23 tracked 13F filers disclose a position in MSTX as of the latest SEC 13F filings, a combined $7.6M 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 | StoneX Group Inc. | $2.9M | 192K | ▲+313% Added · +145K sh | Q2 2026 | |
| 2 | GOLDMAN SACHS GROUP INC | $782K | 40K | ▲New +40K sh | Q1 2026 | |
| 3 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $674K | 34K | ▲New +34K sh | Q1 2026 | |
| 4 | RENAISSANCE TECHNOLOGIES LLC | $547K | 28K | ▲New +28K sh | Q1 2026 | |
| 5 | GROUP ONE TRADING LLC | $491K | 25K | ▲+866% Added · +22K sh | Q1 2026 | |
| 6 | Mariner, LLC | $423K | 22K | ▼−75% Reduced · −65K sh | Q1 2026 | |
| 7 | Optiver Holding B.V. | $412K | 21K | ▲New +21K sh | Q1 2026 | |
| 8 | Jump Financial, LLC | $333K | 17K | ▼−68% Reduced · −37K sh | Q1 2026 | |
| 9 | Concurrent Investment Advisors, LLC | $113K | 15K | ▲New +15K sh | Q2 2026 | |
| 10 | FOUNDATIONS INVESTMENT ADVISORS, LLC | $293K | 15K | ▲New +15K sh | Q1 2026 | |
| 11 | JANE STREET GROUP, LLC | $234K | 12K | ▲New +12K sh | Q1 2026 | |
| 12 | HighTower Advisors, LLC | $221K | 11K | ▲New +11K sh | Q1 2026 | |
| 13 | MORGAN STANLEY | $58K | 3K | ▲New +3K sh | Q1 2026 | |
| 14 | Parallel Advisors, LLC | $43K | 2K | ▼−83% Reduced · −11K sh | Q1 2026 | |
| 15 | Bogart Wealth, LLC | $27K | 1K | ▼−83% Reduced · −7K sh | Q1 2026 | |
| 16 | Colonial Trust Advisors | $7K | 1K | ▲New +1K sh | Q2 2026 | |
| 17 | UBS Group AG | $6K | 324 | ▲New +324 sh | Q1 2026 | |
| 18 | Activest Wealth Management | $4K | 218 | ▲New +218 sh | Q1 2026 | |
| 19 | Chung Wu Investment Group, LLC | $1K | 200 | ▲New +200 sh | Q2 2026 | |
| 20 | MassMutual Private Wealth & Trust, FSB | $3K | 153 | ▼−90% Reduced · −1K sh | Q1 2026 | |
| 21 | EverSource Wealth Advisors, LLC | $3K | 130 | ▲New +130 sh | Q1 2026 | |
| 22 | Clearstead Advisors, LLC | $231 | 31 | —Held | Q2 2026 | |
| 23 | Fortitude Family Office, LLC | $67 | 9 | —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, 5 funds opened a new position in MSTX 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 | 10 funds | $1.3B |
| PALANTIR TECHNOLOGIES INC-APLTR | 10 funds | $1.1B |
| MICRON TECHNOLOGY INCMU | 10 funds | $947.2M |
| MICROSOFT CORPMSFT | 10 funds | $789.4M |
| ALPHABET INC-CL AGOOGL | 10 funds | $687.6M |
| CHEVRON CORPCVX | 10 funds | $555.1M |
| JPMORGAN CHASE & COJPM | 10 funds | $539.6M |
| BROADCOM INCAVGO | 10 funds | $518.9M |
| META PLATFORMS INC-CLASS AMETA | 10 funds | $394.2M |
| INTEL CORPINTC | 10 funds | $368.6M |
| VISA INC-CLASS A SHARESV | 10 funds | $356.0M |
| ELI LILLY & COLLY | 10 funds | $344.1M |
Ranked by how many of MSTX's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Mar 27, 2015 | Roberts Brandi | Chief Financial Officer & SVP | Buy (P) | 18K | $9K |
| Mar 26, 2015 | Roberts Brandi | Chief Financial Officer & SVP | Buy (P) | 20K | $10K |
| Class | 13F holders | Value held |
|---|---|---|
| MSTXthis pageExchange Traded Fund | 23 funds | $7.6M |
| SMCXETF | 13 funds | $4.5M |
| NVOXETF | 10 funds | $3.9M |
| IONZDEFIANCE DAILY T | 9 funds | $2.9M |
| 88636W619DEFIANCE DAILY T | 9 funds | $1.6M |
| ORCXETF | 8 funds | $8.1M |
| SMCZDEFIANCE DAILY | 8 funds | $4.2M |
| PLTZmc | 6 funds | $2.2M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for MSTX
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/MSTX/capital-change-brief"
Use Arkolith's capital_change_brief for MSTX. 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 MSTX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.