Among active 13F managers last quarter, 1 opened and none reduced or exited; the largest holder to move was Citadel Advisors LLC (new position).
3 tracked 13F filers disclose a position in TARK as of the latest SEC 13F filings, a combined $1.2M 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 | Optiver Holding B.V. | 24K | $842K | ▲+567% Added · +20K sh | Q1 2026 | |
| 2 | Citadel Advisors LLC | 5K | $228K | ▲New +5K sh | Q2 2026 | |
| 3 | Simplex Trading, LLC | 3K | $101K | ▲New +3K sh | 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, 1 fund opened a new position in TARK, 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 |
|---|---|---|
| Ishares Core S&P 500 ETFIVV | 1 funds | $13.2B |
| Amazon.com IncAMZN | 1 funds | $2.6B |
| Nvidia CorpNVDA | 1 funds | $2.4B |
| Apple IncAAPL | 1 funds | $2.1B |
| Microsoft CorpMSFT | 1 funds | $1.4B |
| Electronic Arts IncEA | 1 funds | $1.2B |
| Warner Bros Discovery IncWBD | 1 funds | $1.2B |
| Eli Lilly & CoLLY | 1 funds | $1.1B |
| Broadcom IncAVGO | 1 funds | $1.1B |
| Alphabet Inc-CL AGOOGL | 1 funds | $1.1B |
| BlackRock IncBLK | 1 funds | $1.1B |
| Advanced Micro DevicesAMD | 1 funds | $929.1M |
Ranked by how many of TARK's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in TARK.
| Class | 13F holders | Value held |
|---|---|---|
| NXTEETF | 18 funds | $28.9M |
| SARKUIT EXCHANGE TRADED | 17 funds | $9.0M |
| KNOFUND | 12 funds | $14.2M |
| NVDSTradr 1.5x Short | 6 funds | $3.4M |
| WUGIETF | 6 funds | $1.9M |
| AAAETF | 6 funds | $1.0M |
| TARKthis pageTRADR 2X LONG IN | 3 funds | $1.2M |
| 46144X628EXCHANGE TRADED | 1 funds | $50 |
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 TARK
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/TARK/capital-change-brief"
Use Arkolith's capital_change_brief for TARK. 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 TARK. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.