RMD

RMD's (Required Minimum Distributions) are taken from retirement accounts like IRA's, SEP IRA's, 401k's, etc.

https://www.irs.gov/retirement-plans/retirement-plan-and-ira-required-minimum-distributions-faqs

Is the stock in a IRA or 401k or retirement account?  How old are you?  If you have a IRA  or 401k etc.  you might need to take a RMD.  If you take a RMD or distribution from a retirement account  you will get a  1099R form at the end of the year to enter into your tax return.  

IRS Pub 590-B, page 7, Required minimum distributions (RMDs).
Individuals who reach age 72 after December 31, 2022, may delay receiving their RMDs until April 1 of the year following the year in which they turn age 73.
https://www.irs.gov/pub/irs-pdf/p590b.pdf

IRS Pub 590B https://www.irs.gov/pub/irs-pdf/p590b.pdf says…….
Your required beginning date. The date you must begin receiving RMDs is determined by the date you reach age 72. See the following to determine your applicable required beginning date.

Age 72 after December 31, 2022. If you reach age 72 after December 31, 2022, you must begin receiving required minimum distributions by April 1 of the year following the year you reach the age 73.

Age 72 in tax years 2020, 2021, or 2022. If you were born after June 30, 1949, you must begin receiving required minimum distributions by April 1 of the year following the year you reach age 72.

Age 70 ½ for tax years 2019 or earlier. If you were born before July 1, 1949, you were required to begin receiving required minimum distributions by April 1 of the year following the year you reach age 70 ½.