Clinical-stage Houston cell therapy company closes $28.4M oversubscribed series A

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March Biosciences' oversubscribed raise brought in $28.4 million of financing with Mission BioCapital and 4BIO Capital leading the pack of investors. Photo via Getty Images

An emerging biotech company in Houston has closed its series A with outsized success.

March Biosciences' oversubscribed raise brought in $28.4 million of financing with Mission BioCapital and 4BIO Capital leading the pack of investors. The company has now raised more than $51 million in total.

Last year, March Biosciences announced its strategic alliance with CTMC (Cell Therapy Manufacturing Center), a joint venture between MD Anderson Cancer Center and National Resilience. CEO Sarah Hein met her co-founder, Max Mamonkin, at the TMC Accelerator for Cancer Therapeutics. Along with fellow co-founder Malcolm Brenner, March Biosciences launched from the Center for Cell and Gene Therapy (Baylor College of Medicine, Houston Methodist Hospital and Texas Children’s Hospital). Its goal is to fight cancers that have been unresponsive to existing immunotherapies using its lead asset, MB-105.

An autologous CD5-targeted CAR-T cell therapy, MB-105 is currently in phase-1 trials in patients with refractory T-cell lymphoma and leukemia. The treatment is showing signs of being both safe and effective, meriting a phase-2 trial that will begin early next year. The funds raised from the series A will help to finance the Phase 2 clinical development of MB-105 to expand on the existing data with optimized manufacturing processes.

“This oversubscribed financing enables us to advance our first-in-class CAR-T therapy, MB-105, into a Phase 2 trial for T-cell lymphoma – an indication with an exceptionally poor prognosis and few treatment options,” says Hein. “With the support and confidence of our investors, we are not only advancing our lead program but also expanding our pipeline, underscoring our commitment to delivering best-in-class therapies to patients that can change the treatment paradigm for these challenging cancers.”

But that’s not the only exciting news that Hein and her associates have to report. March Biosciences has recently partnered with cell therapy venture studio, Volnay Therapeutics. Led by highly experienced cell therapy development veterans, the March Biosciences team will work to develop a scalable manufacturing process for MB-105 that will lead to commercialization. Volnay co-founder and CEO Stefan Wildt, who held key R&D leadership positions in cell and gene therapy units at Novartis and Takeda, has also joined the board of March Biosciences. The board of directors is also welcoming Cassidy Blundell of Mission BioCapital and Owen Smith of 4BIO Capital.

“The team at March Biosciences is leveraging powerful science and promising clinical data to tackle cancers with significant unmet need,” says Blundell, a partner at Mission BioCapital. “We're excited to support their journey and believe their focused approach with MB-105 could lead to significant breakthroughs in the CAR-T space.”

The Houston-born company, which is a finalist for the 2024 Houston Innovation Awards, continues to accelerate quickly, in part thanks to its home base. After all, existing local investors like TMC Venture Fund also participated in the new raise. As Hein said last year, “Working with partners here in Houston, we have all the pieces and the community rises to the occasion to support you.”

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Houston startup taps strategic partner to produce novel 'biobased leather'

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A Houston-based next-gen material startup has revealed a new strategic partnership.

Rheom Materials, formerly known as Bucha Bio, has announced a strategic partnership with thermoplastic extrusion and lamination company Bixby International, which is part of Rheom Material’s goal for commercial-scale production of its novel biobased material, Shorai.

Shorai is a biobased leather alternative that meets criteria for many companies wanting to incorporate sustainable materials. Shorai performs like traditional leather, but offers scalable production at a competitive price point. Extruded as a continuous sheet and having more than 92 percent biobased content, Shorai achieves an 80 percent reduction in carbon footprint compared to synthetic leather, according to Rheom.

Rheom, which is backed by Houston-based New Climate Ventures, will be allowing Bixby International to take a minority ownership stake in Rheom Materials as part of the deal.

“Partnering with Bixby International enables us to harness their extensive expertise in the extrusion industry and its entire supply chain, facilitating the successful scale-up of Shorai production,” Carolina Amin Ferril, CTO at Rheom Materials, says in a news release. “Their highly competitive and adaptable capabilities will allow us to offer more solutions and exceed our customers’ expectations.”

In late 2024, Rheom Materials started its first pilot-scale trial at the Bixby International facilities with the goal of producing Shorai for prototype samples.

"The scope of what we were doing — both on what raw materials we were using and what we were creating just kept expanding and growing," founder Zimri Hinshaw previously told InnovationMap.

Listen to Hinshaw on the Houston Innovators Podcast episode recorded in October.

Texas' first decacorn and more top innovation news for January 2025

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Editor's note: It's time to look back at the top innovation headlines from January 15-30. Here are the most-read InnovationMap stories for the second half of January 2025, from the birth of Texas' first decacorn to an exciting collaboration between researchers at top Texas universities.

1. Biosciences startup becomes Texas' first decacorn after latest funding

Colossal Bioscience.Texas bioscience company Colossal is reportedly the state's first decacorn. Courtesy photo

A Dallas-based biosciences startup whose backers include millionaire investors from Austin and Dallas has reached decacorn status — a valuation of at least $10 billion — after hauling in a series C funding round of $200 million, the company announced this month. Colossal Biosciences is reportedly the first Texas startup to rise to the decacorn level. Continue reading.

2. Houston investor on why 2025 will be the year of exits

Samantha Lewis of Mercury joins the Houston Innovators Podcast. Photo courtesy of Mercury

Samantha Lewis will be the first to admit that the past few years have been tough on startups and venture capital investors alike. However, as she explains on the Houston Innovators Podcast, the new year is expected to look very different. Continue reading.

3. Houston private equity firm beats target on first investment fund

The Sallyport Partners Fund focuses on investments in founder- and family-owned businesses, corporate carve-outs and startups in various industries. Photo via Getty Images

Houston-based private equity firm Sallyport has raised $160 million for its first investment fund, exceeding the target amount by $10 million. The Sallyport Partners Fund focuses primarily on investments in founder- and family-owned businesses, corporate carve-outs and startups in various industries. Continue reading.

4. Texas universities develop innovative open-source platform for cell analysis

Baylor College of Medicine, Texas A&M and University of Houston researchers have designed SPACe, a new open-source image analysis platform. Photo via Getty Images

What do labs do when faced with large amounts of imaging data? Powerful cloud computing systems have long been the answer to that question, but a new riposte comes from SPACe. That’s the name of a new open-source image analysis platform designed by researchers at Baylor College of Medicine, Texas A&M University and the University of Houston. Continue reading.

5. The Ion names new coworking partner for Houston innovation hub

Coworking company Industrious replaces WeWork-owned Common Desk at The Ion. Photo via thecommondesk.com

Rice University subsidiary Rice Real Estate Co. has tapped coworking company Industrious as the new operator of the Ion’s 86,000-square-foot coworking space in Midtown. Industrious replaces WeWork-owned Common Desk in that role. Continue reading.

Justice Department sues to block Houston-based HPE's $14B buyout of Juniper

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The Justice Department sued to block Hewlett Packard Enterprise's $14 billion acquisition of rival Juniper Networks on Thursday, the first attempt to stop a merger by a new Trump administration that is expected to take a softer approach to mergers.

The Justice complaint alleges that Hewlett Packer Enterprise, under increased competitive pressure from the fast-rising Juniper, was forced to discount products and services and invest more in its own innovation, eventually leading the company to simply buy its rival.

The lawsuit said that the combination of businesses would eliminate competition, raise prices and reduce innovation.

HPE and Juniper issued a joint statement Thursday, saying the companies strongly oppose the DOJ's decision.

“We will vigorously defend against the Department of Justice’s overreaching interpretation of antitrust laws and will demonstrate how this transaction will provide customers with greater innovation and choice, positively change the dynamics in the networking market,” the companies said.

The combined company would create more competition, not less, the companies said.

The Justice Department's intervention — the first of the new administration and just 10 days after Donald Trump's inauguration — comes as somewhat of a surprise. Most predicted a second Trump administration to ease up on antitrust enforcement and be more receptive to mergers and deal-making after years of hypervigilance under former President Joe Biden’s watch.

Hewlett Packard Enterprise announced one year ago that it was buying Juniper Networks for $40 a share in a deal expected to double HPE’s networking business.

In its complaint, the government painted a picture of Hewlett Packard Enterprise as a company desperate to keep up with a smaller rival that was taking its business.

HPE salespeople were concerned about the “Juniper threat,” the complaint said, also alleging that one former executive told his team that “there are no rules in a street fight,” encouraging them to “kill” Juniper when competing for sales opportunities.

The Justice Department said that Hewlett Packard Enterprise and Juniper are the U.S.'s second- and third-largest providers of wireless local area network (WLAN) products and services for businesses.

“The proposed transaction between HPE and Juniper, if allowed to proceed, would further consolidate an already highly concentrated market — and leave U.S. enterprises facing two companies commanding over 70% of the market,” the complaint said, adding that Cisco Systems was the industry leader.

Many businesses and investors accused Biden regulatory agencies of antitrust overreach and were looking forward to a friendlier Trump administration.

Under Biden, the Federal Trade Commission sued to block a $24.6 billion merger between Kroger and Albertsons that would have been the largest grocery store merger in U.S. history. Two judges agreed with the FTC’s case, blocking the proposed deal in December.

In 2023, the Department of Justice, through the courts, forced American and JetBlue airlines to abandon their partnership in the northeast U.S., saying it would reduce competition and eventually cost consumers hundreds of millions of dollars a year. That partnership had the blessing of the Trump administration when it took effect in early 2021.

U.S. regulators also proposed last year to break up Google for maintaining an “abusive monopoly” through its market-dominate search engine, Chrome. Court hearings on Google’s punishment are scheduled to begin in April, with the judge aiming to issue a final decision before Labor Day. It’s unclear where the Trump administration stands on the case.

One merger that both Trump and Biden agreed shouldn’t go through is Nippon Steel’s proposed acquisition of U.S. Steel. Biden blocked the nearly $15 billion acquisition just before his term ended. The companies challenged that decision in a federal lawsuit early this year.

Trump has consistently voiced opposition to the deal, questioning why U.S. Steel would sell itself to a foreign company given the regime of new tariffs he has vowed.

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