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/SGI/capital-change-brief"
Use Arkolith's capital_change_brief for SGI. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | $2.1B | 27.9M | ▼−4.7% Reduced · −1.4M sh | Q1 2026 | |
| 2 | BlackRock, Inc. | $1.5B | 20.1M | ▲+2.4% Added · +481K sh | Q1 2026 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $671.1M | 9.1M | ▲New +9.1M sh | Q1 2026 | |
| 4 | Linonia Partnership LP | $649.2M | 8.8M | ▲~0% Added · +4K sh | Q1 2026 | |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | $623.8M | 8.4M | ▲New +8.4M sh | Q1 2026 | |
| 6 | WINDACRE PARTNERSHIP LLC | $607.8M | 8.2M | ▼−12% Reduced · −1.1M sh | Q1 2026 | |
| 7 | STATE STREET CORP | $509.3M | 6.9M | ▲+2.1% Added · +141K sh | Q1 2026 | |
| 8 | BROWNING WEST LP | $435.9M | 5.9M | ▲+2.6% Added · +149K sh | Q1 2026 | |
| 9 | ABRAMS CAPITAL MANAGEMENT, L.P. | $428.6M | 5.8M | ▼−0.1% Reduced · −5K sh | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $359.0M | 4.9M | ▲+11% Added · +481K sh | Q1 2026 | |
| 11 | D1 Capital Partners L.P. | $346.6M | 4.7M | ▲New +4.7M sh | Q1 2026 | |
| 12 | Artisan Partners Limited Partnership | $342.2M | 4.6M | ▲+51% Added · +1.6M sh | Q1 2026 | |
| 13 | JPMORGAN CHASE & CO | $301.0M | 4.3M | ▲+27% Added · +910K sh | Q1 2026 | |
| 14 | Boston Partners | $280.9M | 3.8M | ▼−4.4% Reduced · −175K sh | Q1 2026 | |
| 15 | LONDON CO OF VIRGINIA | $234.9M | 3.2M | ▼−8.5% Reduced · −295K sh | Q1 2026 | |
| 16 | Allspring Global Investments Holdings, LLC | $224.2M | 3.0M | ▲+62% Added · +1.2M sh | Q1 2026 | |
| 17 | NORGES BANK | $270.8M | 3.0M | ▼−2.6% Reduced · −82K sh | Q4 2025 | |
| 18 | TIMUCUAN ASSET MANAGEMENT INC/FL | $217.4M | 2.9M | ▼−2.0% Reduced · −60K sh | Q1 2026 | |
| 19 | Darsana Capital Partners LP | $196.3M | 2.7M | ▼−11% Reduced · −345K sh | Q1 2026 | |
| 20 | BECK MACK & OLIVER LLC | $178.1M | 2.4M | ▲+3.7% Added · +86K sh | Q1 2026 | |
| 21 | Third Point LLC | $167.9M | 2.3M | ▼−33% Reduced · −1.1M sh | Q1 2026 | |
| 22 | BANK OF AMERICA CORP /DE/ | $165.8M | 2.2M | ▼−11% Reduced · −283K sh | Q1 2026 | |
| 23 | Point72 Asset Management, L.P. | $163.9M | 2.2M | ▲+508% Added · +1.9M sh | Q1 2026 | |
| 24 | MORGAN STANLEY | $154.1M | 2.1M | ▲+77% Added · +905K sh | Q1 2026 | |
| 25 | DIMENSIONAL FUND ADVISORS LP | $141.1M | 1.9M | ▼−5.8% Reduced · −119K 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 22, 2026 | Rusing Steven H | President & CEO Mattress Firm | Option exercise (M) | 10K | $163K |
| May 22, 2026 | Rusing Steven H | President & CEO Mattress Firm | Sell (S) | 5K | $358K |
| May 22, 2026 | Rusing Steven H | President & CEO Mattress Firm | Sell (S) | 1K | $88K |
| May 22, 2026 | Rusing Steven H | President & CEO Mattress Firm | Option exercise (M) | 10K | $0 |
| May 14, 2026 | Dyer Simon | Director | Option exercise (M) | 2K | $0 |
| May 14, 2026 | Dyer Simon | Director | Tax withholding (F) | 702 | $45K |
| May 14, 2026 | Dyer Simon | Director | Option exercise (M) | 2K | $0 |
| May 13, 2026 | NEU RICHARD W | Director | Grant (A) | 3K | $0 |
| May 13, 2026 | Madden Meredith Siegfried | Director | Grant (A) | 3K | $0 |
| May 13, 2026 | Gates Cathy R. | Director | Grant (A) | 3K | $0 |
| May 13, 2026 | Dilsaver Evelyn S | Director | Grant (A) | 3K | $0 |
| May 13, 2026 | Cook Christopher Thomas | Director | Grant (A) | 3K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| AMAZON.COM INCAMZN | 193 funds | $50.4B |
| NVIDIA CORPNVDA | 191 funds | $90.6B |
| MICROSOFT CORPMSFT | 188 funds | $62.5B |
| META PLATFORMS INC-CLASS AMETA | 188 funds | $27.5B |
| ALPHABET INC-CL AGOOGL | 187 funds | $43.1B |
| BROADCOM INCAVGO | 184 funds | $33.2B |
| VISA INC-CLASS A SHARESV | 182 funds | $13.9B |
| CAPITAL ONE FINANCIAL CORPCOF | 182 funds | $4.7B |
| ELI LILLY & COLLY | 181 funds | $17.1B |
| COSTCO WHOLESALE CORPCOST | 181 funds | $12.0B |
| MASTERCARD INC - AMA | 179 funds | $11.2B |
| HOME DEPOT INCHD | 179 funds | $9.1B |
Ranked by how many of SGI'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 SGI. 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.