34 tracked 13F filers disclose a position in MDXH as of the latest SEC 13F filings, a combined $19.1M 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 | AWM Investment Company, Inc. | $12.0M | 5.2M | —Held | Q1 2026 | |
| 2 | PERKINS CAPITAL MANAGEMENT INC | $580K | 1.4M | ▼−4.4% Reduced · −65K sh | Q2 2026 | |
| 3 | MILLENNIUM MANAGEMENT LLC | $1.3M | 545K | ▲+366% Added · +428K sh | Q1 2026 | |
| 4 | NORTHERN TRUST CORP | $1.1M | 495K | ▼−0.7% Reduced · −4K sh | Q1 2026 | |
| 5 | RENAISSANCE TECHNOLOGIES LLC | $701K | 305K | ▲+22% Added · +55K sh | Q1 2026 | |
| 6 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $616K | 268K | ▲+8.4% Added · +21K sh | Q1 2026 | |
| 7 | Panoramic Capital, LLC | $549K | 239K | —Held | Q1 2026 | |
| 8 | KENNEDY CAPITAL MANAGEMENT LLC | $473K | 205K | ▼−48% Reduced · −190K sh | Q1 2026 | |
| 9 | Shay Capital LLC | $345K | 150K | ▼−12% Reduced · −21K sh | Q1 2026 | |
| 10 | BlackRock, Inc. | $240K | 104K | ▲+5.2% Added · +5K sh | Q1 2026 | |
| 11 | GOLDMAN SACHS GROUP INC | $227K | 99K | ▲+17% Added · +14K sh | Q1 2026 | |
| 12 | Russell Investments Group, Ltd. | $158K | 69K | ▼−65% Reduced · −125K sh | Q1 2026 | |
| 13 | Hudson Bay Capital Management LP | $144K | 62K | ▲+12% Added · +7K sh | Q1 2026 | |
| 14 | CITADEL ADVISORS LLC | $137K | 60K | ▼−37% Reduced · −35K sh | Q1 2026 | |
| 15 | MARSHALL WACE, LLP | $115K | 50K | ▼−71% Reduced · −120K sh | Q1 2026 | |
| 16 | BANK OF AMERICA CORP /DE/ | $100K | 43K | ▲+214% Added · +30K sh | Q1 2026 | |
| 17 | XTX Topco Ltd | $87K | 38K | ▼−7.7% Reduced · −3K sh | Q1 2026 | |
| 18 | FIRST MANHATTAN CO. LLC. | $62K | 27K | —Held | Q1 2026 | |
| 19 | FAS Wealth Partners, Inc. | $9K | 23K | —Held | Q2 2026 | |
| 20 | TWO SIGMA INVESTMENTS, LP | $49K | 21K | ▼−56% Reduced · −27K sh | Q1 2026 | |
| 21 | Point72 Asset Management, L.P. | $48K | 21K | ▼−68% Reduced · −44K sh | Q1 2026 | |
| 22 | Lido Advisors, LLC | $8K | 20K | ▲+93% Added · +10K sh | Q2 2026 | |
| 23 | CITIGROUP INC | $44K | 19K | ▼−24% Reduced · −6K sh | Q1 2026 | |
| 24 | MORGAN STANLEY | $38K | 16K | ▼−71% Reduced · −40K sh | Q1 2026 | |
| 25 | Intesa Sanpaolo Wealth Management | $4K | 10K | —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, 0 funds opened a new position in MDXH and 3 added to an existing one, while 10 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 |
|---|---|---|
| ELI LILLY & COLLY | 16 funds | $2.3B |
| NVIDIA CORPNVDA | 15 funds | $19.6B |
| MICROSOFT CORPMSFT | 15 funds | $8.9B |
| GILEAD SCIENCES INCGILD | 15 funds | $1.7B |
| APPLE INCAAPL | 14 funds | $13.0B |
| AMAZON.COM INCAMZN | 14 funds | $10.3B |
| ALPHABET INC-CL AGOOGL | 14 funds | $7.6B |
| BROADCOM INCAVGO | 14 funds | $6.6B |
| META PLATFORMS INC-CLASS AMETA | 14 funds | $5.9B |
| PALANTIR TECHNOLOGIES INC-APLTR | 14 funds | $3.7B |
| COSTCO WHOLESALE CORPCOST | 14 funds | $3.0B |
| UNITEDHEALTH GROUP INCUNH | 14 funds | $2.9B |
Ranked by how many of MDXH's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 13, 2026 | MVM Partners, LLC | Director | Buy (P) | 2.2M | $1000K |
| Feb 3, 2023 | MVM Partners, LLC | 10% Owner | Buy (P) | 1.0M | $4.0M |
Connected entities for MDXH
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/MDXH/capital-change-brief"
Use Arkolith's capital_change_brief for MDXH. 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 MDXH. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.