196 tracked 13F filers disclose a position in MDXG as of the latest SEC 13F filings, a combined $290.2M 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 | BlackRock, Inc. | $47.0M | 11.9M | ▲+5.1% Added · +578K sh | Q1 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $20.4M | 5.2M | →First observed position No prior filed position | Q1 2026 | |
| 3 | STATE STREET CORP | $20.0M | 5.1M | ▲+33% Added · +1.2M sh | Q1 2026 | |
| 4 | PARADIGM CAPITAL MANAGEMENT INC/NY | $13.5M | 3.4M | ▲+39% Added · +959K sh | Q1 2026 | |
| 5 | Nantahala Capital Management, LLC | $13.4M | 3.4M | ▲+41% Added · +981K sh | Q1 2026 | |
| 6 | RENAISSANCE TECHNOLOGIES LLC | $11.9M | 3.0M | ▲+22% Added · +553K sh | Q1 2026 | |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $11.4M | 2.9M | ▲+1.4% Added · +39K sh | Q1 2026 | |
| 8 | First Light Asset Management, LLC | $11.2M | 2.8M | ▼−6.5% Reduced · −196K sh | Q1 2026 | |
| 9 | DIMENSIONAL FUND ADVISORS LP | $10.6M | 2.7M | ▲+8.7% Added · +215K sh | Q1 2026 | |
| 10 | PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | $8.0M | 2.0M | ▲+0.6% Added · +13K sh | Q1 2026 | |
| 11 | MARSHALL WACE, LLP | $7.4M | 1.9M | ▲+35% Added · +480K sh | Q1 2026 | |
| 12 | Qube Research & Technologies Ltd | $6.5M | 1.7M | ▲+20% Added · +271K sh | Q1 2026 | |
| 13 | CANNELL CAPITAL LLC | $5.9M | 1.5M | ▲+1.7% Added · +26K sh | Q1 2026 | |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $5.4M | 1.4M | ▲+13% Added · +160K sh | Q1 2026 | |
| 15 | GOLDMAN SACHS GROUP INC | $4.7M | 1.2M | ▲+8.7% Added · +95K sh | Q1 2026 | |
| 16 | VANGUARD PORTFOLIO MANAGEMENT LLC | $4.4M | 1.1M | →First observed position No prior filed position | Q1 2026 | |
| 17 | DEUTSCHE BANK AG\ | $4.1M | 1.0M | ▲+709% Added · +907K sh | Q1 2026 | |
| 18 | NORTHERN TRUST CORP | $4.0M | 1.0M | ▲+0.7% Added · +7K sh | Q1 2026 | |
| 19 | AQR CAPITAL MANAGEMENT LLC | $3.6M | 913K | ▲+124% Added · +505K sh | Q1 2026 | |
| 20 | VANGUARD FIDUCIARY TRUST CO | $3.3M | 823K | →First observed position No prior filed position | Q1 2026 | |
| 21 | MORGAN STANLEY | $3.2M | 813K | ▲+12% Added · +85K sh | Q1 2026 | |
| 22 | CITADEL ADVISORS LLC | $3.1M | 776K | ▲+73% Added · +327K sh | Q1 2026 | |
| 23 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $3.1M | 776K | ▲+23% Added · +147K sh | Q1 2026 | |
| 24 | UBS Group AG | $2.7M | 673K | ▲+153% Added · +407K sh | Q1 2026 | |
| 25 | PRUDENTIAL FINANCIAL INC | $2.6M | 669K | ▲+66% Added · +267K 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.
Last quarter, 3 funds opened a new position in MDXG and 31 added to an existing one, while 16 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 | 94 funds | $206.4B |
| ALPHABET INC-CL AGOOGL | 92 funds | $120.7B |
| BROADCOM INCAVGO | 92 funds | $118.7B |
| VISA INC-CLASS A SHARESV | 92 funds | $46.9B |
| META PLATFORMS INC-CLASS AMETA | 91 funds | $79.9B |
| ELI LILLY & COLLY | 91 funds | $57.2B |
| COSTCO WHOLESALE CORPCOST | 91 funds | $28.2B |
| NVIDIA CORPNVDA | 90 funds | $289.4B |
| APPLE INCAAPL | 90 funds | $218.3B |
| AMAZON.COM INCAMZN | 90 funds | $145.2B |
| JPMORGAN CHASE & COJPM | 90 funds | $49.0B |
| ABBOTT LABORATORIESABT | 90 funds | $14.5B |
Ranked by how many of MDXG's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Nov 6, 2025 | Maersk-Moller Kimberly | Chief Commercial Officer | Sell (S) | 58K | $433K |
| May 2, 2025 | Capper Joseph H | Chief Executive Officer | Buy (P) | 200K | $1.3M |
| Mar 17, 2025 | Maersk-Moller Kimberly | Chief Commercial Officer | Sell (S) | 2K | $14K |
| Mar 13, 2025 | Maersk-Moller Kimberly | Chief Commercial Officer | Sell (S) | 4K | $32K |
| Mar 13, 2025 | Hulse William Frank IV | General Counsel and CAO | Sell (S) | 34K | $270K |
| Mar 13, 2025 | Hulse William Frank IV | General Counsel and CAO | Sell (S) | 20K | $161K |
| Mar 10, 2025 | Hulse William Frank IV | General Counsel and CAO | Sell (S) | 81K | $635K |
| Feb 28, 2025 | Maersk-Moller Kimberly | Chief Commercial Officer | Sell (S) | 2K | $18K |
| Feb 13, 2025 | Whitlow Ricci S | Chief Operating Officer | Sell (S) | 61K | $509K |
| Mar 13, 2024 | Hulse William Frank IV | General Counsel and CAO | Sell (S) | 20K | $162K |
| Feb 20, 2024 | Whitlow Ricci S | Chief Operating Officer | Sell (S) | 15K | $122K |
| Feb 16, 2024 | Whitlow Ricci S | Chief Operating Officer | Sell (S) | 15K | $125K |
Connected entities for MDXG
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/MDXG/capital-change-brief"
Use Arkolith's capital_change_brief for MDXG. 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 MDXG. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.