Table:
seat
before
change

date
member
party
reason
date
member
party

sudbury
november 20, 2014
joe cimino
█ new democratic
resignation
february 5, 2015
glenn thibeault
█ liberal

simcoe north
august 1, 2015
garfield dunlop
█ pc
resignation
september 3, 2015
patrick brown
█ pc

whitby-oshawa
august 28, 2015
christine elliott
█ pc
resignation
february 11, 2016
lorne coe
█ pc

scarborough-rouge river
march 22, 2016
bas balkissoon
█ liberal
resignation
september 1, 2016
raymond cho
█ pc

ottawa-vanier
june 30, 2016
madeleine meilleur
█ liberal
resignation
november 17, 2016
nathalie des rosiers
█ liberal

niagara west-glanbrook
september 16, 2016
tim hudak
█ pc
resignation
november 17, 2016
sam oosterhoff
█ pc

sault ste. marie
december 31, 2016
david orazietti
█ liberal
resignation
june 1, 2017
ross romano
█ pc

carleton-mississippi mills
may 28, 2017
jack maclaren
█ pc
expulsion
none
none
█ trillium

toronto centre
september 1, 2017
glen murray
█ liberal
resignation
none
none
█ vacant

bramalea-gore-malton
october 20, 2017
jagmeet singh
█ new democratic
resignation
none
none
█ vacant

parkdale-high park
december 31, 2017
cheri dinovo
█ new democratic
resignation
none
none
█ vacant

simcoe north
february 16, 2018
patrick brown
█ pc
expulsion
none
none
█ independent

st. paul's
february 26, 2018
eric hoskins
█ liberal
resignation
none
none
█ vacant

kitchener-conestoga
april 9, 2018
michael harris
█ pc
expulsion
none
none
█ independent

Statement: on february 16, 2018, patrick brown of pc (simcoe north) is ejected from the pc caucus.
Question: when did patrick brown eject from simcoe north?
Answer: february 16, 2018