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/GPGI/capital-change-brief"
Use Arkolith's capital_change_brief for GPGI. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Platinum Equity Advisors, LLC/DE | $903.4M | 52.8M | ▲New +52.8M sh | Q1 2026 | |
| 2 | FMR LLC | $676.3M | 39.6M | ▲292× Added · +39.4M sh | Q1 2026 | |
| 3 | Alyeska Investment Group, L.P. | $365.9M | 21.4M | ▲43× Added · +20.9M sh | Q1 2026 | |
| 4 | LOCUST WOOD CAPITAL ADVISERS, LLC | $235.7M | 13.8M | ▲+55% Added · +4.9M sh | Q1 2026 | |
| 5 | BlackRock, Inc. | $233.9M | 13.7M | ▲+186% Added · +8.9M sh | Q1 2026 | |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | $141.4M | 8.3M | ▲New +8.3M sh | Q1 2026 | |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | $132.0M | 7.7M | ▲New +7.7M sh | Q1 2026 | |
| 8 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | $95.8M | 5.6M | ▲29× Added · +5.4M sh | Q1 2026 | |
| 9 | Alberta Investment Management Corp | $92.4M | 5.4M | ▲New +5.4M sh | Q1 2026 | |
| 10 | Starboard Value LP | $86.0M | 5.0M | ▲New +5.0M sh | Q1 2026 | |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | $71.5M | 4.2M | ▲+182% Added · +2.7M sh | Q1 2026 | |
| 12 | STATE STREET CORP | $67.3M | 3.9M | ▲+206% Added · +2.6M sh | Q1 2026 | |
| 13 | UBS Group AG | $65.4M | 3.8M | ▲+188% Added · +2.5M sh | Q1 2026 | |
| 14 | Nine Ten Capital Management LLC | $49.7M | 2.9M | ▲+20% Added · +486K sh | Q1 2026 | |
| 15 | T. Rowe Price Investment Management, Inc. | Withheld | 2.9M | ▲54× Added · +2.8M sh | Q1 2026 | |
| 16 | JANUS HENDERSON GROUP PLC | $36.2M | 2.1M | ▲110× Added · +2.1M sh | Q1 2026 | |
| 17 | Clearbridge Investments, LLC | $32.3M | 1.9M | ▲+158% Added · +1.2M sh | Q1 2026 | |
| 18 | MORGAN STANLEY | $32.2M | 1.9M | ▲+356% Added · +1.5M sh | Q1 2026 | |
| 19 | NORTHERN TRUST CORP | $31.0M | 1.8M | ▲+141% Added · +1.1M sh | Q1 2026 | |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $25.2M | 1.5M | ▲+164% Added · +915K sh | Q1 2026 | |
| 21 | BANK OF AMERICA CORP /DE/ | $22.0M | 1.3M | ▲+34% Added · +324K sh | Q1 2026 | |
| 22 | VANGUARD FIDUCIARY TRUST CO | $21.1M | 1.2M | ▲New +1.2M sh | Q1 2026 | |
| 23 | AlTi Global, Inc. | $13.8M | 808K | —Held | Q1 2026 | |
| 24 | Tidal Investments LLC | $11.6M | 676K | ▼−58% Reduced · −950K sh | Q1 2026 | |
| 25 | Ancora Advisors LLC | $10.7M | 623K | ▲+26% Added · +129K 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 |
|---|---|---|---|---|---|
| Jun 11, 2026 | Knott Thomas R. | See remarks, Director, 10% Owner | Buy (P) | 85K | $995K |
| Jun 11, 2026 | THOMPSON JANE J. | Director | Grant (A) | 31K | $0 |
| Jun 11, 2026 | Galant Paul | Director | Grant (A) | 31K | $0 |
| Jun 11, 2026 | Galant Paul | Director | Grant (A) | 10K | $0 |
| Jun 11, 2026 | DEANGELO JOSEPH J | Director | Grant (A) | 31K | $0 |
| Jun 11, 2026 | DEANGELO JOSEPH J | Director | Grant (A) | 15K | $0 |
| Jun 11, 2026 | Moriarty Kevin M | Director | Grant (A) | 72K | $0 |
| Jun 11, 2026 | Moriarty Kevin M | Director | Grant (A) | 10K | $0 |
| Jun 11, 2026 | Mikkilineni Krishna | Director | Grant (A) | 31K | $0 |
| Jun 11, 2026 | Mikkilineni Krishna | Director | Grant (A) | 12K | $0 |
| Jun 11, 2026 | Loree Rebecca Corbin | Director | Grant (A) | 51K | $0 |
| Jun 11, 2026 | Loree Rebecca Corbin | Director | Grant (A) | 10K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| ALPHABET INC-CL AGOOGL | 56 funds | $15.3B |
| NVIDIA CORPNVDA | 55 funds | $33.4B |
| MICROSOFT CORPMSFT | 55 funds | $26.0B |
| AMAZON.COM INCAMZN | 55 funds | $17.8B |
| META PLATFORMS INC-CLASS AMETA | 55 funds | $10.2B |
| ELI LILLY & COLLY | 55 funds | $6.5B |
| UBER TECHNOLOGIES INCUBER | 54 funds | $2.1B |
| BOSTON SCIENTIFIC CORPBSX | 54 funds | $1.4B |
| VERTIV HOLDINGS CO-AVRT | 54 funds | $1.2B |
| GENERAL MOTORS COGM | 54 funds | $1.1B |
| APPLE INCAAPL | 53 funds | $27.9B |
| VISA INC-CLASS A SHARESV | 53 funds | $5.7B |
Ranked by how many of GPGI'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 GPGI. 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.