Among active 13F managers last quarter, 6 opened and 1 added, while none reduced or exited; the largest holder to move was GTS Securities LLC (+406%).
13 tracked 13F filers disclose a position in MARS as of the latest SEC 13F filings, a combined $5.3M 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 | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | GTS Securities LLC | 93K | $2.4M | ▲+406% Added · +75K sh | Q1 2026 | |
| 2 | Jane Street Group, LLC | 35K | $899K | ▲New +35K sh | Q1 2026 | |
| 3 | Citadel Advisors LLC | 26K | $825K | ▲New +26K sh | Q2 2026 | |
| 4 | Mgo One Seven LLC | 23K | $740K | ▲New +23K sh | Q2 2026 | |
| 5 | Prelude Capital Management, LLC | 10K | $323K | ▲New +10K sh | Q2 2026 | |
| 6 | Group One Trading LLC | 3K | $97K | ▲New +3K sh | Q2 2026 | |
| 7 | UBS Group AG | 2K | $42K | ▲New +2K sh | Q1 2026 | |
| 8 | Steward Partners Investment Advisory, LLC | 215 | $7K | ▲New +215 sh | Q2 2026 | |
| 9 | Bogart Wealth, LLC | 200 | $5K | ▲New +200 sh | Q1 2026 | |
| 10 | CNB Bank | 100 | $3K | ▲New +100 sh | Q2 2026 | |
| 11 | Ameritas Advisory Services, LLC | 30 | $969 | ▲New +30 sh | Q2 2026 | |
| 12 | NFSG Corp | 30 | $969 | ▲New +30 sh | Q2 2026 | |
| 13 | Main Street Group, LTD | 2 | $65 | ▲New +2 sh | 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, 6 funds opened a new position in MARS and 1 added to an existing one, while none reduced or exited. 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 |
|---|---|---|
| Amazon.com IncAMZN | 7 funds | $2.8B |
| Nvidia CorpNVDA | 7 funds | $2.8B |
| Apple IncAAPL | 7 funds | $2.5B |
| Microsoft CorpMSFT | 7 funds | $1.6B |
| Broadcom IncAVGO | 7 funds | $1.3B |
| Warner Bros Discovery IncWBD | 7 funds | $1.2B |
| Alphabet Inc-CL AGOOGL | 7 funds | $1.2B |
| Eli Lilly & CoLLY | 7 funds | $1.2B |
| BlackRock IncBLK | 7 funds | $1.1B |
| Advanced Micro DevicesAMD | 7 funds | $1.0B |
| Alphabet Inc-CL CGOOG | 7 funds | $995.6M |
| Applied Materials IncAMAT | 7 funds | $843.1M |
Ranked by how many of MARS's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in MARS.
| Class | 13F holders | Value held |
|---|---|---|
| DRAMmc | 258 funds | $2.6B |
| QDTEmc | 35 funds | $30.7M |
| XDTEUIT EXCHANGE TRADED | 30 funds | $20.3M |
| OZEMMF Closed and MF Open | 28 funds | $12.3M |
| YBTCETF | 15 funds | $14.9M |
| RDTERUSSELL 2000 0DT | 15 funds | $12.9M |
| MAGYmc | 14 funds | $14.4M |
| MARSthis pageSTOK | 13 funds | $5.3M |
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 MARS
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/MARS/capital-change-brief"
Use Arkolith's capital_change_brief for MARS. 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 MARS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.