15 tracked 13F filers disclose a position in MEMX as of the latest SEC 13F filings, a combined $7.3M 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 | Quattro Advisors LLC | $1.8M | 45K | ▲New +45K sh | Q1 2026 | |
| 2 | LPL Financial LLC | $1.2M | 30K | ▲+183% Added · +19K sh | Q1 2026 | |
| 3 | Chicago Partners Investment Group LLC | $1.1M | 24K | —Held | Q2 2026 | |
| 4 | Rockefeller Capital Management L.P. | $672K | 17K | ▲+18% Added · +3K sh | Q1 2026 | |
| 5 | CITADEL ADVISORS LLC | $672K | 17K | ▲New +17K sh | Q1 2026 | |
| 6 | OLD MISSION CAPITAL LLC | $378K | 9K | ▼−74% Reduced · −27K sh | Q1 2026 | |
| 7 | MERCER GLOBAL ADVISORS INC /ADV | $343K | 9K | ▼−0.1% Reduced · −9 sh | Q1 2026 | |
| 8 | Ameritas Advisory Services, LLC | $322K | 8K | ▲+43% Added · +2K sh | Q1 2026 | |
| 9 | ENVESTNET ASSET MANAGEMENT INC | $306K | 8K | —Held | Q1 2026 | |
| 10 | CASTLE WEALTH MANAGEMENT LLC | $285K | 6K | —Held | Q2 2026 | |
| 11 | INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | $138K | 3K | ▼−30% Reduced · −1K sh | Q2 2026 | |
| 12 | Essential Investment Partners LLC | $100K | 2K | —Held | Q2 2026 | |
| 13 | OSAIC HOLDINGS, INC. | $28K | 706 | ▼−39% Reduced · −453 sh | Q1 2026 | |
| 14 | UBS Group AG | $14K | 348 | ▲New +348 sh | Q1 2026 | |
| 15 | Spire Wealth Management | $3K | 65 | —Held | 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, 2 funds opened a new position in MEMX and 1 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 | 7 funds | $3.5B |
| ISHARES CORE S&P 500 ETFIVV | 7 funds | $2.8B |
| TESLA INCTSLA | 7 funds | $865.7M |
| AMAZON.COM INCAMZN | 6 funds | $1.8B |
| APPLE INCAAPL | 6 funds | $1.6B |
| SS SPDR DOW JONES INDUS AVGDIA | 6 funds | $1.6B |
| META PLATFORMS INC-CLASS AMETA | 6 funds | $1.1B |
| MICROSOFT CORPMSFT | 6 funds | $1.1B |
| BROADCOM INCAVGO | 6 funds | $1.1B |
| ALPHABET INC-CL AGOOGL | 6 funds | $892.8M |
| JPMORGAN CHASE & COJPM | 6 funds | $773.6M |
| ALPHABET INC-CL CGOOG | 6 funds | $745.2M |
Ranked by how many of MEMX's institutional holders also hold each name, a cross-fund conviction signal.
| Class | 13F holders | Value held |
|---|---|---|
| MEMETF | 17 funds | $24.4M |
| MCHETF | 16 funds | $13.7M |
| MEMXthis pageEMERGING MARKETS | 15 funds | $7.3M |
| MKORSHS | 15 funds | $5.5M |
| MINVETF | 14 funds | $85.9M |
| 577125735ETF | 4 funds | $14.6M |
| 577125743EMERGING MKT DIS | 3 funds | $6.4M |
| 577125867EMRG MKTS INSTIT | 1 funds | $13.6M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
No filings captured for this ticker in the live stream yet.
Connected entities for MEMX
This ETF 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/MEMX/capital-change-brief"
Use Arkolith's capital_change_brief for MEMX. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + quarter-over-quarter ownership changes + end-of-day price history + the live filing stream, joined for MEMX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.