Among active 13F managers last quarter, 1 opened and none reduced or exited; the largest holder to move was Farther Finance Advisors, LLC (new position). No open-market insider trades in the last 180 days.
Funds lean in and no leg opposes.
2 tracked 13F filers disclose a position in BSLK as of the latest SEC 13F filings, a combined $15K 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 | Baillie Gifford & Co | 123K | $15K | —Held | Q1 2026 | |
| 2 | Farther Finance Advisors, LLC | 165 | $21 | ▲New +165 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 BSLK, 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 |
|---|---|---|
| Nvidia CorpNVDA | 8 funds | $84.7B |
| Microsoft CorpMSFT | 8 funds | $82.0B |
| Apple IncAAPL | 8 funds | $67.4B |
| Amazon.com IncAMZN | 8 funds | $46.5B |
| Alphabet Inc-CL AGOOGL | 8 funds | $36.4B |
| Meta Platforms Inc-Class AMETA | 8 funds | $34.6B |
| Visa Inc-Class A SharesV | 8 funds | $18.5B |
| Netflix IncNFLX | 8 funds | $18.3B |
| Tesla IncTSLA | 8 funds | $17.5B |
| Costco Wholesale CorpCOST | 8 funds | $13.7B |
| Walmart IncWMT | 8 funds | $13.7B |
| Home Depot IncHD | 8 funds | $11.8B |
Ranked by how many of BSLK's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in BSLK.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Nov 19, 2025 | Slattery Paul Joseph | GENERAL COUNSEL & SECRETARY | Sell (S) | 819 | $1K |
| Sep 3, 2025 | Breslauer David Nate | CHIEF TECHNOLOGY OFFICER, Director | Buy (P) | 11K | $35K |
| Sep 2, 2025 | Befumo Randy | INTERIM CFO | Buy (P) | 5K | $20K |
| Sep 2, 2025 | Widmaier Daniel Matthew | CHIEF EXECUTIVE OFFICER, Director | Buy (P) | 13K | $51K |
| Aug 13, 2025 | Golden Arrow Sponsor, LLC | 10% Owner | Sell (S) | 37K | $124K |
| Aug 12, 2025 | Golden Arrow Sponsor, LLC | 10% Owner | Sell (S) | 4K | $8K |
| Aug 11, 2025 | Golden Arrow Sponsor, LLC | 10% Owner | Sell (S) | 5K | $11K |
| Jul 17, 2025 | Golden Arrow Sponsor, LLC | 10% Owner | Sell (S) | 116K | $372K |
| Jul 8, 2025 | Golden Arrow Sponsor, LLC | 10% Owner | Sell (S) | 206K | $706K |
| Jun 3, 2025 | Breslauer David Nate | CHIEF TECHNOLOGY OFFICER, Director | Buy (P) | 300 | $975 |
| May 30, 2025 | Golden Arrow Sponsor, LLC | 10% Owner | Sell (S) | 50K | $155K |
| May 28, 2025 | Befumo Randy | INTERIM CFO | Buy (P) | 30K | $67K |
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 | 0 | 0 | – |
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 |
|---|---|---|
| BSLKthis pageStock | 2 funds | $15K |
| BSLKWWT | 2 funds | $2K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for BSLK
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/BSLK/capital-change-brief"
Use Arkolith's capital_change_brief for BSLK. 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 BSLK. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.