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 QUBT 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/QUBT"
Use Arkolith to show who owns QUBT, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $172.8M | 16.8M | ▲+38% Added · +4.6M sh | Q4 2025 | |
| 2 | BlackRock, Inc. | $110.6M | 16.1M | ▼−3.0% Reduced · −508K sh | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $46.0M | 6.7M | ▲New +6.7M sh | Q1 2026 | |
| 4 | GEODE CAPITAL MANAGEMENT, LLC | $32.2M | 4.7M | ▲+3.0% Added · +135K sh | Q1 2026 | |
| 5 | STATE STREET CORP | $30.9M | 4.5M | ▲+4.0% Added · +173K sh | Q1 2026 | |
| 6 | Marex Group plc | $30.7M | 4.5M | ▼−46% Reduced · −3.8M sh | Q1 2026 | |
| 7 | CAPITAL FUND MANAGEMENT S.A. | $11.7M | 1.7M | ▼−25% Reduced · −552K sh | Q1 2026 | |
| 8 | VANGUARD FIDUCIARY TRUST CO | $9.2M | 1.3M | ▲New +1.3M sh | Q1 2026 | |
| 9 | CITADEL ADVISORS LLC | $5.9M | 861K | ▼−64% Reduced · −1.5M sh | Q1 2026 | |
| 10 | Clear Street Group Inc. | $5.8M | 842K | ▼−27% Reduced · −308K sh | Q1 2026 | |
| 11 | Engineers Gate Manager LP | $4.5M | 659K | ▲New +659K sh | Q1 2026 | |
| 12 | Quadrature Capital Ltd | $1.4M | 209K | ▼−28% Reduced · −80K sh | Q1 2026 | |
| 13 | FOUNDATIONS INVESTMENT ADVISORS, LLC | $1.3M | 190K | ▲+12% Added · +20K sh | Q1 2026 | |
| 14 | LOS ANGELES CAPITAL MANAGEMENT LLC | $1.3M | 186K | ▲+558% Added · +157K sh | Q1 2026 | |
| 15 | SBI Securities Co., Ltd. | $963K | 141K | ▼−11% Reduced · −17K sh | Q1 2026 | |
| 16 | Concurrent Investment Advisors, LLC | $894K | 131K | ▲+13% Added · +15K sh | Q1 2026 | |
| 17 | MetLife Investment Management, LLC | $776K | 113K | ▲+1.2% Added · +1K sh | Q1 2026 | |
| 18 | GROUP ONE TRADING LLC | $709K | 103K | ▼−81% Reduced · −432K sh | Q1 2026 | |
| 19 | Zurcher Kantonalbank (Zurich Cantonalbank) | $593K | 87K | ▲+26% Added · +18K sh | Q1 2026 | |
| 20 | Vident Advisory, LLC | $524K | 76K | ▲+59% Added · +28K sh | Q1 2026 | |
| 21 | BANQUE PICTET & CIE SA | $493K | 72K | —Held | Q1 2026 | |
| 22 | CREDIT AGRICOLE S A | $440K | 64K | ▲New +64K sh | Q1 2026 | |
| 23 | PEAK6 LLC | $397K | 58K | ▲Added Added · +58K sh | Q1 2026 | |
| 24 | Police & Firemen's Retirement System of New Jersey | $371K | 54K | —Held | Q1 2026 | |
| 25 | Hennion & Walsh Asset Management, Inc. | $348K | 51K | ▲+39% Added · +14K 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 11, 2026 | Roberts Christopher Bruce | CFO and General Counsel | Sell (S) | 9K | $73K |
| Mar 10, 2026 | Roberts Christopher Bruce | CFO and General Counsel | Option exercise (M) | 400K | $2.7M |
| Mar 10, 2026 | Roberts Christopher Bruce | CFO and General Counsel | Sell (S) | 69K | $541K |
| Mar 10, 2026 | Roberts Christopher Bruce | CFO and General Counsel | Option exercise (M) | 400K | $0 |
| Jan 7, 2026 | Begliarbekov Milan | Chief Operating Officer | Sell (S) | 3K | $34K |
| Dec 31, 2025 | Begliarbekov Milan | Chief Operating Officer | Grant (A) | 14K | $139K |
| Sep 15, 2025 | FAGENSON ROBERT B | Director | Sell (S) | 5K | $84K |
| Sep 12, 2025 | Huang Yuping | CEO, President, Director, 10% Owner | Gift (G) | 400K | $0 |
| Sep 12, 2025 | FAGENSON ROBERT B | Director | Sell (S) | 15K | $234K |
| Sep 11, 2025 | FAGENSON ROBERT B | Director | Sell (S) | 30K | $469K |
| Sep 10, 2025 | FAGENSON ROBERT B | Director | Sell (S) | 35K | $543K |
| Sep 9, 2025 | FAGENSON ROBERT B | Director | Sell (S) | 15K | $225K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 90 funds | $37.8B |
| JPMORGAN CHASE & COJPM | 90 funds | $12.5B |
| ELI LILLY & COLLY | 90 funds | $9.1B |
| MICRON TECHNOLOGY INCMU | 89 funds | $7.1B |
| MASTERCARD INC - AMA | 89 funds | $6.7B |
| COSTCO WHOLESALE CORPCOST | 89 funds | $5.8B |
| UNITEDHEALTH GROUP INCUNH | 89 funds | $3.7B |
| MCDONALD'S CORPMCD | 89 funds | $3.7B |
| CITIGROUP INCC | 89 funds | $2.9B |
| INTUITIVE SURGICAL INCISRG | 89 funds | $2.8B |
| ALPHABET INC-CL AGOOGL | 88 funds | $23.7B |
| META PLATFORMS INC-CLASS AMETA | 88 funds | $17.1B |
Ranked by how many of QUBT'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 QUBT. 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.