Thank you, Faheem. Today, I am very excited to give an update on the Seralutinib program, including a look at the safety and tolerability, biomarker and clinical activity data we obtained in our Phase 1b open-label extension. As you know, last year, we conducted a Phase 1b and WHO Group 1 functional Class 11-IV PAH patients. The placebo-controlled, randomized, double-blind two-week treatment period was designed to evaluate the safety and tolerability of inhaled Seralutinib as this was our first experience with Seralutinib in patients with PAH. Patients started off at a dose of 45 milligrams BID and we were dose escalated up to 90 milligrams BID at the investigator's discretion. In addition to safety and tolerability, we also were interested in evaluating the Plasma PK and PD profile of Seralutinib in the assessment of target engagement. This Phase 1b study included an open-label extension period, in which patients could receive Seralutinib for up to six months. We enrolled our first subject in the study in the first quarter of 2020. Unfortunately, the first wave of the COVID-19 virus caused site closures and did not allow the initial group of patients on the study to continue on to the open-label extension. As sites began to reopen, we had two patients who enrolled and were able to complete the six month open-label extension. We were very happy to get some initial experience with Seralutinib, and patients with PAH for up to six months, which to our knowledge is the first such data for an inhaled kinase inhibitor. I'll share some of that data in a few slides. But first, on the next slide, I want to take you through how we arrived at the 45 milligram and 90 milligram BID doses we tested in the study. Several approaches were used to inform on dose selection. And we have been pleased thus far to see that the PK and target engagement data validate our thinking. To remind you, Seralutinib was selected and formulated to be an inhaled therapy for PAH that achieves deposition in the deep lung, resulting in greater lung to plasma exposure and hence, potentially a more favorable safety profile. With this intention, our dose levels were informed by a combination of animal model, allometric and direct scaling and PK results from human studies. On the left panel, studies in rats indicate that the lung to plasma exposure ratio is on average 30 times with a half-life that was approximately double in the lung consistent with Seralutinib intended profile as mentioned previously. In terms of allometric and direct scaling approaches, we used efficacy data from animal models of PAH in the Sugen-Hypoxia model, where Seralutinib demonstrated an improvement in hemodynamics, and an effect on remodeling a dose level of 12.8 milligrams per kilogram approximates a 90 milligram BID dose in humans. Finally, we utilized the systemic pharmacokinetic data we generated in our human studies from normal healthy volunteers. Based on the animal model exposure, scaling predictions in plasma exposures, we wanted to ensure adequate levels of drug would be in the lung over the dosing period. We were pleased to see that both our doses are projected to provide adequate free lung concentrations of Seralutinib above both the biochemical and cell based IC50 values or PDGFR alpha, PDGFR beta and c-KIT and the cell based IC54, CSF1R for a 24-hour period. We will further describe these predictions in the next slide as we discuss our PK and target engagement results from PAH patients. One of the key objectives of the Phase 1b study was to ensure that there were no major PK differences in PAH patients compared to normal healthy volunteers. Our data indicated that the PK was similar between PAH patients and normal healthy volunteers. This panel shows the total drug PK profile of inhaled Seralutinib at the two doses of 45 milligrams and 90 milligrams. The PK is characterized by a rapid Tmax of 5 to 6 minutes, with approximately a 4-hour half-life in the systemic circulation. Because we believe that efficacy will be driven by free Seralutinib concentrations in the lung, the next panel on the right shows the projected free drug concentrations in the lung. This slide also shows the observed plasma concentrations from the PAH patients. Both are overlaid starting from the bottom up on to the biochemical IC50s for PDGFR alpha, PDGFR beta, c-KIT and CSF1R. Using the 30 times lung to plasma exposures we observed in our preclinical studies, the concentrations achieved in the lung with the 45 milligram and 90 milligram doses are projected to be adequate to inhibit the targeted kinases. More specifically, as you can see, the orange and green PK curves, again representing the model lung concentrations of the 90 milligram and 45 milligram doses, respectively, remain above the biochemical IC50s for both PDGFR receptors and c-KIT over the course of 12-hours, and CSF1R partially over that time period. With BID dosing, we expect this would provide adequate target coverage in the lung over 24-hours, which may translate into efficacy and PAH. Of note, the observed rapid clearance of Seralutinib in the plasma is just as important as our extended coverage in the lungs. We believe this profile is essential to help avoid the tolerability and safety liabilities seen with orally-administered kinase inhibitors, such as Imatinib in the Phase 3 IMPRES trial in PAH. One of the key measures of pharmacodynamic effect we employed in our Phase 1b study was a flow cytometry-based CSF1R target engagement assay in the whole blood. This took advantage of the fact that Seralutinib targets the CSF1 Receptor, and it could be used as a measure of drug effect through inhibiting receptor internalization. As shown in the bar graph on the left, 5 minutes following inhalation of Seralutinib, there is inhibition of CSF1R internalization, which recovers towards baseline at the 2-hour time point. We interpret these data as showing, first, Seralutinib is inhibiting the pathway of one of its targets, which appears to be consistent with the observed plasma PK curves showing initial exposure approaching and then going below the IC50 of CSF1R. And second, it reflects the intended profile of Seralutinib, that is, rapid clearance from the systemic circulation, lowering the chances for the occurrence of systemic adverse events. Overall, it's encouraging to us that these PK and PD data support the pharmacologic activity of our dose - predictions. Next, we would like to turn to the results from our Phase 1b study in PAH patients. We had 8 subjects who completed the two weeks in which Seralutinib was generally well tolerated. The most frequently reported adverse events were mild to moderate cough associated with inhalation and mild headache. There were no clinically significant change in labs, electrocardiograms, pulmonary function tests or vital signs. New additions to this slide from versions we have shown in the past, our data from the open-label extension. As a reminder, given COVID-related site closures during the first wave of the pandemic, we were limited to two patients who enrolled in the fall of 2020 with extended open-label experience. This small n requires caution when interpreting results from the experience. But we found the data encouraging and wanted to share it with all of you. As background, both subjects were classified as functional Class II, and it came into the study on three background therapies, including oral prostacyclins. We were reassured to see that Seralutinib was tolerated when combined with standard of care therapies in these subjects. No serious adverse events occurred and no safety concerns were identified during the treatment. On the right side of the slide, our biomarker and 6-minute walk data that were collected over the course of the full 6-month experience for these two patients. The graph on the left shows the change in NT-proBNP, which is a biomarker of right heart strain and is used in the risk score calculations of PAH patients. Decreases in NT-proBNP were observed in both patients. The graph to the right depicts changes in the 6-minute walk test, which is a potential registration of clinical endpoint. Both patients increased their 6-minute walk distance over the course of the study. As mentioned previously, we want to be careful not to over interpret data from just two patients. But we are encouraged to see that both patients tolerated 90 milligrams BID of Seralutinib over six months on top of three background therapies and experienced decreases in NT-proBNP and increases in 6-minute walk distance, which are two important measures we are tracking in the TORREY study. The next slide highlights that we have an ePoster Presentation at the upcoming Virtual European Respiratory Society Meeting on September 5th on further biomarker analysis from the two-week treatment period, including data gathered on gene expression changes and evidence of pathway modulation. I will close the Seralutinib update with a quick overview of the Phase 2 TORREY study design and endpoints. We are rolling up to 80 subjects randomized 1:1 to Seralutinib and placebo. We will be testing the same doses in this trial as those study in Phase 1b with patients being up titrated to 90 milligrams twice a day. The primary endpoint of the study is change in pulmonary vascular resistance or PVR at week 24. This study is powered for a change in PVR and we're hoping to see an 18% to 30% placebo corrected improvement, which was - which would put us in the same ballpark as the Imatinib Phase 2 and Phase 3 trials in addition to the more recent Sotatercept Phase 2 results. We will also be looking at 6-minute walk test as a key secondary, though the study is not powered to show a significant treatment effect on this endpoint. Just as a reminder, while Imatinib in its Phase 2 study in the high dose in the Sotatercept PULSAR Phase 2 study both showed 6-minute walk distance improvements of 21 meters to 22 meters, neither were statistically significant results. So while we're hoping to see a similar improvement, effort-based endpoints with a high degree of variance like 6-minute walk distance typically require larger studies to reach statistical significance. We will also be looking at changes in biomarkers like NT-proBNP. Before I turn the call back over to Faheem, I also wanted to give a quick update on the GB004 program. Our HIF-1 alpha Stabilizer for the treatment of IBD including ulcerative colitis. Enrollment in the SHIFT-UC study of GB004 is continuing and we expect to read our top line results for the primary endpoint of clinical remission at 12 weeks in the first half of 2022 pending developments in the COVID-19 pandemic. After that 12-week period, patients who have not worsened are kept on their assigned therapies for an additional 24 weeks to evaluate maintenance through a total of 36 weeks. And finally, in October at UEGW, Silvio Danese, a former President of ECCO in a preeminent IBD KOL at Humanitas University will present a post-hoc analysis of our completed Phase 1b study of GB004 in patients with active UC. The analysis focus - focuses on composite endpoints, combining clinical, endoscopic, histologic and molecular readouts. GB004 outperform placebo across several composite endpoints demonstrating the breadth and depth of improvement some patients experienced on the study, while being treated with GB004. Use of composite endpoints may decrease placebo response and enhance signal detection and we are excited to be pushing the field of IBD research forward alongside Dr. Danese and our other close advisers. With that, I will turn the call back over to Faheem. But I'm happy to answer any questions on the Seralutinib or the GB004 programs during the question-and-answer session. Faheem?