Ticker · CUSIP 58470H101
···Share
Holders (tracked)
7
Combined shares
1,798,382
Combined value
$18.96M
Last close
Quarter
2025Q4
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
7102024Q12025Q4

SEC event timeline

12 events
  1. −148,459 shares · 2025Q4
    13F
  2. −44,530 shares · 2025Q4
    13F
  3. +306,000 shares · 2025Q4
    13F
  4. +4,500 shares · 2025Q4
    13F
  5. −179,310 shares · 2025Q4
    13F
  6. −20,300 shares · 2025Q4
    13F
  7. +90,688 shares · 2025Q3
    13F
  8. −92,741 shares · 2025Q3
    13F
  9. +22,679 shares · 2025Q3
    13F
  10. −57,581 shares · 2025Q3
    13F
  11. +3,612 shares · 2025Q3
    13F
  12. −12,400 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions0
Added to2
Trimmed4
Exited0

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
14
$22.03B
2022Q2
14
$20.25B
2022Q3
15
$11.8M
2022Q4
17
$253.6M
2023Q1
18
$245.2M
2023Q2
17
$230.9M
2023Q3
14
$186.1M
2023Q4
11
$163.5M
2024Q1
10
$101.4M
2024Q2
13
$87.4M
2024Q3
12
$44.0M
2024Q4
14
$36.6M
2025Q1
12
$26.3M
2025Q2
9
$26.7M
2025Q3
8
$25.7M
2025Q4
7
$19.0M

Who owns MED

7 super-investors · 2025Q4
Tracked stake
1.80M
shares
Combined value
$19M
% of shares outstanding
shares-out unknown
Quarter action mix
Added3Trim4
#ManagerSharesValue
1Renaissance Technologies780.6K$8M
2Ken Griffin
Citadel Advisors
530.8K$6M
3D.E. Shaw & Co.219.1K$2M
4AQR Capital Management131.5K$1M
5Two Sigma Investments80.3K$858K
6Ken Griffin
Citadel Advisors
33.1K$354K
7T. Rowe Price22.9K$245

Recent moves

20 transactions
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