Among active 13F managers last quarter, 11 opened and 24 added, while 10 reduced; the largest holder to move was Renaissance Technologies LLC (−0.9%). Over the last 180 days, 3 insiders bought and none sold, a net +$1.7M in open-market trades.
Funds lean in and no leg opposes.
111 tracked 13F filers disclose a position in MED as of the latest SEC 13F filings, a combined $80.0M 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 | Renaissance Technologies LLC | 774K | $7.9M | ▼−0.9% Reduced · −7K sh | Q1 2026 | |
| 2 | Steamboat Capital Partners, LLC | 707K | $7.5M | ▼−0.1% Reduced · −891 sh | Q2 2026 | |
| 3 | Charles Schwab Investment Management Inc | 632K | $6.4M | ▼−19% Reduced · −145K sh | Q1 2026 | |
| 4 | Vanguard Capital Management LLC | 447K | $4.7M | ▲+0.5% Added · +2K sh | Q2 2026 | |
| 5 | BlackRock, Inc. | 370K | $3.9M | ▼−61% Reduced · −575K sh | Q2 2026 | |
| 6 | Dimensional Fund Advisors LP | 362K | $3.7M | ▲+11% Added · +36K sh | Q1 2026 | |
| 7 | Two Sigma Investments, LP | 338K | $3.4M | ▲+321% Added · +258K sh | Q1 2026 | |
| 8 | Morgan Stanley | 325K | $3.3M | ▼−2.9% Reduced · −10K sh | Q1 2026 | |
| 9 | American Century Companies Inc | 224K | $2.3M | ▲+3.0% Added · +6K sh | Q1 2026 | |
| 10 | Peapod Lane Capital LLC | 223K | $2.4M | ▲+1.6% Added · +4K sh | Q2 2026 | |
| 11 | Lido Advisors, LLC | 220K | $2.3M | ▲+20% Added · +37K sh | Q2 2026 | |
| 12 | Trexquant Investment LP | 213K | $2.3M | ▲+18% Added · +33K sh | Q2 2026 | |
| 13 | D. E. Shaw & Co., Inc. | 161K | $1.6M | ▼−27% Reduced · −59K sh | Q1 2026 | |
| 14 | Goldman Sachs Group Inc | 153K | $1.6M | ▼−15% Reduced · −28K sh | Q1 2026 | |
| 15 | Commons Capital, LLC | 150K | $1.6M | ▲+295% Added · +112K sh | Q2 2026 | |
| 16 | AQR Capital Management LLC | 146K | $1.5M | ▲+11% Added · +14K sh | Q1 2026 | |
| 17 | Quinn Opportunity Partners LLC | 127K | $1.3M | —Held | Q1 2026 | |
| 18 | Jane Street Group, LLC | 126K | $1.3M | ▲Added Added · +126K sh | Q1 2026 | |
| 19 | Geode Capital Management, LLC | 121K | $1.3M | ▼−52% Reduced · −132K sh | Q2 2026 | |
| 20 | Bridgeway Capital Management, LLC | 117K | $1.2M | ▼−25% Reduced · −40K sh | Q2 2026 | |
| 21 | Northern Trust Corp | 93K | $944K | ▲+5.6% Added · +5K sh | Q1 2026 | |
| 22 | Jump Financial, LLC | 91K | $926K | ▲New +91K sh | Q1 2026 | |
| 23 | Bank Of America Corp | 89K | $905K | ▼−8.9% Reduced · −9K sh | Q1 2026 | |
| 24 | JPMorgan Chase & Co | 87K | $871K | ▲+60% Added · +33K sh | Q1 2026 | |
| 25 | Divisadero Street Capital Management, LP | 80K | $847K | —Held | 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, 11 funds opened a new position in MED and 24 added to an existing one, while 10 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 |
|---|---|---|
| Nvidia CorpNVDA | 60 funds | $203.5B |
| Alphabet Inc-CL AGOOGL | 60 funds | $85.6B |
| Microsoft CorpMSFT | 59 funds | $120.2B |
| Amazon.com IncAMZN | 58 funds | $92.2B |
| Meta Platforms Inc-Class AMETA | 58 funds | $53.0B |
| Broadcom IncAVGO | 57 funds | $81.2B |
| Eli Lilly & CoLLY | 57 funds | $42.3B |
| Visa Inc-Class A SharesV | 57 funds | $30.7B |
| Uber Technologies IncUBER | 57 funds | $4.9B |
| Apple IncAAPL | 56 funds | $143.7B |
| Tesla IncTSLA | 56 funds | $35.8B |
| Micron Technology IncMU | 56 funds | $31.6B |
Ranked by how many of MED's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in MED.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 26, 2026 | Kiai Parsa | Director | Buy (P) 2 lots, same day | 43K | $529K |
| Aug 24, 2026 | Kiai Parsa | Director | Buy (P) 2 lots, same day | 4K | $52K |
| Aug 20, 2026 | Kiai Parsa | Director | Buy (P) 2 lots, same day | 43K | $501K |
| Aug 19, 2026 | Kiai Parsa | Director | Buy (P) 2 lots, same day | 29K | $342K |
| May 11, 2026 | Schlackman Scott | Director | Buy (P) | 3K | $31K |
| May 8, 2026 | Schlackman Scott | Director | Buy (P) | 3K | $32K |
| Mar 20, 2026 | Chard Daniel R | Chairman & CEO, Director | Buy (P) | 18K | $179K |
| Jun 13, 2025 | Chard Daniel R | Chairman & CEO, Director | Buy (P) | 381 | $5K |
| Mar 8, 2024 | Schlackman Scott | Director | Sell (S) 2 lots, same day | 4K | $160K |
| Nov 7, 2023 | Schlackman Scott | Director | Buy (P) | 53 | $4K |
| Nov 7, 2023 | Brown Jeffrey J | Director | Buy (P) | 58 | $4K |
| Nov 7, 2023 | Hoer Michael A. | Director | Buy (P) | 50 | $3K |
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 | 39 | 31 | – |
Insiders Form 4 open-market | 3 | 0 | +$1.7M |
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 MED
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/MED/capital-change-brief"
Use Arkolith's capital_change_brief for MED. 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 MED. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.