190 tracked 13F filers disclose a position in XNCR as of the latest SEC 13F filings, a combined $1.1B 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 | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $157.2M | 13.0M | ▲+9.3% Added · +1.1M sh | Q1 2026 | |
| 2 | PRIMECAP MANAGEMENT CO/CA/ | $124.7M | 10.3M | ▲+1.2% Added · +120K sh | Q1 2026 | |
| 3 | BVF INC/IL | $86.0M | 7.1M | —Held | Q1 2026 | |
| 4 | RTW INVESTMENTS, LP | $109.1M | 6.8M | —Held | Q2 2026 | |
| 5 | STATE STREET CORP | $79.8M | 5.0M | ▲+14% Added · +602K sh | Q2 2026 | |
| 6 | RA CAPITAL MANAGEMENT, L.P. | $59.1M | 4.9M | ▲New +4.9M sh | Q1 2026 | |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | $42.2M | 3.5M | →First observed position No prior filed position | Q1 2026 | |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | $37.4M | 3.1M | →First observed position No prior filed position | Q1 2026 | |
| 9 | TCG Crossover Management, LLC | $29.6M | 2.5M | —Held | Q1 2026 | |
| 10 | EcoR1 Capital, LLC | $26.3M | 2.2M | ▼−33% Reduced · −1.1M sh | Q1 2026 | |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | $30.9M | 1.9M | ▲+5.8% Added · +105K sh | Q2 2026 | |
| 12 | PRICE T ROWE ASSOCIATES INC /MD/ | $18.8M | 1.6M | ▼−2.6% Reduced · −41K sh | Q1 2026 | |
| 13 | MORGAN STANLEY | $18.8M | 1.6M | ▲+3.3% Added · +50K sh | Q1 2026 | |
| 14 | DIMENSIONAL FUND ADVISORS LP | $15.6M | 1.3M | ▲+3.6% Added · +46K sh | Q1 2026 | |
| 15 | BAKER BROS. ADVISORS LP | $13.3M | 1.1M | —Held | Q1 2026 | |
| 16 | UBS Group AG | $13.1M | 1.1M | ▲+70% Added · +444K sh | Q1 2026 | |
| 17 | Legal & General Group Plc | $12.9M | 1.1M | ▼−18% Reduced · −241K sh | Q1 2026 | |
| 18 | TWO SIGMA INVESTMENTS, LP | $9.7M | 805K | ▲+200% Added · +537K sh | Q1 2026 | |
| 19 | GOLDMAN SACHS GROUP INC | $9.2M | 764K | ▲+1.4% Added · +11K sh | Q1 2026 | |
| 20 | JOHNSON & JOHNSON | $12.0M | 748K | —Held | Q2 2026 | |
| 21 | NORTHERN TRUST CORP | $9.0M | 745K | ▲+10% Added · +70K sh | Q1 2026 | |
| 22 | Jefferies Financial Group Inc. | $11.6M | 720K | —Held | Q2 2026 | |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $8.4M | 697K | ▼−0.5% Reduced · −4K sh | Q1 2026 | |
| 24 | PANAGORA ASSET MANAGEMENT INC | $11.0M | 680K | ▲+9.6% Added · +59K sh | Q2 2026 | |
| 25 | MILLENNIUM MANAGEMENT LLC | $7.4M | 610K | ▲+2.6% Added · +15K 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.
Last quarter, 3 funds opened a new position in XNCR and 22 added to an existing one, while 13 reduced and 0 exited entirely — 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 | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 89 funds | $185.6B |
| MICRON TECHNOLOGY INCMU | 89 funds | $33.3B |
| NVIDIA CORPNVDA | 88 funds | $277.7B |
| AMAZON.COM INCAMZN | 88 funds | $132.9B |
| BROADCOM INCAVGO | 88 funds | $109.6B |
| META PLATFORMS INC-CLASS AMETA | 88 funds | $78.0B |
| ALPHABET INC-CL AGOOGL | 87 funds | $109.7B |
| APPLE INCAAPL | 85 funds | $206.4B |
| ELI LILLY & COLLY | 85 funds | $63.9B |
| TJX COMPANIES INCTJX | 85 funds | $18.0B |
| WELLS FARGO & COWFC | 85 funds | $12.1B |
| CME GROUP INCCME | 85 funds | $9.3B |
Ranked by how many of XNCR's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 18, 2026 | Feigal Ellen | Director | Sell (S) | 7K | $89K |
| Jun 15, 2026 | GUSTAFSON KURT A | Director | Sell (S) | 5K | $67K |
| Jun 15, 2026 | GORMAN KEVIN CHARLES | Director | Sell (S) | 8K | $93K |
| Jun 15, 2026 | Montgomery Alan Bruce | Director | Sell (S) | 5K | $62K |
| Jun 15, 2026 | RANIERI RICHARD J | Director | Sell (S) | 5K | $67K |
| Apr 10, 2026 | Cornelissen Bart Jan | SR. VICE PRESIDENT & CFO | Sell (S) | 3K | $43K |
| Mar 6, 2026 | Dahiyat Bassil I | PRESIDENT & CEO, Director | Sell (S) | 7K | $73K |
| Mar 6, 2026 | Desjarlais John R | SR. VICE PRESIDENT & CSO | Sell (S) | 3K | $28K |
| Mar 6, 2026 | Eckert Celia | SVP, GENERAL COUNSEL | Sell (S) | 2K | $19K |
| Mar 5, 2026 | Dahiyat Bassil I | PRESIDENT & CEO, Director | Sell (S) | 15K | $167K |
| Mar 5, 2026 | Desjarlais John R | SR. VICE PRESIDENT & CSO | Sell (S) | 4K | $46K |
| Mar 5, 2026 | Eckert Celia | SVP, GENERAL COUNSEL | Sell (S) | 3K | $36K |
Connected entities for XNCR
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/XNCR/capital-change-brief"
Use Arkolith's capital_change_brief for XNCR. 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 XNCR. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.