Among active 13F managers last quarter, 15 opened and 20 added, while 12 reduced; the largest holder to move was Next Century Growth Investors LLC (+15%). Over the last 180 days, 1 insider bought and 3 insiders sold, a net +$3K in open-market trades.
Funds lean in and no leg opposes.
98 tracked 13F filers disclose a position in MPTI as of the latest SEC 13F filings, a combined $184.9M 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 | T. Rowe Price Investment Management, Inc. | 256K | Withheld | ▲New +256K sh | Q2 2026 | |
| 2 | BlackRock, Inc. | 253K | $25.1M | ▲+78% Added · +111K sh | Q2 2026 | |
| 3 | Vanguard Capital Management LLC | 173K | $17.2M | ▲+48% Added · +56K sh | Q2 2026 | |
| 4 | Gamco Investors, Inc. Et Al | 168K | $11.3M | ▼−3.4% Reduced · −6K sh | Q1 2026 | |
| 5 | Next Century Growth Investors LLC | 124K | $12.3M | ▲+15% Added · +16K sh | Q2 2026 | |
| 6 | Geode Capital Management, LLC | 101K | $10.0M | ▲+57% Added · +37K sh | Q2 2026 | |
| 7 | Renaissance Technologies LLC | 97K | $6.5M | ▲+60% Added · +36K sh | Q1 2026 | |
| 8 | State Street Corp | 82K | $8.2M | ▲+86% Added · +38K sh | Q2 2026 | |
| 9 | Palisades Investment Partners, LLC | 82K | $8.2M | ▲+1.6% Added · +1K sh | Q2 2026 | |
| 10 | Congruence Capital, LLC | 67K | $6.6M | ▲+58% Added · +24K sh | Q2 2026 | |
| 11 | Two Sigma Investments, LP | 62K | $4.2M | ▲+190% Added · +41K sh | Q1 2026 | |
| 12 | Herald Investment Management Ltd | 59K | $5.8M | ▲+6.4% Added · +4K sh | Q2 2026 | |
| 13 | Grandeur Peak Global Advisors, LLC | 57K | $5.6M | ▲+11% Added · +6K sh | Q2 2026 | |
| 14 | Marshall Wace, LLP | 52K | $3.4M | ▲+231% Added · +36K sh | Q1 2026 | |
| 15 | Dimensional Fund Advisors LP | 45K | $3.0M | ▲+6.0% Added · +3K sh | Q1 2026 | |
| 16 | Bard Associates Inc | 45K | $4.4M | ▼−48% Reduced · −41K sh | Q2 2026 | |
| 17 | Aristides Capital LLC | 41K | $4.1M | ▼−37% Reduced · −24K sh | Q2 2026 | |
| 18 | Potrero Capital Research LLC | 38K | $3.8M | ▲+20% Added · +6K sh | Q2 2026 | |
| 19 | New York State Common Retirement Fund | 32K | $2.1M | —Held | Q1 2026 | |
| 20 | Vanguard Portfolio Management LLC | 31K | $3.1M | ▲+56% Added · +11K sh | Q2 2026 | |
| 21 | Northern Trust Corp | 28K | $1.9M | ▲+11% Added · +3K sh | Q1 2026 | |
| 22 | Vanguard Fiduciary Trust Co | 27K | $2.7M | ▲+26% Added · +6K sh | Q2 2026 | |
| 23 | McIntyre Freedman & Flynn Investment Advisers Inc | 26K | $2.6M | ▲+20% Added · +4K sh | Q2 2026 | |
| 24 | Verition Fund Management LLC | 25K | $2.5M | ▲New +25K sh | Q2 2026 | |
| 25 | Illumine Investment Management, LLC | 24K | $1.6M | ▼−2.2% Reduced · −535 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. 1 value row is withheld because the reported units disagree with same-security peers; share counts are unchanged.
Last quarter, 15 funds opened a new position in MPTI and 20 added to an existing one, while 12 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 | 45 funds | $72.9B |
| Advanced Micro DevicesAMD | 45 funds | $26.9B |
| Amazon.com IncAMZN | 44 funds | $58.7B |
| Alphabet Inc-CL AGOOGL | 43 funds | $62.2B |
| Apple IncAAPL | 42 funds | $95.1B |
| Meta Platforms Inc-Class AMETA | 42 funds | $34.6B |
| Visa Inc-Class A SharesV | 42 funds | $18.2B |
| Arista Networks IncANET | 42 funds | $8.2B |
| Nvidia CorpNVDA | 41 funds | $138.4B |
| Eli Lilly & CoLLY | 40 funds | $28.9B |
| Costco Wholesale CorpCOST | 40 funds | $11.5B |
| Broadcom IncAVGO | 39 funds | $57.2B |
Ranked by how many of MPTI's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in MPTI.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 11, 2026 | Biles Linda M | Executive VP - Finance | Buy (S) | 1K | $104K |
| May 4, 2026 | Biles Linda M | Executive VP - Finance | Sell (S) | 306 | $20K |
| May 4, 2026 | Pforr Cameron | CEO and CFO | Sell (S) | 840 | $56K |
| May 4, 2026 | Drafts William Arnold | President | Sell (S) | 361 | $24K |
| Jun 27, 2025 | Drafts William Arnold | President | Buy (P) | 1K | $41K |
| Nov 14, 2024 | Gabelli Mario J | 10% Owner | Sell (S) | 8K | $451K |
| Nov 13, 2024 | Gabelli Mario J | 10% Owner | Sell (S) | 2K | $79K |
| Oct 14, 2024 | Arteaga Ivan | Director | Sell (S) | 2K | $81K |
| Oct 11, 2024 | Arteaga Ivan | Director | Sell (S) | 400 | $20K |
| Sep 30, 2024 | Gabelli Mario J | 10% Owner | Sell (S) | 171 | $7K |
| Sep 9, 2024 | Gabelli Mario J | 10% Owner | Sell (S) | 800 | $27K |
| Jun 25, 2024 | Gabelli Mario J | 10% Owner | Sell (S) | 200 | $7K |
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 | 41 | 24 | – |
Insiders Form 4 open-market | 1 | 3 | +$3K |
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.
| Class | 13F holders | Value held |
|---|---|---|
| MPTIthis pagecs | 98 funds | $184.9M |
| 55380K133rt | 22 funds | $1.1M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for MPTI
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/MPTI/capital-change-brief"
Use Arkolith's capital_change_brief for MPTI. 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 MPTI. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.