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Beam Therapeutics sues YolTech and Serapha Bio over alleged gene editing secrets theft

Beam Therapeutics sues YolTech and Serapha Bio over alleged gene editing secrets theft GenoMethods.org © genomethods.org
Beam Therapeutics sues YolTech and Serapha Bio over alleged gene editing secrets theft © genomethods.org
Beam Therapeutics claims YolTech Therapeutics and Serapha Bio stole its base editing technology for a rare disease treatment. The dispute has triggered a major legal fight in the biotech world.
Zi Jun “Emma” Wang once worked at Beam Therapeutics. Now, Beam says she took more than a paycheck. The company alleges Wang secretly set up YolTech Therapeutics in China while still on Beam’s staff. Court records show she accessed Beam’s internal files, including data outside her normal duties. This happened late at night and on weekends. The lawsuit, filed September 28, 2026, in the U.S. District Court in Massachusetts, names Wang, Yuxuan (Jensen) Wu, Serapha Bio, and Shanghai Yaotang Biotechnology Co., Ltd. as defendants under the Defend Trade Secrets Act. Details appear in Law360 court filings.

Zi Jun “Emma” Wang was employed at Beam Therapeutics from March 2021 to January 2022, after which Beam alleges she used internal data to launch YolTech and related patent applications.

The Boston Globe

After Wang left, YolTech, led by CEO Yuxuan “Jensen” Wu, signed a licensing deal with Serapha Bio. The agreement handed over rights to an experimental therapy for alpha-1 antitrypsin deficiency (AATD). This rare disease is a hot spot for gene editing firms. The money behind the deal is still secret. But Serapha’s plans are public. The company wants to go public through a reverse merger and speed up work on the therapy. It has $230 million in backing from RA Capital Management and RTW Investments.

Beam’s own AATD drug, BEAM-302, uses its base editing platform. This technology makes single-letter changes in DNA. According to a Reuters company profile, Beam’s rare disease programs rely on this base editing method. Early trial results show BEAM-302 can restore a key protective protein in patients. Beam is now enrolling more people in a new study. If results stay strong, the company hopes for fast-track U.S. approval. In court, Beam claims Serapha’s drug, “SERP-01,” targets the same genetic mutation and uses the same DNA change as BEAM-302. Beam says this is proof its technology was taken.

Serapha Bio is fighting back. “Serapha categorically refutes Beam’s claims and will vigorously defend the company,” wrote Shiva Fritsche, Serapha’s chief corporate affairs officer, in a statement to BioPharma Dive. Serapha insists its work is independent and legal. The legal fight is set to drag on. Stakes are high for everyone involved.

The dispute centers on therapies for alpha-1 antitrypsin deficiency (AATD), a rare liver and lung disease. This area became the subject of a licensing deal between YolTech and Serapha, with both companies now facing Beam’s legal challenge.

Bloomberg Law

This case is not just a private feud. It tests the limits of intellectual property in gene editing. Both BEAM-302 and SERP-01 go after the same rare disease mutation with similar editing tools. The outcome could shake the biotech sector. Proprietary editing platforms are now big business. Companies risk losing their edge when staff and know-how move across borders. Beam’s lawsuit sends a message. Trade secrets are now a battleground. The old days of easy tech transfer are over.

YolTech says it will fight Beam’s claims, according to The Boston Globe. So far, there are no court rulings, injunctions, or verdicts on the main dispute.

Adrian Cole Founder, bioengineering editor and methods specialist GenoMethods.org
Biotechnology Newsroom

Adrian Cole

Adrian Cole is the Founder and Editor-in-Chief of GenoMethods, where he writes about bioengineering, genome and cell engineering, synthetic biology, computational biology and emerging research methods. His editorial approach focuses on how technologies actually work, how they are validated and where the evidence stops supporting the claim.