he band was formed in August 2009 by lead guitarist Joe Savins and drummer Dave Rawling, who were joined by vocalist Mikey Chapman, bassist Sam Douglas and rhythm guitarist James Gillett, completing the band’s lineup. All members had previously been in different local bands.[5] The band has stated their name originates from a character from the film Natural Born Killers, saying “We wanted a character name, preferably someone with a dark edge and dark side and we were going to go for Dorian Gray but at the time there was a cheesy Hollywood movie coming out of Dorian Gray so we went for Mallory because of that.”.
After approximately 3 months of song writing, the band started to play local shows in Cambridge around November 2009. They later recorded their debut EP Pilot at Studio Glasseye with the help of producer Dan Lancaster (We Are The Ocean, Lower Than Atlantis). The band was signed to Wolf At Your Door Records and released the EP as a free download on 14 July.
The band later played across the UK on their first tour with Never Means Maybe, as well as being endorsed by Rockstar energy drink. The release of their first music video “Oceans” peaked as high as number 2 in the most requested Scuzz chart. A number of tours were then announced for the first quarter or 2011.
The band played at Download Festival in June 2012, then through November and December, the band supported rock band Canterbury in the UK. Throughout 2012 the band released a series of singles (including “Death Rattle”, “Wake Up”, “Lighthouse”, “Beggars” and “Hello”) and on 21 January 2013, the band released their first album, Signals. It reached No. 33 in the UK album charts. Mallory Knox on went to support Don Broco on their Priorities Tour from February 2013 to early April. The band later went on a UK headline tour in April to promote their debut album. It was announced on 19 April 2013 that they have signed with Search & Destroy Music, a joint venture between Raw Power Management and Sony. The band are represented by Craig Jennings’ management company Raw Power. During the Kerrang! Awards 2013, Mallory Knox where nominated for Best British Newcomer but lost to Lower Than Atlantis.[16] The band played at Slam Dunk Festival in May 2013. They then played on the opening stage at the Reading and Leeds Festivals in August. On 7 October 2013, a deluxe version of Signals was released, signed by the band and featuring five extra tracks.Mallory Knox also supported Biffy Clyro on 28 October in Guildford as part of the Samsung Galaxy Studio live shows.
Starting on 9 November 2013, the band embarked on a headline tour across Britain, supported by the bands Blitz Kids and Crooks. In December the same year, it was announced that the band will be touring with post-hardcore band A Day to Remember, along the likes of Every Time I Die and The Story So Far in the UK in February 2014.
In an issue of Rocksound magazine, the band stated that they had written 16 songs, but are going to commit to 10 or 11 of them to their new album and also stated that the album could be released as early as spring in the same year. In April the band performed at Slam Dunk Festival, and would later perform at 2014’s Reading and Leeds Festival in August. On 30 June 2014, details of the band’s second studio album, Asymmetry, were released. The tracklist, initial release date of 13 October 2014 and preorder details were revealed, ahead of its first track “QOD II” which was revealed on BBC Radio 1 a few days later. The expected release date was later changed to 27 October. In November, the band toured the UK in support of the new album. They played some of their biggest headline shows yet, with support from Frank Iero, Fort Hope and Moose Blood, culminating in two sold out nights at London’s Electric Ballroom. Early in 2015, the band toured America for the first time, supporting Pierce The Veil and Sleeping With Sirens on the second leg of the World Tour. The five-piece returned to the UK in March to headline the 2015 edition of Takedown Festival at Southampton University. In May, they announced that their second album Asymmetry would become available in the United States in June. Mallory Knox played the In New Music We Trust Stage at BBC Radio 1’s Big Weekend on the 23rd of May. All of the singles taken from the album received airplay on BBC Radio 1, with ‘Ghost In The Mirror’ and ‘Shout At The Moon’ reaching the A-List.