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/ATEN/capital-change-brief"
Use Arkolith's capital_change_brief for ATEN. 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. | $302.6M | 13.1M | ▲+0.8% Added · +103K sh | Q1 2026 | |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $78.3M | 3.4M | ▲New +3.4M sh | Q1 2026 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $72.2M | 3.1M | ▲New +3.1M sh | Q1 2026 | |
| 4 | STATE STREET CORP | $71.4M | 3.1M | ▼−0.8% Reduced · −26K sh | Q1 2026 | |
| 5 | Boston Trust Walden Corp | $50.2M | 2.2M | ▼−11% Reduced · −267K sh | Q1 2026 | |
| 6 | BARCLAYS PLC | $43.3M | 1.9M | ▲+1.8% Added · +33K sh | Q1 2026 | |
| 7 | RENAISSANCE TECHNOLOGIES LLC | $41.3M | 1.8M | ▼−16% Reduced · −350K sh | Q1 2026 | |
| 8 | FIRST TRUST ADVISORS LP | $39.8M | 1.7M | ▼−30% Reduced · −744K sh | Q1 2026 | |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $39.7M | 1.7M | ▼−3.4% Reduced · −60K sh | Q1 2026 | |
| 10 | DIMENSIONAL FUND ADVISORS LP | $37.8M | 1.6M | ▼−0.8% Reduced · −13K sh | Q1 2026 | |
| 11 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $36.0M | 1.6M | ▲+7.4% Added · +107K sh | Q1 2026 | |
| 12 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $34.6M | 1.5M | ▲+37% Added · +402K sh | Q1 2026 | |
| 13 | PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | $33.8M | 1.5M | ▲+1.7% Added · +24K sh | Q1 2026 | |
| 14 | TWO SIGMA INVESTMENTS, LP | $30.5M | 1.3M | ▲+80% Added · +586K sh | Q1 2026 | |
| 15 | GOLDMAN SACHS GROUP INC | $27.4M | 1.2M | ▲+15% Added · +152K sh | Q1 2026 | |
| 16 | PRICE T ROWE ASSOCIATES INC /MD/ | $24.8M | 1.1M | ▼−30% Reduced · −464K sh | Q1 2026 | |
| 17 | PRUDENTIAL FINANCIAL INC | $20.5M | 885K | ▲12× Added · +812K sh | Q1 2026 | |
| 18 | Boston Partners | $19.0M | 816K | ▼−2.9% Reduced · −24K sh | Q1 2026 | |
| 19 | MORGAN STANLEY | $18.8M | 813K | ▲+1.1% Added · +9K sh | Q1 2026 | |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $17.2M | 744K | ▲+2.1% Added · +15K sh | Q1 2026 | |
| 21 | NORTHERN TRUST CORP | $16.3M | 704K | ▲+2.4% Added · +17K sh | Q1 2026 | |
| 22 | Bank of New York Mellon Corp | $15.3M | 661K | ▼−0.8% Reduced · −5K sh | Q1 2026 | |
| 23 | JANE STREET GROUP, LLC | $13.8M | 596K | ▲New +596K sh | Q1 2026 | |
| 24 | DEPRINCE RACE & ZOLLO INC | $13.1M | 565K | ▲New +565K sh | Q1 2026 | |
| 25 | ROYAL BANK OF CANADA | $12.4M | 536K | ▲100× Added · +531K 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 6, 2026 | Weber Robert Scott | General Counsel | Tax withholding (F) | 2K | $69K |
| May 15, 2026 | Trivedi Dhrupad | Chief Executive Officer, Director | Tax withholding (F) | 33K | $921K |
| May 15, 2026 | Weber Robert Scott | General Counsel | Tax withholding (F) | 2K | $54K |
| May 15, 2026 | Caron Michelle Elizabeth | Chief Financial Officer | Tax withholding (F) | 760 | $21K |
| May 6, 2026 | Trivedi Dhrupad | Chief Executive Officer, Director | Tax withholding (F) | 33K | $891K |
| May 6, 2026 | Weber Robert Scott | General Counsel | Tax withholding (F) | 2K | $52K |
| May 6, 2026 | Caron Michelle Elizabeth | Chief Financial Officer | Tax withholding (F) | 3K | $81K |
| May 5, 2026 | Singer Eric | Director | Sell (S) | 25K | $672K |
| May 5, 2026 | Trivedi Dhrupad | Chief Executive Officer, Director | Option exercise (M) | 63K | $0 |
| May 5, 2026 | Trivedi Dhrupad | Chief Executive Officer, Director | Option exercise (M) | 66K | $0 |
| May 5, 2026 | Trivedi Dhrupad | Chief Executive Officer, Director | Option exercise (M) | 63K | $0 |
| May 5, 2026 | Trivedi Dhrupad | Chief Executive Officer, Director | Option exercise (M) | 66K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 78 funds | $33.6B |
| ALPHABET INC-CL AGOOGL | 77 funds | $22.3B |
| JPMORGAN CHASE & COJPM | 77 funds | $11.2B |
| ELI LILLY & COLLY | 75 funds | $8.9B |
| MICRON TECHNOLOGY INCMU | 75 funds | $7.5B |
| APPLE INCAAPL | 74 funds | $39.7B |
| AMAZON.COM INCAMZN | 74 funds | $24.2B |
| BROADCOM INCAVGO | 74 funds | $17.4B |
| JOHNSON & JOHNSONJNJ | 74 funds | $7.0B |
| UNITEDHEALTH GROUP INCUNH | 74 funds | $3.0B |
| MASTERCARD INC - AMA | 73 funds | $5.7B |
| WELLS FARGO & COWFC | 73 funds | $2.8B |
Ranked by how many of ATEN'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 ATEN. 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.