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/XMTR/capital-change-brief"
Use Arkolith's capital_change_brief for XMTR. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | PRIMECAP MANAGEMENT CO/CA/ | $265.3M | 6.5M | ▲+14% Added · +813K sh | Q1 2026 | |
| 2 | BlackRock, Inc. | $142.9M | 3.5M | ▲+1.1% Added · +36K sh | Q1 2026 | |
| 3 | FMR LLC | $128.1M | 3.1M | ▲+21% Added · +543K sh | Q1 2026 | |
| 4 | EVENTIDE ASSET MANAGEMENT, LLC | $120.8M | 3.0M | ▲+0.8% Added · +24K sh | Q1 2026 | |
| 5 | AMERIPRISE FINANCIAL INC | $83.3M | 2.0M | ▼−11% Reduced · −254K sh | Q1 2026 | |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | $81.0M | 2.0M | ▲New +2.0M sh | Q1 2026 | |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | $80.9M | 2.0M | ▲New +2.0M sh | Q1 2026 | |
| 8 | FIRST TRUST ADVISORS LP | $64.3M | 1.6M | ▼−0.1% Reduced · −874 sh | Q1 2026 | |
| 9 | FULLER & THALER ASSET MANAGEMENT, INC. | $54.7M | 1.3M | ▲+4.3% Added · +55K sh | Q1 2026 | |
| 10 | Hood River Capital Management LLC | $45.9M | 1.1M | ▲+44% Added · +342K sh | Q1 2026 | |
| 11 | BAILLIE GIFFORD & CO | $45.9M | 1.1M | ▼−14% Reduced · −183K sh | Q1 2026 | |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | $44.7M | 1.1M | ▲+3.2% Added · +34K sh | Q1 2026 | |
| 13 | STATE STREET CORP | $40.1M | 981K | ▲+0.3% Added · +2K sh | Q1 2026 | |
| 14 | GILDER GAGNON HOWE & CO LLC | $37.6M | 921K | ▼−9.9% Reduced · −101K sh | Q1 2026 | |
| 15 | Stephens Investment Management Group LLC | $31.8M | 779K | ▼−7.6% Reduced · −64K sh | Q1 2026 | |
| 16 | SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | $29.0M | 710K | ▲+1.3% Added · +9K sh | Q1 2026 | |
| 17 | Clearbridge Investments, LLC | $28.9M | 708K | ▼~0% Reduced · −252 sh | Q1 2026 | |
| 18 | Allspring Global Investments Holdings, LLC | $29.0M | 694K | ▲+244% Added · +492K sh | Q1 2026 | |
| 19 | FRED ALGER MANAGEMENT, LLC | $24.6M | 603K | ▲+3.9% Added · +23K sh | Q1 2026 | |
| 20 | JPMORGAN CHASE & CO | $21.5M | 576K | ▲15× Added · +538K sh | Q1 2026 | |
| 21 | SYLEBRA CAPITAL LLC | $21.9M | 536K | ▲+31% Added · +128K sh | Q1 2026 | |
| 22 | JANE STREET GROUP, LLC | $20.7M | 507K | ▲+138% Added · +294K sh | Q1 2026 | |
| 23 | UBS Group AG | $17.2M | 422K | ▲+64% Added · +164K sh | Q1 2026 | |
| 24 | NORTHERN TRUST CORP | $16.4M | 402K | ▲+2.9% Added · +11K sh | Q1 2026 | |
| 25 | G2 Investment Partners Management LLC | $14.9M | 366K | ▲+65% Added · +144K 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 |
|---|---|---|---|---|---|
| Jul 3, 2026 | Sahni Sanjeev Singh | Chief Executive Officer, Director | Grant (A) | 41K | $0 |
| Jul 2, 2026 | Raghavan Vaidyanathan | Chief Technology Officer | Sell (S) | 428 | $39K |
| Jul 2, 2026 | Raghavan Vaidyanathan | Chief Technology Officer | Sell (S) | 425 | $39K |
| Jul 2, 2026 | Raghavan Vaidyanathan | Chief Technology Officer | Sell (S) | 529 | $49K |
| Jul 2, 2026 | Raghavan Vaidyanathan | Chief Technology Officer | Sell (S) | 99 | $9K |
| Jul 2, 2026 | Raghavan Vaidyanathan | Chief Technology Officer | Sell (S) | 326 | $31K |
| Jul 2, 2026 | Raghavan Vaidyanathan | Chief Technology Officer | Sell (S) | 59 | $6K |
| Jul 2, 2026 | Dutt Subir | Chief Sales Officer | Sell (S) | 274 | $25K |
| Jul 2, 2026 | Dutt Subir | Chief Sales Officer | Sell (S) | 310 | $29K |
| Jul 2, 2026 | Dutt Subir | Chief Sales Officer | Sell (S) | 137 | $13K |
| Jul 2, 2026 | Dutt Subir | Chief Sales Officer | Sell (S) | 100 | $9K |
| Jul 2, 2026 | Dutt Subir | Chief Sales Officer | Sell (S) | 199 | $19K |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 76 funds | $43.6B |
| MICROSOFT CORPMSFT | 76 funds | $28.6B |
| AMAZON.COM INCAMZN | 76 funds | $21.6B |
| META PLATFORMS INC-CLASS AMETA | 75 funds | $13.6B |
| TESLA INCTSLA | 74 funds | $8.9B |
| ALPHABET INC-CL AGOOGL | 73 funds | $20.0B |
| APPLE INCAAPL | 72 funds | $32.4B |
| BROADCOM INCAVGO | 72 funds | $17.0B |
| ELI LILLY & COLLY | 72 funds | $8.6B |
| MICRON TECHNOLOGY INCMU | 72 funds | $4.7B |
| ADVANCED MICRO DEVICESAMD | 71 funds | $4.3B |
| LAM RESEARCH CORPLRCX | 71 funds | $3.6B |
Ranked by how many of XMTR'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 XMTR. 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.