After several shock moves, high-profile signings and an endless suspense, the 2020 summer transfer window finally came to an end on October 5. The Premier League, much like it is the case almost every year, topped the spending charts as the 20 top-flight clubs cumulatively spent a whopping £1.24b this summer.Many clubs oversaw successful windows during which they strengthened several problematic areas in their squad as well as got rid of their deadwood. Clubs like Chelsea, for instance, went into the window with power and purpose as they roped in as many as seven players as part of Frank Lampard's impressive project at Stamford Bridge.Kai Havertz in the Bundesliga this season:❍ 26 games❍ 11 goals❍ 5 assistsTimo Werner in the Bundesliga this season:❍ 30 games❍ 25 goals❍ 8 assistsRoman Abramovich's next piece of art? 🖼 pic.twitter.com/GgwfCUHMuL— Squawka Football (@Squawka) June 8, 2020On the other hand, their top-four rivals Manchester United endured a disappointing window in stark contrast to the Blues. This is despite their deadline day spree, during which they announced four signings. The Red Devils failed to address critical areas in the squad to build on their third-place finish from last year.On that note, here, we take a look at the five clubs with the highest net spend in the 2020 summer transfer window.*Disclaimer: All figures have been sourced from Sky Sports.*#5 Arsenal | Net spend: £64.5mWillian in action for ArsenalMikel Arteta's Arsenal were in danger of having a stale summer window right up until the very last day when they signed their only marquee player of the year. With just a few hours left on the clock, the Gunners triggered Thomas Partey's €50m/£45m release clause and prised him away from Atletico Madrid.The Ghanian's signing has ensured that Arsenal have had a successful window as they've addressed up to three key first XI spots in their side with Partey, Willian, and Gabriel Magalhaes for £27m.📲 𝗡𝗘𝗪 𝗠𝗘𝗦𝗦𝗔𝗚𝗘*𝘰𝘱𝘦𝘯𝘴 𝘞𝘩𝘢𝘵𝘴𝘈𝘱𝘱*👋 Hey, @Thomaspartey22! 🤳 pic.twitter.com/XuM95qaAKG— Arsenal (@Arsenal) October 8, 2020As for the departures, Arsenal did manage to get rid of a number of players including Henrikh Mkhitaryan, Matteo Guendouzi, Lucas Torreira, and others. However, while most of them were either loans or free transfers, only Emi Martinez's move to Aston Villa fetched them a considerable transfer fee of £17m.#4 Manchester City | Net spend: £76.5mNew signing Ferran Torres celebrates after scoring a goalManchester City were tipped to have an explosive transfer window after relinquishing their English crown to Liverpool by a record tally of 18 points. The Cityzens noticeably struggled at the back due to Aymeric Laporte's injuries, and Leroy Sane was unavailable as well.They tried to fix those issues with the purchases of Nathan Ake and Ferran Torres earlier on in the window for £41m and £20.8m respectively. Later on into the window, after a lot of speculation regarding their options at centre-back, Pep Guardiola finally got his marquee defensive signing in Ruben Dias of SL Benfica for a staggering £65m.Nathan Ake for Bournemouth in the Premier League since signing for the club in 2017/18:❍ Most games (105❍ Most clearances (606)❍ Most tackles (150)❍ Second-most possession won (500)❍ Second-most aerials won (255)❍ Second-most interceptions (115)A new club awaits. pic.twitter.com/wf3FL7aoDY— Squawka Football (@Squawka) July 30, 2020They had no noteworthy departures except for that of Sane, who moved to Bayern Munich after a relatively successful spell in Manchester. His £54.8m departure along with Nico Otamendi's £13.7m sale allowed City to recoup nearly half of their summer spend.Also read: Arsenal technical director Edu discusses Gunners' squad balance, Pierre-Emerick Aubameyang's contract, and more