130 tracked 13F filers disclose a position in ETON as of the latest SEC 13F filings, a combined $491.0M in reported value. 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.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Opaleye Management Inc. | $70.6M | 2.9M | —Held | Q1 2026 | |
| 2 | EcoR1 Capital, LLC | $53.6M | 2.2M | ▲+7.0% Added · +141K sh | Q1 2026 | |
| 3 | BlackRock, Inc. | $42.4M | 1.7M | ▼−1.2% Reduced · −22K sh | Q1 2026 | |
| 4 | Nantahala Capital Management, LLC | $42.6M | 1.2M | —Held | Q2 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $24.5M | 994K | →First observed position No prior filed position | Q1 2026 | |
| 6 | STATE STREET CORP | $25.4M | 702K | ▲+32% Added · +172K sh | Q2 2026 | |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $23.6M | 652K | ▲+13% Added · +75K sh | Q2 2026 | |
| 8 | National Philanthropic Trust | $12.1M | 492K | —Held | Q1 2026 | |
| 9 | MORGAN STANLEY | $11.8M | 478K | ▼−3.2% Reduced · −16K sh | Q1 2026 | |
| 10 | OBERWEIS ASSET MANAGEMENT INC/ | $10.8M | 439K | ▲+1.9% Added · +8K sh | Q1 2026 | |
| 11 | Westside Investment Management, Inc. | $15.6M | 431K | ▼−7.8% Reduced · −37K sh | Q2 2026 | |
| 12 | Pillsbury Lake Capital LLC | $14.0M | 387K | ▲+6.1% Added · +22K sh | Q2 2026 | |
| 13 | BNP PARIBAS FINANCIAL MARKETS | $7.5M | 302K | ▲+8.9% Added · +25K sh | Q1 2026 | |
| 14 | NORTHERN TRUST CORP | $5.9M | 238K | ▲+2.6% Added · +6K sh | Q1 2026 | |
| 15 | GOLDMAN SACHS GROUP INC | $5.4M | 217K | ▲+11% Added · +21K sh | Q1 2026 | |
| 16 | PRELUDE CAPITAL MANAGEMENT, LLC | $4.7M | 189K | ▲+317% Added · +143K sh | Q1 2026 | |
| 17 | Panoramic Capital, LLC | $4.6M | 185K | ▲New +185K sh | Q1 2026 | |
| 18 | Lumbard & Kellner, LLC | $6.4M | 176K | ▼~0% Reduced · −2 sh | Q2 2026 | |
| 19 | CANNELL CAPITAL LLC | $6.2M | 171K | ▼−50% Reduced · −171K sh | Q2 2026 | |
| 20 | Woodline Partners LP | $4.2M | 171K | ▲+79% Added · +75K sh | Q1 2026 | |
| 21 | JPMORGAN CHASE & CO | $3.8M | 170K | ▼−8.4% Reduced · −16K sh | Q1 2026 | |
| 22 | UBS Group AG | $4.2M | 169K | ▲+33% Added · +42K sh | Q1 2026 | |
| 23 | VANGUARD FIDUCIARY TRUST CO | $4.1M | 165K | →First observed position No prior filed position | Q1 2026 | |
| 24 | RENAISSANCE TECHNOLOGIES LLC | $4.0M | 163K | ▼−21% Reduced · −42K sh | Q1 2026 | |
| 25 | Informed Momentum Co LLC | $5.7M | 158K | ▲+225% Added · +109K sh | Q2 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.
Last quarter, 22 funds opened a new position in ETON and 18 added to an existing one, while 15 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 71 funds | $108.0B |
| AMAZON.COM INCAMZN | 68 funds | $75.8B |
| APPLE INCAAPL | 66 funds | $130.1B |
| JPMORGAN CHASE & COJPM | 66 funds | $24.7B |
| NVIDIA CORPNVDA | 65 funds | $170.8B |
| ELI LILLY & COLLY | 65 funds | $31.9B |
| ALPHABET INC-CL AGOOGL | 64 funds | $64.7B |
| VISA INC-CLASS A SHARESV | 64 funds | $23.3B |
| MICRON TECHNOLOGY INCMU | 64 funds | $15.2B |
| ALPHABET INC-CL CGOOG | 62 funds | $50.2B |
| ADVANCED MICRO DEVICESAMD | 62 funds | $16.6B |
| COSTCO WHOLESALE CORPCOST | 62 funds | $14.5B |
Ranked by how many of ETON's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 28, 2026 | MAIER PAUL V | Director | Sell (S) | 128 | $8K |
| Aug 28, 2026 | MAIER PAUL V | Director | Sell (S) | 13K | $812K |
| Aug 28, 2026 | MAIER PAUL V | Director | Sell (S) | 36K | $2.1M |
| Aug 24, 2026 | Krempa David | Chief Business Officer | Sell (S) | 25K | $1.6M |
| Aug 20, 2026 | BRYNJELSEN SEAN | President & CEO, Director | Sell (S) | 7K | $456K |
| Aug 20, 2026 | BRYNJELSEN SEAN | President & CEO, Director | Sell (S) | 36K | $2.2M |
| Aug 20, 2026 | BRYNJELSEN SEAN | President & CEO, Director | Sell (S) | 47K | $2.8M |
| Aug 19, 2026 | BRYNJELSEN SEAN | President & CEO, Director | Sell (S) | 9K | $562K |
| Jul 14, 2026 | Opaleye Management Inc. | 10% Owner | Sell (S) | 15K | $563K |
| Jul 14, 2026 | Opaleye Management Inc. | 10% Owner | Sell (S) | 13K | $500K |
| Jul 7, 2026 | Opaleye Management Inc. | 10% Owner | Sell (S) | 20K | $767K |
| Jul 7, 2026 | Opaleye Management Inc. | 10% Owner | Sell (S) | 7K | $257K |
Connected entities for ETON
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/ETON/capital-change-brief"
Use Arkolith's capital_change_brief for ETON. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ETON. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.