Who owns MMED
Which tracked institutional funds hold MMED, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MMED company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
Conviction spread
MMED’s largest tracked holder by dollar value, MASSACHUSETTS FINANCIAL SERVICES CO /MA/, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in MMED divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Only one quarter (2026-Q1) of 13F history is available — a quarter-over-quarter accumulation delta needs two.
We do not publish a positioning read for a window we cannot measure honestly. A starting question, not a verdict.
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ new | 6,878,460 | $103M | 18.5% | 2026-Q1 |
| Longaeva Partners L.P. new | 3,178,654 | $47M | 8.6% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 3,060,615 | $46M | 8.3% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 2,865,703 | $43M | 7.7% | 2026-Q2 |
| BlackRock, Inc. added | 1,996,489 | $30M | 5.4% | 2026-Q2 |
| Sessa Capital IM, L.P. new | 2,000,000 | $30M | 5.4% | 2026-Q1 |
| Alyeska Investment Group, L.P. new | 2,000,000 | $30M | 5.4% | 2026-Q1 |
| NORGES BANK new | 1,961,002 | $29M | 5.3% | 2026-Q2 |
| Hood River Capital Management LLC new | 1,505,778 | $22M | 4.1% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 1,437,067 | $21M | 3.9% | 2026-Q2 |
| FMR LLC trimmed | 1,080,689 | $16M | 2.9% | 2026-Q2 |
| Rock Springs Capital Management LP new | 1,055,000 | $16M | 2.8% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. new | 854,748 | $13M | 2.3% | 2026-Q1 |
| Boston Partners new | 845,003 | $12M | 2.3% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND new | 750,000 | $11M | 2.0% | 2026-Q1 |
| D. E. Shaw & Co., Inc. new | 450,000 | $7M | 1.2% | 2026-Q1 |
| STATE STREET CORP new | 403,289 | $6M | 1.1% | 2026-Q2 |
| Parkman Healthcare Partners LLC new | 317,324 | $5M | 0.9% | 2026-Q1 |
| READYSTATE ASSET MANAGEMENT LP new | 315,000 | $5M | 0.8% | 2026-Q1 |
| UBS Group AG new | 311,349 | $5M | 0.8% | 2026-Q1 |
| Sculptor Capital LP new | 306,005 | $5M | 0.8% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC new | 305,899 | $5M | 0.8% | 2026-Q1 |
| Burkehill Global Management, LP new | 300,000 | $4M | 0.8% | 2026-Q1 |
| BlueCrest Capital Management Ltd new | 275,000 | $4M | 0.7% | 2026-Q1 |
| JANE STREET GROUP, LLC new | 269,899 | $4M | 0.7% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 258,215 | $4M | 0.7% | 2026-Q2 |
| Ghisallo Capital Management LLC new | 250,000 | $4M | 0.7% | 2026-Q1 |
| Alberta Investment Management Corp new | 250,000 | $4M | 0.7% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC new | 245,931 | $4M | 0.7% | 2026-Q1 |
| SEVEN GRAND MANAGERS, LLC new | 200,000 | $3M | 0.5% | 2026-Q1 |
| Monashee Investment Management LLC new | 175,000 | $3M | 0.5% | 2026-Q1 |
| HRT FINANCIAL LP new | 165,054 | $2M | 0.4% | 2026-Q1 |
| FIRST TRUST ADVISORS LP new | 99,149 | $1M | 0.3% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC new | 88,300 | $1M | 0.2% | 2026-Q2 |
| SEI INVESTMENTS CO new | 79,968 | $1M | 0.2% | 2026-Q1 |
| BARCLAYS PLC new | 58,493 | $873K | 0.2% | 2026-Q1 |
| CHILTON INVESTMENT CO INC. new | 55,500 | $828K | 0.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ new | 50,063 | $747K | 0.1% | 2026-Q1 |
| MORGAN STANLEY new | 43,138 | $644K | 0.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 40,591 | $607K | 0.1% | 2026-Q2 |
| Magnetar Financial LLC new | 34,306 | $513K | 0.1% | 2026-Q2 |
| XTX Topco Ltd new | 31,467 | $469K | 0.1% | 2026-Q1 |
| Squarepoint Ops LLC new | 27,173 | $405K | 0.1% | 2026-Q1 |
| WASHINGTON GROWTH STRATEGIES LLC new | 26,587 | $397K | 0.1% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC trimmed | 25,735 | $385K | 0.1% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP new | 24,554 | $366K | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ new | 23,631 | $354K | 0.1% | 2026-Q2 |
| Game Creek Capital, LP new | 21,750 | $325K | 0.1% | 2026-Q1 |
| Hudson Bay Capital Management LP new | 19,210 | $287K | 0.1% | 2026-Q1 |
| AXQ CAPITAL, LP new | 19,165 | $286K | 0.1% | 2026-Q1 |
| Invesco Ltd. new | 18,690 | $279K | 0.1% | 2026-Q2 |
| LAZARD ASSET MANAGEMENT LLC new | 16,723 | $250K | 0.0% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. new | 16,723 | $250K | 0.0% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 15,395 | $230K | 0.0% | 2026-Q2 |
| Fiduciary Trust Co new | 14,625 | $218K | 0.0% | 2026-Q1 |
| Brevan Howard Capital Management LP new | 12,568 | $188K | 0.0% | 2026-Q2 |
| Parkside Financial Bank & Trust new | 1,887 | $28K | 0.0% | 2026-Q1 |
| CITIGROUP INC new | 1,573 | $23K | 0.0% | 2026-Q1 |
| GROUP ONE TRADING LLC new | 800 | $12K | 0.0% | 2026-Q1 |
| OSAIC HOLDINGS, INC. new | 100 | $1K | 0.0% | 2026-Q1 |
| MRP Capital Investments, LLC new | 90 | $1K | 0.0% | 2026-Q1 |
| SBI Securities Co., Ltd. new | 63 | $940 | 0.0% | 2026-Q1 |
| FIFTH THIRD BANCORP new | 60 | $900 | 0.0% | 2026-Q1 |
| Bruce G. Allen Investments, LLC new | 19 | $283 | 0.0% | 2026-Q1 |
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.