VivoSim Labs announces $4.0 million private placement with institutional investor for working capital.

VivoSim Labs (Nasdaq: VIVS) has priced a $4.0 million private placement with a single healthcare-focused institutional investor, the company announced. The deal is set to close on or about July 17, 2026, according to Ottawa Sun.
The offering includes 4,705,883 shares of common stock and warrants to buy up to 4,788 additional shares. VivoSim makes 3D human cellular models used in drug safety testing — an alternative to traditional animal testing. The company plans to use the cash for working capital and general corporate purposes, The Sudbury Star reported.
The private placement is priced at-the-market under Nasdaq rules. That means the share price matches VivoSim's current trading price — no discount to attract the buyer. The single unnamed investor is described only as a healthcare-focused institution, according to Northern News.
The warrants give the investor the right to buy up to 4,788 additional shares at $0.85 each. Those warrants kick in only after shareholders approve the deal. From that point, they are good for five years, Woodstock Sentinel Review reported.
VivoSim builds what it calls New Approach Methodologies, or NAMs. These are 3D models made from human cells. Drug companies use them to test whether a new drug is safe before human trials. The goal is to get more accurate safety data than animal tests provide, according to Seaforth Huron Expositor.
The preclinical safety testing market is large. Pharma and biotech companies must run safety checks before any drug reaches a human. More accurate models can save time and money — and could reduce the number of drugs that fail late in development, Ontario Farmer noted.
The shares are being sold under Section 4(a)(2) of the Securities Act of 1933. That rule lets companies raise money from certain investors without filing a full public registration. It is commonly used for private placements with qualified institutional buyers, Fort Saskatchewan Record reported.
Because the shares are not registered, the investor cannot freely sell them on the open market right away. VivoSim has not said whether it will file a registration statement to make the shares resalable later, according to The Crag and Canyon.
For a small Nasdaq-listed biotech like VivoSim, $4 million is a meaningful raise. Small preclinical-stage companies typically burn cash before generating steady revenue. Fresh capital buys time to advance products and land customers, County Market noted.
The company gave no breakdown of how it will split the funds between working capital needs and other corporate costs. Shareholders will need to vote to approve the warrant exercise before investors can use that portion of the deal, according to The Crag and Canyon.
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