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/MEC/capital-change-brief"
Use Arkolith's capital_change_brief for MEC. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Allspring Global Investments Holdings, LLC | $35.8M | 2.0M | ▼−2.5% Reduced · −52K sh | Q1 2026 | |
| 2 | DIMENSIONAL FUND ADVISORS LP | $16.6M | 926K | ▲+5.6% Added · +49K sh | Q1 2026 | |
| 3 | BlackRock, Inc. | $15.8M | 882K | ▲+1.9% Added · +16K sh | Q1 2026 | |
| 4 | Portolan Capital Management, LLC | $14.7M | 821K | ▲+60% Added · +308K sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $10.7M | 595K | ▲New +595K sh | Q1 2026 | |
| 6 | BLAIR WILLIAM & CO/IL | $10.1M | 565K | ▼−3.2% Reduced · −18K sh | Q1 2026 | |
| 7 | First Eagle Investment Management, LLC | $7.3M | 404K | ▲+13% Added · +46K sh | Q1 2026 | |
| 8 | Granahan Investment Management, LLC | $7.0M | 387K | ▲+45% Added · +120K sh | Q1 2026 | |
| 9 | MILLENNIUM MANAGEMENT LLC | $6.8M | 381K | ▲+149% Added · +228K sh | Q1 2026 | |
| 10 | AMERIPRISE FINANCIAL INC | $6.3M | 352K | ▲+0.3% Added · +946 sh | Q1 2026 | |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | $6.0M | 336K | ▲+2.1% Added · +7K sh | Q1 2026 | |
| 12 | STATE STREET CORP | $5.1M | 286K | ▲+0.3% Added · +850 sh | Q1 2026 | |
| 13 | SILVERCREST ASSET MANAGEMENT GROUP LLC | $4.8M | 270K | ▲+50% Added · +90K sh | Q1 2026 | |
| 14 | Boston Partners | $4.2M | 233K | ▲+4.4% Added · +10K sh | Q1 2026 | |
| 15 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $4.0M | 223K | ▼−1.9% Reduced · −4K sh | Q1 2026 | |
| 16 | AMERICAN CENTURY COMPANIES INC | $4.0M | 222K | ▼−21% Reduced · −59K sh | Q1 2026 | |
| 17 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $3.3M | 185K | ▼−36% Reduced · −103K sh | Q1 2026 | |
| 18 | BANK OF AMERICA CORP /DE/ | $3.3M | 184K | ▼−16% Reduced · −35K sh | Q1 2026 | |
| 19 | Wealthspire Advisors, LLC | $2.5M | 142K | ▲+48% Added · +46K sh | Q1 2026 | |
| 20 | Panoramic Capital, LLC | $2.5M | 140K | ▲New +140K sh | Q1 2026 | |
| 21 | Russell Investments Group, Ltd. | $2.5M | 138K | ▼−27% Reduced · −52K sh | Q1 2026 | |
| 22 | Empowered Funds, LLC | $2.2M | 123K | ▲New +123K sh | Q1 2026 | |
| 23 | SEI INVESTMENTS CO | $2.2M | 123K | ▲+47% Added · +39K sh | Q1 2026 | |
| 24 | CenterBook Partners LP | $2.2M | 120K | ▼−53% Reduced · −135K sh | Q1 2026 | |
| 25 | UBS Group AG | $2.1M | 117K | ▼−20% Reduced · −30K 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 11, 2026 | Reddy Jagadeesh A | President & CEO, Director | Sell (S) | 16K | $550K |
| Jun 8, 2026 | Reddy Jagadeesh A | President & CEO, Director | Sell (S) | 1K | $46K |
| Jun 1, 2026 | Reddy Jagadeesh A | President & CEO, Director | Sell (S) | 18K | $538K |
| Jun 1, 2026 | Reddy Jagadeesh A | President & CEO, Director | Sell (S) | 17K | $519K |
| May 26, 2026 | Raber Ryan F | EVP - Strategy, Sales & Mktg | Sell (S) | 20K | $520K |
| May 21, 2026 | Nichols Craig D | SVP, Operations & Supply Chain | Sell (S) | 4K | $93K |
| May 8, 2026 | Leuba Sean P | SVP, GC & Secretary | Gift (G) | 1K | $0 |
| May 7, 2026 | Reddy Jagadeesh A | President & CEO, Director | Sell (S) | 11K | $299K |
| May 7, 2026 | Reddy Jagadeesh A | President & CEO, Director | Sell (S) | 10K | $266K |
| Apr 21, 2026 | Wingfield Tania | Director | Grant (A) | 6K | $0 |
| Apr 21, 2026 | Wingfield Tania | Director | Option exercise (M) | 6K | $0 |
| Apr 21, 2026 | Wingfield Tania | Director | Option exercise (M) | 6K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 33 funds | $14.2B |
| META PLATFORMS INC-CLASS AMETA | 33 funds | $7.7B |
| APPLE INCAAPL | 32 funds | $16.2B |
| ALPHABET INC-CL AGOOGL | 32 funds | $8.9B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 32 funds | $3.7B |
| PEPSICO INCPEP | 32 funds | $1.1B |
| AMAZON.COM INCAMZN | 31 funds | $10.7B |
| ALPHABET INC-CL CGOOG | 31 funds | $9.6B |
| JPMORGAN CHASE & COJPM | 31 funds | $5.0B |
| ELI LILLY & COLLY | 31 funds | $3.3B |
| HOME DEPOT INCHD | 31 funds | $2.5B |
| SALESFORCE INCCRM | 31 funds | $2.3B |
Ranked by how many of MEC's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MEC. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.