Good afternoon and welcome to today's earnings call for Omeros Corporation. At this time, all participants are in a listen-only mode. After the company's remarks, we will conduct a question-and-answer session. Please be advised this call is being recorded at the company's request, and the replay will be available on the company's website one week from today. I will now turn the call over to Jennifer Williams, Investor Relations for Omeros. Good afternoon and thank you for joining us. Before we begin, I'd like to remind you that certain statements made during this call are forward-looking. These statements reflect management's current beliefs and expectations as of today and are subject to change. Forward-looking statements involve risks and uncertainties that could cause actual results to differ materially. For a discussion of these risks and uncertainties, please refer to the special note and the risk factors section regarding forward-looking statements in our quarterly report on Form 10-Q filed today with the SEC and the risk factors section of our most recent annual report on Form 10-K. With that, I'll turn the call over to Chairman and CEO of Omeros, Dr. Greg Demopulos. Thank you, Jennifer, and good afternoon, everyone. Joining me today are David Borges, our Chief Accounting Officer, Nadia Dac, Chief Commercial Officer, Dr. Andreas Grauer, Chief Medical Officer, and Dr. Cathy Melfi. Hello, ladies and gentlemen. Please stand by. Your conference call will resume momentarily. Once again, ladies and gentlemen, please stay on the line. Your conference call will resume momentarily. Again, ladies and gentlemen, please stand by. Your conference call will resume momentarily. Once again, ladies and gentlemen, please stay on the line. Again, ladies and gentlemen, please stand by. Your conference call will resume momentarily. Again, ladies and gentlemen, please stand by. Your conference call will resume momentarily. One moment. Ladies and gentlemen, we thank you for your patience. We do apologize. This is a notified conferencing problem. I'd like to turn the call over to Jennifer Williams for the safe harbor. Please go ahead, ma'am. Good afternoon, and thank you for joining us or speaking with us. Before we begin, I'd like to remind you that certain statements made during this call are forward-looking. These statements reflect management's current beliefs and expectations as of today and are subject to change. Forward-looking statements involve risks and uncertainties that could cause actual results to differ materially. For a discussion of these risks and uncertainties, please refer to the special note and the risk factors section regarding forward-looking statements in our quarterly report on Form 10-Q filed today with the SEC and the risk factors section of our most recent annual report on Form 10-K. With that, I'll turn the call over to Chairman and CEO of Omeros, Dr. Greg Demopulos. Thank you, Jennifer, and good afternoon, everyone. Joining me today are David Borges, our Chief Accounting Officer; Nadia Dac, Chief Commercial Officer; Dr. Andreas Grauer, Chief Medical Officer; Dr. Cathy Melfi, Chief Regulatory Officer; and Dr. Steve Whitaker, Vice President of Clinical. I'll begin with an overview of our second quarter 2025 financial results and provide updates across our development programs. David will then walk through the financials in more detail and will open the call for questions. Our net loss for the second quarter of 2025 was $25.4 million or $0.43 per share, compared to a net loss of $33.5 million or $0.58 per share in the first quarter of this year. As of June 30, 2025, we had $28.7 million in cash and investments. This was further strengthened by a registered direct offering completed on July 28, 2025, which raised $20.6 million in net proceeds. During the quarter, we took decisive steps to strengthen our balance sheet and extend our debt maturity profile. Through a combination of convertible note exchanges and equity conversions, we reduced the outstanding principal on our 2026 notes from $98 million to $17 million, eliminated a $20 million mandatory prepayment on our term loan, and extended the large majority of our debt out to 2029. These actions, including the July offering with Polar Asset Management Partners, reduced our near-term payment obligations by over $100 million. This further positions us to focus capital on advancing key programs and supporting the anticipated launch of narsoplimab. We've removed a major structural overhang, streamlined our balance sheet, and are now better positioned to access additional capital through partnerships, equity, or debt offerings, or sales under our active ATF facility. As previously disclosed, we're in discussions regarding potential asset acquisition and/or licensing agreements involving certain of our clinical assets. The most advanced of these discussions is driving toward a multi-billion dollar transaction exclusive of royalties. Upon closing, we expect to receive an upfront cash payment sufficient to repay, in full, the $67.1 million term loan outstanding under our senior secured credit facility, repay at maturity the remaining $17.1 million principal balance of our 2026 convertible notes, and provide sufficient capital for over 12 months of post-closing operations. This transaction is also expected to include near and longer term milestones and, if regulatory approval is obtained, sales-based milestones and royalties. Let's now turn to the anticipated approval and launch of narsoplimab, our proprietary human monoclonal antibody against MASP-2, the key activator of the lectin pathway of complements. While we've identified several commercially attractive follow-on indications for narsoplimab, the initial indication is stem cell transplant-associated thrombotic microangiopathy, or TA-TMA, a life-threatening complication of stem cell transplant. In March, we resubmitted our Biologics License Application, or BLA, for narsoplimab in TA-TMA. The FDA accepted the submission for review and assigned a PDUFA target action date of September 25th. Following our submission of additional information requested by FDA, the agency extended the PDUFA date to December 26th. We continue to work collaboratively with FDA. Our objective is to expedite the review and potential approval process. To date, results of all requested analyses have been shown to be statistically significant and are consistent with and supportive of narsoplimab's benefits, as demonstrated in our BLA resubmission. Assuming no major deficiencies are identified during its review, FDA has indicated that labeling discussions are planned to begin no later than October 2025. In June, we submitted our Marketing Authorization Application, or MAA, for narsoplimab in TA-TMA to the European Medicines Agency. The MAA has been validated, initiating a formal review process by the Committee for Medicinal Products for Human Use. We expect a decision on the MAA in mid-2026. We continue to expect that narsoplimab will be the first approved therapy for TA-TMA and that it is well- positioned to address a substantial market opportunity. Awareness is growing among transplant physicians regarding the risks of C5 inhibitors like eculizumab and ravulizumab, which are often used off-label in TA-TMA and have been shown to be associated with increased infection rates and related complications. A retrospective single-center case control study published last month in the American Journal of Hematology found that pediatric TA-TMA patients treated with the C5 inhibitor eculizumab had significantly higher infection rates compared to well-matched controls. Specifically, in the eculizumab-treated group, bacteremia was 8.5 fold higher, and one-year infection-related mortality was six-fold higher. Similar findings are being reported in adults. Mechanistically, C5 inhibitors like C3 inhibitors block the infection-fighting lytic arm of the classical pathway of complement, markedly increasing the risk of infection and death in immunocompromised patients. In contrast, by targeting and inhibiting MASP-2, narsoplimab preserves the classical pathway's lytic function and the adaptive immune response. We believe both safety and efficacy will be key differentiators and drivers of adoption for narsoplimab. Two manuscripts will soon be published in premier peer-reviewed journals detailing narsoplimab's safety and survival benefits in high-risk TA-TMA patients. The first, already accepted for publication, assesses survival in both adults and children treated under expanded access. The second is under review and compares narsoplimab-treated adults in both the pivotal trial and in the expanded access program to a well-matched external control. Thanks to the continued efforts of our field-based market development and access teams, we're well- positioned to drive demand in our highest priority transplant centers upon approval. These centers are already actively monitoring for signs and symptoms of TA-TMA and are familiar with narsoplimab and its clinical profile. We're executing a phased onboarding of hematology experienced sales professionals who first will target the highest volume transplant centers, expanding more broadly over time. Our sales leadership is currently in active discussions with top-tier candidates with deep expertise in transplant and rare hematologic diseases. Notably, many have been closely following narsoplimab's development and are genuinely enthusiastic to launch a product that can significantly improve outcomes and save patients' lives. In parallel, we're engaging hospital decision-makers and payers through pre-approval information exchanges to support planning for coverage and reimbursement. Feedback has been highly encouraging. Stakeholders recognize the strong clinical safety and efficacy data for narsoplimab and are eager for an approved treatment option that avoids the risks associated with off-label C5 inhibitors. Upon approval, we will leverage our experienced field marketing team and a highly skilled sales force to drive rapid uptake. By emphasizing the compelling clinical data and proactively addressing access barriers, we're confident in our ability to deliver a successful launch and life-saving outcomes to TA-TMA patients and their families. Looking to the rest of our MASP-2 inhibitor family, OMS1029, our long-acting once-quarterly MASP-2 antibody, is ready to restart phase II clinical trial activities once resources are available. We have adequate supply of OMS1029 and matched placebo to support the phase II program. Our orally administered small molecule MASP-2 inhibitor program is nearly ready to begin IND-enabling studies. Both programs target indications suited to their respective delivery modes and pharmacologic profiles. Turning to our MASP-3 inhibitor program, zaltenibart, also known as OMS906, is our phase III asset and lead MASP-3 antibody. MASP-3 is the key activator and most proximal target in the alternative pathway of complement. The initial indication is paroxysmal nocturnal hemoglobinuria or PNH. The global PNH market is projected to grow at 11% annually, reaching over $10 billion by 2032. The complement inhibitor segment alone is expected to more than double, from $2.2 billion today to $4.7 billion over the next seven years. We believe zaltenibart can carve out a significant share in this growing market. Phase group studies of zaltenibart in PNH have shown efficacy at least equivalent to that of any other alternative pathway targeting agent on the market or in development. Zaltenibart's differentiators include once every two months to once-quarterly dosing, improved compliance, reduced risk of life-threatening breakthrough disease, and no safety signals of concern observed in preclinical or clinical studies. The phase III program was paused to prioritize narsoplimab approval and market launch and is set to restart when capital is available. The potential indications for zaltenibart are broad, and the market opportunity is substantial. Let's now look at our programs beyond our complement franchise. Our PDE7 inhibitor program is evaluating OMS527 for cocaine use disorder, or CUD, fully funded by a grant from the National Institute on Drug Abuse, or NIDA. Preclinical studies designed by NIDA toxicologists have been successfully completed with no safety findings and provide the drug interaction safety data in support of the planned inpatient human study of 527 in cocaine users. FDA has requested additional preclinical information before initiating the inpatient trial, which we target for the first part of 2026. We're also advancing our oncology platform, including IND-enabling studies for our OncotoX biologics program. The lead indication is acute myeloid leukemia, or AML. Our OncotoX-AML therapeutic has consistently demonstrated superior efficacy to current AML standard-of-care treatments, both in vivo, in immunocompromised mice with human tumors, and in vitro with human cell lines. The lead candidate therapeutic shows broad applicability across AML, regardless of genetic mutations, whether that be TP53, NPM1, KMT2A, or FLT3. We aim to enter the clinic within 18-2 4 months, guided by our distinguished clinical steering committee composed of world leaders in AML treatment and research. I'll now turn the call over to David Borges, our Chief Accounting Officer, to go through a more detailed discussion of our financial results. David? Thanks, Greg. Our net loss for the quarter of 2025 was $25.4 million, or $0.43 per share, compared to a net loss of $33.5 million, or $0.58 per share in the first quarter of this year. As of June 30, 2025, we had $28.7 million of cash and investments on hand. As Greg mentioned, we closed a registered direct offering on July 28, in which we received net proceeds of $20.6 million. As we noted in our May 13 conference call, we entered into an exchange agreement with certain holders of our 2026 convertible notes. We exchanged $70.8 million in aggregate principal amounts of our 2026 convertible notes on a one-for-one basis for newly issued convertible senior notes due in June 2029. In addition, we reached an agreement with two holders to convert $10 million of their 2026 notes into shares of the company's stock in three tranches over a 90-day period, with the conversion to be finalized by mid-September 2025. Following these transactions, the outstanding principal balance of our 2026 notes has been reduced from $97.9 million to $17.1 million. Most importantly, this reduction in principal of the notes enabled the company to avoid making a $20 million mandatory prepayment under our term loan agreement, which otherwise would have been required on or before November 1, 2025. These transactions siGnificantly pushed out debt maturities, with only $17.1 million of debt due within the next 12 months. Recall that we entered into a cap call transaction in connection with the issuance of the 2026 notes to reduce potential dilution or cash outlay upon conversion. Even with the outstanding balance of the 2026 notes down to $17.1 million, we have retained the full potential value of the cap call, up to $92.6 million. Costs and expenses from continuing operations for the second quarter before interest and other income were $32.4 million, which was a decrease of $2.6 million from the first quarter of this year. Research and development expenses in the second quarter were primarily focused on zaltenibart and narsoplimab. The primary components of interest expense include the 2026 notes, the DRI OMIDRIA royalty obligation, the secured term loan, and the 2029 notes. For the second quarter, interest expense was near zero, primarily due to an $8.5 million non-cash remeasurement adjustment related to our DRI OMIDRIA royalty obligation. This adjustment reflects updated forecast of royalty receipts provided by Rayner, excluding the DRI royalty obligation, which is entirely pass-through interest from Rayner to DRI, and amortization of debt issuance costs, debt discounts, and premiums. Contractual cash interest expense was $3.9 million compared to $3.7 million in the prior quarter. The increase was due to the higher interest on the 2029 notes relative to the 2026 notes. Interest and other income totaled $1.2 million in the second quarter, compared to $1.1 million in the first quarter of the year. During the second quarter, we reported an $8.2 million non-cash gain on marking to market our financial instruments. Our financial instruments are comprised of a derivative liability on our 2029 notes, representing the ability of holders to convert their notes to equity. The remeasurement of our 2029 notes at June 30, 2025, resulted in a non-cash gain of $8 million. Income from discontinued operations in the second quarter was $465,000, a decrease of $3.6 million from the first quarter. This decline was primarily due to a remeasurement adjustment stemming from Rayner's downward revision of its forecast for U.S.-based royalties. As a result, we are required to enter GAAP to revise downward our OMIDRIA contract royalty asset and DRI OMIDRIA royalty obligation. It's important to note that the bulk of these transactions involve U.S.-based royalties, which are pass-through in nature. Rayner remits these royalties to DRI via an escrow agent. However, because both Rayner and DRI are contractual counterparties to us, we're required to recognize these amounts as assets and liabilities on our balance sheet. As a reminder, in February 2024, we amended our agreement with DRI, granting them rights to all U.S. and OMIDRIA royalties from Rayner through December 31, 2031. Omeros retains royalties from ex-U.S. sales and will receive all global and OMIDRIA royalties starting January 1, 2032. Now let's look at our expected third quarter 2025 results. We anticipate that overall operating expenses from continuing operations in the third quarter of 2025 will be lower than in the second quarter, primarily due to reduced spending on clinical development of zaltenibart, decreased activity across certain other development programs, and other cost reduction efforts. Interest and other income for the third quarter is expected to be comparable to the second quarter. Interest expense, excluding any non-cash adjustments related to the OMIDRIA royalty obligation and debt derivative revaluations, should be around $9.2 million. This represents a non-cash increase of $9.3 million from the second quarter, primarily reflecting the absence of a significant non-cash adjustment tied to the OMIDRIA royalty obligation, as well as an incremental $500,000 in cash interest associated with the newly issued 2029 convertible notes. Finally, income from discontinued operations is expected to be in the $5 million- $7 million range, excluding any non-cash remeasurement adjustments to the OMIDRIA contract asset. With that, I'll turn the call back over to Greg. Thank you, David. Operator, let's now please open the call to questions. Thank you, ladies and gentlemen. If you have a question or a comment at this time, please press star one one on your telephone. If your question has been answered and you wish to move yourself from the queue, please press star one one again. We'll pause for a moment while we compile our Q&A roster. Our first question comes from Steve Brozak with WBB Securities. Your line is open. Hey, good afternoon, and thanks for the update. I really want to go over the financial modeling of narsoplimab, and I'd like to compare it, if you don't mind. You've launched a product in the past, obviously it's been a while on OMIDRIA, and you've got about $1+ billion in revenue on that product, more at the end of the day. How does that launch compare to what you're preparing for? You know, you can go in as much detail as you like, and I have one follow-up after that. Thanks. Okay. Thanks, Steve. We have not delivered a lot of information publicly about our planned launch projections around the launch. What I can tell you is that it is a significantly more focused market than what we had with OMIDRIA. With OMIDRIA, we were targeting cataract surgeons, of which there are a good number, a large number nationally. With TA-TMA as the indication, transplants are done in 175 centers across the nation. The number of on-the-ground salespeople is significantly less than what we needed for OMIDRIA. That is clearly an advantage. We see the market opportunity, obviously, as large. I think others do as well, which is why there have been others in development for TA-TMA. I think with respect to specific numbers, pricing, launch projections, any of that information, we're going to beg off for that right now, Steve. It's just not the appropriate time, I think, to go through that. Know that we clearly are working through how to optimize the launch and make sure that with narsoplimab, once approved, we are able to reach as many physicians and patients, both in the U.S. and ex-U.S., that we can. We're very confident in. Got it. Okay, that leads me to patient populations you've got are very, very sick. Keep your friction. Can you hear me now? I can now. Okay. Let me dive right in. The patient population you're talking about right now is very, very sick. They've also had extraordinary expenses paid for their treatment process up until the TA-TMA hit. How comfortable are the clinicians that you've talked to or that you've worked with so far in saying, "Yes, they want this product, and it is clearly something that is needed on an urgent basis, and I'll hop back in the queue"? Thank you. My take on that is that the physicians are eagerly awaiting the approval of narsoplimab. Let me hand that over to Nadia, who I think can give you more detailed information on the response from physicians. Nadia? Yeah. Thanks, Greg. Steve, it's really a significant response from physicians about the need for narsoplimab. You can imagine, you just commented on it, that these patients have been through so much just to go on this journey with transplant. To be sort of nearing getting out of the woods and then having a lethal complication is absolutely not what the physicians nor the patients would want. They see this as a much-needed solution, the fact that it would be indicated, the first and only. In terms of those that have had response already through the expanded access program, they're eager to have this approved and be able to assist these patients and to avoid these kinds of complications. That answer the question, Steve? I think if there's any bright side to the length of time we've been waiting to get narsoplimab approved in TA-TMA, it's been the ability for physicians through the expanded access program and obviously through numerous conference presentations, publications to understand the effects of narsoplimab, the benefits of narsoplimab, and frankly, some of the challenges or risks associated with potential competitors in development. Got it. Thanks again for the details. One moment for our next question. Our next question comes from Brandon Folkes with H.C. Wainwright. Your line is open. Hi. My questions, and congratulative focus. First, maybe if you are approved in December, how long would you anticipate before you could launch the product? Maybe just sort of along the same lines, I think going into the prior PDUFA, I'm talking a couple of years ago, I know you bought a fair amount of inventory. I'm just thinking if we should be thinking about the same sort of approach this way around and modeling that into our R&D spend in 4Q. Thank you. All right. Good question, Brandon. Thank you. You were breaking up a bit, but I think I caught it. We again are hopeful that we will reach an approval decision before December. Using your assumptions that approval were to occur in December, we would, as you understand, not be launching in December, but we would be launching then in the first quarter. I think, obviously, we are geared up and ready to go with respect to supply. We have substantial supply, and that is not going to be a challenge in any way for us. Nadia, do you have any comments on the launch or David on supply? I'll build on the launch before David comments on the supply. What we have in place is a plan to, upon approval, immediately train our field team that's in place on the narsoplimab package insert information, and they will be deployed immediately upon certification, followed by the sales reps that would be onboarded. We will be driving awareness, education, and demand immediately upon approval. We have some other things lined up that would be non-personal in terms of digital tools and other things to supplement that because we view this as really, it's two-pronged. We have to continue the education on TA-TMA while then educating on narsoplimab while the supply prepares to fill the channel as well. David, let me hand it back to you. Yeah. With respect to supply, we have adequate supply for the first several years from launch. I think we're in great shape there with respect to our inventory. Brandon? Thank you very much, Greg, everyone. That answers my questions. Congrats on the progress. You're welcome. One moment for our next question. Our next question comes from Olivia Brayer with Cantor. Your line is open. Hey, good afternoon. Thank you for the question. Greg, can you talk about what the FDA requested that actually led to the three-month PDUFA delay? Was it additional data from the historical database or something else? Is there anything in that request that was maybe unexpected? I have one follow-up. Hi, Olivia. Thanks for the question. It was really additional analyses. There were a number of analyses that they were requesting. Frankly, I think it may have been a bit overwhelming the amount of data that we subsequently supplied in response. That is my view of that. Cathy, do you want to elaborate? Yeah. Again, as Greg said, they requested additional analyses. Apparently, felt that they could not review it in time to make the original PDUFA date. As you know, when you get a major amendment, the standard is to add three months onto the PDUFA date. We're continuing to work with FDA, and what we're hoping, as Greg said before, we can bring it in even earlier than the December 26th date. The relationship, Olivia, has been really quite collaborative. I know that there are a number of issues that are at least finding their way into the press around FDA and recent responsiveness. Frankly, we have not encountered any of that with this division. The interactions have been responsive and very collaborative. To date, that's how we have found this process. Good. That's great. I'm happy to hear that, and hopefully, that continues going forward. Can you tell us anything more about the potential partnership that you're pursuing and just maybe, you know, what kind of partnership and which program in particular that you're looking to partner out? Yes. All I can say on that at this point is that there's substantial interest, really, across our programs. We've outlined the parameters of one such partnership, and as you might imagine, we're required to do so as part of our equity financing to make sure that all material non-public information was cleansed. I think we've said really all that we can say or really will say on that topic at this point. I think our referencing it by definition means that it is material from our position. Okay. Understood. Thank you very much. Thanks, Olivia. Thank you. I'm not showing any further questions at this time. I'd like to turn the call back over to Dr. Demopulos for any further remarks. All right. Thank you, operator. Thank you, everyone, for joining this afternoon. We apologize for that initial difficulty with the technical component. I appreciate the help, though, that our provider did put forth to fix the problem quickly. Thank you. As you can see, Omeros has a good number of value-driving milestones in process. We look forward to sharing more information with you throughout the remainder of 2025. All of us at Omeros appreciate your continued support and look forward to sharing further updates with you. Have a good evening. Thank you, ladies and gentlemen. This does conclude today's presentation. We do thank you for your participation, and you may now disconnect and have a wonderful day.