Among active 13F managers last quarter, 9 opened and 24 added, while 13 reduced; the largest holder to move was Topline Capital Management, LLC (−11%). No open-market insider trades in the last 180 days.
Funds lean in and no leg opposes.
141 tracked 13F filers disclose a position in CTKB as of the latest SEC 13F filings, a combined $307.6M 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 | BlackRock, Inc. | 9.6M | $42.4M | ▼−44% Reduced · −7.4M sh | Q2 2026 | |
| 2 | HHLR Advisors, LTD. | 6.7M | $29.5M | —Held | Q2 2026 | |
| 3 | Millennium Management LLC | 6.3M | $27.5M | ▲+32% Added · +1.5M sh | Q1 2026 | |
| 4 | Topline Capital Management, LLC | 6.3M | $27.8M | ▼−11% Reduced · −781K sh | Q2 2026 | |
| 5 | Boston Partners | 5.8M | $25.4M | ▲+16% Added · +794K sh | Q1 2026 | |
| 6 | Vanguard Capital Management LLC | 4.9M | $21.9M | ▲+3.7% Added · +177K sh | Q2 2026 | |
| 7 | Geode Capital Management, LLC | 3.1M | $13.6M | ▲+8.0% Added · +226K sh | Q2 2026 | |
| 8 | Dimensional Fund Advisors LP | 2.7M | $11.6M | ▲+0.6% Added · +16K sh | Q1 2026 | |
| 9 | State Street Corp | 2.6M | $11.4M | ▼−38% Reduced · −1.6M sh | Q2 2026 | |
| 10 | Goldman Sachs Group Inc | 2.3M | $10.2M | ▲+31% Added · +555K sh | Q1 2026 | |
| 11 | Morgan Stanley | 1.7M | $7.5M | ▲+1.1% Added · +18K sh | Q1 2026 | |
| 12 | Russell Investments Group, Ltd. | 1.4M | $5.9M | ▲+36% Added · +359K sh | Q1 2026 | |
| 13 | Vanguard Portfolio Management LLC | 1.1M | $5.1M | ▼−51% Reduced · −1.2M sh | Q2 2026 | |
| 14 | Charles Schwab Investment Management Inc | 1.1M | $4.8M | ▲+0.9% Added · +10K sh | Q1 2026 | |
| 15 | Bank Of America Corp | 1.0M | $4.4M | ▲+18% Added · +153K sh | Q1 2026 | |
| 16 | Northern Trust Corp | 1.0M | $4.4M | ▲+5.0% Added · +48K sh | Q1 2026 | |
| 17 | AQR Capital Management LLC | 912K | $4.0M | ▲+23% Added · +169K sh | Q1 2026 | |
| 18 | Tudor Investment Corp Et Al | 838K | $3.7M | ▲+161% Added · +517K sh | Q2 2026 | |
| 19 | Vanguard Fiduciary Trust Co | 741K | $3.3M | ▲+3.3% Added · +24K sh | Q2 2026 | |
| 20 | Citadel Advisors LLC | 721K | $3.2M | ▲+53% Added · +250K sh | Q2 2026 | |
| 21 | Renaissance Technologies LLC | 677K | $3.0M | ▲+0.3% Added · +2K sh | Q1 2026 | |
| 22 | Bank of New York Mellon Corp | 609K | $2.7M | ▼−4.6% Reduced · −29K sh | Q1 2026 | |
| 23 | Principal Financial Group Inc | 535K | $2.3M | ▼−20% Reduced · −132K sh | Q1 2026 | |
| 24 | FMR LLC | 504K | $2.2M | ▲+78% Added · +221K sh | Q2 2026 | |
| 25 | Point72 Asset Management, L.P. | 422K | $1.9M | ▲New +422K 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, 9 funds opened a new position in CTKB and 24 added to an existing one, while 13 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 |
|---|---|---|
| McKesson CorpMCK | 71 funds | $11.7B |
| Nvidia CorpNVDA | 70 funds | $247.0B |
| Microsoft CorpMSFT | 70 funds | $157.1B |
| Wells Fargo & CoWFC | 69 funds | $12.2B |
| Centene CorpCNC | 69 funds | $3.5B |
| Amazon.com IncAMZN | 68 funds | $122.1B |
| JPMorgan Chase & CoJPM | 68 funds | $40.8B |
| Intel CorpINTC | 68 funds | $16.7B |
| Broadcom IncAVGO | 67 funds | $103.9B |
| Meta Platforms Inc-Class AMETA | 67 funds | $65.3B |
| Eli Lilly & CoLLY | 67 funds | $51.1B |
| Visa Inc-Class A SharesV | 67 funds | $37.6B |
Ranked by how many of CTKB's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in CTKB.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 2, 2025 | McCombe William D. | Chief Financial Officer | Buy (P) | 35K | $97K |
| Apr 19, 2024 | Yan Ming | CHIEF TECHNOLOGY OFFICER, Director | Sell (S) | 20K | $117K |
| Apr 9, 2024 | Yan Ming | CHIEF TECHNOLOGY OFFICER, Director | Sell (S) 2 lots, same day | 2K | $13K |
| Mar 19, 2024 | Yan Ming | CHIEF TECHNOLOGY OFFICER, Director | Sell (S) | 20K | $134K |
| Mar 18, 2024 | Yan Ming | CHIEF TECHNOLOGY OFFICER, Director | Sell (S) | 20K | $135K |
| Dec 26, 2023 | Jeanmonod Patrik | Chief Financial Officer | Sell (S) | 3K | $29K |
| Dec 19, 2023 | Yan Ming | Chief Technology Officer, Director | Sell (S) | 20K | $189K |
| Nov 24, 2023 | Jeanmonod Patrik | Chief Financial Officer | Sell (S) | 3K | $21K |
| Nov 20, 2023 | Yan Ming | Chief Technology Officer, Director | Sell (S) | 20K | $121K |
| Nov 7, 2023 | Jiang Wenbin | President and CEO, Director | Sell (S) | 20K | $87K |
| Oct 24, 2023 | Jeanmonod Patrik | Chief Financial Officer | Sell (S) | 3K | $14K |
| Oct 19, 2023 | Yan Ming | Chief Technology Officer, Director | Sell (S) | 20K | $96K |
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 | 47 | 32 | – |
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.
Connected entities for CTKB
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/CTKB/capital-change-brief"
Use Arkolith's capital_change_brief for CTKB. 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 CTKB. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.