| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Global Alpha Capital Management Ltd. | $39.7M | 1.5M | —Held | Q1 2026 | |
| 2 | BlackRock, Inc. | $24.6M | 902K | ▼−4.2% Reduced · −40K sh | Q1 2026 | |
| 3 | DIMENSIONAL FUND ADVISORS LP | $20.4M | 748K | ▼−4.1% Reduced · −32K sh | Q1 2026 | |
| 4 | BROWN BROTHERS HARRIMAN & CO | $18.0M | 663K | —Held | Q1 2026 | |
| 5 | AMERICAN CENTURY COMPANIES INC | $12.9M | 475K | ▲+16% Added · +64K sh | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $11.5M | 422K | ▲New +422K sh | Q1 2026 | |
| 7 | D. E. Shaw & Co., Inc. | $10.2M | 374K | ▼−9.4% Reduced · −39K sh | Q1 2026 | |
| 8 | RENAISSANCE TECHNOLOGIES LLC | $9.2M | 338K | ▼−1.8% Reduced · −6K sh | Q1 2026 | |
| 9 | MORGAN STANLEY | $7.6M | 281K | ▲+88% Added · +131K sh | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $6.9M | 252K | ▲+1.9% Added · +5K sh | Q1 2026 | |
| 11 | STATE STREET CORP | $6.3M | 228K | ▼−0.6% Reduced · −1K sh | Q1 2026 | |
| 12 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $4.0M | 148K | ▲+17% Added · +21K sh | Q1 2026 | |
| 13 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $3.8M | 139K | ▲+45% Added · +43K sh | Q1 2026 | |
| 14 | Bank of New York Mellon Corp | $3.3M | 123K | ▲+0.9% Added · +1K sh | Q1 2026 | |
| 15 | GABELLI FUNDS LLC | $3.2M | 116K | ▼−26% Reduced · −41K sh | Q1 2026 | |
| 16 | FMR LLC | $2.9M | 107K | ▼−30% Reduced · −45K sh | Q1 2026 | |
| 17 | VANGUARD PORTFOLIO MANAGEMENT LLC | $2.6M | 95K | ▲New +95K sh | Q1 2026 | |
| 18 | Empowered Funds, LLC | $2.5M | 94K | ▲+9.9% Added · +8K sh | Q1 2026 | |
| 19 | SEI INVESTMENTS CO | $2.3M | 86K | ▲+115% Added · +46K sh | Q1 2026 | |
| 20 | NORTHERN TRUST CORP | $2.3M | 84K | ▲+3.0% Added · +2K sh | Q1 2026 | |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.2M | 82K | ▲+0.3% Added · +213 sh | Q1 2026 | |
| 22 | GOLDMAN SACHS GROUP INC | $2.0M | 75K | ▼−20% Reduced · −19K sh | Q1 2026 | |
| 23 | Trexquant Investment LP | $1.9M | 68K | ▼−30% Reduced · −30K sh | Q1 2026 | |
| 24 | VANGUARD FIDUCIARY TRUST CO | $1.7M | 64K | ▲New +64K sh | Q1 2026 | |
| 25 | TWO SIGMA INVESTMENTS, LP | $1.5M | 55K | ▲New +55K 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.
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 39 funds | $12.3B |
| APPLE INCAAPL | 38 funds | $16.6B |
| AMAZON.COM INCAMZN | 38 funds | $9.4B |
| META PLATFORMS INC-CLASS AMETA | 38 funds | $5.1B |
| VISA INC-CLASS A SHARESV | 38 funds | $2.9B |
| ALPHABET INC-CL CGOOG | 37 funds | $7.4B |
| ALPHABET INC-CL AGOOGL | 37 funds | $7.3B |
| BROADCOM INCAVGO | 37 funds | $6.5B |
| JPMORGAN CHASE & COJPM | 37 funds | $4.4B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 37 funds | $4.0B |
| ELI LILLY & COLLY | 37 funds | $3.1B |
| COSTCO WHOLESALE CORPCOST | 37 funds | $2.9B |
Ranked by how many of ATNI's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 29, 2026 | PRIOR CORNELIUS B JR | 10% Owner | Sell (S) | 500 | $14K |
| Jun 29, 2026 | PRIOR CORNELIUS B JR | 10% Owner | Sell (S) | 1K | $28K |
| Jun 29, 2026 | PRIOR CORNELIUS B JR | 10% Owner | Sell (S) | 1K | $28K |
| Jun 29, 2026 | PRIOR CORNELIUS B JR | 10% Owner | Sell (S) | 2K | $55K |
| Jun 29, 2026 | PRIOR CORNELIUS B JR | 10% Owner | Sell (S) | 500 | $14K |
| Jun 26, 2026 | PRIOR CORNELIUS B JR | 10% Owner | Sell (S) | 500 | $14K |
| Jun 25, 2026 | PRIOR CORNELIUS B JR | 10% Owner | Sell (S) | 500 | $14K |
| Jun 25, 2026 | PRIOR CORNELIUS B JR | 10% Owner | Sell (S) | 500 | $14K |
| Jun 12, 2026 | PRIOR CORNELIUS B JR | 10% Owner | Sell (S) | 19K | $534K |
| Jun 11, 2026 | PRIOR CORNELIUS B JR | 10% Owner | Sell (S) | 2K | $55K |
| Jun 2, 2026 | PRIOR CORNELIUS B JR | 10% Owner | Sell (S) | 6K | $170K |
| Jun 1, 2026 | PRIOR CORNELIUS B JR | 10% Owner | Sell (S) | 13K | $357K |
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/ATNI/capital-change-brief"
Use Arkolith's capital_change_brief for ATNI. 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 ATNI. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.