Among active 13F managers last quarter, 2 added and 3 reduced; the largest holder to move was Quattro Advisors LLC (+25%).
15 tracked 13F filers disclose a position in MEMX as of the latest SEC 13F filings, a combined $8.9M 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 | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Quattro Advisors LLC | 56K | $2.8M | ▲+25% Added · +11K sh | Q2 2026 | |
| 2 | LPL Financial LLC | 30K | $1.2M | ▲+183% Added · +19K sh | Q1 2026 | |
| 3 | Chicago Partners Investment Group LLC | 24K | $1.1M | —Held | Q2 2026 | |
| 4 | Rockefeller Capital Management L.P. | 17K | $672K | ▲+18% Added · +3K sh | Q1 2026 | |
| 5 | Ameritas Advisory Services, LLC | 17K | $839K | ▲+108% Added · +9K sh | Q2 2026 | |
| 6 | Citadel Advisors LLC | 13K | $647K | ▼−23% Reduced · −4K sh | Q2 2026 | |
| 7 | Old Mission Capital LLC | 9K | $378K | ▼−74% Reduced · −27K sh | Q1 2026 | |
| 8 | Mercer Global Advisors Inc | 9K | $343K | ▼−0.1% Reduced · −9 sh | Q1 2026 | |
| 9 | Envestnet Asset Management Inc | 8K | $306K | —Held | Q1 2026 | |
| 10 | Castle Wealth Management LLC | 6K | $285K | —Held | Q2 2026 | |
| 11 | International Assets Investment Management, LLC | 3K | $138K | ▼−30% Reduced · −1K sh | Q2 2026 | |
| 12 | Essential Investment Partners LLC | 2K | $100K | —Held | Q2 2026 | |
| 13 | Osaic Holdings, Inc. | 706 | $28K | ▼−39% Reduced · −453 sh | Q1 2026 | |
| 14 | UBS Group AG | 348 | $14K | ▲New +348 sh | Q1 2026 | |
| 15 | Spire Wealth Management | 65 | $3K | —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 added to an existing position in MEMX, while 3 reduced. 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 | Their position there |
|---|---|---|
| Ishares Core S&P 500 ETFIVV | 7 funds | $13.4B |
| Nvidia CorpNVDA | 7 funds | $2.7B |
| Tesla IncTSLA | 7 funds | $615.9M |
| Amazon.com IncAMZN | 6 funds | $2.7B |
| Apple IncAAPL | 6 funds | $2.5B |
| Microsoft CorpMSFT | 6 funds | $1.5B |
| Broadcom IncAVGO | 6 funds | $1.2B |
| Alphabet Inc-CL AGOOGL | 6 funds | $1.1B |
| Advanced Micro DevicesAMD | 6 funds | $1.0B |
| Alphabet Inc-CL CGOOG | 6 funds | $967.3M |
| Abbvie IncABBV | 6 funds | $829.9M |
| SS SPDR S&P 500 ETF Trust-USSPY | 6 funds | $827.1M |
Ranked by how many of MEMX's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in MEMX.
| Class | 13F holders | Value held |
|---|---|---|
| MEMETF | 21 funds | $28.6M |
| MINVETF | 20 funds | $95.3M |
| MCHETF | 17 funds | $13.9M |
| MKORSHS | 16 funds | $5.6M |
| MEMXthis pageEMERGING MARKETS | 15 funds | $8.9M |
| 577125735ETF | 4 funds | $14.6M |
| MEMSETF | 4 funds | $12.5M |
| 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.