Among active 13F managers last quarter, 1 opened and 2 added, while 4 reduced; the largest holder to move was Renaissance Technologies LLC (+2.7%). Over the last 180 days, 1 insider bought and none sold, a net +$4K in open-market trades.
The legs disagree, or only one of them leans.
21 tracked 13F filers disclose a position in BOSC as of the latest SEC 13F filings, a combined $4.4M 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 | Renaissance Technologies LLC | 243K | $1.1M | ▲+2.7% Added · +6K sh | Q1 2026 | |
| 2 | Evernest Financial Advisors, LLC | 199K | $894K | ▲+9.8% Added · +18K sh | Q2 2026 | |
| 3 | Militia Capital Partners, LP | 117K | $532K | ▼−34% Reduced · −61K sh | Q4 2025 | |
| 4 | Militia Capital Management LLC | 73K | $329K | ▼−37% Reduced · −43K sh | Q2 2026 | |
| 5 | Osaic Holdings, Inc. | 53K | $237K | ▲48× Added · +52K sh | Q1 2026 | |
| 6 | Goldman Sachs Group Inc | 44K | $197K | ▼−32% Reduced · −21K sh | Q1 2026 | |
| 7 | Two Sigma Investments, LP | 43K | $195K | ▼−9.5% Reduced · −5K sh | Q1 2026 | |
| 8 | NewEdge Advisors, LLC | 37K | $164K | —Held | Q2 2026 | |
| 9 | James Investment Research, Inc. | 37K | $164K | —Held | Q2 2026 | |
| 10 | Jane Street Group, LLC | 28K | $127K | ▲+3.1% Added · +863 sh | Q1 2026 | |
| 11 | XTX Topco Ltd | 25K | $113K | ▲+17% Added · +4K sh | Q1 2026 | |
| 12 | Dynamic Advisor Solutions LLC | 22K | $97K | —Held | Q2 2026 | |
| 13 | Susquehanna International Group, LLP | 14K | $65K | ▲New +14K sh | Q1 2026 | |
| 14 | Citadel Advisors LLC | 13K | $56K | ▼−69% Reduced · −29K sh | Q2 2026 | |
| 15 | Centiva Capital, LP | 12K | $52K | ▲+12% Added · +1K sh | Q2 2026 | |
| 16 | Bank Of America Corp | 11K | $51K | —Held | Q1 2026 | |
| 17 | Morgan Stanley | 2K | $7K | ▼−10% Reduced · −177 sh | Q1 2026 | |
| 18 | Jones Financial Companies LLLP | 853 | $4K | —Held | Q1 2026 | |
| 19 | SBI Securities Co., Ltd. | 93 | $418 | —Held | Q2 2026 | |
| 20 | UBS Group AG | 81 | $364 | ▼−99% Reduced · −8K sh | Q1 2026 | |
| 21 | Caitong International Asset Management Co., Ltd | 3 | $13 | ▲New +3 sh | 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 BOSC and 2 added to an existing one, while 4 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 |
|---|---|---|
| Nvidia CorpNVDA | 10 funds | $5.4B |
| Eli Lilly & CoLLY | 10 funds | $1.3B |
| Uber Technologies IncUBER | 10 funds | $244.7M |
| Amazon.com IncAMZN | 9 funds | $4.1B |
| Mastercard Inc - AMA | 9 funds | $1.7B |
| Berkshire Hathaway Inc-CL BBRK/B | 9 funds | $1.4B |
| Lockheed Martin CorpLMT | 9 funds | $1.3B |
| Lam Research CorpLRCX | 9 funds | $965.5M |
| Robinhood Markets Inc - AHOOD | 9 funds | $733.0M |
| Taiwan Semiconductor-SP ADRTSM | 9 funds | $727.2M |
| Visa Inc-Class A SharesV | 9 funds | $647.1M |
| Cheniere Energy IncLNG | 9 funds | $632.7M |
Ranked by how many of BOSC's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in BOSC.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 12, 2026 | Cohen Eyal | CEO, Director | Buy (P) | 1K | $4K |
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 | 6 | 7 | – |
Insiders Form 4 open-market | 1 | 0 | +$4K |
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 BOSC
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/BOSC/capital-change-brief"
Use Arkolith's capital_change_brief for BOSC. 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 BOSC. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.