025 | Chen Shu-Chih | Director | Grant (A) | 125K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| TORONTO-DOMINION BANKTD | 5 funds | $1.9B |
| MICROSOFT CORPMSFT | 5 funds | $1.8B |
| AMAZON.COM INCAMZN | 5 funds | $1.2B |
| JPMORGAN CHASE & COJPM | 5 funds | $1.1B |
| ALPHABET INC-CL AGOOGL | 5 funds | $998.0M |
| AGNICO EAGLE MINES LTDAEM | 5 funds | $781.3M |
| SUNCOR ENERGY INCSU | 5 funds | $736.2M |
| BROADCOM INCAVGO | 5 funds | $721.3M |
| VISA INC-CLASS A SHARESV | 5 funds | $630.9M |
| MANULIFE FINANCIAL CORPMFC | 5 funds | $582.0M |
| META PLATFORMS INC-CLASS AMETA | 5 funds | $572.6M |
| BROOKFIELD CORPBN | 5 funds | $556.0M |
Ranked by how many of ATOS's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
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. Every panel above is one call to the Arkolith API & MCP server.