Invivyd, Inc.

During today's discussion, we will be making forward-looking statements concerning, among other things, our corporate and commercial strategy, our research and development activities, our regulatory plans, certain financial expectations, our future prospects and other statements that are not historical facts. These forward-looking statements are covered within the meaning of the Private Securities Litigation Reform Act and are subject to various risks, assumptions and uncertainties that may change over time and cause our actual results to differ materially from those expressed or implied today. These forward-looking statements speak only as of the date of this call, and NVivid assumes no duty to update such statements. Additional information on the risk factors that could affect NVivid's business can be found in our filings made with the U.S. Securities and Exchange Commission, including our most recent Form 10-K and 10-Q, which are also available on our website. I will now turn the call over to Mark.

Thank you, Katie, and good morning, everyone. The third quarter for InVivid marked a turning point in our company's history and, we hope, also marked the beginning of substantial change in how we may prevent COVID for vulnerable Americans in the near future. In the third quarter, in addition to growing our Pemgarda commercial franchise, we received feedback from the U.S. FDA, a fellow of our vaccine alternative antibody, VYD2311, for broad populations that continue to suffer from COVID and who are not adequately served by current COVID vaccines. This feedback and our next steps at InVivid are the result of years of InVivid innovation and dialogue on that innovation with the FDA. By focusing on molecular evolution and by demonstrating the clinical benefits of our medicines in prospective, randomized, placebo-controlled clinical trials, we believe we and the FDA are working within the same highly robust intellectual framework for evaluating new medicines, all for the benefit of vulnerable populations and the American public. Following receipt of FDA feedback, we immediately moved in late summer to raise capital to power our intended studies, and in total raised approximately $87 million in capital in the quarter and shortly thereafter. This infusion of capital leaves InVivid well-funded to execute our pivotal clinical program, as well as to expand our current commercial organization in anticipation of BYD 2311 launch, all while staying highly disciplined on our operating expenditures. As a reminder, we have anticipated launch quantities of BYD 2311 and a route to scaling manufacturing and supply further as we approach launch. The next 12 to 18 months promises to be an extraordinary time for InVivid. On today's call, I'll briefly review some aspects of our upcoming pivotal program for VYD 2311, which is on track to initiate a round-year end and deliver top-line data in mid-2026. And then Tim Lee will walk through recent progress with Pemgarda and comment on the future commercial landscape for VYD 2311. Finally, Bill Duke will review our financials, and then we will be happy to take your questions. We recently conducted a webinar that contains substantial detail on our work with monoclonal antibodies and our plans for moving forward with our pivotal Declaration and Liberty clinical studies. I will briefly touch on some design elements and background logic for those studies today, but recommend that for more detail, listeners revisit our investor event webcast from last week. To start, it's important to remember that the category of COVID prevention was born with mRNA vaccines during the first year of the COVID pandemic. At that time, speed to market was prized over the collection of long-term placebo-controlled clinical data. As a result, the placebo-controlled efficacy data we have from COVID vaccination is principally from the two original major studies of mRNA vaccines, each with a relatively short efficacy follow-up of seven to eight weeks, at which point the efficacy data was unblinded and the vaccines were authorized. These studies were, of course, conducted then in immunologically naive humans rather than in today's seropositive human population and were conducted at a time of immunologically responsive original SARS-CoV-2 virus rather than against the immunologically evasive viruses we face today. So, other than measuring modern antibody titers that may not relate particularly to past observed protection in RCTs, there is very little controlled data on the efficacy of COVID vaccines beyond this original two-month look to inform current clinical protection and overall risk benefit. The FDA has used those original data and various real-world data sets and immunologic data to construct labeling language for the vaccines in our current environment. Both mRNA vaccines are indicated for use, quote, at least two months after the last dose of COVID-19 vaccine, unquote. But that statement does not provide any information on likely protection in a modern context if used maximally, for example, every two months, or if used as most people use it, once a year. Finally, CDC and ACIP recommendations have generally been consistent with FDA language recommending vaccine utilization once or twice per year or no more than every two months for certain vulnerable populations. The point is that while COVID vaccines remain a blockbuster medical category despite widespread skepticism, as a society, we do not have any modern randomized data describing current or long-term vaccine efficacy, We do not have any placebo-controlled prospective clinical trials demonstrating the safety and efficacy profile of repeat vaccine dosing. And we do not have any prospectively designed placebo-controlled information on the relationship between vaccine-induced antibody titers and clinical protection over either the short or long term. We designed the declaration study to address several of these issues in a compact fashion in order to advance our knowledge around COVID protection while rapidly moving VYD2311 to BLA submission if the study is successful. By using a single dose of VYD2311 with a three-month measurement, and by evaluating in parallel the safety and efficacy of monthly repeat dosing, We believe Invivid can, in one single study, provide more information on the extent, durability, and quantitative predictability of protection from COVID than we have had from COVID vaccines over the past five years. We are also evaluating currently our options for evaluating longer-term protection with VYD2311, as our modeling suggests that meaningful protection following a single dose would last for a year. More, in the Liberty study, we plan to assess in a head-to-head study the safety and tolerability profile of VYD2311 versus active comparator mRNA vaccines. Why? The single most important reason Americans avoid COVID vaccination for is fear of safety, and we see a critical opportunity to avoid the weaknesses of cross-trial comparison and by contrast, simply demonstrate what we expect to be the major safety advantage of antibody-based prophylaxis. Based on our prior studies of low-dose intramuscular antibodies, we expect a highly favorable side effect profile that reflects the absence of inflammation and immune engagement that can be uniquely offered by antibodies. Antibodies in vivid makes draw directly from normal human immune biology and do not require inflammation like a vaccine boost might, and so a clear demonstration of safety and tolerability advantage may be a critical piece for educating HCPs, vulnerable populations, and policymakers on the merits of our approach. Net, we believe that Declaration and Liberty provide an incredible opportunity to demonstrate the power of our antibodies in protecting people from COVID, and we anticipate that our data, expected mid-2026, will add to our growing body of information that can provide major confidence in a potentially superior medical approach to protection compared to COVID vaccines. Our clinical and regulatory groups have been moving quickly to stand up these studies, and we will look forward to updating you on our progress in the coming weeks and months. I will now turn the call over to Tim Lee, our Chief Commercial Officer, to talk about our progress with Vanguarda and our expectations for the VYD 2311 commercial environment.

Tim? Thank you, Mark. Last week in our investor webcast, I said that we believe there is an enormous near-term opportunity for InVivid. Now, I'll get into the future that we see. It is said that Thomas Jefferson quipped, I'm a great believer in luck. The harder I work, the more I have of it. We are able to help certain immunocompromised people avoid COVID today while planning to help a broad swath of Americans avoid COVID in the future with our next generation antibody. There's a lot to digest here from this slide because we are taking the actions that I told you that we take during our Q1 earnings call, and they are working. I told you we're beginning to make progress on contracting. Today we have more than 15,000 contracted GPO sites. I told you that we were refining messaging and today we have more than 1200 sites offering infusion and 76% of those accounts are reordering. I told you that we're beginning to be seen as a leader in COVID and we're acting as leaders and that means that we've been to more than 125 conferences. And all of this is enabling us to move from helping a smaller patient population today via infusion to a potential vaccine replacement with our next-generation antibody, if approved. Under Q1 call, I shared that the IDSA guidelines and the NCCN guidelines for B-cell lymphomas included Pemgarde. As you can see here on this slide, today, numerous medical societies and guidelines make that recommendation. And it's important that the medical community is recognizing the importance of antibodies in preventing COVID because the long-term impact of the disease continues to be dire. From the impact on children exposed to COVID-19 in utero, to our brains, to our cardiovascular systems, we should all want to avoid getting sick with COVID. We see a future that needs a widely available and accessible option to prevent COVID for most Americans. Current options simply are not enough, and we need to provide patient choice. The action now for HGPs and the immunocompromised people can scale to a much bigger market share should VUID 2311 be approved. we have found that people do not want to miss out on life because of COVID. They are on social media and they are receptive to learning more. I've talked about the number of conferences we've been at, but I wanted to share where we are from a commercial perspective. We're meeting HGPs who are most interested in keeping their immunocompromised patients protected against COVID and understand the damage that COVID continues to cause for the immunocompromised people who are in their care. As we consider the size of the potential commercial opportunity, at this point in 2025, COVID vaccine uptake is substantially below that of influenza vaccine uptake, despite people being more concerned about getting COVID than they are about getting the flu. As we've seen the CDC data, The reason why people do not get the COVID mRNA vaccine is a concern about side effects. We see extraordinary medical value to create a business to scale.