40 tracked 13F filers disclose a position in ATLX as of the latest SEC 13F filings, a combined $18.7M 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 | CITADEL ADVISORS LLC | $5.2M | 1.2M | ▼−22% Reduced · −337K sh | Q1 2026 | |
| 2 | MARSHALL WACE, LLP | $3.8M | 862K | ▲+40% Added · +248K sh | Q1 2026 | |
| 3 | Waratah Capital Advisors Ltd. | $3.3M | 749K | —Held | Q1 2026 | |
| 4 | Cross Staff Investments Inc | $2.1M | 559K | —Held | Q2 2026 | |
| 5 | JANE STREET GROUP, LLC | $891K | 205K | ▲+35% Added · +54K sh | Q1 2026 | |
| 6 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $722K | 166K | ▼−39% Reduced · −105K sh | Q1 2026 | |
| 7 | GROUP ONE TRADING LLC | $543K | 125K | ▲New +125K sh | Q1 2026 | |
| 8 | SIMPLEX TRADING, LLC | $495K | 114K | ▲+140% Added · +66K sh | Q1 2026 | |
| 9 | UBS Group AG | $409K | 94K | ▲+56% Added · +34K sh | Q1 2026 | |
| 10 | GOLDMAN SACHS GROUP INC | $301K | 69K | ▲+38% Added · +19K sh | Q1 2026 | |
| 11 | Lighthouse Investment Partners, LLC | $261K | 60K | —Held | Q1 2026 | |
| 12 | D. E. Shaw & Co., Inc. | $217K | 50K | ▲New +50K sh | Q1 2026 | |
| 13 | ALPS ADVISORS INC | $155K | 42K | ▲+59% Added · +16K sh | Q2 2026 | |
| 14 | IMC-Chicago, LLC | $122K | 28K | ▲New +28K sh | Q1 2026 | |
| 15 | Independent Wealth Network Inc. | $63K | 17K | ▲New +17K sh | Q2 2026 | |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | $46K | 13K | ▼−8.9% Reduced · −1K sh | Q2 2026 | |
| 17 | Creative Planning | $54K | 13K | —Held | Q1 2026 | |
| 18 | Prospera Financial Services Inc | $37K | 10K | —Held | Q2 2026 | |
| 19 | MORGAN STANLEY | $24K | 6K | ▲+245% Added · +4K sh | Q1 2026 | |
| 20 | OSAIC HOLDINGS, INC. | $20K | 5K | ▼−18% Reduced · −1K sh | Q1 2026 | |
| 21 | Tower Research Capital LLC (TRC) | $19K | 4K | ▲New +4K sh | Q1 2026 | |
| 22 | ROYAL BANK OF CANADA | $18K | 4K | ▲+255% Added · +3K sh | Q1 2026 | |
| 23 | BARCLAYS PLC | $9K | 2K | ▲New +2K sh | Q1 2026 | |
| 24 | Grove Bank & Trust | $7K | 2K | ▲New +2K sh | Q2 2026 | |
| 25 | Wealth Enhancement Trust Services, Inc. | $7K | 2K | —Held | 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, 3 funds opened a new position in ATLX and 4 added to an existing one, while 2 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 |
|---|---|---|
| NVIDIA CORPNVDA | 15 funds | $9.2B |
| APPLE INCAAPL | 15 funds | $6.1B |
| AMAZON.COM INCAMZN | 15 funds | $4.9B |
| ALPHABET INC-CL AGOOGL | 15 funds | $4.1B |
| MICRON TECHNOLOGY INCMU | 15 funds | $3.4B |
| ALPHABET INC-CL CGOOG | 15 funds | $3.0B |
| JPMORGAN CHASE & COJPM | 15 funds | $2.0B |
| COSTCO WHOLESALE CORPCOST | 15 funds | $1.8B |
| JOHNSON & JOHNSONJNJ | 15 funds | $1.4B |
| MERCK & CO. INC.MRK | 15 funds | $1.2B |
| VISA INC-CLASS A SHARESV | 15 funds | $1.1B |
| WALMART INCWMT | 15 funds | $783.8M |
Ranked by how many of ATLX's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| May 1, 2026 | Noriega Roger | Director | Sell (S) | 8K | $42K |
| May 1, 2026 | Noriega Roger | Director | Sell (S) | 5K | $28K |
| Apr 17, 2026 | Miranda Tiago | CHIEF FINANCIAL OFFICER | Sell (S) | 6K | $29K |
| Apr 16, 2026 | Miranda Tiago | CHIEF FINANCIAL OFFICER | Sell (S) | 4K | $22K |
| Apr 15, 2026 | Noriega Roger | Director | Sell (S) | 10K | $47K |
| Apr 15, 2026 | Noriega Roger | Director | Sell (S) | 150 | $710 |
| Nov 28, 2025 | Noriega Roger | Director | Sell (S) | 2K | $12K |
| Nov 28, 2025 | Noriega Roger | Director | Sell (S) | 5K | $25K |
| Nov 28, 2025 | Noriega Roger | Director | Sell (S) | 8K | $38K |
| Sep 26, 2025 | Noriega Roger | Director | Sell (S) | 10K | $50K |
| Sep 26, 2025 | Noriega Roger | Director | Sell (S) | 10K | $50K |
| Sep 26, 2025 | Noriega Roger | Director | Sell (S) | 10K | $51K |
Connected entities for ATLX
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/ATLX/capital-change-brief"
Use Arkolith's capital_change_brief for ATLX. 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 ATLX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.