Xencor Inc XNCR
CIK 0001326732 · CUSIP 98401F105
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $138.50M 11,807,227 shares | 0.00% | -48.03K(-0.40%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 02 | PRIMECAP MANAGEMENT CO/CA/ CIK 763212 · View history | $125.22M 10,675,022 shares | 0.10% | +147.70K(+1.40%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 03 | VANGUARD GROUP INC CIK 102909 · View history | $83.33M 7,103,758 shares | 0.00% | -1.52M(-17.60%)Reduced | SEC filing ↗ Nov 7, 2025 | ▾ |
| 04 | RTW INVESTMENTS, LP CIK 1493215 · View history | $72.97M 6,221,054 shares | 0.90% | +3.82M(+158.90%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 05 | EcoR1 Capital, LLC CIK 1587114 · View history | $72.08M 6,144,767 shares | 3.46% | 0(0.00%)Unchanged | SEC filing ↗ Nov 14, 2025 | ▾ |
| 06 | STATE STREET CORP CIK 93751 · View history | $43.09M 3,673,831 shares | 0.00% | -143.78K(-3.80%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 07 | BVF INC/IL CIK 1056807 · View history | $32.14M 2,740,141 shares | 1.30% | 0(0.00%)Unchanged | SEC filing ↗ Nov 14, 2025 | ▾ |
| 08 | TCG Crossover Management, LLC CIK 1839948 · View history | $28.76M 2,452,138 shares | 1.41% | 0(0.00%)Unchanged | SEC filing ↗ Nov 17, 2025 | ▾ |
| 09 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $20.28M 1,728,825 shares | 0.00% | +25.16K(+1.50%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 10 | PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history | $19.86M 1,693,292 shares | 0.00% | -2.07M(-55.00%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 11 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $18.64M 1,588,963 shares | 0.00% | -191.61K(-10.80%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 12 | Legal & General Group Plc CIK 764068 · View history | $14.93M 1,273,000 shares | 0.00% | +1.09M(+603.70%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 13 | BRAIDWELL LP CIK 1920938 · View history | $14.62M 1,246,280 shares | 0.43% | -409.41K(-24.70%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 14 | UBS Group AG CIK 1610520 · View history | $13.79M 1,175,267 shares | 0.00% | +399.07K(+51.40%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 15 | BAKER BROS. ADVISORS LP CIK 1263508 · View history | $12.93M 1,102,106 shares | 0.09% | +431.68K(+64.40%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 16 | Nantahala Capital Management, LLC CIK 1472322 · View history | $12.90M 1,100,000 shares | 0.80% | +279.90K(+34.10%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 17 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $11.93M 1,017,453 shares | 0.00% | +301.06K(+42.00%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 18 | MORGAN STANLEY CIK 895421 · Amended · View history | $10.57M 900,837 shares | 0.00% | -124.56K(-12.10%)Reduced | SEC filing ↗ May 27, 2026 | ▾ |
| 19 | TWO SIGMA ADVISERS, LP CIK 1478735 · View history | $9.50M 810,200 shares | 0.02% | +230.90K(+39.90%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 20 | BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history | $8.84M 753,829 shares | 0.00% | -185.16K(-19.70%)Reduced | SEC filing ↗ Feb 3, 2026 | ▾ |
Showing 20 / 206 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 206 reporting institutions.
This page includes 20 of 206 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 206 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"98401F105","quarter":"2025Q3","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.