826 tracked 13F filers disclose a position in MKL as of the latest SEC 13F filings, a combined $16.1B 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 | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $1.4B | 711K | ▼−0.1% Reduced · −685 sh | Q1 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $1.0B | 545K | →First observed position No prior filed position | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.0B | 524K | →First observed position No prior filed position | Q1 2026 | |
| 4 | PRINCIPAL FINANCIAL GROUP INC | $769.3M | 402K | ▼−25% Reduced · −131K sh | Q1 2026 | |
| 5 | MORGAN STANLEY | $683.5M | 357K | ▼−8.9% Reduced · −35K sh | Q1 2026 | |
| 6 | STATE STREET CORP | $609.7M | 312K | ▲+1.7% Added · +5K sh | Q2 2026 | |
| 7 | Boston Partners | $480.4M | 251K | ▼−4.3% Reduced · −11K sh | Q1 2026 | |
| 8 | VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. | $432.9M | 226K | ▲+10% Added · +21K sh | Q1 2026 | |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $418.2M | 215K | ▼−3.1% Reduced · −7K sh | Q2 2026 | |
| 10 | DAVENPORT & Co LLC | $403.2M | 206K | ▼−0.4% Reduced · −773 sh | Q2 2026 | |
| 11 | BAILLIE GIFFORD & CO | $335.1M | 175K | ▼−7.1% Reduced · −13K sh | Q1 2026 | |
| 12 | T. Rowe Price Investment Management, Inc. | Withheld | 155K | ▲+0.2% Added · +340 sh | Q1 2026 | |
| 13 | NORGES BANK | $317.6M | 148K | ▲+2.3% Added · +3K sh | Q4 2025 | |
| 14 | DIMENSIONAL FUND ADVISORS LP | $262.2M | 137K | ▲+4.9% Added · +6K sh | Q1 2026 | |
| 15 | BANK OF AMERICA CORP /DE/ | $260.5M | 136K | ▼−7.6% Reduced · −11K sh | Q1 2026 | |
| 16 | Bank Julius Baer & Co. Ltd, Zurich | $181.0M | 93K | ▼−4.9% Reduced · −5K sh | Q2 2026 | |
| 17 | Davis Asset Management, L.P. | $179.9M | 92K | ▲+30% Added · +21K sh | Q2 2026 | |
| 18 | Madison Avenue Partners, LP | $168.2M | 88K | —Held | Q1 2026 | |
| 19 | FENIMORE ASSET MANAGEMENT INC | $165.8M | 87K | ▼−1.9% Reduced · −2K sh | Q1 2026 | |
| 20 | NORTHERN TRUST CORP | $164.0M | 86K | ▲+1.2% Added · +1K sh | Q1 2026 | |
| 21 | Douglass Winthrop Advisors, LLC | $154.1M | 80K | ▼−1.8% Reduced · −1K sh | Q1 2026 | |
| 22 | FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ | $152.7M | 80K | ▲+0.1% Added · +87 sh | Q1 2026 | |
| 23 | Polar Capital Holdings Plc | $152.8M | 78K | ▼−2.2% Reduced · −2K sh | Q2 2026 | |
| 24 | VANGUARD FIDUCIARY TRUST CO | $149.3M | 78K | →First observed position No prior filed position | Q1 2026 | |
| 25 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME | $148.9M | 78K | ▲+0.2% Added · +135 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.
Last quarter, 1 fund opened a new position in MKL and 23 added to an existing one, while 27 reduced and 0 exited entirely — 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 | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 524 funds | $318.3B |
| APPLE INCAAPL | 511 funds | $359.6B |
| AMAZON.COM INCAMZN | 510 funds | $247.2B |
| ALPHABET INC-CL AGOOGL | 508 funds | $205.9B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 503 funds | $47.3B |
| ALPHABET INC-CL CGOOG | 498 funds | $151.9B |
| NVIDIA CORPNVDA | 495 funds | $465.7B |
| JPMORGAN CHASE & COJPM | 492 funds | $81.2B |
| META PLATFORMS INC-CLASS AMETA | 491 funds | $133.3B |
| VISA INC-CLASS A SHARESV | 477 funds | $74.8B |
| COSTCO WHOLESALE CORPCOST | 476 funds | $46.5B |
| ELI LILLY & COLLY | 469 funds | $95.0B |
Ranked by how many of MKL's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| May 22, 2026 | Harris Greta J | Director | Sell (S) | 35 | $65K |
| May 22, 2026 | Harris Greta J | Director | Sell (S) | 14 | $26K |
| May 22, 2026 | Harris Greta J | Director | Sell (S) | 27 | $50K |
| May 7, 2026 | Leopold Diane | Director | Buy (P) | 50 | $89K |
| May 6, 2026 | Leopold Diane | Director | Buy (P) | 100 | $179K |
| May 1, 2026 | Puckett A. Lynne | Director | Buy (P) | 57 | $102K |
| Feb 26, 2026 | Wilson Simon | EVP and CEO, Markel Insurance | Sell (S) | 100 | $208K |
| Dec 11, 2025 | MARKEL STEVEN A | Director | Sell (S) | 40 | $84K |
| Dec 11, 2025 | MARKEL STEVEN A | Director | Sell (S) | 120 | $254K |
| Dec 11, 2025 | MARKEL STEVEN A | Director | Sell (S) | 100 | $212K |
| Dec 11, 2025 | MARKEL STEVEN A | Director | Sell (S) | 201 | $426K |
| Dec 11, 2025 | MARKEL STEVEN A | Director | Sell (S) | 24 | $51K |
Connected entities for MKL
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/MKL/capital-change-brief"
Use Arkolith's capital_change_brief for MKL. 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 MKL. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.