Cellectar Biosciences: Funding, Investors & Team (Sep 2026)
Cellectar Biosciences is a company that specializes in creating and advancing medical products for detecting, treating, and tracking different types of cancer in humans. Among its offerings is 131I-CLR1404, a substance used for cancer treatments. The company's products utilize a combination of lipid-like molecules, phospholipid ethers analogs, and radioactive isotopes to either visualize or eliminate cancerous cells. Originally called Cellectar, LLC, the company underwent a name change in 2008. It was established in 2003 and is headquartered in Madison, Wisconsin.
Cellectar Biosciences has raised $142M across 4 funding rounds on record, the most recent an undisclosed round of $35.0M announced in May 2026.
That round is above the $8.0M median round size for Biotechnology companies tracked on FundedIQ over the last two years.
Cellectar Biosciences Company Profile and Key Stats
Latest funding round on record: May 2026.
Cellectar Biosciences Funding Rounds
Cellectar Biosciences raised $2.0M in a Grant announced in Aug 2021.
1.1 years later, a Grant of $2.0M was announced in Sep 2022.
1 years later, an undisclosed round of $103M was announced in Sep 2023.
2.7 years later, an undisclosed round of $35.0M was announced in May 2026.
Cellectar Biosciences Founders and Leadership Team
Contact details for the Cellectar Biosciences team: 1 of 2 have an email address on file.
Start 14-day free trial →Cellectar Biosciences Funding Compared to Other Biotechnology Startups
Cellectar Biosciences' latest round of $35.0M is above the median round in Biotechnology. Medians cover the last 24 months of disclosed rounds.
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Cellectar Biosciences Funding FAQs
What does Cellectar Biosciences do?
Cellectar Biosciences is a company that specializes in creating and advancing medical products for detecting, treating, and tracking different types of cancer in humans. Among its offerings is 131I-CLR1404, a substance used for cancer treatments. The company's products utilize a combination of lipid-like molecules, phospholipid ethers analogs, and radioactive isotopes to either visualize or eliminate cancerous cells. Originally called Cellectar, LLC, the company underwent a name change in 2008. It was established in 2003 and is headquartered in Madison, Wisconsin.
How much funding has Cellectar Biosciences raised?
Cellectar Biosciences has raised $142M across 4 rounds on record. The most recent is an undisclosed round of $35.0M announced in May 2026.
When did Cellectar Biosciences last raise funding?
Cellectar Biosciences' most recent funding round on record is an undisclosed round of $35.0M, announced in May 2026.
Who is the CEO of Cellectar Biosciences?
Jim Caruso is listed as CEO at Cellectar Biosciences.
Where is Cellectar Biosciences headquartered?
Cellectar Biosciences is based in Madison, Wisconsin, United States.
How many employees does Cellectar Biosciences have?
Cellectar Biosciences is in the 11-50 employee band.
How does Cellectar Biosciences' funding compare to other Biotechnology startups?
Cellectar Biosciences' latest round of $35.0M is above the $8.0M median round size for Biotechnology companies on FundedIQ across 4,179 tracked companies over the last two years.
About FundedIQ's Cellectar Biosciences Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for Cellectar Biosciences is left off this page rather than filled in.
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