373 tracked 13F filers disclose a position in MATX as of the latest SEC 13F filings, a combined $4.0B 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. | $821.8M | 5.0M | ▼−1.2% Reduced · −62K sh | Q1 2026 | |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $332.1M | 2.0M | →First observed position No prior filed position | Q1 2026 | |
| 3 | DIMENSIONAL FUND ADVISORS LP | $319.1M | 1.9M | ▼−1.8% Reduced · −36K sh | Q1 2026 | |
| 4 | AMERICAN CENTURY COMPANIES INC | $246.3M | 1.5M | ▲+14% Added · +182K sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $217.8M | 1.3M | →First observed position No prior filed position | Q1 2026 | |
| 6 | STATE STREET CORP | $232.3M | 1.2M | ▲~0% Added · +485 sh | Q2 2026 | |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $153.6M | 799K | ▲+3.0% Added · +24K sh | Q2 2026 | |
| 8 | FULLER & THALER ASSET MANAGEMENT, INC. | $124.6M | 648K | ▲+5.7% Added · +35K sh | Q2 2026 | |
| 9 | T. Rowe Price Investment Management, Inc. | Withheld | 528K | ▼−4.2% Reduced · −23K sh | Q1 2026 | |
| 10 | MORGAN STANLEY | $67.8M | 414K | ▼−3.9% Reduced · −17K sh | Q1 2026 | |
| 11 | NORTHERN TRUST CORP | $62.8M | 383K | ▲+0.6% Added · +2K sh | Q1 2026 | |
| 12 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $61.2M | 373K | ▼−0.4% Reduced · −1K sh | Q1 2026 | |
| 13 | FMR LLC | $53.2M | 324K | ▲+53% Added · +113K sh | Q1 2026 | |
| 14 | BALYASNY ASSET MANAGEMENT L.P. | $51.7M | 315K | ▲+53% Added · +109K sh | Q1 2026 | |
| 15 | Boston Partners | $47.8M | 291K | ▼−5.9% Reduced · −18K sh | Q1 2026 | |
| 16 | Bank of New York Mellon Corp | $43.3M | 264K | ▼−2.2% Reduced · −6K sh | Q1 2026 | |
| 17 | LONDON CO OF VIRGINIA | $40.0M | 244K | ▼−3.1% Reduced · −8K sh | Q1 2026 | |
| 18 | CAISSE DE DEPOT ET PLACEMENT DU QUEBEC | $39.9M | 243K | ▲+5.1% Added · +12K sh | Q1 2026 | |
| 19 | Schonfeld Strategic Advisors LLC | $40.7M | 212K | ▲+45% Added · +66K sh | Q2 2026 | |
| 20 | CITADEL ADVISORS LLC | $33.3M | 203K | ▼−15% Reduced · −37K sh | Q1 2026 | |
| 21 | BANK OF AMERICA CORP /DE/ | $32.9M | 201K | ▲+13% Added · +23K sh | Q1 2026 | |
| 22 | VANGUARD FIDUCIARY TRUST CO | $32.8M | 200K | →First observed position No prior filed position | Q1 2026 | |
| 23 | Encompass Capital Advisors LLC | $32.8M | 200K | ▲New +200K sh | Q1 2026 | |
| 24 | Qube Research & Technologies Ltd | $32.2M | 196K | ▲+43% Added · +59K sh | Q1 2026 | |
| 25 | GOLDMAN SACHS GROUP INC | $30.3M | 185K | ▼−3.9% Reduced · −7K 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, 5 funds opened a new position in MATX and 20 added to an existing one, while 26 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 | 207 funds | $224.3B |
| AMAZON.COM INCAMZN | 205 funds | $167.8B |
| NVIDIA CORPNVDA | 202 funds | $333.0B |
| ALPHABET INC-CL AGOOGL | 201 funds | $139.1B |
| ELI LILLY & COLLY | 200 funds | $66.0B |
| VISA INC-CLASS A SHARESV | 200 funds | $54.0B |
| APPLE INCAAPL | 199 funds | $246.4B |
| META PLATFORMS INC-CLASS AMETA | 199 funds | $99.7B |
| COSTCO WHOLESALE CORPCOST | 199 funds | $32.0B |
| BROADCOM INCAVGO | 198 funds | $131.3B |
| JPMORGAN CHASE & COJPM | 197 funds | $52.7B |
| ALPHABET INC-CL CGOOG | 194 funds | $104.3B |
Ranked by how many of MATX's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 28, 2026 | COX MATTHEW J | Chairman & CEO, Director | Sell (S) | 6K | $1.4M |
| Aug 28, 2026 | COX MATTHEW J | Chairman & CEO, Director | Sell (S) | 3K | $771K |
| Aug 28, 2026 | COX MATTHEW J | Chairman & CEO, Director | Sell (S) | 442 | $99K |
| Aug 24, 2026 | Angoco Vic S Jr | Executive Vice President | Sell (S) | 1K | $231K |
| Aug 24, 2026 | Angoco Vic S Jr | Executive Vice President | Sell (S) | 670 | $149K |
| Aug 24, 2026 | Angoco Vic S Jr | Executive Vice President | Sell (S) | 582 | $130K |
| Aug 19, 2026 | Scott Christopher A | EVP & Chief Commercial Officer | Sell (S) | 600 | $132K |
| Aug 19, 2026 | Heilmann Peter T | EVP, Chief Admin. Officer & GC | Sell (S) | 5K | $1.1M |
| Aug 13, 2026 | Taylor Jason Lee | Senior Vice President | Sell (S) | 2K | $426K |
| Aug 11, 2026 | Tungul Jennifer C. | Senior Vice President | Sell (S) | 402 | $84K |
| Aug 11, 2026 | Park Kuuhaku T | Senior Vice President | Sell (S) | 1K | $208K |
| Aug 11, 2026 | Isotoff Leonard P | Senior Vice President | Sell (S) | 1K | $260K |
Connected entities for MATX
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/MATX/capital-change-brief"
Use Arkolith's capital_change_brief for MATX. 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 MATX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.