Among active 13F managers last quarter, 1 opened and none reduced or exited; the largest holder to move was Ameritas Advisory Services, LLC (new position). No recent Form 4 insider filings for OARK.
Funds lean in and no leg opposes.
8 tracked 13F filers disclose a position in OARK as of the latest SEC 13F filings, a combined $23.1M 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 | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Tidal Investments LLC | 684K | $21.5M | ▲+12% Added · +72K sh | Q2 2026 | |
| 2 | Susquehanna International Group, LLP | 30K | $919K | ▲+212% Added · +20K sh | Q1 2026 | |
| 3 | Jane Street Group, LLC | 22K | $668K | ▲+30% Added · +5K sh | Q1 2026 | |
| 4 | Simplex Trading, LLC | 248 | $8K | ▼−74% Reduced · −718 sh | Q1 2026 | |
| 5 | Ameritas Advisory Services, LLC | 193 | $6K | ▲New +193 sh | Q2 2026 | |
| 6 | Wells Fargo & Company | 2 | $74 | ▲+100% Added · +1 sh | Q1 2026 | |
| 7 | Steward Partners Investment Advisory, LLC | 2 | $69 | ▲New +2 sh | Q2 2026 | |
| 8 | FMR LLC | 1 | $31 | —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, 1 fund opened a new position in OARK, 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 |
|---|---|---|
| Apple IncAAPL | 1 funds | $124.5M |
| Janus Henderson Aaa Clo ETFJAAA | 1 funds | $112.7M |
| SS SPDR P S&P 500 Growth ETFSPYG | 1 funds | $91.1M |
| Ishares Core S&P 500 ETFIVV | 1 funds | $89.7M |
| Ishares Russell 1000 GrowthIWF | 1 funds | $88.0M |
| SS SPDR S&P 500 ETF Trust-USSPY | 1 funds | $74.5M |
| Wisdomtree International HedIHDG | 1 funds | $73.4M |
| Columbia Resear Enh Cor ETFRECS | 1 funds | $72.8M |
| Fidelity Div ETF Rise RatesFDRR | 1 funds | $70.9M |
| Fidelity Total Bond ETFFBND | 1 funds | $69.0M |
| Vanguard S&P 500 ETFVOO | 1 funds | $66.0M |
| Ishares Msci USA Momentum FaMTUM | 1 funds | $65.9M |
Ranked by how many of OARK's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in OARK.
No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.
Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.
Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive
| Source | Buying | Selling | Net |
|---|---|---|---|
13F funds Top 100 holders by value, passive included; the hero counts active managers only | 4 | 1 | – |
Insiders Form 4 open-market | 0 | 0 | $0 |
US House STOCK Act trades | 0 | 0 | $0 |
Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.
| Class | 13F holders | Value held |
|---|---|---|
| MSTYYIELDMAX MSTR OP | 65 funds | $21.1M |
| TSLYYIELDMAX TSLA OP | 46 funds | $59.9M |
| ULTYYIELDMAX ULTRA O | 37 funds | $39.0M |
| CONYYIELDMAX COIN OP | 25 funds | $5.6M |
| AMDYYIELDMAX AMD OPT | 15 funds | $34.2M |
| MRNYYIELDMAX MRNA OP | 12 funds | $29.5M |
| OARKthis pageYIELDMAX INNOVAT | 8 funds | $23.1M |
| YBITYIELDMAX BITCOIN | 8 funds | $422K |
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 OARK
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/OARK/capital-change-brief"
Use Arkolith's capital_change_brief for OARK. 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 OARK. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.