In May 2017, Sharptooth signed to
Pure Noise Records. The label features other bands such as
Knocked Loose,
Senses Fail, and
Less Than Jake. In early 2018, the ensemble toured with
Anti-Flag,
Stray from the Path and
The White Noise. In May 2018, they then went on to tour with
Senses Fail. In mid-2018, the ensemble performed on every date of the last full US run of the
Vans Warped Tour. The quintet also opened for the first
Cane Hill headlining tour in late 2018, and supported
As It Is in early 2019. In April 2019, the ensemble recorded their second
studio album, and travelled Europe with rock bands
Comeback Kid, No Turning Back and Jesus Piece. Once their tour in the Eastern Hemisphere was complete, it was followed in May 2019 by four concerts in Canada with Boundaries, Sudden Waves, Harriers and Cold Shoulder all supporting Canadian metal group
Obey the Brave. In September 2019, the quintet returned to Canada to perform alongside Canadian punk rock bands
Single Mothers and
Cancer Bats, and stated that they were working on their second studio album. In November, the band released singles "Mean Brain" and "Die for the Government", the latter being featured on
Hopeless Records compilation album
Songs That Saved My Life Vol. 2. In May 2020, the group published "Say Nothing (In The Absence Of Content)", the first music video for
Transitional Forms, their second studio album, released on 9 July 2020. Almost one month later, the ensemble released "The Gray", another single from their upcoming album. On July 10, 2020, the band released their sophomore album,
Transitional Forms. The day before the band also released a music video for their new song "Evolution (ft.
Justin Sane from Anti-Flag)" premiering on revolvermag.com On August 28, 2022, Lauren Kashan made an announcement on Instagram informing fans she had left the band over a year prior, citing a negative work environment and inability to self-express. On August 31, 2022, the band made an announcement introducing Marissa Ward, former vocalist of
beatdown hardcore band Backswing, as their new vocalist, while also announcing that they released a new single "I Didn't Ask to Be Here", that same day. Sharptooth's only EP with Ward on vocals,
Imperfect Animal, was released on October 31, 2022. On November 28, 2023, Sharptooth announced their disbandment via a cryptic post on the band's social media pages, featuring an image stating "2013-2023" with the message "Thank You", and removed the
Imperfect Animal EP from streaming services. Shortly afterwards, Marissa Ward released a statement on Instagram stating that the band had quietly disbanded months before, while also stating that she experienced very similar circumstances as Kashan, claiming that the band "belittled, mocked, disrespected and tokenized" her during her time with Sharptooth. == Critical reception ==