Among active 13F managers last quarter, 6 opened and 20 added, while 23 reduced; the largest holder to move was ARK Investment Management LLC (−6.4%). Over the last 180 days, 5 insiders sold and none bought, a net -$891K in open-market trades.
The legs disagree, or only one of them leans.
167 tracked 13F filers disclose a position in CERS as of the latest SEC 13F filings, a combined $359.7M 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 | BlackRock, Inc. | 22.2M | $64.9M | ▲+3.0% Added · +640K sh | Q2 2026 | |
| 2 | ARK Investment Management LLC | 17.9M | $52.4M | ▼−6.4% Reduced · −1.2M sh | Q2 2026 | |
| 3 | Vanguard Capital Management LLC | 8.6M | $25.0M | ▲+5.3% Added · +432K sh | Q2 2026 | |
| 4 | Baker Bros. Advisors LP | 6.4M | $18.7M | ▼−36% Reduced · −3.6M sh | Q2 2026 | |
| 5 | Geode Capital Management, LLC | 5.1M | $15.0M | ▲+10% Added · +482K sh | Q2 2026 | |
| 6 | State Street Corp | 4.8M | $13.9M | ▲+13% Added · +539K sh | Q2 2026 | |
| 7 | Senvest Management, LLC | 4.6M | $13.5M | ▲+12% Added · +500K sh | Q2 2026 | |
| 8 | Sumitomo Mitsui Trust Group, Inc. | 4.5M | $8.2M | ▼−4.1% Reduced · −193K sh | Q1 2026 | |
| 9 | Amova Asset Management Americas, Inc. | 4.5M | $8.2M | ▼−4.1% Reduced · −193K sh | Q1 2026 | |
| 10 | Silvercrest Asset Management Group LLC | 4.2M | $7.7M | ▼−9.5% Reduced · −444K sh | Q1 2026 | |
| 11 | D. E. Shaw & Co., Inc. | 3.7M | $6.8M | ▼−3.7% Reduced · −142K sh | Q1 2026 | |
| 12 | Silverarc Capital Management, LLC | 3.5M | $10.1M | ▲+9.3% Added · +296K sh | Q2 2026 | |
| 13 | Wasatch Advisors LP | 3.4M | $9.9M | ▼−36% Reduced · −1.9M sh | Q2 2026 | |
| 14 | Vanguard Portfolio Management LLC | 2.8M | $8.1M | ▲+44% Added · +850K sh | Q2 2026 | |
| 15 | Goldman Sachs Group Inc | 2.8M | $5.0M | ▲+15% Added · +361K sh | Q1 2026 | |
| 16 | Two Sigma Investments, LP | 2.7M | $5.0M | ▲+48% Added · +888K sh | Q1 2026 | |
| 17 | Soleus Capital Management, L.P. | 2.5M | $7.3M | ▼−77% Reduced · −8.3M sh | Q2 2026 | |
| 18 | IEQ Capital, LLC | 2.4M | $7.0M | ▼−1.5% Reduced · −37K sh | Q2 2026 | |
| 19 | AQR Capital Management LLC | 2.1M | $3.8M | ▲+5.5% Added · +110K sh | Q1 2026 | |
| 20 | UBS Group AG | 2.1M | $3.8M | ▲+84% Added · +957K sh | Q1 2026 | |
| 21 | Charles Schwab Investment Management Inc | 1.6M | $3.0M | ▼−2.2% Reduced · −37K sh | Q1 2026 | |
| 22 | Algert Global LLC | 1.5M | $4.4M | ▲13× Added · +1.4M sh | Q2 2026 | |
| 23 | Northern Trust Corp | 1.5M | $2.7M | ▲+2.6% Added · +38K sh | Q1 2026 | |
| 24 | Vanguard Fiduciary Trust Co | 1.4M | $4.2M | ▲+9.4% Added · +123K sh | Q2 2026 | |
| 25 | FMR LLC | 1.4M | $4.1M | ▲+17% Added · +207K 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, 6 funds opened a new position in CERS and 20 added to an existing one, while 23 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 | 81 funds | $234.8B |
| Microsoft CorpMSFT | 81 funds | $146.5B |
| Amazon.com IncAMZN | 79 funds | $113.8B |
| Alphabet Inc-CL AGOOGL | 79 funds | $105.1B |
| Broadcom IncAVGO | 79 funds | $97.1B |
| Meta Platforms Inc-Class AMETA | 79 funds | $62.6B |
| JPMorgan Chase & CoJPM | 77 funds | $38.7B |
| Tesla IncTSLA | 76 funds | $43.6B |
| Alphabet Inc-CL CGOOG | 75 funds | $79.5B |
| Chevron CorpCVX | 75 funds | $16.4B |
| Apple IncAAPL | 74 funds | $167.4B |
| Eli Lilly & CoLLY | 73 funds | $58.6B |
Ranked by how many of CERS's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in CERS.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 17, 2026 | Jensen Chrystal | Chief Legal Officer | Sell (S) | 30K | $90K |
| Jul 16, 2026 | Jayaraman Vivek K | Chief Executive Officer | Sell (S) | 17K | $53K |
| Jun 30, 2026 | Jayaraman Vivek K | Chief Operating Officer | Sell (S) | 42K | $125K |
| Jun 30, 2026 | Jensen Chrystal | Chief Legal Officer | Sell (S) | 24K | $72K |
| Jun 30, 2026 | Greenman William Mariner | President and CEO, Director | Sell (S) | 102K | $300K |
| Jun 30, 2026 | Green Kevin Dennis | Chief Financial Officer | Sell (S) | 34K | $99K |
| Jun 9, 2026 | Bjerkholt Eric | Director | Sell (S) | 20K | $53K |
| May 29, 2026 | Jayaraman Vivek K | Chief Operating Officer | Sell (S) | 17K | $50K |
| May 1, 2026 | Jayaraman Vivek K | Chief Operating Officer | Sell (S) | 17K | $50K |
| Mar 12, 2026 | Benjamin Richard J | Chief Medical Officer | Sell (S) | 102K | $169K |
| Mar 12, 2026 | Greenman William Mariner | President and CEO, Director | Sell (S) | 448K | $743K |
| Mar 12, 2026 | Green Kevin Dennis | Chief Financial Officer | Sell (S) | 128K | $212K |
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 | 38 | – |
Insiders Form 4 open-market | 0 | 5 | -$891K |
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 CERS
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/CERS/capital-change-brief"
Use Arkolith's capital_change_brief for CERS. 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 CERS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.