Twitter, Inc.
American defunct social media company
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| March 2025 | X Corp. is merged with Musk's startup xAI. |
| 2023 | Twitter was rebranded as X, marking a significant transformation of the social media platform under Elon Musk's ownership. |
| April 2023 | Twitter merged with X Holdings and ceased to be an independent company, becoming part of X Corp. |
| April 2023 | Twitter is merged with X Corp and designates National Public Radio as 'US state-affiliated media', sparking controversy. |
| January 18 2023 | Revue service was officially shut down, with all user data deleted. |
| December 14 2022 | Twitter announced the discontinuation of the Revue service, with plans to delete all user data. |
| November 8 2022 | Twitter is delisted from the New York Stock Exchange. |
| November 4 2022 | Twitter lays off approximately half of its 7,500 employees, leaving several internal departments understaffed. |
| October 28 2022 | Musk fires CEO Parag Agrawal and CFO Ned Segal immediately after acquiring the company. |
| October 27 2022 | Twitter acquisition by Elon Musk was closed, and the company became part of X Corp. |
| October 27 2022 | Musk completes the Twitter acquisition, paying $54.20 per share (approximately $44 billion), and takes control of the company. |
| October 4 2022 | Musk announced his intention to purchase Twitter for $44 billion, or $54.20 a share. |
| July 12 2022 | Twitter officials sued Musk in Delaware's Court of Chancery in response to the termination of the acquisition deal. |
| July 8 2022 | Elon Musk terminated the initial Twitter acquisition deal. |
| April 25 2022 | Twitter agreed to a $44 billion buyout by Elon Musk, one of the biggest deals to turn a company private. |
| April 14 2022 | Musk makes an unsolicited $44 billion offer to acquire Twitter and take the company private. |
| April 9 2022 | Musk is appointed to Twitter's board under a condition limiting his company ownership to 14.9%. |
| April 4 2022 | Elon Musk reveals purchasing 9.1% of Twitter for $2.64 billion, causing Twitter's stock to rise by 27%, the largest intraday surge since its 2013 IPO. |
| January 2022 | Twitter finalized the sale of MoPub to AppLovin for a reported $1.05 billion, a deal initially announced in October 2021. |
| 2021 | Twitter reported a financial loss of $221 million for the fiscal year, with an annual revenue of $5.1 billion. This was the last fiscal year before the company was taken private. |
| December 2021 | Twitter acquired and shut down Quill, a messaging service. |
| November 2021 | Twitter acquired and shut down threader.app, a service for transforming Twitter threads into web pages. |
| November 29 2021 | Jack Dorsey steps down as CEO, replaced by CTO Parag Agrawal. |
| April 2021 | Twitter announced the establishment of its African headquarters in Ghana, expanding its global presence. |
| March 31 2021 | Periscope was discontinued due to declining usage, product realignment, and high maintenance costs |
| January 26 2021 | Twitter acquired Revue, an email newsletter service to compete with platforms like Substack. |
| January 26 2021 | Twitter acquired the Revue newsletter service. |
| February 2020 | Elliott Management Corporation acquires a stake in Twitter, with potential plans to remove Jack Dorsey as CEO. |
| April 2019 | The Vine video archive was officially discontinued, marking the end of the platform's digital preservation efforts. |
| November 2017 | The Paradise Papers revealed that Twitter was among corporations avoiding taxes through offshore companies. |
| June 2017 | Twitter revamped its dashboard to improve the new user experience and user onboarding process. |
| January 2017 | Google acquired Fabric from Twitter and began integrating it into their Firebase platform. |
| January 20 2017 | Twitter launched an Internet archive of all previously published Vine videos, preserving the platform's historical content. |
| December 20 2016 | CTO Adam Messinger announces he is leaving the company. |
| November 2016 | COO Adam Bain announces his resignation, with CFO Anthony Noto taking over his role. |
| October 27 2016 | Twitter announced it would disable all new uploads to Vine, though existing videos could still be viewed and downloaded. |
| September 2016 | Twitter shares rose 20% after receiving potential takeover approaches from major companies including Alphabet, Microsoft, Salesforce.com, Verizon, and The Walt Disney Company. |
| June 2016 | Twitter acquired Magic Pony, an artificial intelligence startup, for $150 million. |
| January 2016 | Twitter announced that Fabric was installed on more than 2 billion active devices and used by over 225,000 developers, becoming the #1 crash reporting and mobile analytics solution among top 200 iOS apps. |
| January 26 2016 | Leslie Berland is named chief marketing officer, coming from American Express. |
| 2015 | Twitter acquired TellApart, a commerce ads tech firm, for $532 million in stock. |
| 2015 | Revue was founded in the Netherlands as an email newsletter creation and subscription service. |
| October 14 2015 | Omid Kordestani becomes executive chairman, replacing Jack Dorsey, who remains CEO. |
| June 10 2015 | Twitter announces CEO Dick Costolo will resign on July 1, 2015. |
| March 26 2015 | Periscope was officially launched as a live video streaming service |
| March 13 2015 | Twitter announced its acquisition of Periscope, a live video streaming app |
| February 11 2015 | Twitter acquired Niche, an advertising network for social media stars, for a reported $50 million. |
| October 2014 | Twitter announced Fabric, a suite of mobile developer tools built around Crashlytics, integrating multiple development services like Answers, Beta, Digits, MoPub, and TwitterKit into a single, modular SDK. |
| October 29 2014 | Twitter announced a partnership with IBM to help businesses use Twitter data for customer and trend analysis. |
| July 2014 | Twitter announced its intention to buy CardSpring, a company enabling retailers to offer online shoppers synced credit card coupons. |
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