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/GTX/capital-change-brief"
Use Arkolith's capital_change_brief for GTX. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | OAKTREE CAPITAL MANAGEMENT LP | $265.2M | 14.6M | ▼−15% Reduced · −2.5M sh | Q1 2026 | |
| 2 | BlackRock, Inc. | $236.8M | 13.0M | ▲+5.3% Added · +656K sh | Q1 2026 | |
| 3 | FULLER & THALER ASSET MANAGEMENT, INC. | $198.0M | 10.9M | ▲+5.3% Added · +549K sh | Q1 2026 | |
| 4 | FMR LLC | $150.0M | 8.3M | ▲+29% Added · +1.9M sh | Q1 2026 | |
| 5 | Gates Capital Management, Inc. | $107.9M | 5.9M | ▲+8.3% Added · +458K sh | Q1 2026 | |
| 6 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | $104.7M | 5.8M | ▼−4.9% Reduced · −297K sh | Q1 2026 | |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $80.6M | 4.4M | ▲+14% Added · +554K sh | Q1 2026 | |
| 8 | STATE STREET CORP | $75.7M | 4.2M | ▲+11% Added · +421K sh | Q1 2026 | |
| 9 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $69.4M | 3.8M | ▼−26% Reduced · −1.3M sh | Q1 2026 | |
| 10 | DIMENSIONAL FUND ADVISORS LP | $63.7M | 3.5M | ▲+7.3% Added · +238K sh | Q1 2026 | |
| 11 | MARSHALL WACE, LLP | $62.9M | 3.5M | ▼−23% Reduced · −1.0M sh | Q1 2026 | |
| 12 | NEW SOUTH CAPITAL MANAGEMENT INC | $60.0M | 3.3M | ▼−11% Reduced · −408K sh | Q1 2026 | |
| 13 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | $105.7M | 2.9M | ▲New +2.9M sh | Q2 2026 | |
| 14 | FRONTIER CAPITAL MANAGEMENT CO LLC | $48.6M | 2.7M | ▲+17% Added · +393K sh | Q1 2026 | |
| 15 | APIS CAPITAL ADVISORS, LLC | $48.4M | 2.7M | ▲+20% Added · +435K sh | Q1 2026 | |
| 16 | Nuveen, LLC | $47.9M | 2.6M | ▲+1.4% Added · +36K sh | Q1 2026 | |
| 17 | MORGAN STANLEY | $46.4M | 2.6M | ▲+6.0% Added · +144K sh | Q1 2026 | |
| 18 | VANGUARD PORTFOLIO MANAGEMENT LLC | $44.4M | 2.4M | ▲New +2.4M sh | Q1 2026 | |
| 19 | D. E. Shaw & Co., Inc. | $44.3M | 2.4M | ▲+81% Added · +1.1M sh | Q1 2026 | |
| 20 | CYRUS CAPITAL PARTNERS, L.P. | $39.2M | 2.2M | ▼−68% Reduced · −4.7M sh | Q1 2026 | |
| 21 | SCHRODER INVESTMENT MANAGEMENT GROUP | $37.0M | 2.1M | ▲+781% Added · +1.9M sh | Q1 2026 | |
| 22 | GAMCO INVESTORS, INC. ET AL | $35.5M | 2.0M | ▼−4.5% Reduced · −93K sh | Q1 2026 | |
| 23 | Qube Research & Technologies Ltd | $31.5M | 1.7M | ▲+17% Added · +246K sh | Q1 2026 | |
| 24 | NORGES BANK | $29.2M | 1.7M | ▲New +1.7M sh | Q4 2025 | |
| 25 | VICTORY CAPITAL MANAGEMENT INC | $27.7M | 1.5M | ▼−12% Reduced · −200K 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 1, 2026 | NINIVAGGI DANIEL A | Director | Grant (A) | 1K | — |
| Jul 1, 2026 | Drees Joachim | Director | Grant (A) | 1K | — |
| Jul 1, 2026 | Camuti Paul A | Director | Grant (A) | 512 | — |
| Jun 24, 2026 | Rodrigues Mark Albert | SVP, GM GBEs Turbo Tech | Sell (S) | 6K | $204K |
| Jun 12, 2026 | Rodrigues Mark Albert | SVP, GM GBEs Turbo Tech | Sell (S) | 11K | $356K |
| Jun 5, 2026 | Deason Sean | SVP & Chief Financial Officer | Sell (S) | 110K | $3.5M |
| May 29, 2026 | Mabru Thierry | SVP, Integrated Supply Chain | Sell (S) | 70K | $2.3M |
| May 28, 2026 | Vanneste Jeffrey H. | Director | Grant (A) | 5K | — |
| May 28, 2026 | Drees Joachim | Director | Grant (A) | 5K | — |
| May 28, 2026 | Camuti Paul A | Director | Grant (A) | 5K | — |
| May 28, 2026 | NINIVAGGI DANIEL A | Director | Grant (A) | 5K | — |
| May 28, 2026 | Norman Daun | Director | Grant (A) | 5K | — |
| Company | Co-held by | Combined value |
|---|---|---|
| JPMORGAN CHASE & COJPM | 108 funds | $13.7B |
| MICROSOFT CORPMSFT | 107 funds | $46.6B |
| ALPHABET INC-CL AGOOGL | 107 funds | $31.1B |
| AMAZON.COM INCAMZN | 106 funds | $33.1B |
| APPLE INCAAPL | 105 funds | $50.0B |
| META PLATFORMS INC-CLASS AMETA | 105 funds | $22.1B |
| NVIDIA CORPNVDA | 104 funds | $63.4B |
| BANK OF AMERICA CORPBAC | 104 funds | $4.5B |
| ELI LILLY & COLLY | 103 funds | $10.9B |
| NETFLIX INCNFLX | 103 funds | $7.3B |
| MASTERCARD INC - AMA | 102 funds | $8.1B |
| COSTCO WHOLESALE CORPCOST | 102 funds | $7.1B |
Ranked by how many of GTX'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 GTX. 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.