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/GNTX/capital-change-brief"
Use Arkolith's capital_change_brief for GNTX. 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. | $465.4M | 21.3M | ▲+3.8% Added · +784K sh | Q1 2026 | |
| 2 | AMERICAN CENTURY COMPANIES INC | $231.7M | 10.6M | ▲+7.8% Added · +769K sh | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $224.2M | 10.3M | ▲New +10.3M sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $212.0M | 9.7M | ▲New +9.7M sh | Q1 2026 | |
| 5 | ARIEL INVESTMENTS, LLC | $182.3M | 8.3M | ▲+5.7% Added · +452K sh | Q1 2026 | |
| 6 | DIMENSIONAL FUND ADVISORS LP | $163.1M | 7.5M | ▲+13% Added · +834K sh | Q1 2026 | |
| 7 | BANK OF MONTREAL /CAN/ | $161.6M | 7.4M | ▼−4.2% Reduced · −328K sh | Q1 2026 | |
| 8 | FULLER & THALER ASSET MANAGEMENT, INC. | $155.3M | 7.1M | ▲+8.5% Added · +558K sh | Q1 2026 | |
| 9 | STATE STREET CORP | $154.7M | 7.1M | ▲+0.1% Added · +7K sh | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $131.3M | 6.0M | ▲+5.7% Added · +327K sh | Q1 2026 | |
| 11 | Boston Partners | $124.3M | 5.7M | ▼−2.0% Reduced · −116K sh | Q1 2026 | |
| 12 | DISCIPLINED GROWTH INVESTORS INC /MN | $98.8M | 4.5M | ▼−5.9% Reduced · −284K sh | Q1 2026 | |
| 13 | CAISSE DE DEPOT ET PLACEMENT DU QUEBEC | $83.9M | 3.8M | ▲+22% Added · +695K sh | Q1 2026 | |
| 14 | GOLDMAN SACHS GROUP INC | $82.5M | 3.8M | ▲+130% Added · +2.1M sh | Q1 2026 | |
| 15 | MORGAN STANLEY | $66.6M | 3.0M | ▼−7.6% Reduced · −250K sh | Q1 2026 | |
| 16 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $65.4M | 3.0M | ▲+22% Added · +535K sh | Q1 2026 | |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $53.3M | 2.4M | ▲+2.6% Added · +63K sh | Q1 2026 | |
| 18 | NORGES BANK | $52.8M | 2.3M | ▼−3.8% Reduced · −89K sh | Q4 2025 | |
| 19 | NORTHERN TRUST CORP | $47.4M | 2.2M | ▲+0.3% Added · +6K sh | Q1 2026 | |
| 20 | Bank of New York Mellon Corp | $46.1M | 2.1M | ▼−4.0% Reduced · −89K sh | Q1 2026 | |
| 21 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | $45.3M | 2.1M | ▼−23% Reduced · −606K sh | Q1 2026 | |
| 22 | SEIZERT CAPITAL PARTNERS, LLC | $43.5M | 2.0M | ▲+642% Added · +1.7M sh | Q1 2026 | |
| 23 | MILLENNIUM MANAGEMENT LLC | $41.2M | 1.9M | ▲+11% Added · +190K sh | Q1 2026 | |
| 24 | JPMORGAN CHASE & CO | $33.8M | 1.6M | ▼−67% Reduced · −3.2M sh | Q1 2026 | |
| 25 | RENAISSANCE TECHNOLOGIES LLC | $33.0M | 1.5M | ▼−13% Reduced · −218K 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 21, 2026 | DEUR GARTH | Director | Grant (A) | 6K | $0 |
| May 21, 2026 | BROWN LESLIE L | Director | Grant (A) | 6K | $0 |
| May 21, 2026 | KENNEDY JOHN C | Director | Grant (A) | 6K | $0 |
| May 21, 2026 | WALKER BRIAN C | Director | Grant (A) | 6K | $0 |
| May 21, 2026 | Schaum Richard O | Director | Grant (A) | 6K | $0 |
| May 21, 2026 | Starkoff Kathleen | Director | Grant (A) | 6K | $0 |
| May 21, 2026 | Zang Ling | Director | Grant (A) | 6K | $0 |
| May 21, 2026 | Pink Billy | Director | Grant (A) | 6K | $0 |
| May 15, 2026 | ANDERSON JOSEPH B JR | Director | Sell (S) | 6K | $136K |
| May 15, 2026 | WALKER BRIAN C | Director | Sell (S) | 6K | $136K |
| May 5, 2026 | BROWN LESLIE L | Director | Option exercise (M) | 7K | $110K |
| May 5, 2026 | BROWN LESLIE L | Director | Option exercise (M) | 7K | $131K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 171 funds | $70.5B |
| APPLE INCAAPL | 169 funds | $84.2B |
| AMAZON.COM INCAMZN | 167 funds | $54.1B |
| ELI LILLY & COLLY | 166 funds | $19.2B |
| ALPHABET INC-CL AGOOGL | 165 funds | $47.0B |
| META PLATFORMS INC-CLASS AMETA | 165 funds | $31.7B |
| JPMORGAN CHASE & COJPM | 165 funds | $22.9B |
| COSTCO WHOLESALE CORPCOST | 165 funds | $12.4B |
| NVIDIA CORPNVDA | 164 funds | $96.3B |
| MASTERCARD INC - AMA | 164 funds | $12.2B |
| LAM RESEARCH CORPLRCX | 163 funds | $9.4B |
| BANK OF AMERICA CORPBAC | 163 funds | $7.5B |
Ranked by how many of GNTX'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 GNTX. 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.