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/GPRO/capital-change-brief"
Use Arkolith's capital_change_brief for GPRO. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $4.6M | 6.0M | ▼−18% Reduced · −1.3M sh | Q1 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $4.1M | 5.4M | ▲New +5.4M sh | Q1 2026 | |
| 3 | Allianz Asset Management GmbH | $2.6M | 3.4M | ▲+49% Added · +1.1M sh | Q1 2026 | |
| 4 | GREENLIGHT CAPITAL INC | $9.8M | 2.8M | ▲+6.3% Added · +167K sh | Q4 2023 | |
| 5 | JACOBS LEVY EQUITY MANAGEMENT, INC | $2.0M | 2.6M | ▲+36% Added · +685K sh | Q1 2026 | |
| 6 | BlackRock, Inc. | $1.9M | 2.5M | ▼−2.1% Reduced · −53K sh | Q1 2026 | |
| 7 | DME Capital Management, LP | $1.3M | 1.7M | —Held | Q1 2026 | |
| 8 | RENAISSANCE TECHNOLOGIES LLC | $1.3M | 1.6M | ▲+137% Added · +940K sh | Q1 2026 | |
| 9 | UBS Group AG | $1.1M | 1.4M | ▼−64% Reduced · −2.4M sh | Q1 2026 | |
| 10 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.0M | 1.3M | ▼−68% Reduced · −2.8M sh | Q1 2026 | |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | $972K | 1.3M | ▼−16% Reduced · −239K sh | Q1 2026 | |
| 12 | MILLENNIUM MANAGEMENT LLC | $774K | 1.0M | ▼−71% Reduced · −2.4M sh | Q1 2026 | |
| 13 | VANGUARD FIDUCIARY TRUST CO | $601K | 781K | ▲New +781K sh | Q1 2026 | |
| 14 | GROUP ONE TRADING LLC | $482K | 626K | ▼−14% Reduced · −103K sh | Q1 2026 | |
| 15 | STATE STREET CORP | $476K | 618K | —Held | Q1 2026 | |
| 16 | CITADEL ADVISORS LLC | $441K | 572K | ▼−39% Reduced · −371K sh | Q1 2026 | |
| 17 | VANGUARD PORTFOLIO MANAGEMENT LLC | $361K | 469K | ▲New +469K sh | Q1 2026 | |
| 18 | XTX Topco Ltd | $339K | 440K | ▲+220% Added · +302K sh | Q1 2026 | |
| 19 | TWO SIGMA INVESTMENTS, LP | $318K | 413K | ▲+11% Added · +41K sh | Q1 2026 | |
| 20 | SIMPLEX TRADING, LLC | $311K | 404K | ▼−42% Reduced · −293K sh | Q1 2026 | |
| 21 | ROYAL BANK OF CANADA | $304K | 395K | ▲+0.4% Added · +2K sh | Q1 2026 | |
| 22 | MORGAN STANLEY | $250K | 324K | ▼−47% Reduced · −291K sh | Q1 2026 | |
| 23 | NORTHERN TRUST CORP | $233K | 302K | ▼−0.1% Reduced · −174 sh | Q1 2026 | |
| 24 | DIMENSIONAL FUND ADVISORS LP | $221K | 288K | ▼−13% Reduced · −42K sh | Q1 2026 | |
| 25 | GOLDMAN SACHS GROUP INC | $190K | 247K | ▼−77% Reduced · −814K 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 9, 2026 | Woodman Nicholas | CEO, Chairman of the Board, Director, 10% Owner | Buy (P) | 19.3M | $0 |
| Jun 2, 2026 | Lyne Susan M | Director | Grant (A) | 110K | $0 |
| Jun 2, 2026 | DENNISON MICHAEL C. | Director | Grant (A) | 110K | $0 |
| Jun 2, 2026 | Kahng Shaz | Director | Grant (A) | 110K | $0 |
| Jun 2, 2026 | LOPEZ MIGUEL A | Director | Grant (A) | 110K | $0 |
| Jun 2, 2026 | Culp Hogue Emily S. | Director | Grant (A) | 110K | $0 |
| Jun 2, 2026 | Ahmad-Taylor Tyrone | Director | Grant (A) | 110K | $0 |
| May 20, 2026 | MCGEE BRIAN | President and COO | Sell (S) | 131K | $127K |
| May 18, 2026 | Stephen Jason Christopher | SVP, General Counsel | Sell (S) | 17K | $19K |
| May 15, 2026 | Tratt Brian Robert | Chief Financial Officer | Grant (A) | 26K | $0 |
| May 15, 2026 | Tratt Brian Robert | Chief Financial Officer | Grant (A) | 216K | $0 |
| May 15, 2026 | Tratt Brian Robert | Chief Financial Officer | Tax withholding (F) | 11K | $12K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 29 funds | $9.8B |
| AMAZON.COM INCAMZN | 29 funds | $8.7B |
| BROADCOM INCAVGO | 29 funds | $5.3B |
| META PLATFORMS INC-CLASS AMETA | 29 funds | $5.0B |
| JPMORGAN CHASE & COJPM | 29 funds | $4.1B |
| TESLA INCTSLA | 29 funds | $3.6B |
| ARISTA NETWORKS INCANET | 29 funds | $3.1B |
| COSTCO WHOLESALE CORPCOST | 29 funds | $2.4B |
| MASTERCARD INC - AMA | 29 funds | $2.3B |
| ELI LILLY & COLLY | 29 funds | $2.2B |
| PALANTIR TECHNOLOGIES INC-APLTR | 29 funds | $1.8B |
| CHEVRON CORPCVX | 29 funds | $1.7B |
Ranked by how many of GPRO'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 GPRO. 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.