Among active 13F managers last quarter, 3 opened and 1 added, while none reduced or exited; the largest holder to move was ADAR1 Capital Management, LLC (new position). Over the last 180 days, 1 insider bought and none sold, a net +$6K in open-market trades.
Funds lean in and no leg opposes.
18 tracked 13F filers disclose a position in QCLS as of the latest SEC 13F filings, a combined $2.7M 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 | Quinn Opportunity Partners LLC | 211K | $729K | —Held | Q1 2026 | |
| 2 | Jane Street Group, LLC | 126K | $435K | ▲+212% Added · +86K sh | Q1 2026 | |
| 3 | Vanguard Capital Management LLC | 115K | $449K | ▲+207% Added · +78K sh | Q2 2026 | |
| 4 | UBS Group AG | 78K | $269K | ▲+348% Added · +61K sh | Q1 2026 | |
| 5 | Geode Capital Management, LLC | 71K | $276K | ▲+49% Added · +23K sh | Q2 2026 | |
| 6 | ADAR1 Capital Management, LLC | 50K | $173K | ▲New +50K sh | Q1 2026 | |
| 7 | Vanguard Fiduciary Trust Co | 43K | $168K | ▲+177% Added · +27K sh | Q2 2026 | |
| 8 | State Street Corp | 25K | $99K | ▲+96% Added · +12K sh | Q2 2026 | |
| 9 | Dimensional Fund Advisors LP | 19K | $66K | —Held | Q1 2026 | |
| 10 | Peak6 LLC | 13K | $50K | ▲New +13K sh | Q2 2026 | |
| 11 | Tower Research Capital LLC (TRC) | 2K | $5K | ▲+578% Added · +1K sh | Q1 2026 | |
| 12 | BNP Paribas Financial Markets | 300 | $1K | ▼−75% Reduced · −900 sh | Q1 2026 | |
| 13 | SBI Securities Co., Ltd. | 100 | $390 | ▲New +100 sh | Q2 2026 | |
| 14 | BlackRock, Inc. | 19 | $74 | —Held | Q2 2026 | |
| 15 | Caitong International Asset Management Co., Ltd | 9 | $35 | ▲New +9 sh | Q2 2026 | |
| 16 | Royal Bank Of Canada | 6 | $0 | ▲+50% Added · +2 sh | Q1 2026 | |
| 17 | Jones Financial Companies LLLP | 2 | $7 | —Held | Q1 2026 | |
| 18 | Wilmington Savings Fund Society, FSB | 1 | $4 | —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, 3 funds opened a new position in QCLS 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 |
|---|---|---|
| Unitedhealth Group IncUNH | 6 funds | $22.9M |
| Micron Technology IncMU | 5 funds | $222.9M |
| Alphabet Inc-CL AGOOGL | 5 funds | $214.0M |
| Electronic Arts IncEA | 5 funds | $113.9M |
| Netflix IncNFLX | 5 funds | $111.3M |
| Advanced Micro DevicesAMD | 5 funds | $99.3M |
| Roivant Sciences LtdROIV | 5 funds | $92.4M |
| Intel CorpINTC | 5 funds | $81.4M |
| Eli Lilly & CoLLY | 5 funds | $79.4M |
| Immunovant IncIMVT | 5 funds | $67.9M |
| DuolingoDUOL | 5 funds | $49.8M |
| Arm Holdings PLC-ADRARM | 5 funds | $48.9M |
Ranked by how many of QCLS's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in QCLS.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Mar 30, 2026 | Voss Chelsea Sierra | Director | Buy (P) | 2K | $6K |
| Aug 24, 2023 | Rivard Paul | Chief Legal Officer | Buy (P) | 150K | $167K |
| Aug 17, 2023 | Rivard Paul | Chief Legal Officer | Buy (P) | 25K | $28K |
| Dec 8, 2022 | Rivard Paul | EVP of Operations, GC | Buy (P) | 10K | $15K |
| Nov 26, 2021 | Silverman Joshua | Director | Buy (P) | 5K | $38K |
| Nov 24, 2021 | Silverman Joshua | Director | Buy (P) 2 lots, same day | 10K | $66K |
| Nov 23, 2021 | Rivard Paul | EVP of Operations, GC | Buy (P) | 15K | $90K |
| Feb 28, 2020 | Gerber Sander | 10% Owner | Sell (S) | 638 | $2K |
| Feb 27, 2020 | Hudson Bay Capital Management LP | 10% Owner | Sell (S) | 15K | $42K |
| Feb 25, 2020 | Hudson Bay Capital Management LP | 10% Owner | Sell (S) | 13K | $38K |
| Dec 20, 2019 | Hudson Bay Capital Management LP | 10% Owner | Buy (P) | 8K | $24K |
| Dec 19, 2019 | Hudson Bay Capital Management LP | 10% Owner | Buy (P) | 3K | $8K |
One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.
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 | 8 | 1 | – |
Insiders Form 4 open-market | 1 | 0 | +$6K |
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.
Connected entities for QCLS
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/QCLS/capital-change-brief"
Use Arkolith's capital_change_brief for QCLS. 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 QCLS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.