Among active 13F managers last quarter, 8 opened and 23 added, while 27 reduced; the largest holder to move was Van Eck Associates Corp (+68%). Over the last 180 days, 5 insiders sold and none bought, a net -$3.1M in open-market trades.
The legs disagree, or only one of them leans.
232 tracked 13F filers disclose a position in DCO as of the latest SEC 13F filings, a combined $2.2B 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. | 1.9M | $359.4M | ▲+9.7% Added · +171K sh | Q2 2026 | |
| 2 | State Street Corp | 945K | $175.0M | ▲+20% Added · +160K sh | Q2 2026 | |
| 3 | FMR LLC | 776K | $143.8M | ▲+400% Added · +621K sh | Q2 2026 | |
| 4 | Paradigm Capital Management Inc | 771K | $142.7M | —Held | Q2 2026 | |
| 5 | Vanguard Capital Management LLC | 628K | $116.2M | ▲+2.4% Added · +15K sh | Q2 2026 | |
| 6 | Dimensional Fund Advisors LP | 512K | $62.5M | ▼−32% Reduced · −237K sh | Q1 2026 | |
| 7 | Gamco Investors, Inc. Et Al | 449K | $54.8M | ▼−13% Reduced · −68K sh | Q1 2026 | |
| 8 | Van Eck Associates Corp | 428K | $79.2M | ▲+68% Added · +174K sh | Q2 2026 | |
| 9 | Brown Advisory Inc | 349K | $42.6M | ▼−19% Reduced · −84K sh | Q1 2026 | |
| 10 | Geode Capital Management, LLC | 349K | $64.6M | ▲+4.2% Added · +14K sh | Q2 2026 | |
| 11 | Victory Capital Management Inc | 330K | $40.3M | ▲24× Added · +317K sh | Q1 2026 | |
| 12 | Deutsche Bank AG | 302K | $36.9M | ▲+34% Added · +77K sh | Q1 2026 | |
| 13 | Loomis Sayles & Co L P | 253K | $30.8M | ▼−7.7% Reduced · −21K sh | Q1 2026 | |
| 14 | Nuveen, LLC | 250K | $30.5M | ▲+333% Added · +192K sh | Q1 2026 | |
| 15 | Moore Capital Management, LP | 239K | $44.2M | ▲New +239K sh | Q2 2026 | |
| 16 | American Century Companies Inc | 226K | $27.5M | ▲+82% Added · +102K sh | Q1 2026 | |
| 17 | AllianceBernstein L.P. | 225K | $21.4M | ▼−23% Reduced · −66K sh | Q1 2026 | |
| 18 | Ameriprise Financial Inc | 217K | $26.5M | ▲46× Added · +213K sh | Q1 2026 | |
| 19 | Aberdeen Group plc | 204K | $24.9M | ▼−6.5% Reduced · −14K sh | Q1 2026 | |
| 20 | Kennedy Capital Management LLC | 186K | $22.7M | ▼−29% Reduced · −76K sh | Q1 2026 | |
| 21 | Charles Schwab Investment Management Inc | 184K | $22.4M | ▼−4.0% Reduced · −8K sh | Q1 2026 | |
| 22 | First Eagle Investment Management, LLC | 176K | $32.7M | ▲+15% Added · +23K sh | Q2 2026 | |
| 23 | Goldman Sachs Group Inc | 163K | $19.8M | ▲+72% Added · +68K sh | Q1 2026 | |
| 24 | Vanguard Portfolio Management LLC | 152K | $28.1M | ▲+16% Added · +21K sh | Q2 2026 | |
| 25 | Ophir Asset Management Pty Ltd | 140K | $25.9M | ▼−55% Reduced · −173K 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. 2 value rows are withheld because the reported units disagree with same-security peers; share counts are unchanged.
Last quarter, 8 funds opened a new position in DCO and 23 added to an existing one, while 27 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 |
|---|---|---|
| Microsoft CorpMSFT | 115 funds | $193.7B |
| Nvidia CorpNVDA | 114 funds | $321.2B |
| Amazon.com IncAMZN | 112 funds | $149.4B |
| Meta Platforms Inc-Class AMETA | 112 funds | $86.3B |
| Alphabet Inc-CL AGOOGL | 111 funds | $134.7B |
| Eli Lilly & CoLLY | 111 funds | $61.4B |
| Apple IncAAPL | 109 funds | $214.0B |
| Broadcom IncAVGO | 109 funds | $127.3B |
| Visa Inc-Class A SharesV | 109 funds | $51.6B |
| JPMorgan Chase & CoJPM | 109 funds | $47.9B |
| Chevron CorpCVX | 109 funds | $21.0B |
| Cisco Systems IncCSCO | 108 funds | $25.0B |
Ranked by how many of DCO's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in DCO.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 18, 2026 | Oswald Stephen G | Chairman, President & CEO, Director | Sell (S) | 3K | $510K |
| Aug 12, 2026 | Oswald Stephen G | Chairman, President & CEO, Director | Sell (S) | 6K | $1.2M |
| May 28, 2026 | Gonzalez Laureen S. | V.P., CHRO | Sell (S) | 589 | $90K |
| May 20, 2026 | Tata Rajiv A. | V.P., G.C. & Corp. Secretary | Sell (S) | 2K | $234K |
| May 20, 2026 | Mookerji Suman B. | Sr. V.P., C.F.O. | Sell (S) | 2K | $220K |
| May 14, 2026 | Redondo Jerry L | S.V.P., Elec. & Struc. Systems | Sell (S) | 6K | $877K |
| Mar 10, 2026 | Baldridge Richard A | Director | Sell (S) | 10K | $1.4M |
| Mar 10, 2026 | Mookerji Suman B. | S.V.P., CFO | Sell (S) | 8K | $1.0M |
| Mar 4, 2026 | Mookerji Suman B. | Sr. V.P., C.F.O. | Sell (S) | 15K | $2.0M |
| Dec 10, 2025 | Redondo Jerry L | S.V.P., Elec. & Struc. Systems | Sell (S) | 2K | $186K |
| Nov 10, 2025 | Redondo Jerry L | S.V.P., Elec. & Struc. Systems | Sell (S) | 2K | $150K |
| Dec 5, 2024 | Ducommun Robert C | Director | Sell (S) | 1K | $70K |
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 | 46 | 40 | – |
Insiders Form 4 open-market | 0 | 5 | -$3.1M |
US House STOCK Act trades | 1 | 1 | +$8K |
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 DCO
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/DCO/capital-change-brief"
Use Arkolith's capital_change_brief for DCO. 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 DCO. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.