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Goodwill and Intangible Assets | 6 Months Ended
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Jun. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Intangible Assets | Goodwill and Intangible Assets On November 13, 2023, the Company merged with Old Cartesian in accordance with the terms of the Merger Agreement, by and among Selecta, Sakura Merger Sub I, Inc., a wholly owned subsidiary of Selecta, or First Merger Sub, Sakura Merger Sub II, LLC, a wholly owned subsidiary of Selecta, or Second Merger Sub, and Old Cartesian. Pursuant to the Merger Agreement, First Merger Sub merged with and into Old Cartesian, pursuant to which Old Cartesian was the surviving corporation and became a wholly owned subsidiary of Selecta, or the First Merger. Immediately following the First Merger, Old Cartesian merged with and into Second Merger Sub, pursuant to which Second Merger Sub was the surviving entity, or the Second Merger and, together with the First Merger, the Merger. In connection with the Second Merger, Old Cartesian changed its name to Cartesian Bio, LLC. As a result of the Merger, Selecta changed its corporate name to Cartesian Therapeutics, Inc. See Note 4 to the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024 for further discussion of the Merger. Goodwill The Merger resulted in goodwill of approximately $48.2 million. There were no changes to the carrying value of the Company’s goodwill during the six months ended June 30, 2025. Intangible Assets The following summarizes the Company’s indefinite-lived intangible assets, all of which were acquired in the Merger (in thousands):
|  |  |  | June 30, |  | December 31, |  |  |  |
|  |  |  | 2025 |  | 2024 |  |  |  |
Descartes-08 for MG |  |  |  | $ | 93,900 |  |  | $ | 93,900 |  |  |  |  |
Descartes-08 for SLE |  |  |  | 56,700 |  |  | 56,700 |  |  |  |  |
Total in-process research and development assets |  |  |  | $ | 150,600 |  |  | $ | 150,600 |  |  |  |  |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-30/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-20/tableOfContent + Details
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