Among active 13F managers last quarter, 1 opened and 1 added, while 3 reduced; the largest holder to move was Citadel Advisors LLC (−15%). No recent Form 4 insider filings for BCTXL.
Funds lean out and no leg opposes.
9 tracked 13F filers disclose a position in BCTXL as of the latest SEC 13F filings, a combined $2.2M 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 | Citadel Advisors LLC | 896K | $717K | ▼−15% Reduced · −153K sh | Q2 2026 | |
| 2 | Armistice Capital, LLC | 537K | $553K | ▲New +537K sh | Q1 2026 | |
| 3 | Cable Car Capital, LP | 322K | $286K | —Held | Q2 2026 | |
| 4 | Sabby Management, LLC | 190K | $169K | ▼−50% Reduced · −190K sh | Q2 2026 | |
| 5 | Heights Capital Management, Inc | 187K | $149K | ▼−38% Reduced · −113K sh | Q2 2026 | |
| 6 | Warberg Asset Management LLC | 160K | $142K | ▲+39% Added · +45K sh | Q2 2026 | |
| 7 | Clear Street Group Inc. | 104K | $93K | —Held | Q2 2026 | |
| 8 | Iridian Asset Management LLC | 65K | $58K | —Held | Q2 2026 | |
| 9 | Susquehanna International Group, LLP | 24K | $24K | ▼−64% Reduced · −43K 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 BCTXL and 1 added to an existing one, while 3 reduced. 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 | 3 funds | $2.8B |
| Nvidia CorpNVDA | 3 funds | $2.7B |
| Microsoft CorpMSFT | 3 funds | $1.7B |
| Micron Technology IncMU | 3 funds | $1.1B |
| Meta Platforms Inc-Class AMETA | 3 funds | $694.4M |
| Taiwan Semiconductor-SP ADRTSM | 3 funds | $380.6M |
| Nike Inc -CL BNKE | 3 funds | $168.7M |
| American Airlines Group IncAAL | 3 funds | $131.1M |
| Lumentum Holdings IncLITE | 3 funds | $112.0M |
| Post Holdings IncPOST | 3 funds | $109.6M |
| Nektar TherapeuticsNKTR | 3 funds | $55.4M |
| Qxo IncQXO | 3 funds | $51.6M |
Ranked by how many of BCTXL's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in BCTXL.
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 | 1 | 4 | – |
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 |
|---|---|---|
| BCTXSTOCK | 15 funds | $1.2M |
| BCTXLthis page*W EXP 01/15/203 | 9 funds | $2.2M |
| BCTXZ*W EXP 99/99/999 | 4 funds | $45K |
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 BCTXL
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/BCTXL/capital-change-brief"
Use Arkolith's capital_change_brief for BCTXL. 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 BCTXL. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.