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Major group 38: Measuring, analyzing, and controlling instruments; photographic, medical and optical goods; watches and clocks
Part of 384 Surgical, medical, and dental instruments and supplies
Companies with SIC industry code 3845. Companies with no code (SIC 0) and shell companies (SIC 9995) are left out.
The tiles, heatmap and tables below use the industry’s S&P 500 companies.
Average profit weight in the industry over time
The mean profit weight over every ordered pair of the industry’s companies, each quarter: S&P 500 companies (solid) and all companies (faded). Click a quarter to show it.
Computed from the current data release, using every firm in the sample. Published papers used earlier releases and samples, so their figures differ slightly.
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Profit weights between the 5 largest companies, 2020 Q4
Each cell is the profit weight of the row company’s shareholders on the column company (darker: higher). Companies are ordered so that tightly linked groups form blocks. Largest means most reported owners. Click a cell to compare the two companies.
| Intuitive Surgical Inc | Dexcom Inc | Resmed Inc | Boston Scientific Corp | Varian Medical System… | Report | |
|---|---|---|---|---|---|---|
| Intuitive Surgical Inc | 0.89 | 0.75 | 0.70 | 0.64 | ||
| Dexcom Inc | 0.77 | 0.77 | 0.71 | 0.64 | ||
| Resmed Inc | 0.72 | 0.86 | 0.74 | 0.75 | ||
| Boston Scientific Corp | 0.72 | 0.84 | 0.78 | 0.71 | ||
| Varian Medical Systems Inc | 0.72 | 0.83 | 0.86 | 0.78 |
Investors who drive it, 2020 Q4
The investors that contribute most to the industry’s average profit weight: roughly, those holding sizeable stakes in many of its companies at once. Owner types follow the forms each investor files with the SEC: 13F, Forms 3/4/5, 13D or 13G, in that order of precedence (an investor that files both 13F and Forms 3/4/5, such as Carl Icahn, counts as a 13F filer). Big Three is Vanguard, BlackRock and State Street.
- Big Three
- 13F filers
- 13G filers
- 13D filers
- Forms 3/4/5 filers
The companies, 2020 Q4
| Company | Reported owners | Reported ownership | SEC CIK | Report |
|---|---|---|---|---|
| Intuitive Surgical Inc SIC 3845 · S&P 500 | 1102 | 87.23% | 1035267 | |
| Boston Scientific Corp SIC 3845 · S&P 500 | 835 | 88.97% | 885725 | |
| Dexcom Inc SIC 3845 · S&P 500 | 699 | 95.04% | 1093557 | |
| Resmed Inc SIC 3845 · S&P 500 | 644 | 71.02% | 943819 | |
| Varian Medical Systems Inc SIC 3845 · S&P 500 | 612 | 89.67% | 203527 |
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