If she "sold" the 357,875 shares shown on the Form 144, she would have then resulted with 333,333 shares ...but as shown on the other Form 4 items cited, on 02/05/2021 she ended up having 782,408 shares. https://www.secform4.com/filings/1175680/0001807094-21-000001.htm
Fidelity COULD sell them if she in fact had followed through with her proposed sale of her stash… but she didn’t. So ‘Fidelity would’ is wrong. Should she have and rebought yesterday? Sure, in hindsight. Her prerogative, but let’s not make up actions or intent on her behalf fuddying up the waters.