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 QTTB 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/QTTB"
Use Arkolith to show who owns QTTB, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | ORBIMED ADVISORS LLC | $14.5M | 2.3M | —Held | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $1.1M | 321K | ▲+8.7% Added · +26K sh | Q4 2025 | |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | $759K | 118K | ▲+11% Added · +12K sh | Q1 2026 | |
| 4 | BlackRock, Inc. | $553K | 86K | ▲+44% Added · +26K sh | Q1 2026 | |
| 5 | VANGUARD FIDUCIARY TRUST CO | $321K | 50K | ▲New +50K sh | Q1 2026 | |
| 6 | STATE STREET CORP | $267K | 42K | ▲+95% Added · +20K sh | Q1 2026 | |
| 7 | CITADEL ADVISORS LLC | $99K | 15K | ▼−66% Reduced · −30K sh | Q1 2026 | |
| 8 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $81K | 13K | ▲New +13K sh | Q1 2026 | |
| 9 | FMR LLC | $22K | 3K | ▲+1.1% Added · +36 sh | Q1 2026 | |
| 10 | Arax Advisory Partners | $7K | 1K | ▲+3.3% Added · +37 sh | Q1 2026 | |
| 11 | NISA INVESTMENT ADVISORS, LLC | $1K | 166 | —Held | Q1 2026 | |
| 12 | SBI Securities Co., Ltd. | $668 | 104 | ▼−34% Reduced · −53 sh | Q1 2026 | |
| 13 | Federation des caisses Desjardins du Quebec | $446 | 70 | —Held | Q1 2026 | |
| 14 | CWM, LLC | $250 | 39 | ▼−28% Reduced · −15 sh | Q1 2026 | |
| 15 | GROUP ONE TRADING LLC | $218 | 34 | —Held | Q1 2026 | |
| 16 | AdvisorNet Financial, Inc | $13 | 2 | —Held | Q1 2026 | |
| 17 | DANSKE BANK A/S | $6 | 1 | —Held | 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 |
|---|---|---|---|---|---|
| Feb 25, 2026 | Violette Shelia M. | Chief Scientific Officer | Sell (S) | 3K | $13K |
| Feb 25, 2026 | Kalowski Lee | CFO and President | Sell (S) | 4K | $18K |
| Feb 25, 2026 | Morrison Jodie Pope | CEO, Director | Sell (S) | 10K | $45K |
| Feb 24, 2026 | Violette Shelia M. | Chief Scientific Officer | Grant (A) | 38K | $0 |
| Feb 24, 2026 | Morrison Jodie Pope | CEO, Director | Grant (A) | 132K | $0 |
| Feb 24, 2026 | Kalowski Lee | CFO and President | Grant (A) | 53K | $0 |
| Jan 15, 2026 | Lundberg Sven Ante | Director | Grant (A) | 20K | $56K |
| Jan 15, 2026 | GRAYZEL DAVID S. | Director | Grant (A) | 16K | $45K |
| Jan 15, 2026 | LAPORTE KATHLEEN | Director | Grant (A) | 23K | $64K |
| Dec 2, 2025 | Morrison Jodie Pope | CEO, Director | Sell (S) | 23K | $78K |
| Dec 2, 2025 | Kalowski Lee | CFO and President | Sell (S) | 9K | $31K |
| Oct 23, 2025 | Iwicki Mark T | Director | Grant (A) | 54K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| ELI LILLY & COLLY | 12 funds | $2.1B |
| UNITED THERAPEUTICS CORPUTHR | 12 funds | $253.3M |
| ALNYLAM PHARMACEUTICALS INCALNY | 12 funds | $85.1M |
| MICROSOFT CORPMSFT | 11 funds | $7.0B |
| AMAZON.COM INCAMZN | 11 funds | $6.4B |
| ALPHABET INC-CL AGOOGL | 11 funds | $4.8B |
| BROADCOM INCAVGO | 11 funds | $3.9B |
| META PLATFORMS INC-CLASS AMETA | 11 funds | $3.4B |
| JPMORGAN CHASE & COJPM | 11 funds | $2.8B |
| TESLA INCTSLA | 11 funds | $2.3B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 11 funds | $1.8B |
| JOHNSON & JOHNSONJNJ | 11 funds | $1.7B |
Ranked by how many of QTTB'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 QTTB. 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.