Manchester United completed a fourth deadline-day signing on Friday as Melvine Malard joined from Lyon.
The 23-year-old forward, a two-time Champions League winner with the French side, joins on season-long loan.
United also completed the £150,000 signing of Everton defender Gabby George on Thursday.
George's signing was followed by the arrival of midfielder Irene Guerrero from Atletico Madrid and goalkeeper Phallon Tullis-Joyce from OL Reign.
"I am truly very happy to be here, and to join this club and this city. I cannot wait to meet the fans and get started," said Malard.
Manager Marc Skinner added: "Melvine's honours speak for themselves, and we are delighted to welcome a proven winner at domestic and European level to our Manchester United family."
After her arrival on Thursday, American goalkeeper Tullis-Joyce, 26, said: "Today has been pure excitement for me.
"Manchester United is such an historic club, that has already done so much in the women's game. I'm so honoured to get this opportunity."
Spain midfielder Guerrero, 26, was part of the Spain squad who were crowned champions at this summer's Women's World Cup.
"I am very proud to be part of the Manchester United family and look forward to achieving all our goals together," said Guerrero.
Skinner said: "Irene is a World Cup winner whose quality is an excellent addition to our team.
"The experience she brings, both domestically and internationally, will be key as we pursue success across the multiple competitions."
Later on Thursday, United defender Jess Simpson, 18, completed a season-long loan move to Bristol City after signing a first professional contract in January.
On Friday, 19-year-old forward Alyssa Aherne also left the club to join Everton on a season-long loan.
George leaves Everton after nearly 10 years
George departs Everton after almost 10 years at the club, having previously come through United's academy.
The 26-year-old, who became the first female player at Everton to sign a professional contract in 2017, made her 100th Women's Super League appearance at Goodison Park when she captained the Toffees in a 1-1 draw with Liverpool in March.
"I wouldn't be the player and person I am today if it wasn't for Everton. I will always be incredibly grateful for that," said George.
"Everton will always hold a special place in my heart. I wish the club and the outstanding supporters the very best for this season and beyond."
On her move to Manchester United, George added: "As a massive Manchester United fan, I'm buzzing to be here. It's the club I've supported since I was born, and I'm delighted to come back.
"This club means a lot to me and my family, and it's where we want to be."