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/SLAB/capital-change-brief"
Use Arkolith's capital_change_brief for SLAB. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $1.0B | 5.0M | ▲+4.7% Added · +222K sh | Q1 2026 | |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $445.2M | 2.1M | ▲New +2.1M sh | Q1 2026 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $306.7M | 1.5M | ▲New +1.5M sh | Q1 2026 | |
| 4 | STATE STREET CORP | $305.4M | 1.5M | ▼−4.9% Reduced · −76K sh | Q1 2026 | |
| 5 | BALYASNY ASSET MANAGEMENT L.P. | $256.8M | 1.2M | ▲New +1.2M sh | Q1 2026 | |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | $177.2M | 851K | ▲+3.2% Added · +27K sh | Q1 2026 | |
| 7 | AMERICAN CENTURY COMPANIES INC | $132.5M | 636K | ▼−2.4% Reduced · −16K sh | Q1 2026 | |
| 8 | MORGAN STANLEY | $123.0M | 591K | ▲+45% Added · +184K sh | Q1 2026 | |
| 9 | ADAGE CAPITAL PARTNERS GP, L.L.C. | $117.9M | 566K | ▼−8.1% Reduced · −50K sh | Q1 2026 | |
| 10 | GOLDMAN SACHS GROUP INC | $108.2M | 520K | ▼−12% Reduced · −72K sh | Q1 2026 | |
| 11 | DIMENSIONAL FUND ADVISORS LP | $106.1M | 510K | ▼−2.3% Reduced · −12K sh | Q1 2026 | |
| 12 | Pentwater Capital Management LP | $104.1M | 500K | ▲New +500K sh | Q1 2026 | |
| 13 | MILLENNIUM MANAGEMENT LLC | $95.2M | 457K | ▲54× Added · +449K sh | Q1 2026 | |
| 14 | NORGES BANK | $56.0M | 429K | ▲+38% Added · +117K sh | Q4 2025 | |
| 15 | Pathstone Holdings, LLC | $88.5M | 425K | ▲~0% Added · +30 sh | Q1 2026 | |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $82.4M | 396K | ▼−3.4% Reduced · −14K sh | Q1 2026 | |
| 17 | NORTHERN TRUST CORP | $80.6M | 387K | ▲+2.3% Added · +9K sh | Q1 2026 | |
| 18 | FEDERATED HERMES, INC. | $79.7M | 383K | ▼−2.3% Reduced · −9K sh | Q1 2026 | |
| 19 | UBS Group AG | $79.3M | 381K | ▲+48% Added · +123K sh | Q1 2026 | |
| 20 | CITADEL ADVISORS LLC | $71.1M | 342K | ▲26× Added · +329K sh | Q1 2026 | |
| 21 | AQR Arbitrage LLC | $64.3M | 309K | ▲New +309K sh | Q1 2026 | |
| 22 | AQR CAPITAL MANAGEMENT LLC | $57.1M | 274K | ▼−58% Reduced · −379K sh | Q1 2026 | |
| 23 | Magnetar Financial LLC | $51.2M | 246K | ▲New +246K sh | Q1 2026 | |
| 24 | ALLIANCEBERNSTEIN L.P. | $32.1M | 246K | ▲+98% Added · +122K sh | Q1 2026 | |
| 25 | Clearbridge Investments, LLC | $51.0M | 245K | ▼−9.2% Reduced · −25K 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 |
|---|---|---|---|---|---|
| May 18, 2026 | Johnson Robert Matthew | President & CEO, Director | Sell (S) | 8K | $1.7M |
| May 15, 2026 | CONRAD ROBERT J | Sr VP and General Manager | Tax withholding (F) | 4K | $791K |
| May 15, 2026 | Johnson Robert Matthew | President & CEO, Director | Tax withholding (F) | 10K | $2.2M |
| May 15, 2026 | Butler Dean Warren | Sr VP and CFO | Tax withholding (F) | 6K | $1.4M |
| May 15, 2026 | MAULDIN MARK D | Chief Accounting Officer | Tax withholding (F) | 858 | $186K |
| May 15, 2026 | Tolany Brandon | Sr VP WW Sales & Marketing | Tax withholding (F) | 4K | $901K |
| Apr 30, 2026 | Butler Dean Warren | Sr VP and CFO | Grant (A) | 152 | $13K |
| Apr 30, 2026 | MAULDIN MARK D | Chief Accounting Officer | Grant (A) | 18 | $2K |
| Apr 30, 2026 | Tolany Brandon | Sr VP WW Sales & Marketing | Grant (A) | 45 | $4K |
| Apr 23, 2026 | LOWE GREGG A | Director | Grant (A) | 962 | $0 |
| Apr 23, 2026 | BOCK WILLIAM G | Director | Grant (A) | 962 | $0 |
| Apr 23, 2026 | Luther Sherri R | Director | Grant (A) | 962 | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 122 funds | $54.9B |
| META PLATFORMS INC-CLASS AMETA | 122 funds | $25.4B |
| AMAZON.COM INCAMZN | 121 funds | $40.4B |
| NVIDIA CORPNVDA | 119 funds | $76.3B |
| ALPHABET INC-CL AGOOGL | 119 funds | $35.9B |
| ELI LILLY & COLLY | 119 funds | $14.6B |
| TESLA INCTSLA | 118 funds | $14.7B |
| APPLE INCAAPL | 117 funds | $64.4B |
| BROADCOM INCAVGO | 117 funds | $28.3B |
| COSTCO WHOLESALE CORPCOST | 117 funds | $9.0B |
| LAM RESEARCH CORPLRCX | 117 funds | $7.7B |
| TJX COMPANIES INCTJX | 117 funds | $4.9B |
Ranked by how many of SLAB'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 SLAB. 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.