Find Two Values In One Column?

I've got two question on how to 'find' some values in a specific data file, namely:

- the '52-Week High' of the share price (highest value of the share in that specific year)
- the value of the share price of the last trading day of that specific year (this isn't always 12/31/20..)

Simplified, my data looks as follows:

-In column 'A' I've a created a line of unique edentifiers (company CUSIP + year -> combined column D and E), in my set this column consists of 405 companies over 6 years of daily data -> aprox 460000 rows
-In column 'B' the date is shown -> its daily trading data
-In column 'C' the daily share price is shown
-In column 'D' the company's CUSIP (edentifier for specific company)
-In column 'E' the year

Sheet 1:
1.JPG

My final data set has to look something like this:
-In column 'A' the unique edentifiers (company CUSIP + year)
-In column 'B' the specific year
-In column 'C' the '52-Week High' of the share price (highest value of the share in that specific year) -> red numbers from sheet 1
-In column 'D' the value of the share price of the last trading day of that specific year (this isn't always 12/31/20..) -> green numbers from sheet 1
-> off course all the empty cells in column C and D normally contain the missing values

Sheet 2:
2.JPG

The big question is how do I manage to identify the red and green colored values (and link them to 'sheet 2')?

Regarding to the '52-Week High' (red colored in the sheets) I've already tried with the following functions:
- VLOOKUP: When I use this one I only get the most upper value, for example in the case of '8668102001' this would become '12'
- Combined INDEX/MATCH: The same problem as with VLOOKUP
- IF-function:In this case I get the max value of the entire 'C'-column, in the example of sheet 1: this would be '115'

Regarding the value of the share price of the last trading day of a specific year, I couldn't manage to come up with one.