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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 3844. 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.
Show the numbers
Profit weights between the 1 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.
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
| # | Investor | Type | Companies held here | Share of the average | SEC CIK | Report |
|---|---|---|---|---|---|---|
| 1 | American International Group Inc | 13F filer | 1 | 5272 | ||
| 2 | Bank of Nova Scotia | 13F filer | 1 | 9631 | ||
| 3 | Bokf, NA | 13F filer | 1 | 9634 | ||
| 4 | Principal Financial Group Inc | 13F filer | 1 | 9712 | ||
| 5 | Brown Brothers Harriman & Co | 13F filer | 1 | 14661 | ||
| 6 | Chase Investment Counsel Corp | 13F filer | 1 | 19475 | ||
| 7 | JPMorgan Chase & Co | 13F filer | 1 | 19617 | ||
| 8 | Fiduciary Trust Co | 13F filer | 1 | 35442 | ||
| 9 | Fifth Third Bancorp | 13F filer | 1 | 35527 | ||
| 10 | M&T Bank Corp | 13F filer | 1 | 36270 | ||
| 11 | First Horizon National Corp | 13F filer | 1 | 36966 | ||
| 12 | Royce & Associates LP | 13F filer | 1 | 38777 | ||
| 13 | Cullen/Frost Bankers, Inc. | 13F filer | 1 | 39263 | ||
| 14 | Central Trust Co | 13F filer | 1 | 44365 | ||
| 15 | Bank of Montreal /CAN/ | 13F filer | 1 | 45729 | ||
| 16 | Huntington National Bank | 13F filer | 1 | 49205 | ||
| 17 | Cigna Investments Inc /New | 13F filer | 1 | 49969 | ||
| 18 | Investment Counselors of Maryland LLC | 13F filer | 1 | 51964 | ||
| 19 | Jennison Associates LLC | 13F filer | 1 | 53417 | ||
| 20 | Mackay Shields LLC | 13F filer | 1 | 61227 | ||
| 21 | Bank of America Corp /DE/ | 13F filer | 1 | 70858 | ||
| 22 | Wells Fargo & Company/Mn | 13F filer | 1 | 72971 | ||
| 23 | Northwestern Mutual Investment Management Company, LLC | 13F filer | 1 | 73076 | ||
| 24 | Northern Trust Corp | 13F filer | 1 | 73124 | ||
| 25 | US Bancorp \De\ | 13F filer | 1 | 78778 |
The companies, 2020 Q4
| Company | Reported owners | Reported ownership | SEC CIK | Report |
|---|---|---|---|---|
| Hologic Inc SIC 3844 · S&P 500 | 618 | 94.80% | 859737 |
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