Among active 13F managers last quarter, 5 opened and 40 added, while 9 reduced; the largest holder to move was Fuller & Thaler Asset Management, Inc. (+30%). Over the last 180 days, 1 insider sold and none bought, a net -$54K in open-market trades.
The legs disagree, or only one of them leans.
309 tracked 13F filers disclose a position in MMS as of the latest SEC 13F filings, a combined $2.8B 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. | 7.4M | $400.2M | ▼−1.0% Reduced · −76K sh | Q2 2026 | |
| 2 | FMR LLC | 5.5M | $298.1M | ▼−32% Reduced · −2.6M sh | Q2 2026 | |
| 3 | Vanguard Portfolio Management LLC | 3.4M | $182.2M | ▼−2.4% Reduced · −83K sh | Q2 2026 | |
| 4 | Fuller & Thaler Asset Management, Inc. | 2.7M | $145.3M | ▲+30% Added · +621K sh | Q2 2026 | |
| 5 | State Street Corp | 2.6M | $137.9M | ▲+4.3% Added · +107K sh | Q2 2026 | |
| 6 | Vanguard Capital Management LLC | 2.4M | $127.2M | ▼−2.9% Reduced · −71K sh | Q2 2026 | |
| 7 | Dimensional Fund Advisors LP | 2.1M | $135.1M | ▲+7.2% Added · +141K sh | Q1 2026 | |
| 8 | Geode Capital Management, LLC | 1.6M | $84.8M | ▲+5.3% Added · +79K sh | Q2 2026 | |
| 9 | Allianz Asset Management GmbH | 895K | $57.4M | ▲+47% Added · +287K sh | Q1 2026 | |
| 10 | Reinhart Partners, LLC. | 855K | $54.8M | ▲+18% Added · +130K sh | Q1 2026 | |
| 11 | Stephens Investment Management Group LLC | 855K | $46.0M | ▲+19% Added · +138K sh | Q2 2026 | |
| 12 | River Road Asset Management, LLC | 826K | $53.0M | ▲+0.3% Added · +3K sh | Q1 2026 | |
| 13 | Charles Schwab Investment Management Inc | 717K | $46.0M | ▼−2.4% Reduced · −18K sh | Q1 2026 | |
| 14 | Norges Bank | 700K | $60.4M | ▲+2.6% Added · +17K sh | Q4 2025 | |
| 15 | Northern Trust Corp | 693K | $44.4M | ▼−0.8% Reduced · −6K sh | Q1 2026 | |
| 16 | Boston Partners | 669K | $42.7M | ▼−24% Reduced · −211K sh | Q1 2026 | |
| 17 | Citadel Advisors LLC | 618K | $33.2M | ▲+517% Added · +518K sh | Q2 2026 | |
| 18 | UBS Group AG | 615K | $39.4M | ▲+0.8% Added · +5K sh | Q1 2026 | |
| 19 | Federated Hermes, Inc. | 610K | $39.1M | ▲+3.2% Added · +19K sh | Q1 2026 | |
| 20 | Bank Of America Corp | 563K | $36.1M | ▼−20% Reduced · −137K sh | Q1 2026 | |
| 21 | Bank of New York Mellon Corp | 519K | $33.2M | ▲+0.2% Added · +1K sh | Q1 2026 | |
| 22 | Goldman Sachs Group Inc | 481K | $30.8M | ▼−18% Reduced · −103K sh | Q1 2026 | |
| 23 | Qube Research & Technologies Ltd | 398K | $25.5M | ▲+15% Added · +52K sh | Q1 2026 | |
| 24 | Walleye Capital LLC | 384K | $20.6M | ▼−10% Reduced · −45K sh | Q2 2026 | |
| 25 | Vanguard Fiduciary Trust Co | 355K | $19.1M | ▼−6.6% Reduced · −25K 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, 5 funds opened a new position in MMS and 40 added to an existing one, while 9 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 | 172 funds | $229.4B |
| Amazon.com IncAMZN | 171 funds | $179.9B |
| Nvidia CorpNVDA | 167 funds | $357.3B |
| Meta Platforms Inc-Class AMETA | 165 funds | $95.8B |
| Apple IncAAPL | 164 funds | $261.6B |
| Alphabet Inc-CL AGOOGL | 164 funds | $156.7B |
| Eli Lilly & CoLLY | 163 funds | $74.6B |
| JPMorgan Chase & CoJPM | 159 funds | $56.2B |
| Lam Research CorpLRCX | 159 funds | $42.1B |
| Bank Of America CorpBAC | 158 funds | $30.3B |
| Costco Wholesale CorpCOST | 157 funds | $32.3B |
| Qualcomm IncQCOM | 157 funds | $13.6B |
Ranked by how many of MMS's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in MMS.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Mar 17, 2026 | Madsen Jan | Director | Sell (S) | 742 | $54K |
| Feb 10, 2026 | Caswell Bruce | CEO & President, Director | Buy (P) 3 lots, same day | 3K | $249K |
| Feb 9, 2026 | Mutryn David | Chief Financial Officer | Buy (P) | 1K | $76K |
| Dec 3, 2025 | Link Michelle F. | Chief of Human Resources | Sell (S) | 4K | $351K |
| Nov 28, 2025 | Warren Michael J. | Director | Buy (P) | 14 | $1K |
| Nov 28, 2025 | Rajan Gayathri | Director | Buy (P) | 42 | $4K |
| Oct 1, 2025 | Link Michelle F. | Chief of Human Resources | Sell (S) | 2K | $146K |
| Aug 29, 2025 | Warren Michael J. | Director | Buy (P) | 14 | $1K |
| Aug 29, 2025 | Rajan Gayathri | Director | Buy (P) | 41 | $4K |
| Jun 16, 2025 | Ruddy Raymond B | Director | Buy (P) | 1K | $100K |
| May 30, 2025 | Rajan Gayathri | Director | Sell (S) | 8K | $573K |
| May 30, 2025 | Rajan Gayathri | Director | Buy (P) | 83 | $6K |
One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.
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 | 61 | 30 | – |
Insiders Form 4 open-market | 0 | 1 | -$54K |
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 MMS
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/MMS/capital-change-brief"
Use Arkolith's capital_change_brief for MMS. 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 MMS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.